Pfeiffer, Dual Gauge TPG 262 Channel Control Unit, For Compact Gauges Pfeiffer TPG262 Operating Instructions
User Manual:
Open the PDF directly: View PDF 
.
Page Count: 106
| Download | |
| Open PDF In Browser | View PDF |
Operating Instructions DualGauge™ Dual-Channel Measurement and Control Unit for Compact Gauges TPG 262 VACUUM BG 805 196 BE / B (2004-08) 1 Product Identification In all communications with Pfeiffer Vacuum, please specify the information on the product nameplate. For convenient reference copy that information into the space provided below. Pfeiffer Vacuum, D-35614 Asslar Typ: No: F-No: V Validity Hz VA This document applies to products with part number PTG28280. The part number (No.) can be taken from the product nameplate. This manual is based on firmware version 302-510-A. If your unit does not work as described in this document, please check that it is equipped with the above firmware version (→ 60). We reserve the right to make technical changes without prior notice. All dimensions are indicated in mm. 2 BG 805 196 BE / B (2004-08) TPG262.oi Intended Use The TPG 262 is used together with Pfeiffer Vacuum Compact Gauges (in this document referred to as gauges) for total pressure measurement. All products must be operated in accordance with their respective Operating Instructions. Scope of Delivery The scope of delivery consists of following parts: 1 TPG 262 Dual-Channel Measurement and Control Unit 1 Power cord 1 Connector for control connection 4 Collar screws and plastic sleeves 2 Rubber feet 1 Rubber bar 1 Operating Instructions (this document) 1 Betriebsanleitung Trademarks DualGauge™ FullRange™ BG 805 196 BE / B (2004-08) TPG262.oi INFICON AG INFICON GmbH 3 Contents Product Identification Validity Intended Use Scope of Delivery Trademarks 2 2 3 3 3 1 Safety 1.1 Symbols Used 1.2 Personnel Qualifications 1.3 General Safety Instructions 1.4 Liability and Warranty 6 6 7 7 8 2 Technical Data 4 9 3 Installation 3.1 Personnel 3.2 Installation, Setup 3.2.1 Rack Installation 3.2.2 Installation in a Control Panel 3.2.3 Use as Desk-Top Unit 3.3 Mains Power Connector 3.4 Gauge Connectors sensor 1, sensor 2 3.5 control Connector 3.6 relay Connector 3.7 Interface Connector RS232 14 14 14 14 17 18 19 20 21 22 23 4 Operation 4.1 Front Panel 4.2 Turning the TPG 262 On and Off 4.3 Operating Modes 4.4 Measurement mode 4.5 Parameter Mode 4.5.1 Switching Function Parameters 4.5.2 Gauge Parameters 4.5.3 Gauge Control 4.5.4 General Parameters 4.5.5 Test Parameters 24 24 25 26 27 31 33 38 47 54 58 BG 805 196 BE / B (2004-08) TPG262.oi 5 Communication (Serial Interface) 5.1 RS232C Interface 5.1.1 Data Transmission 5.1.2 Communication Protocol 5.2 Mnemonics 5.2.1 Measurement Mode 5.2.2 Parameter Mode 5.2.2.1 Switching Function Parameters 5.2.2.2 Gauge Parameters 5.2.2.3 Gauge Control 5.2.2.4 General Parameters 5.2.2.5 Test Parameters 5.2.3 Example 68 68 68 70 72 73 79 79 80 84 85 86 92 6 Maintenance 93 7 Troubleshooting 94 8 Repair 95 9 Storage 96 10 Disposal 96 Appendix A: Conversion Tables B: Default Parameter Settings C: Firmware Update D: Literature E: Index 97 97 98 99 102 104 Declaration of Conformity 106 For cross-references within this document, the symbol (→ XY) is used, for cross-references to further docu[Z]). ments, listed under "Literature", the symbol (→ BG 805 196 BE / B (2004-08) TPG262.oi 5 1 Safety 1.1 Symbols Used Symbols for residual risks DANGER Information on preventing any kind of physical injury. WARNING Information on preventing extensive equipment and environmental damage. Caution Information on correct handling or use. Disregard can lead to malfunctions or minor equipment damage. Further symbols The lamp/display is lit. The lamp/display flashes. The lamp/display is dark. Press the key (example: PARA key). Do not press any key. 6 BG 805 196 BE / B (2004-08) TPG262.oi 1.2 Personnel Qualifications Skilled personnel All work described in this document may only be carried out by persons who have suitable technical training and the necessary experience or who have been instructed by the end-user of the product. 1.3 General Safety Instructions Adhere to the applicable regulations and take the necessary precautions for all work you are going to do and consider the safety instructions in this document. DANGER Caution: mains voltage Contact with live parts is extremely hazardous when any objects are introduced or any liquids penetrate into the unit. Make sure no objects enter through the louvers and no liquids penetrate into the equipment. Communicate the safety instructions to all other users. BG 805 196 BE / B (2004-08) TPG262.oi 7 1.4 Liability and Warranty 8 Pfeiffer Vacuum assumes no liability and the warranty becomes null and void if the end-user or third parties • disregard the information in this document • use the product in a non-conforming manner • make any kind of interventions (modifications, alterations etc.) on the product • use the product with accessories not listed in the corresponding product documentation. BG 805 196 BE / B (2004-08) TPG262.oi 2 Technical Data Mains specifications Voltage Frequency Power consumption Overvoltage category Protection class Connection Ambiance Temperature storage operation Relative humidity Use Pollution degree Protection type Compatible gauges Number Compatible Compact Gauges Pirani Pirani Capacitance Cold Cathode FullRange™ CC Process Ion FullRange™ BA Capacitance Piezo Gauge connections BG 805 196 BE / B (2004-08) TPG262.oi Number sensor connector 90 … 250 VAC 50 … 60 Hz ≤45 W II 1 European appliance connector IEC 320 C14 –20 … +65 °C + 5 … +50 °C ≤80% up to +31 °C, decreasing to 50% at +40 °C indoors only max. altitude 2000 m NN II IP30 2 TPR 261, TPR 265, TPR 280, TPR 281 PCR 260 IKR 251, IKR 261, IKR 270 PKR 251, PKR 261 IMR 265 PBR 260 CMR 261 … CMR 275 APR 250 … APR 267 2 (1 per channel) Amphenol C91B appliance connector, female, 6-pole (pin assignment → 20) 9 Gauge supply Voltage Current Power Fuse protection +24 VDC ±5% 750 mA 18 W 900 mA with PTC element, self-resetting after turning the TPG 262 off or disconnecting the gauge. The supply conforms to the requirements of a grounded protective extra low voltage (SELV-E according to EN 61010). Operation Front panel Remote control via 4 keys via RS232C interface Measurement values Measurement ranges depending on gauges (→ [1] … [14]) Measurement error gain error offset error Measurement rate Display rate Filter time constant slow normal (nor) fast Measurement units Offset correction Calibration factor A/D converter 10 ≤0.01% F.S. ≤0.01% F.S. 50 / s 10 / s 1.2 s (fg = 0.13 Hz) 400 ms (fg = 0.4 Hz) 20 ms (fg = 8 Hz) mbar, Pa, Torr for linear gauges –5 … 110% F.S. for logarithmic gauges 0.10 … 9.99 for linear gauges 0.500 … 2.000 resolution 0.001% F.S. BG 805 196 BE / B (2004-08) TPG262.oi Switching functions Number Reaction delay Adjustment range Hysteresis Switching function relays Contact type Load max. Service life mechanic electric Contact positions Relay connector 4 (user-assignable) ≤20 ms if switching threshold close to measurement value (for larger differences consider filter time constant). depending on gauge (→ [1] … [14]) ≥1% F.S. for linear gauges, ≥10% of measurement value for logarithmic gauges floating