9.4Replacing Electronics Module or PROM, Continued

Procedure, continued

Table 28 Replacing Electronics Module or PROM, Continued

Step

8

9

Action

With component side of new PWA facing you, align notch and pin 1 of PROM removed in Step 6 with notch and pin 1 in IC socket on new PWA. Carefully plug PROM into socket. Go to Step 11.

Pin 1

Notch

Main PCB

ATTENTION

If the new electronics module has the write protect

 

option, be sure to check that the write protect jumper is in the desired position. See the Write protect option in Section 5.4 of this manual for details.

Verify that 10-digit identification number on label under new PROM matches PROM ID number stamped on meter body nameplate. If PROM numbers don’t match, you must order a new PROM specifying PROM number from meter body nameplate.

Continued on next page

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Image 118
Honeywell SMV 3000 user manual Main PCB If the new electronics module has the write protect