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13

12.2

95-8616

CALIBRATION PROCEDURE

NOTE

When attaching or removing the calibration cup, 
push or pull the cup with a slight 

clockwise

 twist.  

Turning counterclockwise can cause the filter 
assembly on the GT3000 to loosen. If the filter 
assembly is inadvertently loosened, tighten it by 
hand (no tools required).

Toxic and Hydrogen Sensors

1.  Clean air must be present at the GT3000 sensor 

module prior to initiating calibration. The use of 

bottled air is recommended.  

2. Initiate calibration by momentarily holding the 

calibration magnet against the designated location 

on the sensor module (see Figure 13) until the 

green LED turns off and the yellow LED turns on 

steady (approximately one second). Remove 

the magnet when the green LED turns off. The 

detector immediately begins taking zero readings.  

Calibration can also be initiated via HART interface 

(see Appendix G) or the UD10 (see manual number 

95-8618).

3.  When the zero calibration is complete, the yellow 

LED changes from steady to blinking. Apply the 

calibration gas to the sensor.  

4.  When the yellow LED turns off, remove the calibration 

gas. The gas level at the sensor gradually returns to 

zero. The green LED turns on steady to indicate that 

the device has returned to normal operation, using 

the new calibration data.

NOTE

The calibration procedure must be completed 
within a ten minute period.  If the calibration is not 
completed, a calibration fault will be generated 
and the transmitter will continue to use the 
previous calibration data.  

NOTE

To ensure reliable detection performance, 
calibration should be performed at regularly 
scheduled intervals. Various factors affect the 
time interval between periodic calibrations 
(typically 30, 60, or 90 day intervals, depending 
on the ambient conditions).

NOTE

Calibration of ammonia sensor is recommended 
any time the sensor has been exposed to 90 ppm 
ammonia.

Oxygen Sensor

1.  Using the magnet, activate the magnetic calibration 

switch on the GT3000. The green LED turns off and 

the yellow LED turns on steady.  

2. The device automatically performs the zero 

calibration.  

3.  When the yellow LED on the GT3000 flashes, the 

device automatically performs the span calculation.  

If using bottled 20.9% oxygen, apply immediately.

4.  After successful calibration, the yellow LED turns off 

and the green LED turns on steady to indicate that 

the device has returned to normal operation, using 

the new calibration data.  Remove calibration gas (if 

used).   

LED

PLACE MAGNET HERE

TO ACTIVATE INTERNAL

MAGNETIC SWITCH

B2452

Figure 13—Location of Magnetic Switch on GT3000 Detector

Summary of Contents for Det-Tronics GT3000 Series

Page 1: ...12 2 Rev 8 16 95 8616 Instructions Electrochemical Gas Detector GT3000 Series Includes Transmitter GTX and Sensor Module GTS...

Page 2: ...or Intrinsic Safety Wiring 8 Wiring Procedure 8 CALIBRATION 12 GT3000 Calibration 12 Calibration Procedure 13 MAINTENANCE 14 Routine Inspection 14 Sensor Module Replacement 14 DEVICE REPAIR AND RETURN...

Page 3: ...is proportional to the concentration of the target gas The GT3000 is compatible with FlexVu Model UD10 and UD20 Universal Display Units as well as other devices that are able to monitor a linear 4 20...

Page 4: ...l Display Unit a HART communication device or AMS software The time stamp on the logs will not be correct if the RTC in the transmitter is not set correctly HISTORY EVENT LOGS Both the transmitter and...

Page 5: ...2 LEDs The GT3000 has one green and one yellow LED See Figure 3 The LEDs are used to signal normal calibration and fault conditions See Table 2 NOTE The GT3000 does not have alarm setpoints and theref...

Page 6: ...itter has flying leads 20 long 600V insulation Colors Red V Black V Green earth ground Gauge 22 AWG red and black 16 AWG green WARM UP Warm up time can last up to 150 seconds OPERATING TEMPERATURE See...

