GASTRON GTD-2000ExW Manuale utente

GTD-2000ExW

Instruction Manual

Headquarters / Engineering research 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 : [email protected]

www.gastron.com

Read in detail for correct use.

Gas & Flame

Detection System

GTD-2000ExW

Instruction Manual

www.gastron.com

02_03

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]

www.gastron.com

04_05

ContentsContents

GTD-2000ExW

Instruction Manual

7.2.1. Zero Calibration······································································································································· 22

7.2.2. Span Calibration······································································································································ 23

7.3. ALARM MODE··················································································································································· 24

8. Troubleshooting·························································································································································· 26

8.1. Fault List ····························································································································································· 26

8.2. Recovery List ······················································································································································ 26

9. Drawings and Dimensions········································································································································ 27

9.1. Standard Type ··················································································································································· 27

9.2. Warning light GTL-100······································································································································ 28

9.3. When Connecting Warning Light ····················································································································· 29

10. Precautions before Installation ································································································································ 30

10.1. Selecting a Place for Installation (Occupation Safety and Health Act Data) ···················································· 30

10.2. Selecting a Site for Installation (High-Pressure Gas Safety Control Act Data) ················································· 30

10.3. Precautions during Installation·························································································································· 30

11. Revision 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 4~20mA Source Operation Type ·························································································· 15

5.2.2. Wiring for 4~20mA Sink Operation Type······························································································· 15

5.2.3. Wiring for 4~20mA 3Wire Sink Operation Type···················································································· 16

5.3. Installation Cable Length ··································································································································· 16

6. Detector Operation Flow ·········································································································································· 18

6.1. Initial Operation Status (Power On) ·················································································································· 18

6.2. Measuring Mode ··············································································································································· 18

6.3. Operation Flow ·················································································································································· 19

6.4. Menu Configuration Table ································································································································ 20

7. System Mode ······························································································································································ 21

7.1. PROGRAM MODE ············································································································································· 21

7.2. CALIBRATION MODE········································································································································· 22

www.gastron.com

06_07

GTD-2000ExW flammable gas detector has been developed to detect gas leaked from industrial sites and various

flammable gases generated from factories, gas storages, and manufacturing processes that produce or use toxic gases

and to prevent accidents in advance.

GTD-2000ExW flammable gas detector is installed in areas with gas leak hazards and continuously monitors gas leak. It

displays measurements on LCD of the detector, converts and transmits data in DC 4~20 mA standard output signal. Also,

for DC 4~20 mA standard output, output signal transmission length between detector and receiver can be connected up

to 2,500 m. (When Cable CVVS or CVVSB 1.5sq and higher is used.) GTD-2000Ex flammable gas detector must be used

at a height below 1,000 m above sea level.

GTD-2000ExW

Instruction Manual

Body of GTD-2000Ex is made of Aluminum alloy and the gas sensor module is made of stainless steel. It consists of a

complete explosion-proof enclosure (Ex d IIC T6). This product can be installed in areas with combustible gas leak and

explosion hazards. It has built-in display (LCD or OLED) on the detector to display gas leak status at installed site. Internal

configuration consists of display part that indicates measurements, terminal part that output measurements (DC 4~20

mA) externally, and a PCB board. External configuration consists 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.

2. Conguration

[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-1000)

Safety Power Supply Unit

(24VDC)

Safety Controller

(PLC or DCS)

GTD-2000Ex Gas Detector

Hazardous Area (Filed) Safe Area

3.1. Basic Specifications

ITEMS SPECIFICATION

Measuring Type Diffusion

Measuring Value Display

- LCD or OLED Display

- Green, Red, Yellow LED

- Sound Output(95dB)

Measuring Method

Catalytic Cell

Thermal Conductivity Cell

Heated-semiconductor Cell

Detectible Gas 가연성가스(Flammablegas)

Measuring Range 0~100% LEL

Accuracy ≤±3%/FullRange

Zero Drift ≤2%/FullRange

Response Time 90% of full Scale in less than 15 sec

Approvals Classification

KCs: Ex d llC T6,T5,T4

ATEX/IECEX: II 2 G Ex d IIC Gb T4~T6

SIL2, MED, ABS, DNV

Basic Interface Analog 4-20mA current interface

HART Interface HART REV7 (Option)

