Beijing GODA Instruments GDRD5Y6YD Pulse Radar Level Instrument User Manual FCC for GDRD53

Beijing GODA Instruments Co., LTD. Pulse Radar Level Instrument FCC for GDRD53

Users Manual

Beijing GODA Instruments Co.,Ltd.北京古大仪表有限公司Level Measurement Expert6GHz Pulse Radar Level Instrument
Table of Contents1 For your safety...... ............... ....12 Measurement Principle ................ ...23 Mounting Requirement................. ...34 Electrical Connection.................. ....96 Adjustment Instructions................. . .119 Selection & Ordering Information............ 14
11.For your safetyAll operations described in this operating instructions manual must be carried out ouly by trainedspecialist personnel authorised by the plant operator.During work on and with the device the required personal protective equipment must always be worn. Operational reliability is ensured only if the instrument is properly used according to the specifications in the operating instructions manual as well as possible supplementary instructions. This device complied with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)this device may not cause harmful interference, and(2)this device must accept any interference received, including interference that may cause undesired operation.Changes or modifications not expressly approved by the manufacturer could void the user's authority to operate the equipment.Authorised personalAppropriate useFCC CertificationWarning: User must keep a safety distance of at least 20cm from the antenna.NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interferenceto radio communications. Operation of this equipment in a residential area is likely to causeharmful interference in which case the user will be required to correct the interference at his ownexpense.
2.Measurement PrinciplePrincipleFeaturesThe extremely narrow microwave pulse emitted by the antenna on radar level instrument can travel at the speed of light and part of its energy, which is reflected off the surface of target medium, is received by the very same antenna. The time lapse between pulseemission and reception by the antenna is proportional to the distance between the surface of target medium and the reference point on antenna. However, due to the fact that theelectromagnetic wave is transmitted at extremely high speed, which leads to the tiny time lapse (nanosecond level) and makes it difficult to be identified,GDRD5X series of radar level instrument have adopted a special demodulation technology, enabling itself to detectthe time lapse between pulse emission and reception correctly, and eventually generate accurate measurement result.Equipped with advanced microprocessor and unique EchoDiscovery echo processing technology, the radar level instrument can be used under various hazardous process conditions.The false echo storage function enables the instrument to detect the true echo with thepresence of multiple false echoes and eventually generate accurate measurement results.There are multiple options available in choosing various process connection and detectioncomponent, which enables GDRD5X series radar level instrument to be applied in a broadarray of hazardous applications, such as high temperature, high pressure, small dielectric constant and so on.The guided wave radar level instrument, with pulses as its working tool and extremely lowemission power, can be mounted on various metal or nonmetal vessels, harmless towards the environment and human beings.2
There is a certain existing beam angle while the antenna transmitting microwave pulses. There should beno barriersbetween the lower edge of antenna and surface of measuredmedium. Therefore it is highly recommended to avoidfacilities inside vessels, such asladders, limit switches, heating spirals, struts and etc, during the mounting process.“False echo learning” must be carried out during the installation in this case.Furthermore, microwave beams mustNOT intersect the filling streams. Be cautions duringthe installation: the highest level of target medium must NOT enter into blanking zone; the instrument must keep certain distance to vessel walls; every possible measure needs to be taken to position the instrument so that the direction of antenna emission is perpendicular to the surface of measured medium. The installation of instruments in xplosion proof area must abide by relevant local or federal safety regulations. Aluminum housing should be used for intrinsically safe explosion proof version, which is also applicable in explosion proof areas. The instrument must be connected with ground in this case.Note：The highest level of measured medium must not enter into vlanking zone while radar level measurement instrument is in operation.1.Reference Plane2.Center of Vessel or Symmetrical Axis Minium distance of 500mm between instrument and vesselwall during installation >500mm1233.Mounting RequirementsBasic RequirementsThe reference plane is the thread or flange surface 100% 0%111111112222333334IllustrationsMounting Position1. Blanking Zone(menu1.9)2. Empty(menu1.8)3. Max. Adjustment(menu1.2)4. Min. Adjustment(menu1.1)6GHz Pulse Radar Level Instrument
