AMI Analyzer Manual
Analyzer Description
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Analyzer Description
Basic description:
Figure 4. Analyzer (closed)
The Watchdog measures oxygen in a flammable (or inert) gas stream down to under 0.1ppm. It is intended
for use in non-hazardous or Class 1 Division 2 areas when properly installed.
All components are contained in one compact enclosure. The sample system components are all integrated
into a “Cell Block” located behind the front panel on the right, and the electronics are contained on a single
circuit board also located behind the front panel, on the left. All the electrical connections are available
under a panel on the left side of the instrument.
The actual oxygen measurement is performed by an oxygen sensor located behind the cell cap on the right.
When the unit is reading oxygen in ppm levels, the LCD will be steadily on. It flashes for percent levels.