changeover contact 30 VAC, 30 W (ohmic) 60 VDC, 1 A, 30 W (ohmic) 5×107 cycles 1×105 cycles (at max. load) → 22 D-Sub appliance connector, female, 15-pole (pin assignment → 22) Error signal Number Reaction time 1 ≤20 ms Error signal relay Contact type Load max. floating normally open contact 30 VAC, 30 W (ohmic) 60 VDC, 1 A, 30 W (ohmic) Service life mechanic electric Contact positions Control connector BG 805 196 BE / B (2004-08) TPG262.oi 5×107 cycles 1×105 cycles (at max. load) → 21 Amphenol C91B appliance connector, female, 7-pole (pin assignment → 21) 11 Gauge control Automatic ON setpoint OFF setpoint adjustable (→ 50) adjustable (→ 52) Manual via keys activation/deactivation (→ 28, 49, 51) External via control connector ON condition OFF condition signal ≤ +0.8 VDC signal +2.0 … 5 VDC or input open Hotstart when mains power on (→ 50) Self control deactivation when pressure is rising OFF threshold Control connector Analog outputs Number Voltage range Internal resistance Measuring signal vs. pressure Control connector 2 (1 per channel) 0 … +10 VDC 660 Ω depending on gauge (→ [1] … [14]) Amphenol C91B appliance connector, female, 7-pole (pin assignment → 21) Interface Standard Protocol RS232C ACK/NAK, ASCII with 3-character mnemonics, bi-directional data flow, 8 data bits, no parity bit, 1 stop bit only TXD and RXD used 9600, 19200, 38400 baud D-Sub appliance connector, male, 9-pole (pin assignment → 23) RS232C Transmission rate RS232 connector 12 adjustable (→ 52) Amphenol C91B appliance connector, female, 7-pole (pin assignment → 21) BG 805 196 BE / B (2004-08) TPG262.oi Dimensions [mm] 70.8 55.9 ≈310 228.5 ø3.5 2.5 68.1 111.6 122.5 128.5 VACUUM Use For incorporation into a rack or control panel or as desktop unit. Weight 1.06 kg BG 805 196 BE / B (2004-08) TPG262.oi 13 3 Installation 3.1 Personnel Skilled personnel The unit may only be installed by persons who have suitable technical training and the necessary experience. 3.2 Installation, Setup The TPG 262 is suited for incorporation into a 19" rack or a control panel or for use as desk-top unit. DANGER Caution: damaged product Putting a damaged product into operation can be extremely hazardous. In case of visible damages, make sure the product is not put into operation. 3.2.1 Rack Installation The TPG 262 is designed for installation into a 19" rack chassis adapter according to DIN 41 494. For this purpose, four collar screws and plastic sleeves are supplied with it. DANGER Caution: protection class of the rack If the product is installed in a rack, it is likely to lower the protection class of the rack (protection against foreign bodies and water) e.g. according to the EN 60204-1 regulations for switching cabinets. Take appropriate measures for the rack to meet the specifications of the protection class. 14 BG 805 196 BE / B (2004-08) TPG262.oi Guide rail In order to reduce the mechanical strain on the front panel of the TPG 262, preferably equip the rack chassis adapter with a guide rail. Slide rails For safe and easy installation of heavy rack chassis adapters, preferably equip the rack frame with slide rails. BG 805 196 BE / B (2004-08) TPG262.oi 15 Height 3 U rack chassis adapter n Secure the rack adapter in the rack frame. The admissible maximum ambient temperature (→ 9) must not be exceeded neither the air circulation obstructed. Rack chassis adapter Height 3 U o Slide the TPG 262 into the rack chassis adapter … … and fasten the adapter panel to the rack chassis adapter using the screws supplied with the TPG 262. 16 BG 805 196 BE / B (2004-08) TPG262.oi 3.2.2 Installation in a Control Panel DANGER Caution: protection class of the control panel If the product is installed in a control panel, it is likely to lower the protection class of the control panel (protection against foreign bodies and water) e.g. according to the EN 60204-1 regulations for switching cabinets. Take appropriate measures for the control panel to meet the specifications of the protection class. For mounting the TPG 262 into a control panel, the following cut-out is required: 70 The admissible maximum ambient temperature (→ 9) must not be exceeded neither the air circulation obstructed. 113 122.5 55.9 M3 or ø 3.5 For reducing the mechanical strain on the front panel, preferably support the unit. BG 805 196 BE / B (2004-08) TPG262.oi 17 n Slide the TPG 262 into the cut-out of the control panel … … and secure it with four M3 or equivalent screws. 3.2.3 Use as Desk-Top Unit The TPG 262 is also suited for use as desk-top unit. For this purpose, two self-adhesive rubber feet as well as a slip-on rubber bar are supplied with it. n Stick the two supplied rubber feet to the rear part of the bottom plate … … and slip the supplied rubber bar onto the bottom edge of the front panel. 18 BG 805 196 BE / B (2004-08) TPG262.oi Select a location where the admissible maximum ambient temperature (→ 9) is not exceeded (e.g. due to sun irradiation). 3.3 Mains Power Connector DANGER Caution: line voltage Incorrectly grounded products can be extremely hazardous in the event of a fault. Use only a 3-conductor power cable with protective ground. The power connector may only be plugged into a socket with a protective ground. The protection must not be nullified by an extension cable without protective ground. The unit is supplied with a power cord. If the mains connector is not compatible with your system, use your own, suitable cable with protective ground (3×1.5 mm3). The socket must be fuse-protected with 10 Amax If the unit is installed in a switching cabinet, the mains voltage should be supplied and turned on via a central distributor. BG 805 196 BE / B (2004-08) TPG262.oi 19 Do not unfasten this screw (internal ground protection) 3.4 Gauge Connectors sensor 1, sensor 2 For each measurement channel, there is a female appliance connector on the rear of the unit. Connect the gauge to the sensor connector via a sensor cable set available from us (→ sales literature) or your own, screened (electromagnetic compatibility) sensor cable. Use compatible gauges only (→ 9). Pin assignment sensor 1, sensor 2 2 1 2 1 3 4 5 3 6 6 5 4 Pin assignment of the two female 6-pole Amphenol C91B appliance connectors: Pin 1 6 2 3 4 5 20 Signal Identification Supply Supply common Signal input Signal common Screening +24 VDC GND (measuring signal+) (measuring signal–) BG 805 196 BE / B (2004-08) TPG262.oi 3.5 control Connector This connector allows to read the measuring signal, to evaluate the state of the floating contacts of the error relay, and to activate or deactivate the gauges (→ 47). Connect the peripheral components to the control connector on the rear of the unit using your own, screened (electromagnetic compatibility) cable. Pin assignment Contact positions control 1 Pin 2 1 5 4 6 3 7 1 6 2 2 3 7 8 8 4 7 3 5 Pin assignment of the female 7-pole Amphenol C91B appliance connector: 4 6 5 Signal Analog output gauge 1 Analog output gauge 2 Screening GND Gauge 1 on off Gauge 2 on off 0 … 10 VDC 0 … 10 VDC signal ≤+0.8 VDC signal +2.0 … 5 VDC or input open signal ≤+0.8 VDC signal +2.0 … 5 VDC or input open No error Error or power supply turned off A suitable connector is supplied with the TPG 262. BG 805 196 BE / B (2004-08) TPG262.oi 21 3.6 relay