Page 7: ...ield repairable components User performed service is limited to replacement of the gas sensor module CAUTION Hazardous location temperature limits exceed the product operational temperature limits If...

Page 8: ...interest is lighter than air place the sensor above the potential gas leak Place the sensor close to the floor for gases that are heavier than air Note that air currents may cause a gas that is slight...

Page 9: ...uctor shielded cable is required to prevent possible nuisance EMI RFI The maximum cable length between the GT3000 and the UD10 UD20 is 2000 ft WIRING POWER SUPPLY REQUIREMENTS Calculate the total gas...

Page 10: ...50 mm When located within an enclosure the conductors can be separated by a grounded metal or insulated partition Wires must be tied down to prevent loosening and or shorting Intrinsically safe wirin...

Page 11: ...d to Sensor Termination Box in Stand Alone Configuration Explosion Proof 24 VDC A2530 NOTE 1 GROUND THE SHIELD AT THE POWER SOURCE END ONLY NOTE 2 250 OHM RESISTOR REQUIRED FOR HART MENU ACCESS NOTE 3...

Page 12: ...E POWER SOURCE END ONLY SEE NOTES 2 3 SEE NOTE 5 GT3000 GAS DETECTOR SHIELD SHIELD SENSOR LOOP POWER LOOP BLACK RED GREEN SEE NOTE 1 24 VDC UD20 DISPLAY UNIT D2408 J2 6 J2 5 J2 4 J2 3 J2 2 J2 1 J2 NOT...

Page 13: ...f voltage input card is used Sinking resistance at PLC must be 250 ohms minimum for HART communication P12 Figure 12 GT3000 Wired Directly to the UD10 Display Unit UD10 Wired to PLC with 4 20 mA Isola...

Page 14: ...of the progress The calibration can be aborted by activating the magnetic switch or with a command from the HART communication device in lieu of applying the calibration gas If the calibration proces...

Page 15: ...y to indicate that the device has returned to normal operation using the new calibration data NOTE The calibration procedure must be completed within a ten minute period If the calibration is not comp...

Page 16: ...s shown in Figure 15 Loosen these screws and remove the old sensor module Install the new sensor module onto the transmitter and tighten the screws To ensure proper moisture ingress protection and gro...

Page 17: ...0 20 ppm Hydrogen Sulfide H2S 0 50 ppm Hydrogen Sulfide H2S 0 100 ppm Oxygen O2 0 25 V V Carbon Monoxide CO 0 100 ppm Carbon Monoxide CO 0 500 ppm Ammonia NH3 0 100 or 0 500 ppm Sulfur Dioxide SO2 0 2...

Page 18: ...10P 0 10 PPM NH3 Ammonia 100P 0 100 PPM 500P 0 500 PPM H2 Hydrogen 1000P 0 1000 PPM O2 Oxygen 25V 0 25 by Vol CO Carbon Monoxide 100P 0 100 PPM 500P 0 500 PPM SO2 Sulfur Dioxide 20P 0 20 PPM 100P 0 10...

Page 19: ...SIZE N 3 4 NPT M Metric M25 TYPE OUTPUTS 26 4 20 mA HART 3 5 mA FAULT 29 4 20 mA HART 2 45 mA FAULT TYPE APPROVALS B INMETRO Brazil R Russia W FM CSA ATEX CE IECEx TYPE CLASSIFICATION Division Zone 4...

Page 20: ...connected directly to a junction box suitable for the area of installation to provide protection for the flying leads Intrinsically Safe Model IS Class I Div 1 Groups A B C D T4 Class I Zone 0 AEx ia...

Page 21: ...CO 010274 011 Gas Calibration Kit 250 ppm CO 010274 005 Gas Calibration Kit 50 ppm NH3 010274 006 Gas Calibration Kit 250 ppm NH3 010274 013 Gas Calibration Kit 10 ppm SO2 010274 014 Gas Calibration K...

