3-2 | Thermox TM 2000 Oxygen Analyzer
Mechanical Installation
This section describes how to perform the mechanical installation portion
of the system installation. This includes the following:
• SensorMounting
• SampleGas/CalibrationGasPlumbing
- Sample Gas/Calibration Gas Requirements
- Pressure and Flow Requirements
- Plumbing Option
• CleanGasRemoteCalibrationUnitInstallation
Sensor Mounting
The TM2000 sensor enclosure is a NEMA 3R (IP54)-rated, polyurethane-
coated carbon steel cabinet that can be mounted on a wall or a pole.
Figure 3-1 provides mounting dimensions and the location of the sample
inlet for a standard TM2000 sensor. Figure 3-2 shows mounting dimen-
sions and the location of the sample inlet for a TM2000 sensor with the
sample bypass option.
The sensor should be mounted as close to the sampling system as pos-
sible. This improves the response time of the sensor, and also reduces the
chances of condensing moisture reaching the sensor. The ambient tem-
perature range for the sensor is -18° C to 50° C (0° F to 122° F).
Sample Gas/Calibration Gas Plumbing
This section describes how to plumb sample gas and calibration gases
to the TM2000. How you do this depends on the options ordered for
the TM2000 sensor, including whether you ordered a Clean Gas Remote
Calibration Unit (RCU) or the sample bypass option. It also provides
important guidelines for users measuring in the low PPM oxygen ranges.
Regardless of your setup, you must provide a means to switch between
your sample gas and the calibration gases so you can calibrate the TM2000
analyzer. You can either use your own valve or the factory-provided RCU
to switch between these gases.
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