Option HART Board

Warranty Transmitter & Lamp 2Years

Sensor 1Year

3.2. Mechanical Specifications

ITEMS SPECIFICATION

Explosion-Proof Type Explosion-Proof Enclosure

Dimension - Transmitter: 136(W) × 166(H) × 110(D) mm

- Lamp: 83.8(W) × 85(H) × 48(D) mm

Weight including Sensor App. 2.2kg

Mounting Type Wall mount

Mounting Hole Ø7±0.1

Cable Inlet 3/4"PF(1/2"or3/4"NPT)

Body Material

Transmitter Aluminum Alloy

Sensor Stainless Steel (STS316)

Lamp Cover PC

Lamp Body Stainless Steel (SUS304)

3. Specication1. Overview

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08_09

4.1. Components3.3. 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:

4.8W @+24 VDC

200mA @+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 - 21.4 mA

22mA

3mA

Analog output current ripple & noise max ±20uA

Wiring requirement Power CVVS or CVVSB with shield

Analog CVVS or CVVSB with shield

Cable Connection Length Analog 2500m

EMC Protection: Complies with EN50270

No NAME DESCRIPTIONS

1Housing Body Protects PCB Board built in Sensor and Housing from external environmental change and shock.

2Housing Cover Top surface is built with circular glass to enable monitoring of measurement displayed on LCD.

3MAIN 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.

4Display PCB Displays data (measurement) sent from Main/ Terminal (Transmitter) PCB on LCD and displays power

status with a power lamp.

5Power/Signal Terminal CN8 consists DC18V~31 24 V power supply and DC 4~20 mA standard output connection terminal

(VISO, +24V, mA, GND, ETH).

6Sensor Terminal CN4 is Sensor Connection Terminal.

7Power LED It is lamp that turns on when power is supplied.

8Function Key It is used to enter function setting mode from gas measuring mode by contacting magnet-bar for 2

sec or longer. It is also used to save changed data from function setting mode.

3.4. Environmental Specifications

ITEMS SPECIFICATION

Operation Temperature Transmitter -40to80℃

Sensor Refer to Sensor Specification

Storage Temperature Transmitter -40to80℃

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

[Figure 2. GTD-2000ExW Components]

GTD-2000ExW

Instruction Manual 4. Name and Description of Each Part3. Specication

www.gastron.com

10_11

4.1. Components

No NAME DESCRIPTIONS

9Reset Key

To cancel or return to the previous status during Parameter setting, use the Magnet-Bar and

touch once.

(Each touch returns to the previous status by one unit.)

10 ↑(UP)Key During conversion of mode or number, use the Magnet-Bar and touch once. Each touch converts

or increases displayed value by one unit.

11 ↓(DOWN)Key During conversion of mode or number, use the Magnet-Bar and touch once. Each touch converts

or increases displayed value by one unit.

12 External Earth Ground

It must be grounded to ourside of detector for protection from external noise or strong electric

field.

Use a conductor that is 4 mm or longer when coupling ground line.

13 Mount Hole Hole to fix the gas detector on external wall or other installation sites.

14 Sensor It is a site that detects actual gas leak. It converts the amount of gas leak into electrical signal and

transmits to the Main PCB.

15 Conduit Connection It is supplied for inlet of power supply and measurement output signal for the detector during

installation.Forcableinlet,PForNPT3/4",1/2"areprepared.

16 Internal Ground

It must be grounded to inside of detector for protection from external noise or strong electric

field.

Use a conductor that is 4 mm or longer when coupling ground line.

17 FRONT CASE 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 signal upon an event of error and generates warning sound.

22 FIXED RING It prevents deviation of sinter filter upon external shock.

23 FLAME ARRESTER It blocks flow in of dust, debris, water, gas and delivers warning sound from the buzzer to

outside.

24 ARREST CAP It protects sinter filter from external shock.

25 LED COVER It is a joint for LED PCB ASS'Y and covered with moulding.

26 LED PCB ASS’Y It is a multi-color LED that displays status.

27 NUT It serves to fix parts to the compliment part.

28 SHAFT BODY It serves to fix parts to the opponent.

29 CABLE WIRE It supplies power and transmits data.

[Table 1. GTD-2000ExW Transmitter Components Description]

GTD-2000ExW

Instruction Manual

4.2. LAMP Function Description

■Innormalstatus,greenLEDlightsonandbuzzerdoesnotring.