The best mounting position for a conical vessel with flat top is the center of its top, as the effective measurement can reach the bottom of vessel.In order to avoid dampness under outdoor or humid indoor conditions or for those instruments mountedon cooling/heating vessels, sealrings used on cables should be screwed tight, plus the cable mustbe bended downward outside cable entry, indicated on the diagram below>500mm12Damp-proof41.Reference Plane2.Center of Vessel or Symmetrical Axis
SocketThe transducer end must at least protrude 10mm out of socket.Horn AntennaYou are advused to use antenna extension if the antenna is shorter than socket.The working part of antenna ,ie. the cone-shaped body of antenna mustbe fully exposed from the socekt. In orderto meet the application requirementof various sockets, different radar level instrumentsof various sockets, different radar level instruments of variable length are available forcustomers to choose from(see Chapter 6 Dimensional Drawings).Rod Antenna>10mmAntenna ExtensionAntenna Extension56GHz Pulse Radar Level Instrument>20mm
121.Wrong: Mount the instrument in/above filling stream, which results in the measurement of filling stream not the target medium.2.Correct:1231.Wrong: Fail to turn the antenna prependicular to the surface of target medium.2.Wrong:Instruments are mounted in the center of concave or arched vassel tops, which results in multiple echoes.3.CorrectRights and Wrongs in MountingIf there are agitators in vessels, instrument must be mounted as far away from agitators as possible. Once installation completed, a"false echo learning" should be carried out while agitators inmotion to eliminate negativeinfluence caused by false echo of agitators. You are advised to opt for installation with standpipe if foam or wave is generated due to the action of agitators.Agitator6
AReflection board installationIf there are barriers in vessels， it isrequired to mount baffle-board, by doing this, the echo reflected by thebarrier will be reflected out. And “False Echo Storage” will be applied.7If there are agitators in vessels, instrument must be mounted as far away from agitators as possible. Once installation completed, a"false echo learning" should be carried out while agitators inmotion to eliminate negativeinfluence caused by false echo of agitators. You are advised to opt for installation with standpipe if foam or wave is generated due to the action of agitators.Agitator Pulse Radar Level Instrument
FoamDue to the action of filling, stirring or other processes inside vessels, dense foams are formed on the surface of some liquid medium, which could attenuate emitting signals considerably. You are advised to mount theinstrument inside a standpipe or opt for a guided wave radar level instrument if the generation of foam incursmeasurement errors.Vent hole of diameter 5-10mmInstallation with StandpipeBy using standpipe, the influence of foams can be reduced.If the measurement is undertaken by GDRD5X inside a metal standpipe,the minimum inner diameter of standpipe should be 50mm. Avoid large cracks or welding seam whenconnecting standpipe. False echostorage must be carried out as well in this case.Note: You must NOT mount instrument insidestandpipe while measuring adhesive medium.ma x.min.11111111Installation with a plastic standpipe can avoid the generation of multiplefalse echoes while the instrument being mounted on the center of vessel top. You are advised to use PP or PTFE if the measuredmedium is strong acidic or alkaline.6GHz Pulse Radar Level Instrument8
9Power supply and current signal are carried by the same two-wire connection cable.This equipment is not allowed to be connected to public utility power lines. See the Technical Specifications of this guide for detailed requirement on powersupply. A safety barrier should be placed between power supply and instrument for intrinsically safe version.See the Technical Specifications of this guide for detailed requirement on power supply.Earth-connected current output can be used for standard version of level instruments, while the explosion proof version must be operated with a floating current output. Bothinstruments and earth terminals should be connected with ground firmly and securely. Normally you can either choose to connect with the earth terminal on vessel or adjacentground in case of plastic