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Prostat PRS-812 User Manual

Prostat PRS-812
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22
Rev. C / January 2012
PRS-812 Resistance Meter

To prevent electrical shock, Do Not Touch energized circuits, leads or xtures while grounded.
Use pre-tested ground connecons meeng local safety codes for personnel earth grounding.
Refer to Naonal Electrical Codes and ESD Associaon Standard S6.1 Grounding for informaon
and procedures. Only qualied personnel should conduct ground test measurements.
2. Use only Prostat test leads, cables and accessories supplied with the PRS-812. Be sure that
leads are properly connected to their respecve terminals as described below.
a. The 10-foot general measurement leads are custom made of high quality, silicon rubber for
maximum insulaon properes and measurement accuracy. These leads are intended for
general measurements up to 10
12
ohm range. Shielding is not incorporated in the 10-foot
lead construcon.
(1) When installed in the PRS-812 terminals, be sure the right angle sheathed banana
connecons are fully inserted and posively seated for full terminal contact.

Do not apply excessive force when mounng leads on the terminals to prevent
deformaon or damage to the terminal circuit board.
(2) The straight, retractable-sheathed banana plugs are intended for connecon to
measurement electrodes, xtures or clip accessories.
(3) The red lead should be installaed in the posive (+) terminal and the black lead in
the negave (-) terminals.
3. When making measurements in the manufacturing environment, move the instrument and
test leads away from power cables and heavy electrical equipment to prevent electromagnec
interference.
4. If groundable xtures are employed for material measurements, and when using 10-foot leads,
aach an auxiliary lead from the xture to an ESD safe earth ground.
5. Prior to making precision measurements, allow the PRS-812 to warm-up for 3 minutes, then
perform the Low Resistance Calibraon procedure. If several measurements are to be made,
periodically check the instruments calibraon using the supplied calibraon shunt.
C. Operaon in AUTOMATIC Modes
The PRS-812 was designed to simplify measurement standards and general rules for making wide
range resistance measurements. The PRS-812’s  mode controls the crical aspects
of Test Voltage, Resistance Range, and Electricaon Period to meet ESDA Standard ANSI/ESD
STM11.11 Surface Resistance, and other requirements. Most measurements can be performed in
AUTOMATIC, which has two funcon modes:

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Prostat PRS-812 Specifications

General IconGeneral
BrandProstat
ModelPRS-812
CategoryMeasuring Instruments
LanguageEnglish

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