■WhenAlarm-1signalisreceived,redLEDflickersin1secintervalandbuzzerringsin1secinterval.

■WhenAlarm-2signalisreceived,redLEDlightsonandbuzzerringscontinuously.

■WhenTroublesignalisreceived,yellowLEDlightsonandbuzzerdoesnotring.

4. Name and Description of Each Part4. Name and Description of Each Part

[Figure 3. Slotted Set Screw]

[Table 2. Main PCB Key Part Description]

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12_13

5. Installation5. Installation

GTD-2000ExW

Instruction Manual

5.2. Main PCB Configuration

It is prohibited for an individual, other than an approved user or a technician responsible for installation and repair from

the head office, to install a gas leak detector on site or open the cover of the installed gas leak detector and manipulate

it. This may cause serious loss of life and property from fire, explosion, and etc. In addition, please check whether there

is any remaining explosive gas or combustible material in the surroundings. Power must be turned off before performing

work.

■Afterdetachingthedisplayparts,theMainPCBterminallayoutappearsasshowninthefigurebelow.

5.1. Detachment of Housing Cover

■<Warning-Donotopenwhenelectrical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.

 ① Pushinleftandrightfixingringslocatedonfrontside

of LCD at the same time.

 ② Whilepushing,pullthedisplaypartstowardsthefront

to detach from gas detector body.

 ③ Afterdetachingthedisplayparts,theMainPCBis

installed at the bottom part of the detector body.

[Figure 4. Display Part Detaching Method]

No NAME DESCRIPTION

1CN8 Power & Output Signal Terminal

2J1 4~20mA Source / Sink Selection Jumper ( ON: Source Type, OFF: Sink Type)

3CN1 Display LCD Connector

4CN4 Sensor Connector

5CN2 Program download Connector

6D1 Status LED (Flashes in 1 sec interval during normal operation)

7CN5,CN6,CN7 HART Option Board Connector

8CN9 Warning light (GTL-100) Interface Connector

[Figure 5. Main PCB Terminal Layout]

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14_15

5. Installation5. Installation

GTD-2000ExW

Instruction Manual

■UsingCN5,CN6,andCN7showninthelayoutabove,HARToptionboardcanbeattachedand3ØScrewholes

located at top left of HART option board are used for fixing.

■Afterdisassemblingdisplayparts,thereisaterminalblockintheMainPCBasshowninthefigurebelow.Holding

it with hands and pulling towards ceiling detaches it from the Main PCB.

■<Warning-Turnoffpowerbeforeconnectingpowerterminal>

■Loosen5terminalfixingscrewslocatedattoppartofdetachedterminalblockCN8(VIS,+,mA,-,ETH)

 Connectorbyturningcounter-clockwiseusingaΘdriver.ConnectDC18~24Vpowerto+,and-then

connect signal cable to mA. Tighten 5 terminal fixing screws clockwise so that terminal does not leave the track

then insert Main PCB as the same condition before disassembly.

[Figure 6. 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)

1VISO VIS N.C 4~20mA Sink In(+)

2+24V ++24V / POWER (+)

3mA mA 4~20mA Source Out 4~20mA Sink Out(-)

4GND -GND / POWER (-)

5ETH ET EARTH

■UseCVVSorCVVSB2.0sq↑ShieldCableforterminalconfiguration.

■Toconnect4PinterminalfromtheexistingoldGTD-2000ExWmodel,connectterminalsinreferencetopin#2,

which is +24V.

5.2.1. Wiring for 4~20mA Source Operation Type

5.2.2. Wiring for 4~20mA Sink Operation Type

[Figure 7. 4-20mA Source Configuration]

[Figure 8. 4-20mA Sink Configuration]

■Connect4-20mAsignalterminalatPLCsideto'mA'

of GTD-2000Ex. GND terminal is used in common

with power.

Then, turn on the J1 jumper.

■HARTCommunicatorcanonlybeusedinmodels

using HART Option board.

■Connect(+)and(-)terminalsfor4-20mAsink

output at PLC side to VISO terminal and 'mA'

terminal, respectively. Then, turn off the J1 jumper.

■HARTCommunicatorcanonlybeusedinmodels

using HART Option board.

