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Gas & Flame 

Detection System

GTD-2000ExW

Instruction Manual

www.gastron.com

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Thank you very much for purchasing a product from GasTron Co. Ltd.

We, GasTron, specialize in Gas Detector & Gas Monitoring System and have been recognized by many 

customers for the best quality and ease of use. We always seek to help our customers to find the product 

they need and we continuously research to develop a gas detector that satisfies our customers. From now on, 

you can solve all problems related to gas detectors with a GasTron product. We, GasTron, will be responsible 

for your satisfaction.

This user manual describes operation and simple maintenance methods etc. for the gas detector. Please read 

carefully and store it in a safe place. Using it as a reference will help a lot when you have a question during 

use.

* KOSHA GUIDE : P-135/6-2018

  Calibration must be performed at a frequency requested by the manufacturer and shall be performed quarterly when    

  the calibration period is not specified.

The product and manual are subject to change without a notice for the product's functional improvement and ease of use.

■ For a precise operation of the gas detector, please perform an inspection and a calibration at 

  least once per 6 months.

  ( * In reference to KOSHA GUIDE: P-135/6-2018 / 7.2 In-house inspection, section 2)

■ For a precise operation of the gas detector, inspection and calibration using a reference gas before 

  measurement is recommended.

■ Failure to calibrate may result in malfunction of the equipment due to aging of the sensor.
■ Only an individual specialized in gas detector may disassemble the device.
■ Wire specification for the power cable must be decided in reference to the "Installation cable length" 

 section.

■ Please contact our company's technical support, e-mail, or website for inquiries related to 

  inspection and calibration of the gas detector.

Greetings

In case of a problem after purchasing the product,

please contact the address below.

· Address  : 23 Gunpo Advanced Industry 1-ro,

 

  Gunpo-si, Gyeonggi-do

· Tel  

: 031-490-0800

· Fax  

: 031-490-0801

· URL 

: www.gastron.com

· e-mail 

: [email protected]

Summary of Contents for GTD-2000Ex

Page 1: ...vance d Industry 1 ro Bugok dong Gunpo si Gyeonggi do Tel 82 31 490 0800 Fax 82 31 490 0801 Yeongnam business office Plant 55 Gonghangap gil 85beon gil Gangseogu Busan Metropolitan City Tel 51 973 8518 Fax 51 973 8519 E mail info gastron com www gastron com Read in detail for correct use ...

Page 2: ...y when the calibration period is not specified The product and manual are subject to change without a notice for the product s functional improvement and ease of use For a precise operation of the gas detector please perform an inspection and a calibration at least once per 6 months In reference to KOSHA GUIDE P 135 6 2018 7 2 In house inspection section 2 For a precise operation of the gas detect...

Page 3: ...vision History 32 1 Overview 6 2 Configuration 6 3 Specifications 7 3 1 Basic Specification 7 3 2 Mechanical Specifications 7 3 3 Electrical Specifications Standard Type 8 3 4 Environmental Specifications 8 4 Name and Description of Each part 9 4 1 Components 9 4 2 LAMP Function Description 11 5 Installation 12 5 1 Detachment of Housing Cover 12 5 2 Main PCB Configuration 13 5 2 1 Wiring for 4 20m...

Page 4: ... and high pressure explosion proof small warning light made of SUS materials It uses magnet bar outside the main body of detector enabling calibration from the outside of the detector thus maintenance is convenient 2 Configuration Figure 1 GTD 2000ExW Overview Gas Sensor Module GSA860EX Main Board Transmitter 24V DC 4 20mA Analog Signal Output Display Board User Interface Transmitter enclosure GDH...

Page 5: ... 3 MAIN PCB Amplifies fine outputs generated from Sensor Element to transmit a converted output in 4 20 mA DC standard It sends data to display part 4 Display PCB Displays data measurement sent from Main Terminal Transmitter PCB on LCD and displays power status with a power lamp 5 Power Signal Terminal CN8 consists DC18V 31 24 V power supply and DC 4 20 mA standard output connection terminal VISO ...

Page 6: ...ASE It is an explosion proof case made of explosion proof plastic and emits LED light externally through transparent window 18 CASE RING It serves as a cover to prevent deviation of front case 19 SEXANGLE BOLT It serves to prevent deviation after case ring assembly and is fixed by mood bolt 20 CASE BODY It is the main body that protects internal buzzer and other parts by body 21 BUZZER It receives...

