GASTRON GTC-540 Manuel utilisateur

Design, Development, Manufacturing, Installation of Gas

Leak Alarm and Additional Service

Human Technology & Future

INSTRUCTION MANUAL

GTC-540

Revision: 2

GASTRON

Please read this manual carefully for the correct use of the equip ment

GTC-540 Instruction Manual

PAGE 2 of 30 Rev3, 2014.09.01

Thank you for buying the product of Gastron.

We, Gastron Co., Ltd., is the company specialized in gas detector and gas monitoring system

and have been recognized by the clients with the best quality and the convenience of use. We are

researching and making efforts continuously so that the clients can find the desired product close

to them and to develop the gas detector, which satisfies the clients. From now on, solve all the

problems related to the gas detector with the products of Gastron. We will satisfy you taking

responsibility.

In this manual, the installation, operation, simple maintenance methods, etc. for the control unit

of the GTC-540 Gas Leak Alarm. Please read carefully and keep well and it will provide great help

when you have any doubt during the operation.

When any abnormality may occur after buying our products, please contact to below address.

Address: Gastron Co., Ltd. 18-8 Dogeumdanji 1-gil (Palgok 2-dong),

Sangnok-gu, Ansan City, Gyeonggi-do

Tel : 031-490-0800

Fax : 031-490-0801

URL : www.gastron.com

e-mail : [email protected]

Caution

•For the accurate operation of the receiver unit, we recommend

to calibrate once within 6 months.

•If this equipment may be needed to disassembled, it should be

made by those who have professional skills for the receiver unit.

•For the contents related to the maintenance and the

calibration of the receiver unit, please contact with the

technical department or use e-mail or web site.

GTC-540 Instruction Manual

PAGE 3 of 30 Rev3, 2014.09.01

TABLE OF CONTENTS

1. Overview........................................................................................................................................................................... 4

2. Structure ........................................................................................................................................................................... 4

3. Specification.................................................................................................................................................................... 5

4. Name of Each Part and Major Function ............................................................................................................ 6

4.1. Component............................................................................................................................................................. 6

4.2. Detailed Explanation of Each Part.............................................................................................................. 7

5. Terminal Connection Diagram................................................................................................................................ 9

5.1. Power Supply Connection................................................................................................................................ 9

5.2. Reference Diagram for Signal I/O Terminal CN6 Connection ......................................................10

5.3. Reference Diagram for Signal Output Terminal CN5 Connection ..............................................10

5.4. Connection between GTC-540 Receiver Unit and Detection Unit ..............................................11

6. Menu Table ...................................................................................................................................................................12

7. Operation .......................................................................................................................................................................14

7.1. Connection Check .............................................................................................................................................14

7.2. Power ON..............................................................................................................................................................14

7.3. Gas Concentration Display ............................................................................................................................14

7.4. Password Input ...................................................................................................................................................15

7.5. Program Data Setting......................................................................................................................................15

7.6. Alarm Data Setting............................................................................................................................................17

7.7. Option Setting.....................................................................................................................................................20

7.8. Test Mode Setting.............................................................................................................................................21

7.9. Maintenance Function Setting.....................................................................................................................22

7.10. Test Function Setting.....................................................................................................................................24

7.11. DOWN (Stand-by) Mode.............................................................................................................................24

7.12. Factory Initialization Function....................................................................................................................25

7.13. Calibration Data Initialization ....................................................................................................................26

8. RS485 MODBUS Communication Data.............................................................................................................26

8.1. 4~20mA Current Output................................................................................................................................26

8.2. 485 MODBUS Interface...................................................................................................................................27

8.2.1. RS-485 Communication Setting.....................................................................................................27

8.2.2. Address Structure..................................................................................................................................27

9. Outside View and Dimensions..............................................................................................................................28

10. Revision History..................................................................................................................................................30

GTC-540 Instruction Manual

PAGE 4 of 30 Rev3, 2014.09.01

1. Overview

GTC-540 receiver unit adopts the high performance A/D converter and micro-process

and is equipped with diverse functions.

GTC-540 receiver unit is independent receiver unit connected with one detection unit,

protected by case using ABS material and displays the concentration with FND digital

display and 3-color bar graph LED.

It has primary alarm, secondary alarm and tertiary alarm function and failure alarm

function.

2. Structure

GTC-540 Independent receiver unit displays the alarm with audio signal (buzzer) and

visual signal (Alarm LED) and has the function to hold the maximum measured values

when the alarm is activated

Since GTC-540 receiver unit allows the remote control to reset alarm and has output

for the alarm (SPDT contact), the gang control function can be performed.