Connector This connector allows to use the floating switching contacts for an external control system. Connect the peripheral components to the relay connector on the rear of the unit using your own, screened (electromagnetic compatibility) cable. Pin assignment Contact positions relay 8 15 9 1 Pin assignment of the female 15-pole D-Sub appliance connector: Pin Signal Switching function 1 4 3 2 Pressure below threshold Pressure above threshold or power supply turned off Switching function 2 7 6 5 Pressure below threshold Pressure above threshold or power supply turned off Switching function 3 11 10 9 Pressure below threshold Pressure above threshold or power supply turned off Switching function 4 14 13 12 15 1 8 22 Pressure below threshold Pressure above threshold or power supply turned off Supply for relays with higher switching power Fuse-protected at 300 mA with PTC element, self-resetting after power +24 VDC, 200 mA off or pulling the relay connector. GND Meets the requirements of a GND grounded protective extra low voltage (SELV-E according to EN 61010). BG 805 196 BE / B (2004-08) TPG262.oi 3.7 Interface Connector RS232 The RS232C interface allows for operating the TPG 262 via a HOST or terminal (→ 68). It can also be used for updating the firmware (→ 99). Connect the serial interface to the RS232 connector on the rear of the unit using your own, screened (electromagnetic compatibility) cable. e.g. PC TPG 262 Chassis Chassis RXD 2 RXD TXD 3 TXD GND 5 GND (Minimum configuration) Pin assignnment RS232 Screening Pin assignment of the male 9-pole D-Sub appliance connector: BG 805 196 BE / B (2004-08) TPG262.oi 9 5 1 6 Pin Signal Pin 2 3 5 RXD TXD GND 1 6 9 4 7 8 DTR RTS CTS Signal not connected not connected not connected Casing = screening 23 4 Operation 4.1 Front Panel Measurement value in floating point or exponential format or status messages Parameter mode activated VACUUM Measurement unit Warning/error (flashing) Operator keys Switching function status Offset value ≠ 0 Correction factor ≠ 1 Degas activated Gauge activated Active measurement channel 24 BG 805 196 BE / B (2004-08) TPG262.oi 4.2 Turning the TPG 262 On and Off Turning the TPG 262 on Make sure the TPG 262 is correctly installed and the specifications in the Technical Data are met. The power switch is on the rear of the unit. Turn the TPG 262 on with the power switch (or centrally, via a switched power distributor, if the unit is incorporated in a rack). After power on, the TPG 262 … • automatically performs a self-test • identifies the connected gauge • activates the parameters that were in effect before the last power off • switches to the Measurement mode • adapts the parameters if required (if another gauge was previously connected). Turning the TPG 262 off Turn the TPG 262 off with the power switch (or centrally, via a switched power distributor, if the unit is incorporated in a rack). Wait at least 10 s before turning the TPG 262 on again in order for it to correctly initialize itself. BG 805 196 BE / B (2004-08) TPG262.oi 25 4.3 Operating Modes The TPG 262 works in the following operating modes: • Measurement mode for displaying measurement values or statuses (→ 27) • Parameter mode for displaying or editing parameters (→ 31) − Switching function parameter group for entering or displaying thresholds (→ 33) − Gauge parameter group for entering or displaying gauge parameters (→ 38) − Gauge control group for entering or displaying gauge control parameters (→ 47) − General parameter group for entering or displaying general parameters (→ 54) − Test program group for running internal test programs (→ 58) • Program transfer mode for updating the firmware (→ 99) 26 BG 805 196 BE / B (2004-08) TPG262.oi 4.4 Measurement mode The Measurement mode is the standard operating mode of the TPG 262. Measurement values and statuses as well as the gauge identification are displayed in this mode. Measurement mode depending on history Parameter mode Measurement value Status Gauge identification Power on Measurement value Status Gauge identification >10 s BG 805 196 BE / B (2004-08) TPG262.oi 27 Selecting a measurement channel Ö Channel 1 is activated Ö Channel 2 is activated Turning a gauge on and off Certain gauges can be turned on and off manually, if the gauge control is set to (→ 51). Available for: Pirani Gauge Pirani Capacitance Gauge ; Cold Cathode Gauge ; FullRange™ CC Gauge ; Process Ion Gauge ; FullRange™ BA Gauge Capacitance Gauge Piezo Gauge (TPR) (PCR) (IKR) (PKR) (IMR) (PBR) (CMR) (APR) Ö Press key >1 s: The gauge is turned off. is displayed instead of the measurement value. Ö Press key >1 s: The gauge is turned on. A status message may be displayed instead of the measurement value. 28 BG 805 196 BE / B (2004-08) TPG262.oi Measurement range Pressure p BG 805 196 BE / B (2004-08) TPG262.oi 29 Ö Press keys >0.5 s: The type of the connected gauges is automatically identified and displayed for 4 s (2 s per channel): Displaying the gauge identification Pirani Gauge (TPR 261, TPR 265, TPR 280, TPR 281) Pirani Capacitance Gauge 1) (PCR 260) Cold Cathode Gauge (IKR251, IKR261) Cold Cathode Gauge (IKR270) FullRange™ CC Gauge (PKR251, PKR261) Process Ion Gauge (IMR265) FullRange™ BA Gauge (PBR260) Capacitance Gauge (CMR261 … CMR275) Piezo Gauge (APR250 … APR267) No gauge connected (no Sensor) Connected gauge cannot be identified (no Identifier) 1) TPR and PCR have identical identifiers. In the TPG 262, there is no distinction made on the display and in data evaluation, since pressure ranges of these gauges are approximately the same. Getting to the Parameter mode 30 → 31 BG 805 196 BE / B (2004-08) TPG262.oi 4.5 Parameter Mode The Parameter mode is used for displaying, editing and entering parameter values as well as for testing the TPG 262. For ease of operation, the parameters are divided into groups. Measurement mode Parameter mode Switching function parameters depending on history Gauge parameters Gauge control Power on General parameters >10 s Test parameters BG 805 196 BE / B (2004-08) TPG262.oi 31 Selecting a parameter group Ö Switching function parameters → 33 Gauge parameters → 38 Gauge control → 47 General parameters → 54 Test parameters → 58 Selecting a parameter in a parameter group Editing a parameter in a parameters group 32 Modifications of parameters come into effect immediately and are stored automatically. Exceptions are mentioned under the corresponding parameters. BG 805 196 BE / B (2004-08) TPG262.oi 4.5.1 Switching Function Parameters The switching function parameter group (setpoint parameters) is used for displaying, entering and editing threshold values and assigning the four switching functions to a measurement channel. Parameter mode depending on history Switching function 1 lower threshold Measurement mode Switching function 1 upper threshold >10 s Switching function 2 lower threshold Swiching function 4 upper threshold BG 805 196 BE / B (2004-08) TPG262.oi 33 The TPG 262 has four switching functions with two adjustable thresholds each. The status of the switching function is displayed on the front panel (→ 24, 21) and can be evaluated via the floating contacts at the Control connector. Pressure p ue ent val urem s a Me Switching function Display Time t Selecting a parameter 4 3 2 4 3 2 Off 4 3 2 On Off Ö The name of the parameter, e.g.: Switching function 1 lower setpoint is displayed as long as the key is pressed or at least for 1.5 s. Afterwards, the currently valid threshold value is displayed. 