24
Rev. C / January 2012
PRS-812 Resistance Meter
Slide the Baery Buss Cut O to the OFF posion when the instrument is not in use, parcu-
larly during storage and transport to prevent unintenonal instrument power up, and during
baery replacement.
3. Press the Red buon to power up the instrument.
4. The instrument will conduct a self-test, check its LCD display and LED lights, and test the baer-
ies. If Baeries are acceptable will be displayed in the LCD (Figure 9).
5. is displayed in the LCD.
a. The default Mode for the PRS-812 is Automac Resistance Measurement in exponenal
format (1.0EXX).
b. If measurements are to be displayed in Ohms press the Gray buon once.
6. If is not displayed in the lower le corner of the Liquid Crystal Display (LCD), press Gray
buon once to display in LCD. This acvates the Memory Register, en-
abling data storage.
7. Press the Green buon to begin the measurement sequence. The instru-
ment will automacally set the resistance range to 0.1 Ohms (1.0E-01), and select <10 volts to
be applied to the Posive (+) Lead Terminal. The electricaon mer will start counng sec-
onds.
E. Measurements Less than 10,000 ohms (<1.0x10
4
ohms):
1. When the resistance measurement is less than 1.0x10
4
ohms, test voltage will remain at <10V,
the resistance range will be adjusted automacally and a stable resistance measurement will
be obtained within 2.0 to 3.0 seconds.
2. Once a stable measurement is conrmed and displayed by the instrument, will be ener-
gized in the LCD and the electricaon mer will stop.
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