Operation; Power; Connecting Voltage Cables; Datalogging - Extech Instruments SD910 User Manual

3. Operation
Power
1. Install six (6) 1.5VAAA batteries. The batteries provide backup power for the clock.
2. Connect the AC/DC power adaptor to the DC 9V input on the meter. The power adaptor is
required for data logging.
3. When the
However, in‐spec. measurements may still be made for several hours, after the low battery
indicator appears.
Connecting Voltage Cables
1. Connect the voltage wires to the plug as shown and then
insert the plug into the sockets on the bottom of the
datalogger (observe polarity)
2. Up to three cables may be installed.
3. The voltage for the inserted cables will be displayed 1, 2,
and 3 from top to bottom.
4. 0.00 will be displayed for open or unused inputs.
Datalogging
1. Open the left side door and insert a formatted SD card
Notes
 The SD card should be 1GB to 4GB in capacity.
 Do not use memory cards formatted by other meters or cameras. Use the SD card
formatting procedure under the advanced features section of this manual to correctly
format the card.
 The internal clock must be set to the correct time. See the advanced features section of
this manual to set the clock.
 The default data structure uses a decimal point "." as the numeric decimal indicator. See
the advanced features section of this manual to change this to a comma ",".
 If the SD memory card is not installed, "EMPTY" will appear in the display.
 If the voltage cable is not installed, random numbers may appear in the data file.
 If the voltage cable is not installed, after data download the e units symbol may not
appear in the display.
icon appears in the display the batteries are weak and should be replaced.
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