34 BG 805 196 BE / B (2004-08) TPG262.oi Ö Press key <1 s: The value is increased/ decreased by 1 increment. Editing the threshold value Press key >1 s: The value is increased/ decreased continuously. Value Limits of the lower switching thresholds The lower switching threshold (Setpoint low) defines the pressure at which the switching function is activated when the pressure is dropping. Ö gauge dependent (→ table). If another gauge type is connected, the TPG 262 automatically adjusts the switching threshold if required. upper threshold limit lower threshold limit e.g.: 5×10-4 1500 1×10-9 1×10-2 1×10-11 1×10-2 1×10-9 1000 1×10-6 1000 5×10 1000 -10 F.S. / 1000 F.S. all values in mbar, CAL=1 BG 805 196 BE / B (2004-08) TPG262.oi 35 The minimum hysteresis between the upper and lower switching threshold is at least 10% of the lower threshold or 1% of the set full scale value. If the value of the minimum hysteresis drops below these values, the upper threshold is automatically adjusted to a minimum hysteresis. This prevents unstable states. Value Limits of the upper switching thresholds The upper switching threshold (Setpoint high) defines the pressure at which the switching function is deactivated when the pressure is rising. lower threshold limit lower threshold upper thershold limit Ö Gauge dependent (→ table). If another gauge type is connected, the TPG 262 automatically adjusts the threshold if required. e.g.: +10% lower threshold 1500 +10% lower threshold 1×10-2 +10% lower threshold 1×10-2 +10% lower threshold 1000 +10% lower threshold 1000 +10% lower threshold 1000 +1% measurement range (F.S.) F.S. all values in mbar, CAL=1 36 BG 805 196 BE / B (2004-08) TPG262.oi The minimum hysteresis between the upper and lower switching threshold is at least 10% of the lower threshold or 1% of the set full scale value. If the value of the minimum hysteresis drops below these values, the upper threshold is automatically adjusted to a minimum hysteresis. This prevents unstable states. Ö Switching function is assigned to channel 1. Assigning a switching function Ö Switching function is assigned to channel 2. The lower and the upper switching threshold of a switching function are always assigned to the same channel. The last assignment is valid for both thresholds. BG 805 196 BE / B (2004-08) TPG262.oi 37 4.5.2 Gauge Parameters The Gauge parameter group (sensor parameters) is used for displaying, entering and editing parameters of the connected gauges. Parameter mode depending on history Filter time constant Measurement mode Calibration factor Measurement range >10 s Offset Penning Underrange Control Degas 38 BG 805 196 BE / B (2004-08) TPG262.oi Ö The name of the parameter, Selecting a parameter e.g.: Filter time constant is displayed as long as the key is pressed or at least for 1.5 s. Afterwards, the currently valid threshold value is displayed. Some parameters are not available for all gauges and thus not always displayed. Available for → 39 41 42 43 44 46 *) *) *) depending on pressure Measurement value filter The measurement value filter permits a better evaluation of unstable or disturbed measuring signals. The measurement value filter does not affect the analog output (→ 21). BG 805 196 BE / B (2004-08) TPG262.oi 39 Value Ö Fast: The TPG 262 responds quickly to fluctuations of the measurement value. As a result, it will respond faster to interference in the measured values. Pressure p Time t Ö Normal: Good relationship between response and sensitivity of the display and the switching function to changes in the measured values. Pressure p Time t Ö Slow: The TPG 262 does not respond to small changes in measured values. As a result, it will respond more slowly to changes in the measured values. Pressure p Time t 40 BG 805 196 BE / B (2004-08) TPG262.oi Ö The value is increased/ decreased by the defined increments. Calibration factor The calibration factor allows the measured value to be calibrated for other gases than N2 (→ characteristic curves in [1] … [12]). Available for: ; Pirani Gauge ; Pirani Capacitance Gauge ; Cold Cathode Gauge ; FullRange™ CC Gauge ; Process Ion Gauge *) ; FullRange™ BA Gauge **) ; Capacitance Gauge ; Piezo Gauge *) **) (TPR) (PCR) (IKR) (PKR) (IMR) (PBR) (CMR) (APR) only for pressures <1×10-2 mbar. only for pressures <1×10-1 mbar. Value Ö No correction e.g.: e.g.: BG 805 196 BE / B (2004-08) TPG262.oi Ö Measurement value corrected by a factor of 0.10 … 9.99 (logarithmic gauges). Measurement value corrected by a factor of 0.500 … 2.000 (linear gauges). 41 Ö Press key <1 s: The value is increased/ decreased by 1 increment. Press key >1 s: The value is increased/ decreased continuously. Measurement range (F.S.) of linear gauges For linear gauges, the full scale (F.S.) value has to be defined according to the connected gauge type. For logarithmic gauges it is automatically recognized. Available for: Pirani Gauge Pirani Capacitance Gauge Cold Cathode Gauge FullRange™ CC Gauge Process Ion Gauge FullRange™ BA Gauge ; Capacitance Gauge ; Piezo Gauge (TPR) (PCR) (IKR) (PKR) (IMR) (PBR) (CMR) (APR) Value e.g.: Ö 0.01 mbar 0.1 mbar 1 mbar 10 mbar 100 mbar 1000 mbar 2 bar 5 bar 10 bar 50 bar Conversion table → Appendix 97 Ö The value is increased/ decreased by the defined increments. 42 BG 805 196 BE / B (2004-08) TPG262.oi Offset correction The offset value is displayed and readjusted according to the actual measurement value (in the range of -5 … +110% of the set full scale value). Available for: Pirani Gauge Pirani Capacitance Gauge Cold Cathode Gauge FullRange™ CC Gauge Process Ion Gauge FullRange™ BA Gauge ; Capacitance Gauge ; Piezo Gauge (TPR) (PCR) (IKR) (PKR) (IMR) (PBR) (CMR) (APR) The offset correction affects: ; the displayed measurement value the displayed threshold value of the switching functions the analog outputs at the control connector (→ 21) Value Ö Offset correction deactivated e.g.: Ö Offset correction activated Ö Press key >1.5 s: The offset value is readjusted. The actual measurement value is accepted as new offset value. Ö Reset the offset value. When the offset correction is activated, the saved offset value is subtracted from the actual measurement value. This allows measuring relative to a reference pressure. When the zero of the gauge is readjusted, the offset correction must be deactivated. BG 805 196 BE / B (2004-08) TPG262.oi 43 Underrange control Behavior in the event of an underrange with Cold Cathode Gauges (Penning underrange control). Available for: Pirani Gauge Pirani Capacitance Gauge ; Cold Cathode Gauge FullRange™ CC Gauge Process Ion Gauge FullRange™ BA Gauge Capacitance Gauge Piezo Gauge (TPR) (PCR) (IKR) (PKR) (IMR) (PBR) (CMR) (APR) There is a number of possible causes of an underrange: • the pressure in the vacuum system is lower than the measurement range • the measurement element has not ignited (yet) • the discharge has failed • a defect has occurred Caution Caution: relay is switching An underrange can lead to unintended reactions of the connected control system. Prevent false control signals and messages by disconnecting the sensor and control cables. Value Ö Underrange state is interpreted as admissible measurement value. is displayed. The switching function remains ON. Ö Underrange state is interpreted as inadmissible measurement value. is displayed. The switching function changes to OFF. 44 BG 805 196 BE / B (2004-08) TPG262.oi Ö Activate/deactivate the underrange control. If chances are that the pressure in the vacuum system drops below the measurement range of the gauge, it is advisable to select . If is selected, the evaluation of the switching function is suppressed for approx. 