PureAire Monitoring Systems, Inc.
5/25/07
20
5.3.2 Optional Calibration Equipment
The following equipment is available from PureAire to facilitate gas calibration:
Part Number Description
Quantity
PUMP2N
High Flow Sampling Pump
1
690100
Calibration Cap for “D” Type Sensor Cells
1
5.3.3 Initial Preparation
NOTE:
If the
Air Check
Lite
transmitter is a non-display model,
PureAire’s meter adapter (part number 690600) should be used. This allows the
operator to plug a VOM digital multimeter into the calibration port on the main
electronics board to read the gas concentration.
1.
If the instrument is connected to a controller, set the controller to
Standby mode to avoid accidental alarms.
2.
Remove the sensor (as outlined in section 5.1.1).
5.3.4 Zero Calibration
IMPORTANT:
This procedure should be performed under normal monitoring
conditions, without any of the target gas present..
NOTE:
PureAire’s Meter Adapter (p/n 690600) is required for (non-display)
transmitters. This allows you to use a VOM digital multimeter to read the gas
concentration display.
1.
Check the instrument’s gas concentration reading on either the local
display or the digital multimeter.
2.
If the display/multimeter does not read a steady “0,” adjust the zero
potentiometer on the sensor cell as required. A clockwise rotation
increases the display value, a counter-clockwise rotation decreases the
display value.
5.3.5 Span Calibration
CAUTION:
Be sure to observe all safety guidelines when generating and using
calibration gases.
Calibration Port
– permits
gas concentration readout
on non-display models.
Summary of Contents for Air Check Lite
Page 26: ...PureAire Monitoring Systems Inc 5 25 07 23 6 Drawings ...
Page 28: ...PureAire Monitoring Systems Inc 5 25 07 25 DQS cell Mounted to AirCheck Lite ...
Page 29: ...PureAire Monitoring Systems Inc 5 25 07 26 Membrane ...
Page 30: ...PureAire Monitoring Systems Inc 5 25 07 27 24VDC 3 wire is remote up to 1000 meters ...