GTC-540 receiver unit provides the 4-20mA DC of output for the measured value and

allows digital communication using RS-485 communication signal (Option).

GTC-540 Instruction Manual

PAGE 5 of 30 Rev3, 2014.09.01

3. Specification

I T E M S

S P E C I F I C A T I O N

Model

GTC-540

Operation display

6-LED( Power, 3-alarm, Trouble, Stan-by for Maintenance )

Measuring display

3-Digit 1.8”FND & Bar-graph(32 segment, 3-color LED)

Measuring range

1~999 (Programmable) / %LEL , %volume , ppm

Alarm display

Visual display: 3-Alarm, Trouble LED, Mars light

Audio display: Buzzer signal

Alarm output Signal

3-stage Alarm, Trouble/ AC250V 5A Relay contact(SPDT)

Alarm level set

Set the program within measuring range

Input signal

4~20mA DC( 2wire or 3wire)

Output signal

4~20mA DC

Isolated RS-485 Modbus(Option)

Reset signal

Reset switch and remote control

Program set mode

Set strength and type of alarm (1,2,3 alarm)

Set time of alarm (immediate & delayed (1~60 sec))

Alarm range (Dead band)

Compensate the measured value (SAD)

Set relay output to on/off

Operating temperature

-20℃~ +50℃

Operating humidity

0~99%.RH(non-condensing)

Operating power

AC85~260V / 3.6W

24V DC (Option)

Current Consumption

Minimum: 50mA (While the gas concentration is displayed,

gas value 0)

Maximum: 180mA(while gas concentration is displayed, gas

value Over)

(Buzzer: 25mA, Relay: each 20mA for Alarm 1,2,3)

And when the Mars light or product is added, the current

consumption is increased

Dimensions

235X355X117

Weight

1.38Kg

GTC-540 Instruction Manual

PAGE 6 of 30 Rev3, 2014.09.01

4. Name of Each Part and Major Function

4.1. Component

212.48

235.59

23 22

2928272425 26

GTC-540 Instruction Manual

PAGE 7 of 30 Rev3, 2014.09.01

No.

Descriptions

Case Front

TEST S/W

Case body

RESET S/W

Mars Light

BZ-STOP S/W

Mount Boss(2- Ø6.5)

Buzzer

Conduit connection

(1- Ø 16.5 , 5-Ø20.5)

Terminal Block Cover

O-Ring <NBR>

RS-485 module(Option)

Power LED

SMPS

Maintenance LED

Power ON/OFF S/W

Failure LED

Fuse

Alarm 3 LED

Input Power Terminal (CN7)

Alarm 2 LED

External Mars light power Terminal

(CN9)

Alarm 1 LED

Signal output terminal (CN5)

3Color Bar_Graph LED

Signal I/O terminal (CN6)

Function S/W

Cover Fixing Hook

UP S/W

LCD PCB Ass’y

DOWN S/W (Stand-by)

[Abbreviation Table for Name in Diagram]

4.2. Detailed Explanation of Each Part

1. Case cover

Made of ABS material, and fix the display and protect the circuit from surrounding

environment and the external shock.

2. Case body

Made of ABS material and fix the main PCB and protect the circuit from surrounding

environment and the external shock.

3. Mars light

When alarm is activated, Mars light is turned on.

4. Mount hole(2-Ø6.5)

This is the hole to fix the control unit to external wall or other mounting plate

5. Conduit connection

(1-Ø16.5, 5-Ø20.5)

Total 6 holes of Ø16.5 and Ø 20.5 are made at the bottom. Connect the power

cable, signal cable, etc. using the cable inlet according to the site condition.

6. O –Ring <NBR>

Prevent the water from penetrating inside.

7. Power LED

Power LED is turned on when the power is put in.

8. Maintenance LED

(Stand-by LED)

When the detector is in maintenance mode, STD-BY LED is flickering.

9. Trouble LED

When the trouble in the receiver unit and detection unit occurs, trouble LED is turned

on.

Ex) * When occurring the defective connection with detection unit or abnormality

10. Tertiary alarm LED

(Alarm 3 LED )

When tertiary alarm is activated, Alarm 3 LED is turned on.

If the value reaches to the value for tertiary alarm when performing test function, Alarm 3

LED is turned on.

11. Secondary Alarm LED

(Alarm 2 LED )

When secondary alarm is activated, Alarm 2 LED is turned on.

