Gas Detection GDA 3000 User manual

Gas Detection (Australia) Pty Ltd
GDA 3000
Infrared Gas Das Detector
Operating Manual
Manual Revision: 1
Manual Reference Revision: 2
Hardware Version: GIR3000H MAIN Rev1 2012-07-25
© Copyright Gas Detection (Australia) Pty Ltd Apr 2017

Gas Detection (Australia) Pty Ltd Page 2 of 44 M-GDA-3000 Rev 1
Thank you for purchasing this product from Gas Detection (Australia) Pty Ltd
This manual contains information about the method of installation, simple maintenance and
troubleshooting of the GDA 3000 gas detector. Please read it carefully and keep it nearby for
further reference.
If you have any further question about the product, please contact us.
Location: Unit K1, USQ, Baker Street Toowoomba, QLD 4350
Address: PO BOX 597, Darling Heights, QLD 4350
Phone: [phone]
Web: www.gasdetectionaustralia.com.au
Email: [e-mail]
Note:
The calibration period for a sensor will depend on a number of factors such as the
environment in which it is used, operating temperature, humidity, atmospheric pressure and
environmental pollutants.
In all cases we recommend sensors are calibrated in line with target market legislation.
In order for these sensors to maintain operational efficiency and performance it is
recommended that the detector is checked for calibration on 3 monthly periodic cycle.
The calibration should be carried out by fully trained and authorised and approved technicians
approved by GDA.

Gas Detection (Australia) Pty Ltd Page 3 of 44 M-GDA-3000 Rev 1
PROPRIETARY RIGHTS
No part of the hardware or documentation may be reproduced, transmitted, transcribed, stored
in a retrieval system, or translated into any language or computer language, in any form or by
any means, without prior written permission of GDA.
While great efforts have been made to ensure the accuracy and clarity of this document, GDA
assumes no liability resulting from any omissions in this document, or from misuse of the
information contained herein. The information in this document has been carefully checked
and is believed to be entirely reliable with all of the necessary information included. GDA
reserves the right to make changes to any products described herein to improve reliability,
function, or design, and reserves the right to revise this document and make changes from
time to time in content hereof with no obligation to notify any persons of revisions or changes.
GDA does not assume any liability arising out of the application or any use of any product or
circuit described herein; neither does it convey license under its patent rights or the rights of
others.

Gas Detection (Australia) Pty Ltd Page 4 of 44 M-GDA-3000 Rev 1
Table of Contents
1. Introduction ............................................................................................................................6
2. Structure .................................................................................................................................6
3. Specification............................................................................................................................7
4. Name of Components and Main Features.................................................................................8
4.1. Components ....................................................................................................................................8
4.2. Components Description .................................................................................................................9
5. Terminal Wiring Diagram .......................................................................................................11
5.1. Separation of Detector Body and Cover........................................................................................11
5.2. Main PCB Configuration................................................................................................................12
5.2.1 Main PCB configuration ..........................................................................................................12
5.2.2. HART Board configuration .....................................................................................................13
5.3. Main PCB terminal description and wiring method ......................................................................14
5.3.1. RELAY DRIVE TYPE WIRING METHOD ....................................................................................15
5.3.2. 4~20mA SOURCE DRIVE TYPE WIRING METHOD...................................................................16
5.3.3. 4~20mA SINK DRIVE TYPE WIRING METHOD.........................................................................17
5.3.1. Connection method with our main Control Unit ...................................................................18
6. Standard Type outside view and Dimensions..........................................................................19
7. Warning light type: Outside view and Dimensions ..................................................................20
8. Raincover type: Outside view and Dimensions .......................................................................21
9. Menu Configuration Table .....................................................................................................22
10. Detector activation Flow and KEY operation .......................................................................25
10.1. Sensor activation Flow ................................................................................................................25
10.2. Sensor KEY configuration and description ..................................................................................25
11. Detailed Description of Operational States and Menu.........................................................26
11.1. Initial State (Power On)...............................................................................................................26
11.2. Gas Measuring Mode..................................................................................................................26
11.3. How to Set PROGRAMMABLE MODE..........................................................................................27
11.4. How to use Calibration Mode ..................................................................................................... 28
11.4.1. Zero Calibration and Span Calibration .................................................................................28
11.5. How to set alarm in Alarm mode ................................................................................................30

