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Install
December 2022
Refer to the following sections and select the option that applies to your
transmitter configuration.
2.4.1
Reference air set option (only)
When no options or only the reference air set option is equipped, use the
following procedure to install the pneumatic system components.
Procedure
1. Refer to
2. Connect the dilution air flow meter output to the dilution air inlet fitting on
3. Install an air line between the instrument air outlet fitting on the electronics
4. Use one CO gas and two O
5. Connect the output of the test gas sources to the inlet port of the CAL GAS
44
Figure
2-11. Connect the reference air set (regulator/filter and
pressure gauge) to the instrument air inlet on the electronics housing and
to the inlet side of the dilution air flow meter.
the sensor housing.
housing and the tee fitting on the sensor housing.
CAUTION
Failure to use proper gases will result in erroneous readings.
Do not use 100 percent nitrogen as an O
We recommend using O
O
.
2
Do not use gases with hydrocarbon concentrations of more than 40
parts per million.
•
CO: 1000 ppm or up to 4 percent, balance air
•
O
low gas: 0.4 percent , balance N
2
•
O
high gas: 8 percent, balance N
2
flow meter. Install an air line between the flow meter outlet port and the
CAL GAS inlet fitting on the sensor housing.
low gas.
2
low gas between 0.4 percent and 2.0 percent
2
gases to calibrate the transmitter.
2
2
2
Manual
00809-0500-4880
Emerson.com/Rosemount
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