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[Figure 2. GTD-3000ExW Components]

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4. Name and Description of Each Part

4.1. Components

3.3. Electrical Specifications (Standard Type)

ITEMS

SPECIFICATION

Input Voltage(Standard)

※ Customer supplied PSU must meet

requirements IEC1010-1 and CE

Marking requirements.

Absolute min:

Nominal:

Absolute max:

Ripple maximum allowed:

18V
24V
31V

1V pk-pk

Wattage

Max. wattage:

Max. current:

5.5W @+24 VDC

280mA @+24 VDC

Analog output Current

0-20mA(500 ohms max load) 

All readings ± 0.2mA

Measured-value signal: 

4mA(Zero) to 20mA(Full Scale)

Fault:

0-100% LEL:

100-109%LEL: 

Over 110% LEL: 

Maintenance: 

0mA

4mA - 20mA

20mA - 21.4mA

22mA

3mA

Analog output current ripple & noise max

±20uA

Relay contact

Alarm1, Alarm2, Fault Relay

Rated 1.0 A @ 30VDC or 0.5 A @ 125 VAC

Wiring requirement

Power

CVVS or CVVSB with shield

Analog

CVVS or CVVSB with shield

RS485

STP(Shielded Twisted Pair)

Cable Connection Length

Analog

2500m

RS485

1000m

EMC Protection:

Complies with EN50270

NO

NAME

DESCRIPTIONS

1

Housing

Protects Sensor and PCB Board built in the Housing from external environmental change and shock.

2

Main PCB

It amplifies output signal from the sensor and converts and send it as DC 4~20 mA standard output. 

Isolation RS-485 network and alarm relay contact signals are outputted. Also, it sends data for the display.

3

Display PCB

It displays data received from main PCB on LCD or OLED and displays the current event status with 

power lamp, alarm lamp, trouble lamp.

4

Power/Signal Terminal

CN1 consists DC18-24 V power supply and DC 4~20 mA standard output connection terminal (VISO, 

+24V, mA,-, ETH).

5

Alarm signal Terminal

CN10 is alarm signal connection terminal, which outputs trouble, alarm1, alarm2 relay contacts.

3.4. Environmental Specifications

ITEMS

SPECIFICATION

Operation Temperature

Transmitter

-20 to 60 ℃

Sensor

Refer to Sensor Specification

Storage Temperature

Transmitter

-20 to 60 ℃

Sensor

Refer to Sensor Specification

Operation Humidity

Transmitter

5 to 99% RH (Non-condensing)

Sensor

Refer to Sensor Specification

Pressure Range

90 to 110KPa

Max. air velocity

6m/s

3. Specification

GTD-3000ExW

Instruction Manual

Summary of Contents for GTD-3000ExW

Page 1: ...arch laboratory 23 Gunpo Advance 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 ...

Page 2: ... you read it in detail and keep it well for reference when you have questions then it will give you much help The present product and the product manual can be changed without advance notice for performance improvement and use convenience of the product For accurate operation of Gas detector check up and calibrate for more than once in every 6 months See No 13 of KOSHA GUIDE P 135 2013 8 3 paragra...

Page 3: ...ta 33 11 3 Precautions during Installation 33 12 Revision History 35 1 Overview 6 2 Configuration 6 3 Specification 7 3 1 Basic Specifications 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...

Page 4: ...nsists of sensor that detects gas leak cable inlet 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 3 1 Basic Specifications ITEMS SPECIFICATION Measuring Type Diffusion Measuring Value Display LCD or OLED Display Green Red Yellow LED ...

Page 5: ...0 NO NAME DESCRIPTIONS 1 Housing Protects Sensor and PCB Board built in the Housing from external environmental change and shock 2 Main PCB It amplifies output signal from the sensor and converts and send it as DC 4 20 mA standard output Isolation RS 485 network and alarm relay contact signals are outputted Also it sends data for the display 3 Display PCB It displays data received from main PCB on...

Page 6: ...pe RS 485 and HART network modules to communicate with PC or PLC To run RS 485 network network address must be configured Default is 1 To run HART network Polling Address and Tag No etc must be configured 23 Relay Contact Type Selection Jumper It is constructed to select A or B contact When it is not in ENERGIZER MODE it operates in A contact Normal Open mode or B contact Normal Close mode when Ju...

Page 7: ... the bottom part of the detector body 5 2 Main PCB Configuration After detaching the display parts the Main PCB terminal layout appears as shown in the figure below Table 2 Main PCB Key Part Description No NAME DESCRIPTION 1 CN11 Power Output Signal Terminal 2 CN10 Alarm Fault Relay Terminal 3 CN9 RS485 Terminal 4 J1 4 20mA Source Sink Selection Jumper ON Source Type OFF Sink Type 5 CN4 Display LC...

