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6. Test the resistance of junction box terminal pairs.
a. Test the brown terminal against all other terminals except the red one.
b. Test the red terminal against all other terminals except the brown one.
c. Test the green terminal against all other terminals except the white one.
d. Test the white terminal against all other terminals except the green one.
e. Test the blue terminal against all other terminals except the gray one.
f. Test the gray terminal against all other terminals except the blue one.
g. Test the orange terminal against all other terminals except the yellow and violet
ones.
h. Test the yellow terminal against all other terminals except the orange and violet
ones.
i. Test the violet terminal against all other terminals except the yellow and orange
ones.
There should be infinite resistance for each pair. If there is any resistance at all, there
is a short between terminals.
Postrequisites
To return to normal operation:
1. Plug the terminal blocks into the terminal board.
2. Replace the transmitter housing cover.
3. Replace the lid on the sensor junction box.
Important
When reassembling the meter components, be sure to grease all O-rings.
Troubleshooting
190 Micro Motion
®
9739 MVD Transmitters