Hp Fish Finder 5345A Users Manual Pdc35
5345A to the manual 2f2ae762-9d5c-4009-8ba0-b8a501d9c036
2015-02-09
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*TB 9-6625-1996-35 DEPARTMENT OF THE ARMY TECHNICAL BULLETIN CALIBRATION PROCEDURE FOR FREQUENCY COUNTER HEWLETT-PACKARD MODELS 5345A, 5345A/E28 AND 5345AOPT12 Headquarters, Department of the Army, Washington, DC 25 June 2001 Approved for public release; distribution is unlimited REPORTING OF ERRORS AND RECOMMENDED IMPROVEMENTS You can help improve this publication. If you find any mistakes or if you know of a way to improve the procedure, please let us know. Mail your letter or DA Form 2028 to: Commander, U. S. Army Aviation and Missile Command, ATTN: AMSAM-MMCMA-NP, Redstone Arsenal, AL 35898-5230. A reply will be furnished to you. You may also send in your comments electronically to our e-mail address: 2028@redstone.army.mil or FAX 256-842-6546/DSN 788-6546. SECTION I. IDENTIFICATION AND DESCRIPTION Test instrument identification............................ Forms, records, and reports ............................... Calibration description ....................................... II. Page 1 2 3 2 2 2 4 5 3 3 6 7 8 9 10 11 12 4 4 5 6 8 9 12 EQUIPMENT IDENTIFICATION Equipment required........................................... Accessories required .......................................... III. Paragraph CALIBRATION PROCESS Preliminary instructions .................................... Equipment setup................................................ Time base stability............................................. Sensitivity.......................................................... A12 Interface I/O................................................ Power supply ..................................................... Final procedure.................................................. __________ This bulletin supersedes TB 9-6625-1996-35, dated 13 November 1985. TB 9-6625-1996-35 SECTION I IDENTIFICATION AND DESCRIPTION 1. Test Instrument Identification. This bulletin provides instructions for the calibration of Frequency Counter, Hewlett-Packard, Models 5345A, 5345A/E28 and 5345AOPT12. The manufacturer's manuals were used as the prime data sources in compiling these instructions. The equipment being calibrated will be referred to as the TI (test instrument) throughout this bulletin. a. Model Variations. Differences among models are listed within the text. b. Time and Technique. The time required for this calibration is approximately 2 hours, using the dc and low frequency technique. 2. Forms, Records, and Reports. a. Forms, records and reports required for calibration personnel at all levels are prescribed by TB 750-25. b. Adjustments to be reported are designated (R) at the end of the sentence in which they appear. When adjustments are in tables, the (R) follows the designated adjustment. Report only those adjustments made and designated with (R). 3. Calibration Description. TI parameters and performance applications which pertain to this calibration are in table 1. Test instrument parameters Time base: Channel A and B sensitivity: A12 interface I/O 2 Table 1. Calibration Description Performance specifications Frequency: 10 MHz Aging rate (after 24 hour warmup): < 5 x 10-10 per day Line voltage variation (for 10% variation): <1 x 10-10 15 minutes after change Separate inputs: 25 mV rms: dc to 500 MHz (dc coupled) Common inputs: 50 mV rms: dc to 400 MHz (dc coupled) Range: -2 to +2 V dc Accuracy: ±0.0005 V dc TB 9-6625-1996-35 SECTION II EQUIPMENT REQUIREMENTS 4. Equipment Required. Table 2 identifies the specific equipment to be used in this calibration procedure. This equipment is issued with Secondary Transfer Calibration Standards Set AN/GSM-287 or AN/GSM-705. Alternate items may be used by the calibrating activity. The items selected must be verified to perform satisfactorily prior to use and must bear evidence of current calibration. The equipment must meet or exceed the minimum use specifications listed