Page 7: ...trical current is flowing Turn the slotted set screw M4 x 1ea fixing the cover part of main body 3 4 turns counter clockwise ccw using a hex wrench M2 then turn the cover of gas leak detector ccw to detach the cover When the cover is detached LCD appears After detaching the cover disassemble the display parts as below Push in left and right fixing rings located on front side of LCD at the same tim...

Page 8: ... CN8 Terminal Configuration Table 3 CN8 Terminal Detailed Description NO PCB SILK PIN NAME DESCRIPTION 4 20mA Source Drive J1 Jumper ON 4 20mA Sink Drive J1 Jumper OFF 1 VISO VIS N C 4 20mA Sink In 2 24V 24V POWER 3 mA mA 4 20mA Source Out 4 20mA Sink Out 4 GND GND POWER 5 ETH ET EARTH Use CVVS or CVVSB 2 0sq Shield Cable for terminal configuration To connect 4 Pin terminal from the existing old G...

Page 9: ...OP Maximum Power Loop Voltage Drop Power Supply voltage min operating voltage IMAX Max Current of GTD 2000ExW WIRER m The resistance of the wire ohms meter value available in wire manufacturer s specification data sheet Example of installation lengths using 24 V power supply and 16 AWG is as follows GTD 2000ExW minimum operating voltage 18 Vdc VMAXDROP 24 18 6V IMAX 0 2A 200mA 6 0 2 0 01318 2 2276...

Page 10: ...ously run until it is released using the reset key LEL ALARM1 LEL OVER When gas measurement larger than 10 of set high scale value OVER displays in 1 sec interval At this time 4 20 mA runs as 22 mA LEL UNDER When gas measurement smaller than 10 UNDER displays in 1 sec interval and 4 20 mA runs below 2 mA The following function only runs when UNDER is on FAULT1 SEN EMPT When trouble occurs in the d...

Page 11: ...hat sets gas name type and contacting or key changes gas type DEFIN USER DEFIN Is acronym for Define and is selected when using built in setting of gas name USER is selected when the user directly sets a gas name When a desired gas type is displayed contact FUNC key to set the gas name and enter Program Mode GAS SEL COMB Mode that sets gas name and contacting or key changes gas name When gas type ...

Page 12: ...ODE Contact or key to select Calibration Mode Contact FUNC key when CALIBRA MODE is displayed to enter Calibration Mode Contact RESET key to return to Measuring Mode CALIBRA SPAN Contact or key to achieve SPAN then contact FUNC key to enter Span Calibration Mode SPAN CAL NO Contact or key to achieve YES then contact FUNC key to perform Span Calibration SPAN GAS 50 Using a calibration tool inject t...

Page 13: ...aneous malfunction of detector due to external shock and noise other than from normal operation and time can be set in a range between 0 60 sec For Alarm1 dwell time setting press or key to increase or decrease in unit of 1 sec respectively When a desired Alarm 1 dwell time is displayed press FUNC KEY to set it and enter the next item Ex Alarm threshold value 20 LEL Delay time When it is at 5 sec ...

Page 14: ... ADC FAULT7 H W REV H W Version Error Defective MPU inside Transmitter FAULT8 SEN HUNT When there is repeated hunting error in gas measurement sensor output status may be poor or check for input power noise Table 5 Fault List 8 2 Recovery List Table 6 Recovery List NO CAUSE SOLUTION 1 Defective Sensor Module Connection 1 Check Sensor Connection and Connection status of the Connector 2 Change Senso...

Page 15: ... GTD 2000ExW Instruction Manual 9 2 Warning Light GTL 100 9 3 When Connecting Warning Light Figure 13 GTL 100 Drawing Figure 14 GTD 2000Tx Warning Light Connection Drawing 9 Drawings and Dimensions 9 Drawings and Dimensions ...

Page 16: ...th electrical barriers such as rain water etc It is recommended to be installed in areas that are easier to work in since regular maintenance is needed Avoid areas with vibration or shock since they can affect output values Sensor part must be installed towards the direction of gravity This equipment has explosion proof construction for internal pressure and belongs to GROUP II for gas and vapor i...

Page 17: ...www gastron com 32_33 GTD 2000ExW Instruction Manual VERSION CONTENTS DATE 0 1 Manual Initial Revision 2017 09 29 11 Revision History ...

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