<Terminal-fixing Screw>

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16_17

5. Installation5. Installation

GTD-2000ExW

Instruction Manual

5.2.3. Wiring for 4~20mA 3Wire Sink Operation Type

■Connect(+)and(-)terminalsfor4-20mAsinkoutput

at PLC side to VISO terminal and power (24V DC)

(-) terminal, respectively. Connect 'mA' terminal

of GTD-2000ExW to 'GND' terminal. Then, turn off

the J1 jumper.

[Figure 9. 4-20mA 3Wire Sink Configuration]

5.3. Installation Cable Length

■ThemaximumlengthbetweenGTD-2000ExWandpowersupplyisdecidedbywirespecification.

■Max.InstallationLength=VMAXDROP÷IMAX÷WIRER/m÷2

 ·VMAXDROP: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=2276m≒2.000m

■Powercableinstallationforeachcabletypeisasshowninthetablebelow.

AWG mm2 COPPER RESISTANCE(ohms/m) METERS

12 3.31 0.00521 2879

14 2.08 0.00828 1811

16 1.31 0.01318 1138

18 0.82 0.02095 715

20 0.518 0.0333 450

[Figure 10. Calculation of GTD-2000ExW Installation Cable Length]

[Table 4. GTD- 2000ExW Power Cable Installation Length]

www.gastron.com

18_19

GTD-2000ExW

Instruction Manual

6.1. Initial Operation Status (Power On)

■

After wiring to power terminal at the top of Main PCB board then supply power, the following contents are displayed

on LCD. Approx. 30 m of stabilization of time is needed from the initial supply of operation power and it starts to

operate normally after sufficient stabilization.

GTD-2000

[V X.XX] - When power turns on, model name and product firmware version are displayed on LCD (OLED).

SELF TEST

[ >>>0179] - Self test is performed for 3 min '>' symbol in the second row shows the progress.

[ %LEL]

[ 0.0]

- In normal operation mode, it runs as below.

- In the first row, measured gas name and unit are displayed in 1 sec interval. In the second row, the

- current measurement is displayed.

- In the current screen, touching the magnet-bar on 'Func' key for 2 sec or longer changes to setting

- mode.

※DuringModbusnetwork,'*'isdisplayedontheleftofthefirstrow.

※ENG.Whenthemodeison,'<'isdisplayedontheleftofthesecondrow.

[ COMB.]

[ 0.0]

[ %LEL]

[ 30]

- When Alarm 1 or 2 occurs, it runs as below. (It only runs when ALARM EN setting in Maintenance

- Mode is ON)

- The first row runs the same as in normal status. In the second row, alarm message and gas

- measurement are displayed in 1 sec interval.

- When GTL100 explosion-proof warning light is installed, upon an event of alarm1, red LED and buzzer

- flicker and run in 1 sec interval. Upon an event of alarm2, they continuously run without flickering.

- If alarm latch is on, the alarm continuously 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 device, it displays fault number and message.

- At this time, 4~20 mA runs below 2 mA.

-ItisamodethatdisplayswhenFault#1sensorontheleftisnotequipped.

6.2. Measuring Mode

■ Afterpoweron,whenthereisnoerrorfrom"SELFTEST",itautomaticallyentersMeasuringMode.

6.3. Operation Flow

■Afterpoweron,itpassesself-testthenentersMeasuringMode.Here,byoperatingfrontkeys,youcangoto

internal System Mode.

■TimeoutforLevel1andLevel2are10sec.Itissetto1hourforLevel2CalibrationandTestMode.

■When"RESET"keycontactsatProgramModeScreen,itreturnstoMeasuringMode.When"RESET"keycontacts

at each Program Setting Screen, it returns to the parent step.

■Operationkeysfordetectorsystemmodearedefinedasbelow.

[Figure 11. GTD-2000ExW Mode Configuration]

ITEM NAME DESCRIPTION

FUNC Function key Detector Mode Setting Entry Function (Insert Magnetic-bar for 2 sec or longer in measuring mode)

Level2 Next stage entering function and setting saving function

RESET Reset key Move to the previous stage from the level entered.

↑Up key Next level mode that is configured in LEVEL1 and Change in Level2 setting Plus

↓Down key Next level mode that is configured in LEVEL1 and Change in Level2 setting Minus

6. Detector Operation Flow6. Detector Operation Flow

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