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CG1000-RTP OXYGEN ANALYZER
Follow these safety precautions when working on the sensor:
Basic Elements of the Sensor
The CG1000 analyzer consists of the following basic systems:
•
The Plumbing: All inlet and outlet tubing (cell housing). Also includes
the calibration gas inlet and aspirator assembly, with the aspirator
used to pull the sample into the sensor.
•
The Measuring System: Zirconium oxide cell.
•
The Temperature System: The electrical cell heater (furnace), sensor
case heaters, the type "K" thermocouple (maintains cell operating
temperature), and the sensor board containing cold junction compen-
sation. The sensing cell operates at a constant temperature. The circuit
board in the sensor terminal box switches power to the furnace from
the AC mains connected to the sensor. This board also provides cold
junction compensation to the thermocouple circuit.
Disconnect AC power from the analyzer before performing any main-
tenance or troubleshooting.
The furnace and furnace insulation cover are hot during normal oper-
ation (up to 500°F/260°C inside the furnace insulation cover). Allow
analyzer components to cool for at least an hour before working inside
the analyzer. Use caution and wear appropriate gloves when handling
components or when touching analyzer components near the furnace!
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Overview
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Troubleshooting
