Installing The Probes; Moisture Probes - GE moisture.iq User Manual

1.8 Installing the Probes

After you mount the sample system, you must insert the moisture probes into the sample cells. In addition, you
must check, prepare, and connect any installed oxygen cells to the gas line.

1.8.1 Moisture Probes

BHGE Moisture Image Series (MIS) and M-Series moisture probes have 3/4 inch-16 straight threads, with an
O-ring seal, to the secure probes into the sample system or directly into the process line. Other fittings are
available for special applications.
CAUTION! If mounting the moisture probes directly into the process line, you must consult BHGE for
proper installation instructions and precautions.
Moisture probes are usually installed into a sample system. The sample system protects the probes from
coming into contact with damaging elements in the process. Moisture probes are installed into a cylindrical
shaped container, called the sample cell, which is included as part of your sample system. The sample cell is
identified by a label on the sample system plate.
To install a moisture probe that has a 3/4 inch-16 straight thread, insert it into the sample cell so it is
perpendicular to the sample inlet. Screw the probe into cell, making sure not to cross thread it, and tighten it
securely. Figure 4 below shows a typical moisture probe installation, with the probe mounted in a BHGE
sample cell. Install any moisture probes with different fittings in the appropriate manner.
Note: Standard moisture probes have a sintered stainless steel shield that protects the aluminum oxide sensor.
Be sure to leave the shield in place for maximum protection.
It is important to eliminate all gas or liquid leaks for safety reasons and to ensure that measurements are not
affected by ambient contamination. For gas applications, you should check for leaks using a soap bubble
solution.
IMPORTANT: Refer to the Calibration Data Sheets to connect the probes to their corresponding channels. If a
probe is connected to the wrong channel, the meter will display incorrect data.
moisture.IQ User's Manual
Inlet
Outlet
Figure 4: Typical Moisture Probe in Sample Cell
Probe
Sample Cell
Chapter 1. Installation
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