10 seconds when the gauge is turned on and each time after an underrange has occurred. During this time, the switching function remains OFF. BG 805 196 BE / B (2004-08) TPG262.oi 45 Degas Contamination deposits on the electrode system of hot cathode gauges may cause instabilities of the measurement values. The Degas function allows to clean the electrode system. Available for: (TPR) Pirani Gauge Pirani Capacitance Gauge (PCR) Cold Cathode Gauge (IKR) FullRange™ CC Gauge (PKR) Process Ion Gauge (IMR) ; FullRange™ BA Gauge (PBR ) Capacitance Gauge (CMR) Piezo Gauge (APR) Value Ö Normal operation. Ö Degas: The electron collection grid is heated to ≈700 °C by electron bombardment and the electrode system is thus cleaned. Ö Start Degas. Duration of the Degas function 3 min. (can be aborted). Ö Abort Degas. 46 BG 805 196 BE / B (2004-08) TPG262.oi 4.5.3 Gauge Control The Gauge control group (control parameters) is used for displaying, entering and editing parameters which define how the connected gauges are activated/ deactivated. If the connected gauges cannot be controlled (→ 49), this group is not available. Parameter mode depending on history Measurement mode Gauge activation ON threshold Gauge deactivation >10 s OFF threshold BG 805 196 BE / B (2004-08) TPG262.oi 47 Ö The name of the parameter, Selecting a parameter e.g.: Gauge activation is displayed as long as the key is pressed or at least for 1.5 s. Afterwards, the currently valid threshold value is displayed. Some parameters are not available for all gauges and thus not always displayed. 50 51 52 Available for → 49 48 BG 805 196 BE / B (2004-08) TPG262.oi Gauge activation Certain gauges can be activated by different means. The following gauges can be controlled: (TPR) Pirani Gauge Pirani Capacitance Gauge (PCR) ; Cold Cathode Gauge (IKR) ; FullRange™ CC Gauge *) (PKR) ; Process Ion Gauge (IMR) ; FullRange™ BA Gauge (PBR) Capacitance Gauge (CMR) Piezo Gauge (APR) *) except by a gauge connected to the other measurement channel Value Ö Automatic activation: The gauge is activated by one of the following gauges connected to the other measurement channel. ; ; ; ; ; ; ; *) Pirani Gauge Pirani Capacitance Gauge Cold Cathode Gauge FullRange™ CC Gauge Process Ion Gauge FullRange™ BA Gauge Capacitance Gauge *) Piezo Gauge *) (TPR) (PCR) (IKR) (PKR) (IMR) (PBR) (CMR) (APR) only gauges with F.S. 1, 10 or 100 mbar Ö Manual activation: The gauge is activated by pressing the key. Ö External activation: The gauge is activated by an input signal fed via the control connector (→ 21). Ö Hot start: The gauge is automatically activated when the TPG 262 is turned on. Measurement is thus automatically resumed after a power failure. Gauge deactivation → 51. BG 805 196 BE / B (2004-08) TPG262.oi 49 Ö Increase/decrease the value by the defined increments. ON threshold Definition of the ON threshold for the gauge to be activated by a gauge connected to the other measurement channel. Available for: Pirani Gauge Pirani Capacitance Gauge ; Cold Cathode Gauge FullRange™ CC Gauge ; Process Ion Gauge ; FullRange™ BA Gauge Capacitance Gauge Piezo Gauge (TPR) (PCR) (IKR) (PKR) (IMR) (PBR) (CMR) (APR) Adjustment range → table below e.g.: PKR IMR PBR TPR PCR -3 -2 -5 CMR, APR F.S.=1 -2 -3 F.S.=10 -2 F.S.=100 IKR 10 …10 10 …10 10 …10 IMR -3 10 …1 -5 10 …1 -3 — — -2 -1 10 …1 10 …1 10 …1 PBR 10-3…1 10-5…1 10-3…1 10-2…1 10-1…1 all values in mbar, CAL=1 Value 50 must be ≥ BG 805 196 BE / B . (2004-08) TPG262.oi Ö Press key <1 s: The value is increased/ decreased by 1 increment. Press key >1 s: The value is increased/ decreased continuously. Gauge deactivation Certain gauges can be deactivated by different means. The following gauges can be controlled: (TPR) Pirani Gauge Pirani Capacitance Gauge (PCR) ; Cold Cathode Gauge (IKR) ; FullRange™ CC Gauge *, **) (PKRx) ; Process Ion Gauge *) (IMR) ; FullRange™ BA Gauge *) (PBR) Capacitance Gauge (CMRx) Piezo Gauge (APR) *) **) except for self control except by a gauge connected to the other measurement channel Value Ö Automatic deactivation: The gauge is deactivated by one of the following gauges connected to the other measurement channel. ; ; ; ; ; ; ; *) Pirani Gauge Pirani Capacitance Gauge Cold Cathode Gauge FullRange™ CC Gauge Process Ion Gauge FullRange™ BA Gauge Capacitance Gauge *) Piezo Gauge *) (TPR) (PCR) (IKR) (PKR) (IMR) (PBR) (CMR) (APR) only for gauges with F.S. 1, 10, or 100 mbar Ö Manual deactivation: The gauge is deactivated by pressing the key. Ö External deactivation: The gauge is deactivated by an input signal via the control BG 805 196 BE / B (2004-08) TPG262.oi 51 connector (→ 21). Additionally for Cold Cathode Gauge: Ö Self control: The gauge deactivates itself when the pressure rises (→ 52). Ö Increase/decrease the value by the defined increments. OFF threshold Definition of the OFF threshold for the gauge to be deactivated by a gauge connected to the other measurement channel or by itself. Available for: Pirani Gauge Pirani Capacitance Gauge ; Cold Cathode Gauge FullRange™ CC Gauge ; Process Ion Gauge ; FullRange™ BA Gauge Capacitance Gauge Piezo Gauge (TPR) (PCR) (IKRx) (PKR) (IMR) (PBR) (CMR) (APR) Adjustment range → table below e.g.: 52 BG 805 196 BE / B (2004-08) TPG262.oi IKR IMR PBR TPR PCR PKR IMR PBR 10-3…10-2 10-5…10-2 -3 10 …1 -3 10 …1 CMR, APR F.S.=1 -5 10 …1 -5 10 …1 10-3…10-2 -3 10 …1 -3 10 …1 F.S.=10 F.S.=100 — — -2 -1 10 …1 -2 10-1…1 10 …1 10 …1 all values in mbar, CAL=1 Value must be ≥ . Ö Press key <1 s: The value is increased/ decreased by 1 increment. Press key >1 s: The value is increased/ decreased continuously. BG 805 196 BE / B (2004-08) TPG262.oi 53 4.5.4 General Parameters The General parameters group (general parameters) is used for displaying, entering and editing generally applicable system parameters. Parameter mode depending on history Measurement unit Measurement mode Transmission rate Display resolution >10 s Default settings Display changeover 54 BG 805 196 BE / B (2004-08) TPG262.oi Ö The name of the parameter, Selecting a parameter e.g.: Measurement unit is displayed as long as the key is pressed or at least for 1.5 s. Afterwards, the currently valid threshold value is displayed. The parameters are available for all gauge types and thus always displayed. Available for → 56 Editing a parameter BG 805 196 BE / B (2004-08) TPG262.oi 56 56 57 57 all gauges Ö Increase/decrease the value by the defined increments. 