Testing Xgm868I Hardware - GE DigitalFlo XGM868i Service Manual

Panametrics general-purpose gas flow transmitter (1 & 2 channel)
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B.5.3 Testing XGM868i Hardware
Using PanaView, you can check crucial elements of the XGM868i hardware: the EPROM, the NVR, the RAM, FIFO,
and the DAC. You can also:
program and test optional cards
read site checksums and calibration values
test and set the contrast for the LCD
set the number of channels (either 1 or 2), and
reinitialize the XGM868i to its default values.
Contact GE if the XGM868i fails any of the tests covered below.
IMPORTANT:
B.5.3a EPROM Test
To test the EPROM from the Calibration/Test menu:
1. From the left pane of the Calibration/Test window, double-click on Hardware Test.
2. In the center pane, double-click on EPROM TEST.
3. The right pane displays the EPROM Sum Value. Click [Next Item] or [Exit Page] to return to the Hardware Test
option, and [Exit Page] again to return to the main Calibration/Test menu.
B.5.3b NVR Test
1. From the left pane of the Calibration/Test window, double-click on Hardware Test.
Note: If you are in the Hardware Test option, skip to step 2.
2. In the center pane, double-click on NVR TEST.
3. A message in the right pane cautions that the test will take several minutes, and that interrupting the test may
corrupt the memory. Click [Next Item] to continue the test.
4. If the NVR passes the test, the screen appears similar to Figure 15 on page 56. Click [Exit Page] to return to the
Hardware Test option, and [Exit Page] again to return to the main Calibration/Test menu.
DigitalFlow™ XGM868i Service Manual
Appendix B. Calibration and Testing with PanaView
55

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