in table 2. The accuracies listed in table 2 provide a four-to-one ratio between the standard and TI. 5. Accessories Required. The accessories required for this calibration are common usage accessories, issued as indicated in paragraph 4 above, and are not listed in this calibration procedure. The following peculiar accessories are also required for this calibration: Adapter, SMC jack to BNC plug, Hewlett-Packard Model 1250-0831; Extender Boards, 10-terminal circuit board extenders (05345-60201 and 05345-60202); and Extender Cable, Hewlett-Packard Model 05345-60205. Table 2. Minimum Specifications of Equipment Required Manufacturer and model Common name Minimum use specifications (part number) AUTOTRANSFORMER Range: 105 to 125 V ac General Radio, Type Accuracy: ±1% W10MT3AS3 (7910809) or Ridge, Model 9020A (9020A) or Ridge, Model 9020F (9020F) FUNCTION GENERATOR Range: 10 Hz to 30 MHz (SG-1288/G) Amplitude: 0 to 40 mV rms Accuracy: ±3% (±1.5 dB) FREQUENCY DIFFERENCE Range: 10 MHz 3.7 to 12.4 GHz, HewlettMETER Resolution: 1 part in 10-10 per day Packard, Model 537A (7910718-2) MULTIMETER Range: -2 to +2 Vdc Hewlett-Packard, Model Accuracy: ±0.000125% 3458A (3458A) Range: 0 to ± 15 V dc Accuracy: ±0.03% OSCILLOSCOPE Bandwidth: 100 MHz Tektronix, Type 2465BOPT46 Sensitivity: 50 mV/div (2465BOPT46) Sweep rate: 10 ns/div Accuracy: ±3% SIGNAL GENERATOR Range: 30 to 500 MHz (SG-1207/U) Amplitude: 0 to 40 mV rms Accuracy: ±3% (±1.5 dB) TIME/FREQUENCY Frequency: 10 MHz Autek Systems Corp. Model WORKSTATION Accuracy: 1.25 parts in 10-10 per day 620 (MIS-38946) 3 TB 9-6625-1996-35 SECTION III CALIBRATION PROCESS 6. Preliminary Instructions a. The instruction outlined in paragraphs 6 and 7 are preparatory to the calibration process. Personnel should become familiar with the entire bulletin before beginning the calibration. b. Items of equipment used in this procedure are referenced within the text by common name as listed in table 2. c. Unless otherwise specified, verify the result of each test and, whenever the test requirement is not met, take corrective action before continuing with the calibration. Adjustments required to calibrate the TI are included in this procedure. Additional maintenance information is contained in the manufacturer's manual for this TI. d. Unless otherwise specified, all controls and control settings refer to the TI. 7. Equipment Setup WARNING HIGH VOLTAGE is used or exposed during the performance of this calibration. DEATH ON CONTACT may result if personnel fail to observe safety precautions. REDUCE OUTPUT(S) to minimum after each step within the performance check where applicable. a. Remove protective cover from TI only when necessary to make adjustments. Replace cover after completing the adjustments. b. Connect TI rear panel DIGITAL BUS 1.0 LOAD to controller GPIB0 (opt 12 only). c. Connect TI to autotransformer, connect autotransformer to a 115 V ac source and adjust for 115 V ac output. d. Set POWER switch to ON and allow at least 1 hour for stabilization. If TI has been disconnected from line power for more than 24 hours, allow at least 24 hours for warmup before beginning calibration. e. Set TI rear panel INT STD/EXT STD switch to INT STD and INTERNAL/EXT ARM/EXT GATE switch to INTERNAL (OPT 12 only). f. Position controls as listed in (1) through (10) below: (1) FUNCTION switch to FREQ A. (2) GATE TIME switch to 100 ms. (3) DISPLAY POSITION switch to AUTO. 4 TB 9-6625-1996-35 (4) (5) (6) (7) (8) (9) (10) SAMPLE RATE control fully ccw. CHANNEL A and B LEVEL controls to PRESET. CHANNEL A and B SLOPE switches to + (positive). CHANNEL A and B input impedance switches to 50 Ω. CHANNEL A and B ATTEN switches to X1. CHANNEL A and B AC-DC switches to DC. CHECK-COM A-SEP switch to SEP. 8. Time Base Stability a. Performance Check (1) Connect time/frequency workstation OUTPUT 1 MHz to frequency difference meter REF INPUT. (2) Connect TI FREQ STD OUTPUT 10 MHz (rear panel) to frequency difference meter SIG INPUT. (3) Adjust A18 FREQ ADJ (fig. 1) for