
OPERATION GA-40 T plus
34
œ
CALIBRATION
1 WITH CO GAS
•
2 WITH NO GAS
•
 and à - move the cursor to the sensor to be calibrated
Á - select the gas
The individual lines have the following meanings:
G SIGNAL - the actual signal, supplied by the sensor
G STORED -the signal value stored at the last calibration
G GAS [ppm] - the concentration of the standard gas
œ
CALIBRATION: NO
Sensor Signal Stored
CO 21 22
NO 1206 1208
GAS [ppm]: 402
* STORE *
ENTER - in the GAS [ppm] line, starts editing of the standard gas concentration
0 to 9 - enter the concentration of the standard gas [ppm]in the line GAS [ppm]
ENTER - in the GAS [ppm] line. Confirm standard gas concentration.
Supply the instrument with standard gas for about 4 min.
ENTER - in the STORE line, as soon as the value has stabilised, stores the measured value as
calibration value.
Disconnect the standard gas and flood the instrument for at least 15 min with ambient air
À - return to select the next gas, or end the calibration
5.9.3 Settings
This option allows the user to adjust some of the standard settings.
 and à - move the cursor to the option DEVICE SETTINGS
Á - select the option
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