D048-50-880 Issue E
Page 18
© Edwards Limited 2013. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
MAINTENANCE
1. Switch off the electrical supply and remove the electrical supply connector from the gauge.
2. Using a suitable screwdriver, remove the four M3.5 screws from the top of the gauge.
3. Remove the gauge lid, ensuring the pin on the underside of the lid is not bent.
4. The fuse will now be visible on the PCB. Hold the board down and then pull the fuse from it’s fuseholder using
an appropriate tool (for example, a small pair of pliers).
5. The replacement fuse is supplied mounted in a fuseholder. Remove the new fuse from its fuseholder and discard
the new fuseholder.
6. Push the new fuse into the fuseholder on the PCB.
7. Refit the gauge lid ensuring that the pin is fitted in the shrouded earth socket next to the main connector. Refit
the four M3.5 screws.
8. Apply power to the gauge and check that the LED is illuminated.
Replacement fuses are available from Edwards. Refer to
.
5.4
Calibration Service
A calibration service is available for all Edwards gauges. Calibration is by comparison with reference gauges,
traceable to National Standards. Contact Edwards for details.
Figure 6 - Fuse Replacement
1
2
1.
Fuse holder
2.
Shrouded earth socket