Gas Detection (Australia) Pty Ltd Page 5 of 44 M-GDA-3000 Rev 1
11.6. How to use Test Mode ................................................................................................................33
11.7. How to use IR SENSOR DATA MODE ...........................................................................................34
11.8. How to use VERSION MODE........................................................................................................35
11.9. How to set Maintenance Mode...................................................................................................36
11.10. How to configure 485 MODBUS................................................................................................38
11.11. How to configure in Device Mode .............................................................................................39
11.12. How to use INSPECTION MODE.................................................................................................40
11.13. Data initialization......................................................................................................................40
11.14. Correction data initialization ....................................................................................................40
12. Troubleshooting ................................................................................................................41
13. Caution before installation.................................................................................................42
13.1. Selection of installation location (Occupational Safety and Health Law) ...................................42
13.2. Selection of installation location (High Pressure Gas Safety Management Regulations)...........42
13.3. Precaution before installation.....................................................................................................43
14. Revision History .................................................................................................................44

Gas Detection (Australia) Pty Ltd Page 6 of 44 M-GDA-3000 Rev 1
1. Introduction
The GDA-3000 is an infrared(IR)-type gas detector that is developed to prevent serious
accidents caused by gas leaks by detecting a variety of gases in hazardous areas such as
industrial plants, gas storage facilities and factories in the process of producing or consuming
flammable gases, CO or CO2.
When the GDA-3000, IR-type gas detector is installed in locations that may have gas leaks, it
will continuously monitor the ambient level of gas and display the measured gas value on its
integrated LCD or OLED. Additionally, it supplies DC 4-20mA standard output, isolated RS-
485 communication signal, HART and relay contact signal on occurrence of gas alarms.
For standard output of DC 4-20mA, output receiver can support up to 500 meters distance
away from gas detector to receive output signal(When CVVS or CVVSB 2.0 sq↑shield cable
is used). And communication signal of RS-485 can be transmitted up to 1,000 meters (when
RS-485 dedicated line is used).
2. Structure
The body of GDA-3000 is made of aluminium alloy and its structure is designed to be
explosion-proof(Ex d IIC T6). The product can be installed in areas that may have flammable
gas leaks and explosions. The integrated liquid crystal display(LCD or OLED) displays current
gas leakage level on the spot.
The internal structure consists of LCD for gas level, connector delivering output such as
measured value(DC 4-20mA) or isolated RS-485 communication signal(optional), HART
communication and alarm signal, and two PCB boards. The outer structure is composed of
sensing parts for detecting gas leakage and cable inlets (2ea). The gas detector can be
calibrated from outside of the device using magnet-bar, which makes maintenance easier.

Gas Detection (Australia) Pty Ltd Page 7 of 44 M-GDA-3000 Rev 1
3. Specification
ITEMS
SPECIFICATION
Measuring Type
Diffusion
Measuring Value Display
Local digital LCD(OLED) display
Means Value Display
Back light, 2-line/16-characters LCD & OLED
Approval
Ex d IIC T6, IP65
Detectible Gas
Combustible Gas
Carbon Dioxide(CO2)
Carbon monoxide(CO)
Measuring Method
Non-Dispersive Infrared (NDIR Cell)
Measuring Range
Combustible Gas : 0~10,000ppm / 0~100%, LEL /
0~100% VOL
CO2 : 1.0% ~ 100% VOL
CO : 5% ~ 100% VOL,
Response Time
90% of full scale in less than 10 seconds
Accuracy
±3% / Full scale
Zero Drift
Less than 2% full scale
Operating Temperature
-20 to 60°C
Operating Humidity
0 to 99% RH (Non-condensing)
Analogue Signal Output
Measurement output : 4-20mA DC/Full Scale
Diagnostic output : 3mA
Calibration output : 3mA
Faulty output : 2mA
HART ®Interface
HART REV7 / Optional Board (*1)
Alarm Signal Output
SPST Signal of Relay contact : 250V/1A
Calibration Work
Magnetic interface to configure alarm
Cable Connection Length
Max. 500m : 4~20mA signal
Max. 1000m : Isolated RS-485 Signal
Power Supply
18-31V DC (DC 24V normal) / Max. 400mA
Conduit Connection
1/2" or 3/4"PF, NPT(Standard : 3/4" PF)
Signal cable Connection
Power source + current : CVVS or CVVSB
2.0sq↑x 3wires shield
RS-485 communication : 1 par(UL2919 RS-485)
Option
HART ® Interface board
GTL-100 (explosion proof LED)
Rain cover
Dimensions
156(W) x 322(H) x 110(D) mm
Weight
Approx. 3.0kg
[Table 1. GDA3000 Specification ]
*Note 1) Regarding HART, refer to document on GDA 3000 HART®Field Device Specification.