Page 8: ... 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 Table 3 CN8 Terminal Detailed Description Figure 6 CN11 Terminal Configuration Use CVVS or CVVSB 2 0sq Shield Cable for terminal configuration To connect 4 Pin terminal from the existing old GTD 3000ExW model connect terminals in reference to pin 2 w...

Page 9: ...ration method at the Main PCB and operating setting is as follows TER NO PIN NO Terminal Name MODE Setting CN10 1 TRB OUT J2 A C Connection A Contact Normal Open J2 B C Connection B Contact Normal Close 2 TRB COM 3 AL1 OUT J3 A C Connection A Contact Normal Open J3 B C Connection B Contact Normal Close 4 AL1 COM 5 AL2 OUT J4 A C Connection A Contact Normal Open J4 B C Connection B Contact Normal C...

Page 10: ... is needed from the initial supply of operation power and it starts to operate normally after sufficient stabilization GTD 3000 Ver X XX When the power turns on model name is displayed on the first row and firmware version of the detector is displayed on the second row of LCD OLED SELFTEST 0179 Self test is performed for 3 min symbol in the second row shows the progress COMB 0 LEL It runs as below...

Page 11: ...99 00 CALIBRATION MODE CALIBRATION ZERO ZERO CALIBRATION NO YES NO ZERO GAS 0 ZERO PROCESSING SUCCESS FAIL CALIBRATION DATA 0 FAIL CALIBRATION SPAN SPAN CALIBRATION NO YES NO SPAN GAS VALUE 0 SPAN SET VALUE 50 FAIL 50 SPAN PROCESSING SUCCESS FAIL CALIBRATION DATA 0 ALARM PROGRAM MODE ALARM OPERATING AUTO MANUAL AUTO ALARM RELAY TYPE DE ENERGIZED ENERGIZED DE ENERGIZED FAULT RELAY TYPE DE ENERGIZED...

Page 12: ...ayed contact FUNC key to set the gas name and enter Program Mode GAS SEL COMB Mode that sets gas name name and contacting or key changes gas name When gas type is set to DEFIN built in gas names can be selected for use When it is set to USER the user shall set gas name using 6 character for use Characters allowed for use are number capital Alphabet space and period When position is moved by settin...

Page 13: ...Calibration Mode Contact FUNC key when CALIBRATION MODE is displayed to enter Calibration Mode Contact RESET key to return to Measuring Mode CALIBRATION SPAN Contact or key to achieve SPAN then contact FUNC key to enter Span Calibration mode SPAN CALIBRATION YES Contact or key to achieve YES then contact FUNC key to perform Span Calibration SPAN GAS VALUE O Using a calibration tool inject the stan...

Page 14: ...en a desired value is displayed contact FUNC key to set the dead band value and enter the next Alarm Program Mode ALARM1 TIME SET 1 SEC It is a mode that sets Alarm1 dwell time Contact or key to increase or decrease the value respectively Displayed number is in sec and in a range from 0 to 60 When a desired value is displayed contact FUNC key to set the alarm dwell time and enter the next Alarm Pr...

Page 15: ...ensor Module Change Sensor 3 Defective Transmitter Board ADC Change Transmitter Board 4 Defective Transmitter Board EEPROM 1 Perform Factory Initialization then correct parameter and re calibrate 2 Change sensor unit when the same problem occurs again 5 Defective MPU inside Transmitter Change Transmitter Main Board 6 Poor Sensor Output Status Change Sensor 7 Check Input Power Noise Check External ...

Page 16: ...n com 30_31 GTD 3000ExW Instruction Manual 10 Drawings and Dimensions 10 Drawings and Dimensions 10 2 Warning Light GTL 100 10 1 Standard Type Figure 14 GTL 100 Drawing Figure 13 GTD 3000ExW Standard Type Drawing ...

Page 17: ...ut are easier for leaked gas to stay the detector must be installed at the point 1 of the following Gas leak detector alarm installed outside a building shall be installed at points where gas is likely to stay in consideration to wind direction wind speed specific gravity of gas etc Gas leak detector alarm installed inside a building shall be installed near the floor when the specific gravity of g...

Page 18: ...used inlets must have safety certificates When connecting the equipment with cable screw thread must be tightened 5 threads or more Work in conditions satisfying other Standards for Selection Installation and Maintenance etc of Explosion proof Electric Machine and Equipment Wiring etc at Work Site VERSION CONTENTS DATE 0 1 Manual Initial Revision 2017 09 29 0 2 Correct typos and typographical erro...

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