Delta F Oxygen Cell - GE Moisture monitor series 3 Programming Manual

Delta F Oxygen Cell

Features and Capabilities
The MMS-3 standard oxygen measurement probe is the Delta-F Cell.
Overall oxygen content range measured using this cell is from 0 to
25%. You may choose from seven standard oxygen ranges. The
lowest standard range is 0 to 1/10/100 ppm; the highest standard
range is 0 to 25% oxygen. An ultra-low-range sensor that covers
0-500 ppb and is sensitive to less than 5 ppb is also available. The
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MMS-3 can also accept oxygen inputs from other GE Sensing oxygen
sensors using the auxiliary inputs.
If your application has a high concentration of acid-forming
components, GE Sensing supplies a STAB-EL option for the Delta F
Cell. The STAB-EL option is specially designed to effectively
neutralize these components from the sample gas stream.
The Delta F Cell is available in a general purpose model with both a
top and bottom drain, or only a top drain as shown in Figure 1-4
below. The Delta F Cell is usually installed in its own sample system.
The Delta F Cell is optionally available with VCR
in a NEMA-4X enclosure for weatherproof corrosion resistant
applications, or mounted in a NEMA-7 enclosure for hazardous areas.
The Delta F Cell is BASEEFA-approved, and when connected to a
BASEEFA-approved MMS-3, provides certified intrinsic safety. See
Chapter 3 of the Startup Guide, Specifications, for certification
numbers.
Bottom Drain
Figure 1-4: Bottom and Top Drain Delta F Oxygen Cells
March 2008
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fittings, mounted
Top Drain
1-5