7. Maintenance
7-3. Calibration method
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7-3. Calibration method
Perform a calibration in each mode (zero adjustment mode and span adjustment mode) using the
calibration gas.
Zero adjustment gas (collected in a gas sampling bag)
Calibration gas (collected in a gas sampling bag)
Gas sampling bag for exhaust gas
<Zero Adjustment "2-1">
This is used to perform the zero adjustment.
NOTE
Before starting the zero adjustment, let the gas detector draw the zero adjustment gas and wait until the
reading is stabilized.
PW A1 A2 F
LCD
2-1. ZERO
Press SET key.
●
○
○
○
2- 1
ZERO
MAINTENANCE
↓
Current Concentration Value Display
Press the SET key to perform the zero
adjustment.
●
○
○
○
1.1 ppm
ZERO SET
MAINTENANCE
↓
Zero Adjustment Completed
The menu returns to 2-1. ZERO
automatically.
●
○
○
○
0.0 ppm
ZERO OK
MAINTENANCE
↓
Return to 2-1. ZERO
Rear side
Calibration
gas
Exhaust
gas
GAS IN
GAS OUT
WARNING
After the adjustment is completed, never
fail to press the MODE key to return to the
detection mode.
WARNING
When the zero adjustment is performed in the atmosphere, check the atmosphere for freshness before
beginning the adjustment. If interference gases exist, the adjustment cannot be performed properly,
thus leading to dangers when the gas leaks.