55 Measurement unit Unit of measured values, thresholds etc. See Appendix (→ 97) for conversion. Value Ö mbar/bar Ö Torr (only available if Torr lock is not activated i.e. Torr is not suppressed → 63) Ö Pascal Transmission rate Transmission rate of the RS232C interface. Value e.g.: Display resolution (digits) Ö 9600 baud 19200 baud 38400 baud Display resolution of measured values. Value Ö Display • rounded to one decimal digit • or two integrals Ö Display • rounded to two decimal digits • or three integrals 56 BG 805 196 BE / B (2004-08) TPG262.oi Default values All user parameter settings are replaced by the factory settings. Loading of the default parameter settings is irreversible. Value Ö The default values are loaded (→ 98). Display changeover Definition of the measurement display behavior when a Pirani gauge or a Pirani Capacitance Gauge is combined with a linear gauge with F.S. 1000 mbar. 10 mbar 1000 mbar 5×10-4 mbar Pirani gauge Linear gauge or Pirani Capacitance Gauge Automatic display changeover is available for this gauge combination only. Value Ö Manual change of measurement value display Ö Automatic change of measurement value display when the measured value of the linear gauge drops below or rises above 10 mbar BG 805 196 BE / B (2004-08) TPG262.oi 57 4.5.5 Test Parameters The Test parameter group is used for displaying the firmware version, entering and editing special parameter values, and for running test programs. This group is only available if the key was pressed while the TPG 262 was turned on. Parameter mode depending on history Power on Firmware version Measurement mode Watchdog control Keylock RAM test program RS232C test program 58 BG 805 196 BE / B (2004-08) TPG262.oi Ö The name of the parameter, Selecting a parameter e.g.: Firmware version is displayed. The parameters are available for all gauge types and thus always displayed. → 60 61 61 Available for all gauges 61 The name of the parameter is displayed as long as the key is pressed or at least for 1.5 s. The firmware version is continuously displayed. 62 63 63 64 64 64 65 65 67 Available for all gauges → 62 The name of the test program is displayed until it is started. BG 805 196 BE / B (2004-08) TPG262.oi 59 Editing a parameter Ö Increase/decrease the value by the defined increments. Starting the test program Ö Start test program. Firmware version The firmware version (program version) is displayed. Version Ö The two parts of the firmware number are displayed alternately. The last character indicates the modification index (-, A … Z). Please mention this index when contacting Pfeiffer Vacuum in the event of a problem. 60 BG 805 196 BE / B (2004-08) TPG262.oi Watchdog control Behavior of the system control (watchdog) in the event of an error. Setting Ö The system automatically acknowledges error messages of the watchdog after 2 s. Ö Error messages of the watchdog have to be acknowledged by the operator. Torr lock The measurement unit can be suppressed in the corresponding parameter setting (→ 56). Setting Ö Measurement unit available. Ö Measurement unit available. Keylock not The keylock function prevents inadvertent entries in the Parameter mode and thus malfunctions. Setting Ö Keylock function disabled. Ö Keylock function enabled. is displayed when the user attempts to edit a setting in the Parameter mode. BG 805 196 BE / B (2004-08) TPG262.oi 61 RAM test Test of the main memory. Test sequence The test runs automatically one time: Ö Test in process (very briefly). Ö Test finished, no error found. Ö Test finished, error(s) found. The lamp flashes. If the error message persists after several test sequences have been run, please contact your local Pfeiffer Vacuum service center. EPROM test Test of the program memory. Test sequence The test runs automatically one time: Ö Test in process Ö Test finished, no error found. After the test, a four-digit checksum (hexadecimal format) is displayed. Ö Test finished, error(s) found. After the test, a four-digit checksum (hexadecimal format) is displayed. The lamp flashes. If the error message persists after several test sequences have been run, please contact your local Pfeiffer Vacuum service center. 62 BG 805 196 BE / B (2004-08) TPG262.oi EEPROM test Test of the parameter memory. Test sequence The test runs automatically one time: Ö Test in process (very briefly). Ö Test finished, no error found. Ö Test finished, error(s) found. The lamp flashes. If the error message persists after several test sequences have been run, please contact your local Pfeiffer Vacuum service center. Display test Test of the display. Test sequence The test runs automatically one time*): Ö First, all display elements are lit at the same time, ... Ö ... and then, each element is lit individually. : *) BG 805 196 BE / B (2004-08) TPG262.oi Ö Stop the test sequence and activate one element after another by pressing the key once per element. 63 A/D converter test 0 Test of channel 0 of the analog/digital converter (with a reference voltage at the signal input of the sensor connector (→ 20)). If the signal input is open, the TPG 262 displays a default value that may easily fluctuate because of the high sensitivity of the open measurement circuit. Test sequence Ö Measuring signal CH1 in Volt. e.g.: A/D converter test 1 Test of channel 1 of the analog/digital converter (with a reference voltage at the signal input of the sensor connector (→ 20)). If the signal input is open, the TPG 262 displays a default value that may easily fluctuate because of the high sensitivity of the open measurement circuit. Test sequence Ö Measuring signal CH2 in Volt. e.g.: A/D converter test 2 Test of channel 2 of the analog/digital converter (with a reference voltage at the identification input of the sensor connector (→ 20). If the signal input is open, the TPG 262 displays a default value that may easily fluctuate because of the high sensitivity of the open measurement circuit. 64 BG 805 196 BE / B (2004-08) TPG262.oi Test sequence e.g.: Ö Gauge identification voltage CH1 Ö No gauge connected A/D converter test 3 Test of channel 3 of the analog/digital converter (with a reference voltage at the identification input of the sensor connector (→ 20)). If the signal input is open, the TPG 262 displays a default value that may easily fluctuate because of the high sensitivity of the open measurement circuit. Test sequence e.g.: Ö Gauge identification voltage CH2 Ö No gauge connected I/O test Test of the relays of the TPG 262. The program tests their switching function. Caution Caution: The relays switch irrespective of the pressure Starting a test program may cause unwanted effects in connected control systems. Disconnect all sensor cables and control system lines to ensure that no control commands or messages are triggered by mistake. BG 805 196 BE / B (2004-08) TPG262.oi 65 The relays switch on and off cyclically. The switching operations are indicated optically and can be heard. The contacts of switching functions 1 … 4 are connected to the relay connector (→ 22), the contacts of the error relay to the control connector (→ 21) on the rear of the housing. Check their function with an ohmmeter. Test sequence The test runs automatically one time: Ö All relays deactivated Ö Switching function relay 1 Ö Switching function relay 2 : Ö Switching function relay 4 Ö Gauge relay CH1 Ö Gauge relay CH2 Ö Error relay 66 BG 805 196 BE / B (2004-08) TPG262.oi