Multi Gas Clip Simple Plus User’s Manual
UM MGC-S-PLUS v1.00a
Portable gas detectors you can count on
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Calibration
The detector can be configured to keep track of regular calibration intervals in a Calibration Log. The interval can be set
using the GCT IR-Link software. When a calibration comes due, or if the last calibration has failed, then the detector’s
display will continually flash “CAL DUE” until the detector has been successfully calibrated. Performing a calibration that
will be recorded in the Calibration Log can be done either automatically (insert the detector into the MGC Simple Clip
Dock), or manually (apply gas according to the Manual Calibration Instructions described below).
Manual Calibration Instructions
To enter the Manual Calibration mode, continuously hold down the Power/Menu Button. Release the button
when the “ZERO OK” message appears. The detector will first automatically zero the sensors at the current
baseline reading, then the “APPLY GAS” prompt will appear. Display will show:
Once the screen displays “APPLY GAS”, clip the MGC-S Calibration Cap (provided with the detector) into place
over the sensor ports. Apply gas to the detector at a flow rate of 0.5 LPM and do not disturb while calibration
is being performed. Sensor readings will be displayed as the gas is detected and as the detector adjusts the
calibration parameters. Once calibration is complete, the detector will display the next calibration date before
returning to normal (alarming) operation. If a sensor fails to calibrate, the detector will display “ERROR” (an
error message for the failed sensor). Check your gas connections and concentration before attempting a
second calibration.
If a sensor fails to calibrate after a second attempt, contact GCT for assistance
.
Auto Zeroing
To Auto Zero the detector, enter Manual Calibration mode as described above. Once the screen displays "APPLY GAS",
briefly press the Power/Menu Button. The screen will then display "CAL ABORT" followed by the number of days
remaining before the next set calibration date. The detector has been successfully auto zeroed and returns to normal
operation.
Auto Zero the detector only in a known clean air environment .
DO NOT Auto Zero in temperatures above or below the specified range of 0°C to 40°C .
Retest
To attempt recovery from sensor "Err", continuously hold down the Power/Menu Button during count downs. Release
the button when the "RETEST OK" message appears. The detector will retest sensors and auto zero the detector. Auto
Zeroing precautions apply.
Under no circumstances should a detector displaying "Err" be used .
Storage
Store the detector in a safe, dry place between 32°F and 77°F (0°C and 25°C).
Review the warranty period and the “Activate before . . ." date that is printed on the product box label .
Release
Power/Menu Button
