Maintenance; Software For Pc - Extech Instruments EM100 User Manual

Additional Notes
The connected loads should be operated normally when running a cost forecast. If an
exact cost forecast is to be made per month and year, Extech recommends leaving the
Energy Logger SD connected to the load for at least one day. The Energy Logger SD
can thereby calculate an average power/ load and accrued costs more accurately. The
longer the Energy Logger SD is connected, the more accurate the cost forecast.
The power delivered from a utility company is never completely stable and varies from
place to place. For example, a voltage fluctuation of 1% per second for a calculated cost
forecast over 5 minutes will never be as accurate as a cost forecast taken over 3 hours.
Note that some devices use more current than others immediately after switching on.
The current usage decreases the longer the device is in use.

Maintenance

•
Regularly inspect the instrument and SD card for damage
•
To clean the device and LCD use a dry, soft cloth only. Do not use cleaning solutions
•
Never immerse the device in water
•
Maintenance or repairs may only be performed by a technician familiar with associated
regulations
Replacing the Battery
The Energy Logger requires a cell battery type CR1620 which has a lifespan of approx.
three (3) years. The battery is used to power the internal real time clock while the unit is
powered off.
1. Turn the battery compartment screw and remove the battery compartment cover.
2. Remove the used battery from the instrument and replace it with a new one of the
same type. Observe correct polarity when inserting the battery.
3. Replace the battery compartment cover and refasten the screw.
NOTE: Change the battery within 2 minutes to ensure that the real time clock does not
reset. Check the date and time after replacing the battery and reset if necessary.
Replacing the Fuse
1. Remove the three Philips head screws surrounding the 120V plug on the rear.
2. Remove the socket housing and lift the socket on the front of the device.
3. Remove and replace the fuse.
Caution: Use only the proper size fuse.

Software for PC

PC Software is supplied allowing the user to transfer data from an SD card to a PC. (An
SD card reader to PC hardware device is not included and must be obtained separately).
The supplied software also displays recorded data, performs calculations, and permits the
storage of data and configuration settings.
Instructions on the use of the software are included in the program's HELP utility. Install
and run the software to access the HELP utility.
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EM100 V2.0 07/09