CPU module Type 2 and Type 4Figure 3-11:
A. CPU Module Type 2 - side label
B. CPU Module Type 4 - side label
4. Grasp the outer ends of the module you want to replace and pull it out of the
enclosure.
5. Insert the new CPU Module or I/O Module into the enclosure and firmly push until
the board is fully seated into the Backplane Board connectors and the lock is
engaged.
6. Replace the terminal blocks for the CPU Module and/or the Optional I/O Module and
verify the tightness of the terminals with a 3 mm flat blade screw driver.
7. If you are not replacing other electronics, replace the end cap and security latches
(requires a 3 mm Allen wrench). If required, install the security seal wire into and
through one of the two holes in the end cap. Choose holes that minimize
counterclockwise through one of the two holes in the end cap. Choose holes that
minimize counterclockwise rotation of the end cap when the security wire is taut
(maximum wire diameter.078 inch; 2.0 mm).
Meter repairs
34 Gas Ultrasonic Flow Meter
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