Page 22: ...Gas Transmitter module shall be connected directly to a junction box suitable for the area of installation to provide protection for the flying leads Intrinsically Safe Model Class I Div 1 2 Groups A...

Page 23: ...cted directly to a junction box suitable for the area of installation to provide protection for the flying leads Intrinsically Safe Model 0539 FM APPROVED II 1 G Ex ia IIC T4 Ga IP66 FM08ATEX0045X NOT...

Page 24: ...cted directly to a junction box suitable for the area of installation to provide protection for the flying leads Intrinsically Safe Model Ex ia IIC T4 Ga IP66 IECEx FMG 08 0005X NOTE In order to maint...

Page 25: ...unction box suitable for the area of installation to provide protection for the flying leads NOTE Consideration must be given to overall Gas System Performance Requirements Intrinsically Safe Model UL...

Page 26: ...ATEX0009X GTX Ex d mb ia Issued by FM Approvals EN 60079 0 2012 A11 2013 EN 60079 1 2007 GTX Ex d mb ia only EN 60079 11 2012 EN 60079 18 2009 GTX Ex d mb ia only EN 60529 1991 A1 2000 EN 50104 2010 E...

Page 27: ...mukainen SV F rem let f r f rs kran ovan verensst mmer med den relevanta harmoniserade unionslagstiftningen ATEX Directive 2014 34 EU Certificate No FM08ATEX0045X GTS GTX Ex ia FM10ATEX0009X GTX Ex d...

Page 28: ...t vyhl senia je v zhode s pr slu n mi harmoniza n mi pr vnymi predpismi nie SL Predmet navedene izjave je v skladu z ustrezno zakonodajo Unije o harmonizaciji ATEX Directive 2014 34 EU Certificate No...

Page 29: ...tter code as indicated in the list below Code Language BG Bulgarian ES Spanish CS Czech DA Danish DE German ET Estonian EL Greek EN English FR French HR Croatian IT Italian LV Latvian LT Lithuanian HU...

Page 30: ...C 1 ppm Mo ISA 92 00 014 Hydrogen Sulfide H2S 0 100 PPM T20 6 Sec T50 8 Sec T90 15 Sec 2 ppm or 10 of Reading 40 C to 55 C 2 ppm Mo ISA 92 00 014 Ammonia NH3 0 100 PPM2 T50 24 Sec T90 65 Sec 4 ppm or...

Page 31: ...Cross Sensitivity of CO Sensor 0 100 ppm 0 500 ppm Gas Concentration Reading CO Hydrogen sulfide 15 ppm 45 ppm Sulfur dioxide 5 ppm 2 5 ppm Nitric oxide 35 ppm 10 ppm Chlorine 1 ppm 1 ppm Hydrogen 100...

Page 32: ...ENDIX H HART COMMUNICATION HART MENU STRUCTURE This section displays the menu tree for the GT3000 The menu tree shows the primary commands and options available when using menu selections of a HART ha...

Page 33: ...del xxxxx 3 Tag xxxxx 4 Descriptor xxxxx 5 Message xxxxx 6 Final asmbly num xxx 7 Dev id xxxxx Sensor History 1 Snsr Run Hours xxxx 2 Sensor Max Temp xxxx 3 Max Temp Time 4 Sensor Min Temp xxxx 5 Min...

Page 34: ...32 12 2 95 8616 APPENDIX I INTRINSIC SAFETY CONTROL DRAWING FM 009803 001 Rev D...

Page 35: ...33 12 2 95 8616 INTRINSIC SAFETY CONTROL DRAWING CSA 009803 002 Rev B...

Page 36: ...34 12 2 95 8616 EXPLOSION PROOF CONTROL DRAWING FM 012555 001 Rev A...

Page 37: ...Corporate Office 6901 West 110th Street Minneapolis MN 55438 USA www det tronics com All trademarks are the property of their respective owners 2017 Detector Electronics Corporation All rights reserv...

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