vessels.Standard 2-wire cable with outside diameter of 5...9mm, which assures the seal effect of cable entry, can be used as feeder cable. You are recommended to use screened The two ends of shielded cable must be connected with earth terminal. The shieldedcable must be connected with inner earth terminal directly inside the transducer, while the outside earth terminal on housing must be connected with ground. In the event of earth-connected current, the shielding side of shielded cable must be connected to ground potential via a ceramic capacitor (e.g. : 1μF 1500V) in order to dampen the lowfrequency grounding current and avoid the disturbance caused by high frequency signals 5 Electrical ConnectionPower SupplyGeneral Introduction20mA/HART(2-Wire)Cable ConnectionShielding & Grounding2-wireWiring Diagram2-wire wiring used for HART1）Power Supply and Signal Output + -1 Pulse Radar Level Instrument
653214(4～20 ) m A I N ( 4～20)mA OU T 24V OUT 2 4 V IN FBS-2COM W AY G O D Awar e(4～20)mA653214Explosion Proof ConnectionThis product is an intrinsic safety explosion proof version (Exia ⅡC T6 Ga) with stainless steel housing andplastic-encapsulated internal structure aimed to prevent sparks resulted from transducer and circuit malfunction from leaking out. It is applicable for the non-contact continuous level measurement of flammable medium under the level of explosion proof inferior to Exia ⅡC T6 Ga. You are required to use series (intrinsic safety explosionproof: [Exia] ⅡC，voltage of power supply: 24V DC±10%，short-circuit current: 114mA，operating current: 4...20mA) of safety barriers, which are supplementary to this product, for the power supply of this product.All connection cables must be screened with max. length of 500m. Stray capacitor≤0.1μF/Km,stray inductance≤1mH/Km. The level measurement instrument must be connected to ground potential and unapproved supplementary devices are not allowed to use.Explosion Proof Zone None-Explosion-Proof ZoneAdjust with GODAwarechoose either one Pulse Radar Level Instrument10
Display/Adjustment Module120. 0 0010203040506070809010 011 012 0dB2. 0 0 3. 0 0 4. 0 0 5. 001 LCD 2 Adjustment Keypad12[ ]Keypad-Enter programming mode;-Confirm programming options;-Confirm modifications to parameters. OK[ ]Keypad-Choose programming options;-Choose the digit of parameters to edit;-Display the contents of parameters.[ ]Keypad-Modify parameter values.[ ]Keypad-Programming mode exit;-Return to higher menu level. Shortcut[ ]Display Echo waveKBKB6 Adjustment InstructionsAdjustment MethodsThree adjustment methods available for GDRD series :1.Display/Adjustment Module2.Adjustment software GODAware3.HART handheld programmerViewPoint is a pluggable display/adjustment module. The adjustment can be done through operating with four buttons on ViewPoint. Optional menu operation languages are available for selection. ViewPoint is only used for display after adjustment in that the measurement results can be seen clearly through the glass window.11
Connect with another unit throuth HART.1 RS232 Connect Cable/USB port2 GDRD series3 HATR pont adapter used on COMWAY convertor4 250 ohm Resistance5 COMWAY Convertor1 RS232 Connect Cable/USB port2 GDRD series23 I C adapter pont used on MOMWAY convertor4 COMWAY Convertor3421+ - DCCOMWAYGODAware15234+ - DCCOMWAYGODAwareChoost Either One2Connect with another unit throuth I C .GODAware Pulse Radar Level Instrument12
HART Handheld ProgrammerAdjust GDRD series with HART Handheld Programmer1 HART Handheld Programmer2 GDRD series3 250 ohm Resistance213+ - DCChoost Either One13
GDRD53 (a)Explosion Proof Approval P Standard　 I Intrinsic Safety（Exia IIC T6 Ga） (b)Shape of Antenna/Material K Horn Φ100mm Stainless Steel/Internal PFA coating L Horn Φ150mm Stainless Steel/Internal PFA coating (c)Antenna Extension A No B 200mm C 500mm D 1000mm E 2000mm X Special Design (d)Process Connection/Material FA Flange DN50 PN1.6 Stainless Steel316L(GB/T9119-2000) FB Flange D80 PN1.6 Stainless Steel316L(GB/T9119-2000) FC Flange DN100 PN1.6 Stainless Steel316L(GB/T9119-2000) FD Flange DN150 PN1.6 Stainless Steel316L(GB/T9119-2000) FE Flange Dn200 PN1.6 Stainless Steel316L(GB/T9119-2000) YP Special Design (e)Electronic B (4～20)mA/HART 2-Wire (f)Housing A: Aluminium G:Stainless Steel 9 Selection & Ordering Information (g)Cable Entry　　　　　　　　　　 M M20x1.5　　　　　　　　　　 N ½NPT　　　　　　　　　　　　 (h)Display/Programming　　　　　　　　　　　　 A Yes X No (i)Huff A Yes X No 14
Beijing GODA Instruments Co.,Ltd.Edition: GD/201412 Sales Dept Of Beijing GODA Instruments Co., Ltd. Add: Room1303, Block D, Ocean International Center, No 62 Middle Of east 4th ring, Chaoyang Dist., Beijing,100025, China（010）59648788（ ）（010）59648789100025Tel: Ext.8Fax:PC:

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