Baker Hughes Panametrics oxy.IQ, Руководство пользователя

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Chapter 2. Installation
8 oxy.IQ User’s Manual
2.3 Installing an Oxygen Sensor
To install a new or replacement oxygen sensor in the oxy.IQ, refer to figure 6 below and complete the following steps:
Figure 6: Oxygen Sensor Installation
1. Disconnect the power from the oxy.IQ.
2. Loosen the blue knurled nut and remove the oxy.IQ electronics module from the sensor manifold. If a previous
oxygen sensor is already in place, remove and discard it.
3. Apply power to the unit. The screen will display “INITIALIZING PLEASE WAIT” for a few seconds before it begins to
display measurement data.
Note: Before continuing with the installation, become familiar with the procedures for programming and
calibrating the oxy.IQ discussed in Chapter 3, Initial Setup and Operation.
4. Trim the 4-20 mA analog output and set the range to 0-25% oxygen.
5. Open the airtight package (see figure 3) and remove the oxygen sensor from the package. To maintain the
oxygen sensor’s energy level, remove the red grounding tab and immediately install the sensor in the oxy.IQ
6. Orient the sensor so that its gold-plated electrodes are facing the spring-loaded contact pins in the sensor base
(see figure 6). Firmly press the oxygen sensor into the sensor base at the bottom of the oxy.IQ electronics module.
7. Perform an air calibration on the new oxygen sensor at this time. On the 0-25% oxygen scale, a properly
calibrated oxygen sensor shows a reading of 20.9% on the display and generates a current of 17.4 mA at the 4-20
mA analog output terminals.
8. Using the blue knurled nut, attach the oxy.IQ electronics module with the calibrated oxygen sensor to the sensor
manifold. Rotate the display as desired and then hand-tighten the blue knurled nut.
IMPORTANT: Make sure that the o-ring on the top of the sensor manifold is in place and undamaged. If necessary,
contact Panametrics for a replacement.
9. Begin the flow of the process gas. The analog output reading will drop as the oxygen sensor adjusts to the
reduced oxygen level. During this time, reset the range as required.
10. For improved accuracy in the ppm oxygen ranges, a span gas calibration should now be performed (see “span
gas calibration”).
IMPORTANT: Sensor life is dependent on the application. High oxygen concentrations and contaminants such as
acidic gases will shorten the sensor life.
Oxygen Sensor Ring
Knurled Nut
Sensor Base
Sensor Manifold