RS232C test Test of the RS232C interface. The TPG 262 repeats each sign transmitted by the communicating HOST. The data transferred from/to the TPG 262 can be displayed by the computer only (→ 68). Test sequence The test runs automatically. BG 805 196 BE / B (2004-08) TPG262.oi 67 5 Communication (Serial Interface) 5.1 RS232C Interface The serial interface is used for communication between the TPG 26x 1) and a computer. A terminal can be connected for test purposes. When the TPG 26x is put into operation, it starts transmitting measured values in intervals of 1 s. As soon as the first character is transferred to the TPG 26x, the automatic transmission of measured values stops. After the necessary inquiries or parameter modifications have been made, the transmission of measured values can be started again with the COM command (→ 75). Connection diagram connection cable 5.1.1 Data Transmission Data format Pin assignment of the 9-pole D-Sub connector and RS232 interface cable → 23. The data transmission is bi-directional, i.e. data and control commands can be transmitted in either direction. 1 start bit 8 data bits No parity bit 1 stop bit No hardware handshake 1) 68 Communication structure and procedures are identical for both controllers TPG 261 and TPG 262. Therefore the term TPG 26x is used in this chapter. BG 805 196 BE / B (2004-08) TPG262.oi Definitions The following abbreviations and symbols are used: Symbol HOST [...] ASCII Meaning Computer or terminal Optional elements American Standard Code for Information Interchange Dec. Hex.END OF TEXT (CTRL C) 3 03 Reset the interface CARRIAGE RETURN 13 0D Go to beginning of line LINE FEED 10 0A Advance by one line Request for data transmission ACKNOWLEDGE 6 06 Positive report signal NEGATIVE ACKNOWLEDGE 21 15 Negative report signal "Transmit": "Receive": Flow Control BG 805 196 BE / B (2004-08) TPG262.oi Data transfer from HOST to TPG 26x Data transfer from TPG 26x to HOST After each ASCII string, the HOST must wait for a report signal ( or ). The input buffer of the HOST must have a capacity of at least 32 bytes. 69 5.1.2 Communication Protocol Transmission format Messages are transmitted to the TPG 26x as ASCII strings in the form of mnemonic operating codes and parameters. All mnemonics comprise three ASCII characters. Spaces are ignored. (CTRL C) clears the input buffer in the TPG 26x. Transmission protocol HOST TPG 26x Mnemonics [and parameters] > [ ] > < Reception format When requested with a mnemonic instruction, the TPG 26x transmits the measurement data or parameters as ASCII strings to the HOST. Explanation Receives message with "end of message" Positive acknowledgment of a received message must be transmitted to request the transmission of an ASCII string. Additional strings, according to the last selected mnemonic, are read out by repetitive transmission of . If is received without a valid request, the ERROR word is transmitted. 70 BG 805 196 BE / B (2004-08) TPG262.oi Reception protocol HOST TPG 26x Mnemonics [and parameters] > [ ] > < < < < < Explanation Receives message with "end of message" Positive acknowledgment of a received message > Requests to transmit data Measurement values Transmits data with or parameters "end of message" : : > Requests to transmit data Measurement values Transmits data with or parameters "end of message" Error processing The strings received are verified in the TPG 26x. If an error is detected, a negative acknowledgment is output. Error recognition protocol HOST Mnemonics [and parameters] [ ] TPG 26x Explanation Receives message > with "end of mes> sage" ***** Transmission or programming error ***** < Negative acknowledgment of a received message Mnemonics Receives message [and parameters] > with "end of mes [ ] > sage" < Positive acknowledgment of a received message BG 805 196 BE / B (2004-08) TPG262.oi 71 5.2 Mnemonics → ADC BAU COM CAL DCD DGS DIC DIS EEP EPR ERR FIL FSR IOT LOC OFC OFD PNR PR1 PR2 PRX PUC RAM RES RST SAV SC1 SC2 SCT SEN SP1 SP2 SP3 SP4 SPS TID TKB TLC UNI WDT 72 A/D converter test Baud rate (transmission rate) Continuous mode Calibration factor Display control digits (display resolution) Degas Display control (display changeover) Display test EEPROM test EPROM test Error status Filter time constant (measurement value filter) Full scale range (measurement range of linear gauges) I/O test Keylock Offset correction (linear gauges) Offset display (linear gauges) Program number (firmware version) Pressure measurement (measurement data) gauge 1 Pressure measurement (measurement data) gauge 2 Pressure measurement (measurement data) gauge 1 and 2 Penning underrange control (underrange control) RAM test Reset RS232 test Save parameters to EEPROM Sensor control 1 (gauge control 1) Sensor control 2 (gauge control 2) Sensor channel change (measurement channel change) Sensors on/off Setpoint 1 (switching function 1) Setpoint 2 (switching function 2) Setpoint 3 (switching function 3) Setpoint 4 (switching function 4) Setpoint status (switching function status) Transmitter identification (gauge identification) Keyboard test (operator key test) Torr lock Pressure unit Watchdog control BG 805 196 BE / B 89 85 75 81 85 83 86 88 88 88 77 80 81 90 87 82 82 86 73 73 74 83 88 78 91 86 84 84 77 76 79 79 79 79 80 76 91 87 85 87 (2004-08) TPG262.oi 5.2.1 Measurement Mode Measurement data gauge 1 or 2 Transmit: PRx [ ] Measurement value x = 1 –> Gauge 1 2 –> Gauge 2 Receive: Transmit: Receive: x,sx.xxxxEsxx 1) Measurement value [in current pressure unit] Status, x = 0 –> Measurement data okay 1 –> Underrange 2 –> Overrange 3 –> Sensor error 4 –> Sensor off (IKR, PKR, IMR, PBR) 5 –> No sensor (output: 5,2.0000E-2 [mbar]) 6 –> Identification error 1) Values always in exponential format. For logarithmic gauges, the 3rd and 4th decimal are always 0. BG 805 196 BE / B (2004-08) TPG262.oi 73 Measurement data gauges 1 and 2 Transmit: PRX [ ] Receive: Transmit: Receive: x,sx.xxxxEsxx,y,sy.yyyyEsyy Measurement 1) value gauge 2 [in current pressure unit] Status gauge 2 Measurement value gauge 1 [in current pressure unit] 1) Status gauge 1, x = 0 –> Measurement data okay 1 –> Underrange 2 –> Overrange 3 –> Sensor error 4 –> Sensor off (IKR, PKR, IMR, PBR) 5 –> No sensor (output: 5,2.0000E-2 [mbar]) 6 –> Identification error 1) Values always in exponential format. For logarithmic gauges, the 3rd and 4th decimal are always 0. 