Gas Detection (Australia) Pty Ltd Page 8 of 44 M-GDA-3000 Rev 1
4. Name of Components and Main Features
4.1. Components
[Figure 1. GDA 3000 Components]
No.
Name
No.
Name
1
HOUSING
14
RESET SWITCH
2
MAIN PCB
15
↑ SWITCH
3
DISPLAY PCB
16
↓ SWITCH
4
POWER/SIGNAL TERMINAL
17
EXTERNAL EARTH (4sq ↑)
5
ALARM SIGNAL TERMINAL
18
MOUNT HOLES (2-Ø7)
6
RS-485 SIGNAL TERMINAL
19
COVER FIXED SCREW
7
SENSOR TERMINAL
20
SENSOR THREAD
8
POWER SWITCH
21
CABLE INLET
9
POWER LED LAMP
22
INTERNAL EARTH (2sq ↑)
10
TROUBLE LED LAMP
23
RS-485 Module or HART Module (Option)
11
ALARM1 LED LAMP
24
Relay Contact Type Selection
12
ALARM2 LED LAMP
25
Warning Light Connector
13
FUNCTION SWITCH
26
Program Downloading Connector
[Table 2. Components Reference Table]

Gas Detection (Australia) Pty Ltd Page 9 of 44 M-GDA-3000 Rev 1
4.2. Components Description
No.
Name of component
Description
1
Housing
Protecting sensors and PCB boards equipped inside the
device housing against environmental variations and shocks
2
Main PCB
Amplifying the output signal generated by sensor, converting it
to standard output of DC 4-20mA and transmitting converted
signal. And transmitting isolated RS-485 communication signal
and alarm relay contact signal. Also delivering data which will
be shown in display panel.
3
Display PCB
Showing data sent by main PCB in LCD or OLED. Also
displaying current event status with using power lamp, alarm
lamp and trouble lamp.
4
Power/Signal Terminal
CN12 is composed of connection terminal for supplying DC18-
24V power and connection terminal for standard output (viso,
+, mA, -).
5
Alarm signal Terminal
CN8 is an alarm signal connection terminal which outputs relay
contacts of trouble, alarm1 and alarm 2.
6
RS-485 signal terminal
CN3 is a signal connection terminal(A,B) for isolated RS-485
communication.
7
Sensor terminal
C10 is a sensor connection terminal(RD, WH, BK, BE).
8
Power on/off switch
Turning on or off power of gas detector. The switch should be
turned off when cable work or A/S is performed. After finishing
those works, the switch can be on.
9
Power lamp
When power switch turns on, this power lamp light will be on.
10
Trouble lamp
When fault occurs in circuit or sensor sensitivity, the trouble
lamp will be on.
11
Alarm1 lamp
The alarm1 lamp turns on when the measured value of gas
becomes over alarm1 level on gas leakage.
12
Alarm2 lamp
The alarm2 lamp turns on when the measured value of gas
becomes over alarm2 level on gas leakage
13
Function switch
In order to set parameters, this function switch is used to allow
the device to enter program mode by touching it with magnet-
bar for 2 seconds or more(Program mode, Calibration mode
and Test mode are also provided). The switch is also used to
input and set data.
14
Reset switch
Reset switch can be used to cancel setting parameter or return
back to previous state by touching it once with magnet bar.
(Each time it is touched with magnet bar, the mode will be
switched back to the immediate previous mode)
15
↑(Up) switch
This switch is used to transit mode or adjust number by
touching it with magnet bar. The mode will be switched in a
forward direction and the number in an increasing direction.

