7
Rev. C / January 2012
PRS-812 Resistance Meter
3. The PRS-812 displays resistance Measurements in several ways:
a. 14 factory programmable LED’s each represenng one order of magnitude from <10
3
to
>10
12
ohms. LED’s have three colors, including:
The PRS-812 provides very accurate measurements up to 1.0x10
12
ohms, and
has the capability to display values up to 2.0x10
14
ohms. However, the user
should be aware that accuracy degrades rapidly above 1.0x10
12
ohms.
b. The large Liquid Crystal Display (LCD) includes an analog (1 - 10) scale and X1, X10 and X100
mulplier indicaon for measurement in Ω, KΩ, MΩ, GΩ and TΩ.
c. Digital measurements are provided using integers and Ω, KΩ, MΩ, GΩ, TΩ indicators, or in
exponenal format (1.0EXX) with Ω -TΩ indicators.
4. The PRS-812 includes data logging (storage) capabilies for up to 80 data points when
is selected. The instrument will provide access to the memory register, calculate and display
Minimum, Maximum and Average of all measurements in the instrument’s memory whenever
is selected.
As with any electrical device, use proper safety precauons and safe measurement procedures to
avoid personnel shock and arc discharge.
A. The PRS-812 Resistance Meter is baery operated and delivers test voltages up to 100 volts.
Only use alkaline baeries in the PRS-812.
B. The instrument is current limited for safety, however, if improperly used it may be capable of deliv-
ering an annoying shock to a person touching conductors energized by the PRS-812, parcularly at
100 volts.
C. While current limited, a hazard exists in personnel reacon to a potenal shock.
D. To avoid personnel shock, follow the General Operaons instrucons at all mes. Do not touch
energized electrodes or xtures when power is applied except as specically described in this and
accessory instrucons.
E. Do not operate or store the instrument in damp environments or wet condions.
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