PureAire Air Check Lite, Инструкция по эксплуатации

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PureAire Monitoring Systems, Inc.
5/25/07
12
4.3.1 Routine Visual Checks
Items to check
Check for power and proper operation
Condition / status when
operating properly Unit should be outputting a 4 mA signal when no
gas is present. On instruments with a digital
readout, display should also show 0 when no gas
is present.
Corrective actions If analog signal (or digital display) is higher than 4
mA in a zero gas condition, adjust as required to
the environment
4.3.2 Recommended Routine Maintenance Schedule
Routine Visual Checks Monthly
Electrolyte Replacement Every 6 months*
Sensor O-ring and Membrane Replacement Every 6 months*
Sensor Calibration Every 6 months
* Hydrogen cell can operate 1-2 years between recharges.
4.4 Loss of Power Indicator
In the event the Air Check

Lite loses VDC power, the 4-20 mA analog output signal drops to
0.