If the value reaches to the value for secondary alarm when performing test function,

Alarm 2 LED is turned on.

GTC-540 Instruction Manual

PAGE 8 of 30 Rev3, 2014.09.01

12. Primary Alarm LED

(Alarm 1 LED )

When primary alarm is activated, Alarm 1 LED is turned on.

If the value reaches to the value for primary alarm when performing test function, Alarm

1 LED is turned on.

13. 3-Color Bar Graph

LED (3-Color bar graph

LED)

3 Color bar graph LED displays the measured value and the set value for alarm

consecutively like FND display.

When the measured value is less than primary alarm, it is turned on in green, when it

is above than the primary alarm and below the secondary alarm, in orange, and

when it is above than the secondary alarm, it is turned on in red.

If the measured value is above than the set value for alarm, the bar graph is holding at

maximum value and bar graph LED is flickering.

14. “FUNC”S/W

“FUNC” S/W is the key to enter the data by switching and selecting the functions such as

alarm value setting, alarm type setting, alarm dead band setting, etc.

15. “UP”S/W

This is the function S/W and is used to raise the set value or to select the next set value.

When setting the range of set values greatly, the set value is changed quickly if ‘UP’

S/W is being pressed for a while.

16. “DOWN”S/W

This is the function S/W and is used to reduce the set value or to select the previous set

value.

When setting the range of set values greatly, the set value is changed quickly if

‘DOWN’S/W is being pressed for a while.

17. “TEST”S/W

If “TEST”S/W is pressed, the mode is changed to the mode performing self-diagnosis.

FND for measured value is flickering and is the function to check the alarm operation by

adjusting the measured value using “UP”S/W and “DOWN”S/W.

Self-diagnosis is reset if the “RESET”S/W is pressed

18. “RESET”S/W

It performs alarm reset, self-test reset, program setting reset, etc.

19. “BZ-STOP”S/W

When the alarm is activated, it is used to stop the buzzer.

20. Buzzer

When the alarm and the trouble alarm are activated and test is performed, The

buzzer is sounded consecutively.

21. Terminal Block Cover

To supply the power to the product, open the cover and connect the power cable.

22. RS-485

Communication

Module (Option)

RS-485 Communication Module is the isolation type and can exchange the current

concentration, set value, etc. connected with PC or other external communication

equipments.

23. SMPS

This is the device converting 220V-AC to 24V-DC.

24. Power ON/OFF

S/W

This is the switch used to turn the control unit power ON and OFF and when

performing the works such as cable connection, etc, its power should be turned off.

25. Fuse

It works as interrupter protecting the product by cutting off the fuse with the heat

generated when the over current is running.

26. Power Input

Terminal

This is the terminal to connect the power cable for control unit operation.

27. External Mars Light

Terminal

This is subsidiary terminal to install external Mars light when this control unit is in

operation.

28. Signal output

terminal

This is used to connect the relay dry contact signal output such as alarm and failure,

etc. and the interrupter signal output cable, etc.

29. Signal I/O terminal

This is used to connect cable for the power supply of gas leak detector, 4-20mA

current output, RS-485 MODBUS communication, etc.

30. Cover Fixing Hook

This is the device to fix the cover on the case body and pull the cover while pressing

the hook to open the cover

31. LCD PCB Ass’y

It displays the measured value of the detector continuously

When the test is performed, the value set by the user is displayed flickering.

GTC-540 Instruction Manual

PAGE 9 of 30 Rev3, 2014.09.01

5. Terminal Connection Diagram

5.1. Power Supply Connection

Connect the AC power (85~260V 50/60Hz) to CN7 as shown in figure.

(In case of using DC24V, it should be requested separately when

ordering the product, and when the DC24V type of product is delivered

according to the user’s request, the positive of DC24V should be

connected to L1 of CN7 and the negative to L2.

GTC-540 Instruction Manual

PAGE 10 of 30 Rev3, 2014.09.01

5.2. Reference Diagram for Signal I/O Terminal

CN6 Connection

Caution) RS-485 Cable should be used dedicated RS-485 cable and for the

connection cable to connect with 4~20mA output and detector, the shield cable of

CVVS or CVVSB higher than 0.75sq should be used!

5.3. Reference Diagram for Signal Output Terminal

CN5 Connection

-. AL1, AL2, AL3, TROUBLE display the relay contact signal when the alarm is

activated or trouble occurs.

-. Alarm Lamp (LP) can be connected with External DC Mars light.

-. Only the Mars light designated by Head Office can be connected with CN4, which

is operated same as LP.

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