Sometimes in the field it may be necessary to hard reset the Fluke 1750 PQM when communications cannot be established by your PC or other device. Using the procedure will factory reset the device and wipe all memory/settings, allowing you to re-establish communications.
Warning: This procedure involves breaking factory seals and should only be used in emergency situations when the meter cannot be sent to the factory for service as it will most likely void your warranty. Any data stored in the unit prior to performing this procedure will be erased, contact an authorized service provider if data needs to be recovered!!!
Before resorting to a hard reset, try to unplug the unit and allow the UPS to fully drain before plugging it back and try again. Try to communicate with both a PC via Ethernet, and a PDA via Bluetooth (if possible). Sometimes communications can be re-established after performing this “soft-reset”.
If all else fails, you can try this:
Factory Reset Procedure for Fluke 1750 Power Quality Analyzer
Step 1: Pull off yellow rubber footing on the bottom of the unit.
Step 2: Remove the (6) screws holding the bottom housing plate on.
Step 3: Remove the button battery cell from the circuit board.
Step 4: Press and hold the small reset button for 5 seconds, located next to the button battery housing.
Step 5: Replace the battery and bottom housing plate along with the yellow rubber footing.
Step 6: Plug in the unit and try to connect with a PC via Ethernet.
The Fluke 1750 PQM should now be fully reset and communicating. Date and Time setting will need to be changed, any data previously stored in the unit will be lost.