Gas Detection (Australia) Pty Ltd Page 10 of 44 M-GDA-3000 Rev 1
16
↓(Down) switch
This switch is used to transit mode or adjust number by
touching it with magnet bar. The mode will be switched in a
backward direction and the number in a decreasing direction.
17
External earth
The gas detector must be connected to ground via the external
earth point to protect it against external noises or high voltage.
18
Mount hole(ø7×2ea)
These holes are used to fix the gas detector on wall or other
installed places.
19
Cover fixed
screw(M4)
The gas detector’s housing body and housing cover must be
fixed with hex sockethead cap screw after they are assembled
in order to prevent separation which might be caused by
external shocks.
20
Sensor thread
Attachment places where IR gas Sensor(Detector) is attached.
21
Cable inlet
These cable inlets are used to supply power and input & output
measured data signal during installation. PF 3/4" is basically
provided.
22
Internal earth
The gas detector must be connected to ground via the internal
earth point to protect it against external noises or high voltage.
23
RS-485 Module /
HART Module
(Optional)
This is a connector which enables the detector to communicate
with PC or PLC through isolation-type RS-485 communication
protocol or HART. To activate RS-485 communication,
communication address must be assigned to the detector
properly.(the value is set to be 1 by default) For using HART,
polling-address and tag no. must be set appropriately.
24
Relay Contact
Type Selection
It enables the user to select relay contact between A and B.
When the detector is not ENERGIZER MODE, it will operate
with A contact(Normal Open) if the spot marked by A silk is
connected by jumper wire. It will operate with B contact(Normal
Close) if the spot marked by B silk is connected by jumper.
The other way, when the detector is ENERGIZER MODE, it will
operate with B contact if the spot marked by A silk is
connected by jumper wire. It will operate with A contact(Normal
Close) if the spot marked by B silk is connected by jumper.
25
Warning Light
Connector
(Optional)
This connector will be connected only if LED needs to be used.
26
Program Downloading
Connector
The connector enables the user to download program to the
product.
[Table 3. Detailed Description about components of the GDA-3000]

Gas Detection (Australia) Pty Ltd Page 11 of 44 M-GDA-3000 Rev 1
5. Terminal Wiring Diagram
WarningNever install, uncover, or manipulate the Detector other than
authorized
personnel or installation/repair service person from GDA, or serious loss of life and property
damage such as fire or explosion may occur. In addition, check around for explosive Gas or
flammable substances, followed by turning OFF before any work.
5.1. Separation of Detector Body and Cover
The Gas Detector Cover can be removed by turning the Cover fastening Slotted Set Screw
(M4 x 1ea) three to four rotations anti-clockwise using hex wrench (M2), followed by turning
the Cover counterclockwise by hand. After the separation of Cover, the LCD indicator
appears.
[Figure 2. Slotted Set Screw]
After the Cover removal, remove the Display Part as follows.
1. Click the left and right retainer
rings on the front of the LCD
display inwards at the same
time.
2. While holding, pull the Display
Part forward to separate from
the Gas detector Body.
3. With the Display Part removed,
the Main PCB is shown under
the Detector Body.
[Figure 3. Display Parts removal ]

Gas Detection (Australia) Pty Ltd Page 12 of 44 M-GDA-3000 Rev 1
5.2. Main PCB Configuration
5.2.1 Main PCB configuration
With the Display Part removed, the Main PCB terminal arrangement is shown as the following
Figure.
[Figure 4. Main PCB terminal arrangement ]
No.
Name
Description
1
CN12
Power & Output Signal Terminal
2
J4
4~20mA Source / Sink selection jumper
( ON: Source Type, OFF: Sink Type )
3
CN11
Display LCD Connector
4
CN10
Sensor Connector
5
CN6
Program download Connector
6
D1
Status LED ( blinks every second in normal operation )
7
CN1,CN2,CN4
HART Option Board Connector
8
CN5
Warning Light(GTL-100) Interface Connector
[Table 4. Main PCB main Parts Description]

