7 Maintenance
7-3. Gas calibration method
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SD-2600
7-3. Gas calibration method
Perform a gas calibration in each mode (zero adjustment mode and span adjustment mode) using the
calibration gas.
Zero adjustment gas
Span adjustment gas (collected in a gas sampling bag)
Gas sampling bags
<Zero Adjustment "2-1">
This is used to perform the zero adjustment.
NOTE
If the zero calibration failed since the zero point was significantly fluctuated from around zero, it returns to
2-1 after FAIL rather than PASS is displayed. In this case, the zero adjustment has not been completed.
Flow meter
Gas calibration adapter
SD-2600 gas monitor
IN
OUT
Gas
sampling
bag
Needle valve
Pump
1.0 ± 0.2 L/min
Gas
sampling
bag
for exhaust
2-1
Press the SET key.
Return to 2-1.
Current Concentration Value Display
Press the SET key to perform the
zero adjustment.
Under Zero Adjustment (CAL. is displayed)
Wait for a while until the adjustment is
completed.
Zero Adjustment Completed
It automatically returns to 2-1 after
PASS is displayed.
* If the zero adjustment failed, it
automatically returns to 2-1 after
FAIL is displayed.
Return to 2-1.
LED