minimum difference indication on frequency difference meter. Figure 1. Test instrument - top view. (4) Allow at least 24 hours for stabilization. Frequency difference meter indication will remain within 5 parts in 10-10. (5) Adjust autotransformer output to 105 V and allow 15 minutes for stabilization. Verify that TI oscillator drift is less than 1 part in 10-10. (6) Adjust autotransformer output to 125 V and allow 15 minutes for stabilization. Verify that TI oscillator drift is less than 1 part in 10-10 . (7) Adjust autotransformer output to 115 V. b. Adjustments. No further adjustments can be made. 5 TB 9-6625-1996-35 9. Sensitivity a. Performance Check (1) Set function generator as listed in (a) through (c) below: (a) (b) (b) (c) Output Type to UnBalanced 600 Function to Sine Wave. Frequency to 10 Hz. Amplitude to 1 mV. (2) Position TI controls as listed in (a) through (f) below: (a) (b) (c) (d) (e) (f) CHANNEL A LEVEL control to PRESET. CHANNEL A SLOPE switch to +. CHANNEL A 50Ω/1MΩ switch to 50Ω. CHANNEL A ATTEN X1/X10 switch to X1. CHANNEL A AC/DC switch to DC. CHECK/COM A/SEP switch to SEP. (3) Connect TI CHANNEL A input to function generator Function Output Unbalanced. (4) Press the function generator Enter key to enable the knob, and slowly rotate the function generator knob cw until TI display GATE light flashes and indication is stable at approximately 10 Hz. (5) Verify that the function generator indicates within limits specified in table 3. If not perform b below. 3. (6) Repeat technique of 1 through (5) above for remaining settings listed in table Test instrument input CHANNEL A CHANNEL A CHANNEL A CHANNEL A CHANNEL A1 CHANNEL A CHANNEL A CHANNEL A2 CHANNEL A CHANNEL A CHANNEL A CHANNEL A1 CHANNEL A CHANNEL A 1Substitute 2 6 CHECK-COM A-SEP switch setting SEP SEP SEP SEP SEP SEP SEP COM A COM A COM A COM A COM A COM A COM A Table 3. Sensitivity Function generator/signal generator frequency setting 10 Hz 10 kHz 100 kHz 1 MHz 10 MHz 100 MHz 500 MHz 10 Hz 10 kHz 100 kHz 1 MHz 10 MHz 100 MHz 400 MHz the signal generator for the function generator. Substitute the function generator for the signal generator. Function generator/signal generator indications (≤) 0.071 VPP 0.071 VPP 0.071 VPP 0.071 VPP 0.025 VRMS 0.025 VRMS 0.025 VRMS 0.141 VPP 0.141 VPP 0.141 VPP 0.141 VPP 0.050 VRMS 0.050 VRMS 0.050 VRMS TB 9-6625-1996-35 b. Adjustments (1) Substitute signal generator for function generator. (2) Connect signal generator RF OUTPUT connector to TI CHANNEL A input. (3) Connect signal generator EXT REF INPUT connector (rear panel) to TI FREQ STD OUTPUT 10 MHz connector (rear panel). (4) Extend front panel display assembly using extender cable 05345-60205. Disconnect CHAN A P1 caple from A9 J1 CHA (CHAN B P2 cable to A9 J2 CH B for CHANNEL B) and connect A9 J1 CH A (A9 J2 CH B for CHANNEL B) to oscilloscope CHANNEL A. (5) Position TI CHANNEL A and CHANNEL B controls as listed in (a) through (f) below: (a) (b) (c) (d) (e) (f) LEVEL control to PRESET. SLOPE switch to +. IMPEDANCE switch to 50Ω. ATTEN switch to X1. COUPLING switch to DC. CHECK-COM A-SEP switch to SEP. (6) Set signal generator frequency to 100 MHz and amplitude to 25 mV. (7) Position oscilloscope controls as listed in (a) through (f) below: (a) (b) (c) (d) (e) (f) CH1 VOLTS/DIV switch to .2 V. SEC/DIV switch to 20 ns. Pull delayed sweep switch and set to 10 ns. Set TRIGGER MODE pushbutton to AUTO. Set TRIGGER SOURCE pushbutton to VERT. Set TRIGGER COUPLING pushbutton to DC. (8) Adjust A3R41 (fig. 2)(A3R3 (fig. 2) for CHANNEL B) for a symmetrical waveform displayed on oscilloscope (R). Figure 2. A3 input attenuator (cmponent side). (9) While alternately setting CHANNEL A and CHANNEL B SLOPE switches to (+) and (-), observe that waveform maintains its symmetrical form. 7 TB 9-6625-1996-35 (10) Repeat (8) and (9) above as required to compensate for interaction. (11) Disconnect oscilloscope and signal generator from TI, reinstall TI from panel, and reconnect CHAN A P1 cable to A9 J1 CH A and CHAN B P2 cable to A9 J2 CH B. (12) Replace TI covers. 