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GDA 40125 Toxic Or Oxygen Gas Detection
Controller
Operating Manual
WARNING: THIS INSTRUMENT CONTAINS DELICATE COMPONENTS AVOID DROPPING OR
EXCESSIVE VIBRATION
This Sensor/Controller is designed and manufactured by
This manual must not be copied or reproduced in part without the express written permission
of Gas Detection (Australia) Pty Ltd. All information contained here is subject to modification.
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Table of Contents
Summary of Contents for Gas Detection GDA 40125
- Page 1 WARNING: THIS INSTRUMENT CONTAINS DELICATE COMPONENTS AVOID DROPPING OR EXCESSIVE VIBRATION This Sensor/Controller is designed and manufactured by This manual must not be copied or reproduced in part without the express written permission of Gas Detection (Australia) Pty Ltd. All information contained here is subject to modification.
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Page 2: System Specification
Mutes buzzer and resets latched alarms 2 Setup Buttons Allows changes to controller setup (Internal) Zero and Span Allows changes for calibration (Internal) adjustment pots Test Pot Allows simulation of a 4-20mA input. (Internal) Gas Detection (Australia) Pty Ltd Page 2 of 11 M-GDA-40125-06/08/2018... -
Page 3: Mounting Requirements
Mount the sensor as close as is practical to the potential source of the leak 20mm 10mm 91 mm 10mm 20mm 152 mm 6.9mm BACKLIT DISPLAY ALARM LEDS MUTE BUTTON SENSOR ////////////////////////////////////////////////// Ground /////////////////////////////////////////// Gas Detection (Australia) Pty Ltd Page 3 of 11 M-GDA-40125-06/08/2018... -
Page 4: Electrical Connections
24V DC RELAYS SHOWN DE-ENERGISED ALARM RELAYS ENERGISE ON Power Supply ALARM FAULT RELAY IS NORMALLY ENERGISED AND DENERGISES ON v +24 FAULT To Buzzer/ Flasher 4-20mA Output Down Sensor Connection Gas Detection (Australia) Pty Ltd Page 4 of 11 M-GDA-40125-06/08/2018... -
Page 5: Ancillary Equipment
Output Specifications: 90 db within 1M at 24V Connection: Free end wires (150mm black /red) Operating Temp Range: -10 ~45℃ Enclosure Material: ABS Plastic IP Rating of enclosure: IP55 Dimension: 122.2*72.8*43mm(L*W*H) Gas Detection (Australia) Pty Ltd Page 5 of 11 M-GDA-40125-06/08/2018... -
Page 6: Operation
1 has been muted the buzzer will sound, the LED’s will flash and the external buzzer activate. The Buzzer's can be muted by pressing the MUTE button on the front panel . Gas Detection (Australia) Pty Ltd Page 6 of 11 M-GDA-40125-06/08/2018... - Page 7 The setting and its current value is displayed on the screen. During setup no alarms will sound or relays activated except the Fault relay. After Setup is complete remove jumper link from board. Gas Detection (Australia) Pty Ltd Page 7 of 11 M-GDA-40125-06/08/2018...
- Page 8 When the Down button is held, the level will jump 20 steps. Alarm Operation: Latched, Unlatched Hysteresis: 2%, 5%, 10%, 20%, 40% Modbus Address: 0-127, 20 When the Down button is held, the address will jump 20 steps. Gas Detection (Australia) Pty Ltd Page 8 of 11 M-GDA-40125-06/08/2018...
- Page 9 NEVER ALTER THE SPAN POT AS THIS REQUIRES SPECIALISED EQUIPMENT AND WILL EFFECT THE SENSOR CALIBRATION AND ACCURACY . ***After Calibration or zero is complete remove the CAL jumper link from board.*** Gas Detection (Australia) Pty Ltd Page 9 of 11 M-GDA-40125-06/08/2018...
- Page 10 5. Turn the Pot to activate the relays / sounders and check against gas level displayed on the display 6. When testing is complete return the test link to the position shown. This is very important. If this is not undertaken the sensor will not detect gas. Gas Detection (Australia) Pty Ltd Page 10 of 11 M-GDA-40125-06/08/2018...
- Page 11 This product and operating manual are subject to change without prior notice for the improvement of product performance and ease of use. Gas Detection (Australia) Pty Ltd Unit K1, USQ, Baker Street Toowoomba, QLD 4350 PO BOX 597, Darling Heights, QLD 4350 +61 7 4613 5111 www.gasdetectionaustralia.com.au...