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On the calibration interface menu, choose 2 SPAN CAL, and then enter into
the span calibration interface, put into the concentration value when calibration,
such as, 60PPM, when the value is steady, press confirmation, and the span
calibration is completed.
Span calibration
Note:
1. If the machine has not been used for a long time, the zero may be
have some excursion, at this time, enter into the zero calibration interface, make
the zero cleaning operation. This operation is made on the situation that there is no
object gas.
2. The span calibration needs the participation of the object gas, if customer
does not have the object gas, please do not make this operation.
3. If the inaccuracy of the calibration value is caused by your wrong
operation, you can enter into the factory interface, and make the restoring factory
setting, and then enter into the zero calibration interface to make zero operation.
3.5.4. Pump switching setting
This machine has the high-performance pump. After entering into the pump