10. A12 Interface I/O a. Performance Check NOTE This option can only be calibrated in an automated mode. The TI must be connected to a controller with a properly configured GPIB IEEE interface card. NOTE If you are running this section with any controller and or software other than the fielded controller and the ICE environment, you will have to write the required mnemonics and take reading as per the software that you are using. (1) Connect TI and multimeter IEEE connectors to the controller GPIB0. (2) Assure TI address is set to 2 and multimeter address is set to 12. (3) Adjust TI CHANNEL A and CHANNEL B LEVEL controls to PRESET. (4) Remove screws holding TI top cover. Do not remove top cover until instructed. (5) Press the RESET key on the multimeter. (6) Output the following mnemonic string to the TI: I2B500A500I1. (7) Connect multimeter Input HI and LO to TI rear panel CHAN A TRIG LEVEL . (8) Output the following mnemonic string to the TI: B500A000I1. (9) Retrieve the reading from the multimeter. If the reading is not within limits listed in table 4, perform the listed adjustment. (10) Repeat technique of (7) through (9) above for remaining table 4 entries. Output mnemonic B500A000I1 8 Table 4. A12 interface I/O. Multimeter indication Connect multimeter to test instrument rear panel connector Min Max CHAN A TRIG LEVEL -2.0005 -1.9995 Perform adjust listed below b1 TB 9-6625-1996-35 A:00I1 B000I1 B:00I1 CHAN A TRIG LEVEL CHAN B TRIG LEVEL CHAN B TRIG LEVEL 1.9995 -2.0005 1.9995 2.0005 -1.9995 2.0005 b2 b3 b4 b. Adjustments NOTE Remove top cover to make adjustments, then replace top cover before repeating (a) above. (1) Adjust A12 pot A (R69) (fig. 3) for a –2.0000 ± 0.0005 V dc multimeter indication (R). (R). (2) Adjust A12 pot B (R74) (fig. 3) for a 2.0000 ± 0.0005 V dc multimeter indication (3) Adjust A12 pot D (R86) (fig. 3) for a –2.0000 ± 0.0005 V dc multimeter indication (R). (4) Adjust A12 pot C (R82) (fig. 3) for a –2.0000 ± 0.0005 V dc multimeter indication (R). Figure 3. I/O adjustment location. 11. Power Supply NOTE Do not perform power supply check if all other parameters are within tolerance. 9 TB 9-6625-1996-35 a. Performance Check (1) Mount circuit board A6 (fig. 1) on extender boards. (2) Connect multimeter between A6TP6 and + 5 V RET (fig. 4). If multimeter does not indicate between 4.98 and 5.02 V dc, perform b(1) below. (3) Connect multimeter between A6TP3 and - 5.2 V RET (fig. 4). If multimeter does not indicate between -5.18 and -5.22 V, perform b(2) below. (4) Replace circuit board A6 in TI and mount circuit board A7 (fig. 1) on extender boards. (5) Connect multimeter between A7TP1 (A7TP2; serial prefix 1428A and prior) and + 15 RET (fig. 4). If multimeter does not indicate between 14.98 and 15.02 V, perform b(3) below. (6) Connect multimeter between A7TP3 (A7TP7; serial prefix 1428A and prior) and -15 V RET (fig. 4). If multimeter does not indicate between -14.98 and 15.02 V, perform b(4) below. b. Adjustments (1) Adjust R19 (fig. 4) for 5.00 V indication on multimeter (R). (2) Adjust R29 (fig. 4) for 5.20 V indication on multimeter (R). (3) Adjust R16 (fig. 4) (R18 (fig. 4); serial prefix 1428A and prior) for +15.00 V indication on multimeter (R). (4) Adjust R17 (fig. 4) (R24 (fig. 4); serial prefix 1428A and prior) for -15.00 V indication on multimeter (R). 10 TB 9-6625-1996-35 R18 R24 +15V RET TP7 TP2 A7 CIRCUIT BOARD S/N 1428A -15V RET TP3 R19 R29 +5V RET TP6 -5.2 V RET A6 CIRCUIT BOARD R16 R17 TP3 TP1 -15V RET +15V RET A7 CIRCUIT BOARD S/N 1808 Figure 4. Power supply circuit boards. 11 TB 9-6625-1996-35 12. Final Procedure a. Deenergize and disconnect all equipment. b. Annotate and affix DA label/form in accordance with TB 750-25. 12 TB 9-6625-1996-35 By Order of the Secretary of the Army: 0116212 Distribution: To be distributed in accordance with IDN 342172, requirements for calibration procedure TB 9-6625-1996-35. PIN: 046669-000
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