Analytical Industries GPR-1500 A Series Trace PPM Oxygen Analyzer - Manual (Page 11)

Advanced Instruments, Inc
11
5. Operation
Principle of Operation
The GPR-1500-A Oxygen Transmitter incorporates advanced galvanic fuel cell type oxygen sensors. These
sensors are very specific to oxygen and generate an electrical signal proportional to the amount of oxygen
present in a gas stream. The selection of a particular type of sensor depends on the composition of the
sample gas stream. Consult the factory for recommendation.
The transmitter is configured with two integral electronic PCB. The signal processing electronics PCB and
the power supply, signal output, and alarm relays PCB are housed in a metal enclosure. The two PCBs are
interconnected via a ribbon cable.
Clean all surfaces with a damp cloth to avoid electrostatic discharge.