74 BG 805 196 BE / B (2004-08) TPG262.oi Continuous output of measurement values (RS232) Transmit: COM [,x] [ ] Mode x = 0 –> 100 ms 1 –> 1 s (default) 2 –> 1 min. Receive: is immediately followed by the continuous output of the measurement value in the desired interval. Receive: x,sx.xxxxEsxx,y,sy.yyyyEsyy Measurement 1) value gauge 2 [in current pressure unit] Status gauge 2 Measurement value gauge 1 [in current pressure unit] 1) Status gauge 1, x = 0 –> Measurement data okay 1 –> Underrange 2 –> Overrange 3 –> Sensor error 4 –> Sensor off (IKR, PKR, IMR, PBR) 5 –> No sensor (output: 5,2.0000E-2 [mbar]) 6 –> Identification error 1) Values always in exponential format. For logarithmic gauges, the 3rd and 4th decimal are always 0. BG 805 196 BE / B (2004-08) TPG262.oi 75 Turning a gauge on/off Transmit: SEN [,x,x] [ ] Gauge 2, x = 0 –> No status change 1 –> Turn gauge off 2 –> Turn gauge on Gauge 1 Receive: Transmit: Receive: x,x Status gauge 2, x = 0 –> Gauge cannot be turned on/off 1 –> Gauge turned off 2 –> Gauge turned on Status gauge 1 Gauge identification Transmit: TID [ ] Receive: Transmit: Receive: x,x Identification gauge 2, x = TPR (Pirani Gauge or 1) Pirani Capacitive gauge ) -9 IKR9 (Cold Cathode Gauge 10 ) -11 IKR11 (Cold Cathode Gauge 10 ) PKR (FullRange CC Gauge) PBR (FullRange BA Gauge) IMR (Pirani / High Pressure Gauge) CMR (Linear gauge) noSEn (no SEnsor) noid (no identifier) Identification gauge 1 1) TPR and PCR have identical identifiers. There is no distinction made in communication and in data evaluation, since pressure ranges of these gauges are approximately the same. 76 BG 805 196 BE / B (2004-08) TPG262.oi Measurement channel change Transmit: SCT [,x] [ ] Display channel, x = 0 –> Gauge 1 1 –> Gauge 2 Receive: Transmit: Receive: x Display channel Error status Transmit: ERR [ ] Receive: Transmit: Receive: xxxx xxxx = 0000 –> No error 1000 –> Error 0100 –> NO HWR 0010 –> PAR 0001 –> SYN Controller error (See display on front panel) No hardware Inadmissible parameter Syntax error The ERROR word is cancelled when read out. If the error persists, it is immediately set again. BG 805 196 BE / B (2004-08) TPG262.oi 77 Reset Transmit: RES [,x] [ ] x = 1 –> Cancels currently active error and returns to measurement mode Receive: Transmit: Receive: [x]x,[x]x,... List of all present error messages, xx = 0 –> No error 1 –> Watchdog has responded 2 –> Task fail error 3 –> EPROM error 4 –> RAM error 5 –> EEPROM error 6 –> DISPLAY error 7 –> A/D converter error 9 –> Gauge 1 error (e.g. filament rupture, no supply) 10 –> Gauge 1 identification error 11 –> Gauge 2 error (e.g. filament rupture, no supply) 12 –> Gauge 2 identification error 78 BG 805 196 BE / B (2004-08) TPG262.oi 5.2.2 Parameter Mode 5.2.2.1 Switching Function Parameters Threshold value setting, allocation Transmit: SPx [,y,x.xxxxEsxx,x.xxxxEsxx] [ ] Upper threshold [in current pressure unit] (default = depending on gauge) 1) 1) Lower threshold [in current pressure unit] (default = depending on gauge) Switching function assignment, y = 0 –> Meas. channel 1 1 –> Meas. channel 2 1 –> Switching function 1 2 –> Switching function 2 3 –> Switching function 3 4 –> Switching function 4 1) Values can be entered in any format. They are internally converted into the floating point format. Receive: Transmit: Receive: y,x.xxxxEsxx,x.xxxxEsxx Upper threshold [in current pressure unit] Lower threshold [in current pressure unit] Switching function assignment BG 805 196 BE / B (2004-08) TPG262.oi 79 Switching function status Transmit: SPS [ ] Receive: Transmit: Receive: x,x,x,x 1) Status switching function 4 1) Status switching function 3 1) Status switching function 2 1) Status switching function 1 1) x= 0 –> off 1 –> on 5.2.2.2 Gauge Parameters Measurement value filter Transmit: FIL [,x,x] [ ] Gauge 2 x = 0 –> fast 1 –> medium (default) 2 –> slow Gauge 1 Receive: Transmit: Receive: x,x Filter time constant gauge 2 Filter time constant gauge 1 80 BG 805 196 BE / B (2004-08) TPG262.oi Calibration factor Transmit: CAL [,x.xxx,x.xxx] [ ] ( ) Gauge 2 log. 0.100 ... 9.990 (default = 1.000) lin. 0.500 ... 2.000 (default = 1.000) Gauge 1 Receive: Transmit: Receive: x.xxx,x.xxx Calibration factor gauge 2 Calibration factor gauge 1 Measurement range (F.S.) of linear gauges The full scale value of the measurement range (Full Scale) of linear gauges has to be defined by the user; the full scale value of logarithmic gauges is automatically recognized. Transmit: FSR [,x,x] [ ] Gauge 2, x = 0 –> 0.01 mbar 1 –> 0.1 mbar 2 –> 1 mbar 3 –> 10 mbar 4 –> 100 mbar 5 –> 1000 mbar (default) 6 –> 2 bar 7 –> 5 bar 8 –> 10 bar 9 –> 50 bar Gauge 1 Receive: Transmit: Receive: x,x Measurement range gauge 2 Measurement range gauge 1 BG 805 196 BE / B (2004-08) TPG262.oi 81 Offset correction (linear gauges) Transmit: OFC [,x,x] [ ] ( ) Gauge 2, x = 0 –> off (default) 1 –> on 2 –> auto (offset measurement) Gauge 1 Receive: Transmit: Receive: x,x Gauge 2 Gauge 1 Offset display (linear gauges) Transmit: OFD [,sx.xxxxEsxx,sx.xxxxEsxx] [ ] 1) Gauge 2 Offset [in current pressure unit] (default = 0.0000) Gauge 1 1) Values can be entered in any format. They areinternally converted into the floating point format. Receive: Transmit: Receive: sx.xxxxEsxx,sx.xxxxEsxx Gauge 2 Gauge 1 82 BG 805 196 BE / B (2004-08) TPG262.oi Underrange control Transmit: PUC [,x,x] [ ] Gauge 2, x = 0 –> off (default) 1 –> on Gauge 1 Receive: Transmit: Receive: x,x Gauge 2 Gauge 1 Degas Transmit: DGS [,x,x] [ ] ( .) Gauge 2, x = 0 –> Degas off (default) 1 –> Degas on (3 min.) Gauge 1 Receive: Transmit: Receive: x,x Degas status gauge 2 Degas status gauge 1 BG 805 196 BE / B (2004-08) TPG262.oi 83 5.2.2.3 Gauge Control Gauge control Transmit: SCx [,x,y,x.xxEsxx,y.yyEsyy] [ ] OFF threshold ON threshold Controlling source for gauge deactivation, x = 0 –> no control 1 –> automatic deactivation 2 –> manual deactivation (default) 3 –> external deactivation 4 –> self control Controlling source for gauge activation, x = 0 –> no control 1 –> automatic activation 2 –> manual activation (default) 3 –> external activation 4 –> hot start Controlled gauge, x = 1 –> Gauge 1 2 –> Gauge 2 Receive: Transmit: Receive: x,y,x.xxEsxx,y.yyEsyy OFF threshold ON threshold Controlling source for deactivating the gauge Controlling source for activating the gauge 84 BG 805 196 BE / B (2004-08) TPG262.oi 5.2.2.4 General Parameters Pressure unit Transmit: UNI [,x] [ ] Pressure unit, x = 0 –> mbar/bar (default) 1 –> Torr 2 –> Pascal Receive: Transmit: Receive: x Pressure unit Transmission rate Transmit: BAU [,x] [ ] Transmission rate, x = 0 –> 9600 baud (default) 1 –> 19200 baud 2 –> 38400 baud As soon as the new baud rate has been entered, the report signal is transmitted at the new transmission rate. Receive: Transmit: Receive: x Transmission rate Display resolution Transmit: DCD [,x] [ ] Resolution, x = 2 –> Display x.x (2 digits) (default) 3 –> Display x.xx (3 digits) Receive: Transmit: Receive: x Resolution BG 805 196 BE / B (2004-08) TPG262.oi 85 Save parameters to EEPROM Transmit: SAV [,x] [ ] x = 0 –> Save default parameters 1 –> Save user parameters Display changeover Receive: Transmit: DIC [,x] [ ] Measurement display behavior when a Pirani gauge or a Pirani Capacitance gauge is combined with a linear gauge with 1000 mbar F.S., x = 0 –>manual (default) 1 –>automatic Receive: Transmit: Receive: x Measurement display behavior 5.2.2.5 Test Parameters Firmware version (For service personnel) Transmit: PNR [ ] Receive: Transmit: Receive: 302-510-x -x = Modification index (-- = original version) Firmware number 86 BG 805 196 BE / B (2004-08) TPG262.oi Watchdog control Transmit: WDT [,x] [ ] x = 0 –> Manual error acknowledgement 1 –> Automatic error 1) acknowledgement (default) 1) If the watchdog has responded, the error is automatically acknowledged and cancelled after 2 s. Receive: Transmit: Receive: x Watchdog control Torr lock Transmit: TLC [,x] [ ] x = 0 –> off (default) 1 –> on Receive: Transmit: Receive: x Torr lock status Keylock Transmit: LOC [,x] [ ] x = 0 –> off (default) 1 –> on Receive: Transmit: