Removing / Replacing The Relay Pca From The Instrument - Teledyne T200 Operation Manual

Teledyne API – T200 NO/NO
/NO Analyzer Operation Manual Troubleshooting & Service
2 X
12.8.6. REMOVING / REPLACING THE RELAY PCA FROM THE
INSTRUMENT
This is the most commonly used version of the Relay PCA. It includes a bank of solid
state AC relays. This version is installed in analyzers where components such as AC
powered heaters must be turned ON & OFF.
A retainer plate is installed over the relay to keep them securely seated in their sockets.
Retainer
Mounting
Screws
AC Relay
Retainer Plate
Figure 12-10: Relay PCA with AC Relay Retainer In Place
The Relay retainer plate installed on the relay PCA covers the lower right mounting
screw of the relay PCA. Therefore, when removing the relay PCA, the retainer plate
must be removed first.
Mounting
Screws
AC Relay Retain Occludes
Mounting Screw on
P/N 045230200
Figure 12-11: Relay PCA Mounting Screw Locations
06858E DCN7057
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