Carel GDSBI20C00 - Calibration via Modbus Communication

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ENG
Gas Leakage Detector +0300047IE rel 1.1 - 26.04.2023
Maintenance
4.4 Calibration via Modbus® communication
Place the sensor in clean air and wait for the warm-up phase to be completed at the end of the start-up phase. Enter the Tech-
nician password to access the device (2222 to register 205).
Send 1 to ZeroCalibration (coil 407) to perform the fresh air calibration. If coil 407 is read as 0 after calibration, it means that
calibration was successful.
Send the span gas concentration to the SpanConcentration variable (holding register 655).
Supply gas to the sensor. Use the calibration kit and a 0.5 l/min airow regulator. Wait around 1 minute until the concentration
is stable.
Send 1 to SpanCalibration (coil 408). Read as 0 to conrm the calibration was successful.
4.4.1 Diagram of the calibration procedure
Eseguire
calibrazione
dello zero
Eseguire
calibrazione
span
Eseguire
calibrazione
span
Eseguire
calibrazione
dello zero
Automatico a 0
quando il sensore
viene sostituito
t
Span Calibration
Zero Calibration
Service Due
Days since Service
Sensor Expired
Sensor Days
of Operation
Max days to service
autoset 0
Max days to service
autoset 0
Max Days to Service Max Days to Service Lifetime Sensor