ATI Technologies B12-69 Instrukcja obsługi - Strona 11
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WET OXIDANT GAS SENSOR ASSEMBLY
Wet oxidant sensors require service prior to operation. Sensors are shipped dry. Prior to start-
up, a new membrane must be installed and the sensor must be filled with electrolyte. Figure 8 shows an
exploded view of the sensor.
Figure 8 - Wet Oxidant Gas Sensor Assembly (ATI-0265)
Follow the procedure below to prepare the sensor for operation:
1. Unscrew the electrolyte chamber from the assembled sensor and also remove the fill screw and o-
ring from the side of the sensing element.
2. Remove the front nut from the bottom of the chamber and discard the protective membrane. O-rings
are contained in grooves on both the bottom and top of the chamber. Be sure that these o-rings
remain in place.
3. From the package of membranes supplied with the sensor, place a new membrane into the front nut.
The membrane is the white disk and is separated from other membranes by a blue paper
spacer.
4. Screw the front nut onto the chamber until you feel the o-ring compress. Hand tight compression is
all that is needed. Do not use tools to tighten. The membrane should be flat across the bottom of the
chamber without wrinkles.
5. Fill the chamber with electrolyte until the level is about ½" above the bottom of the internal threads in
the chamber.
O & M Manual
Rev-G, 7/15
SENSING ELEMENT BODY (02-0016)
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