Wiring The Analyzer - GE CGA 351 User Manual

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Wiring the Analyzer

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Installation
The system components which are housed in the sensor enclosure
have already been wired at the factory. These include:
•
oxygen sensor (TB2)
•
thermocouple (TB2)
•
sensor furnace (TB2)
To completely wire the CGA 351 zirconia oxygen analyzer, the
following items must be connected:
•
serial port (TB1)
•
analog output (TB1)
•
alarm relays (TB1)
•
line power (TB3)
Refer to the wiring diagram shown in Figure 2-2 on page 2-10, while
completing the instructions presented in this section.
!Attention European Customers!
In order to meet CE Mark requirements, all cables must
installed as described in Appendix B, CE Mark Compliance.
IMPORTANT:
For compliance with the European Union's Low
Voltage Directive (73/23/EEC), the CGA 351
requires an external power disconnect device such as
a switch or circuit breaker. The disconnect device
must be marked as such, clearly visible, directly
accessible, and located within 1.8 m (6 ft) of the unit.
To ensure safe operation of the CGA 351, the unit must be
installed and operated as described in this manual. Also, be
sure to follow all applicable local safety codes and
regulations for installing electrical equipment. In addition,
all procedures should be performed by trained service
To access the terminal printed circuit board, remove the cover below
the digital display panel, which is fastened with six (6) Phillips head
screws. The PC Board has terminal blocks TB1 (12 connections),
TB2 (8 connections), and TB3 (3 connections) mounted on it.
Proceed to the appropriate sub-section to wire each of these terminal
blocks.
!WARNING!
personnel.
December 2004
2-5