Gas Detection (Australia) Pty Ltd Page 13 of 44 M-GDA-3000 Rev 1
5.2.2. HART Board configuration
HART Board consists of Option Board, and is connected using CN5, CN6, CN7 terminals of
Main PCB and the HART Board Screw at the top left.
[Figure 5. HART Board constituting Main PCB]
No.
Name
Description
1
HART Board Screw
Constructed using 3Ø Screw
2
Blank Hole
Reserve Hole
3
HART Board
Option Board for HART Interface
[Table 5. HART Board main Parts description ]

Gas Detection (Australia) Pty Ltd Page 14 of 44 M-GDA-3000 Rev 1
5.3. Main PCB terminal description and wiring method
If you remove the Display Part, there is the Terminal Block under the Main PCB as shown in
the following Figure 6. The Terminal Block can be removed from Main PCB by holding and
pulling upward by hand. Unscrew the 5 terminal set screws above the separated Terminal
Block CN12 (VIS, +, mA, -, ETH) Connector counter-clockwise with a Θ screwdriver; connect
DC18-24V power to +, -; connect Signal Cable to mA; tighten the terminal set screws
clockwise to keep the terminals in place; and insert it like before the removal.
[Figure 6. CN12 Terminal structure]
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
[Table 6. CN12 connector description ]
Note 1) Be sure to use CVVS or CVVSB 2.0sq↑ Shield Cable before Terminal construction.
Note 2) Fasten Terminals based on +24V of 2Pin to connect the 4Pin Terminal of existing
conventional GDA3000.

Gas Detection (Australia) Pty Ltd Page 15 of 44 M-GDA-3000 Rev 1
5.3.1. RELAY DRIVE TYPE WIRING METHOD
The Relay drive type of GDA-3000 can be operated by two ways.
There is De-Energized Mode and Energized Mode.
Main PCB is marked A, B silk to set Relay drive type and connect using Jumper as you want
Relay drive type.
[Figure 7. Main PCB Relay part Configuration]
Drive type
A Contact
B Contact
De-Energized
Connect Jumper to (A-C)
Connect Jumper to (B-C)
Energized
Connect Jumper to (B-C)
Connect Jumper to (A-C)
[Table 7. Relay drive type description]
Note 1) Be sure to use the same J1, J2, J3.
Note 2) Conventional GDA-3000 can be operated DE-Energized Mode.

Gas Detection (Australia) Pty Ltd Page 16 of 44 M-GDA-3000 Rev 1
5.3.2. 4~20mA SOURCE DRIVE TYPE WIRING METHOD
Connect 4-20mA Signal Terminal of PLC to ‘mA’ of GDA3000. GND Terminal is used in
common with the power. Turn J4 Jumper ON.
※HART Communicator can be used only in models utilizing HART Option Board.
[Figure 8. Analog 4~20mA Source Configuration]

Gas Detection (Australia) Pty Ltd Page 17 of 44 M-GDA-3000 Rev 1
5.3.3. 4~20mA SINK DRIVE TYPE WIRING METHOD
Connect 4-20mA Sink Output (+) Terminal of PLC to VISO Terminal; and (-) Terminal to ‘mA’
Terminal. Turn J4 Jumper OFF.
※HART Communicator can be used only in models utilizing HART Option Board.
[Figure 9. Analog 4~20mA Sink Configuration ]

Gas Detection (Australia) Pty Ltd Page 18 of 44 M-GDA-3000 Rev 1
5.3.1. Connection method with our main Control Unit
Connect CN12 (VISO,+, mA, -, ET) Connection Terminal of the Gas Detector and the Control
Unit with reference to the Figure below. (See product manual for each Control Unit.)
(GTC-100A Series Control unit)
(GTC-200A/210A Series Control unit)
(GTC-510A/520A Series Control unit)

Gas Detection (Australia) Pty Ltd Page 19 of 44 M-GDA-3000 Rev 1
6. Standard Type outside view and Dimensions
[Figure 10. GDA3000 outside view]

Gas Detection (Australia) Pty Ltd Page 20 of 44 M-GDA-3000 Rev 1
7. Warning light type: Outside view and Dimensions
[Figure 11. GDA3000 Warning Light type outside view]