Carel GDSBSMXC00 - Device Operation; Power On and Start-up

12
ENG
Gas Leakage Detector +0300047IE rel 1.1 - 26.04.2023
Operation
3. OPERATION
3.1 Power on
When power is connected, the device begins the start-up cycle, divided into two phases:
• start-up
• warm-up
The start-up sequence lasts around 20 seconds, during which the main functions of the gas detector are initialised and veri ed.
In this phase, the LEDs on the front panel are activated in sequence, and the device cannot yet be used.
At the end of the start-up sequence, the warm-up phase commences, during which the sensor output signal is adjusted and
stabilised. In this phase, the device can be used to detect gas and installation can be completed via the rotary switch, app or
supervisor; nonetheless, the measurement is less reliable and calibration is not possible.
During the warm-up phase, the green LED  ashes around twice every second. The duration of the warm-up phase depends on
the sensor technology used:
• Semiconductor = 5 min
• Electrochemical = 5 min
• Infrared = 2 min
The sensors may take longer to warm up than speci ed; in these cases, do not take any action, wait for the device to stabilise.
The time required for complete stabilisation of the device may vary depending on the type of gas and installation.
3.2 Device operating states
The CAREL GLD series gas detectors provide visual indications of their current operating status, in addition to the relay outputs.
Visual indication of device operating status is provided by three LEDs (green/red/orange).
Device status and the corresponding outputs are shown in the following table:
Relay Warning Fault mode not enabled
Status LED Warning/Fault relay Alarm relay
Warm-up
OFF OFF
Normal
OFF OFF
Bluetooth
OFF OFF
Serial connected Internal LED W8 on steady --- ---
Warning delay active
OFF OFF
Alarm delay active
ON OFF
Warning
ON OFF
Alarm
ON ON
Fault
ON ON
Tab. 3.a
If relay failsafe mode is active, the relay activation logic is reversed.
Device status and corresponding outputs, relay Relay Warning Fault mode enabled
Status LED Warning/Fault relay Alarm relay
Warm-up
OFF OFF
Normal
OFF OFF
Bluetooth
OFF OFF
Serial connected Internal LED W8 on steady --- ---
Warning delay active
OFF OFF
Alarm delay active
ON OFF
Warning
OFF OFF
Alarm
OFF ON
Fault
ON OFF
Tab. 3.b
Key:
Key:
= LED on steady
= LED  ashing