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Rev. C / January 2012

PRS-812 Resistance Meter

c. Press  to restart the Test Cycle

d. Repeat the , Resistance Range adjustment and TEST sequence unl a stable measure-

ment is displayed

8. If the resistance is lower than the selected decade,  (Under Level) will be displayed. To move

the selected resistance range down to a lower decade:

a. Press  once to stop the Test Cycle. This does not add  to Memory.

b. Press MANUAL RESISTANCE RANGE SELECTION down arrow () to select the desired de-

cade; the appropriate LED will illuminate indicang the current selecon

c. Press  to restart the Test Cycle

d. Repeat the , Resistance Range adjustment and  sequence unl a stable measure-

ment is displayed

K. Resistance Measurements in the L MODE of OPERATION

To select  in either Exponenal (Mode 5) or Ohms (Mode 6) Display, use the

 buon to toggle through choices.  is used for a variety of

applicaons where one desires to reduce Measurement Test Cycle me by overriding Automac

reset-to-minimum funcons. It is intended for applicaons where:

→ Mulple Measurements where magnitude is expected within a range of two or three de

cades, and test voltage must vary with actual resistance measurements.

→ When  electricaon period and Test Voltage control must be maintained to

current industry (and Automac Mode) sengs

This mode prevents the PRS-812 from reseng the Test Voltage and Resistance Range to Mini-

mum at the beginning of each Measurement Test Cycle. In this mode, measurements start at the

resistance range selected by the operator, and its commensurate Test Voltage, or the value of the

last measurement Otherwise, it is used similar to the  Mode.

The following summarizes  Mode Operaons and assumes that test leads

are properly connected.

1. Slide Baery Buss Cut O switch to  posion

2. Press Red  buon once to power up the instrument.

3. Select  by pressing the  select buon unl  and

 appear in the LCD display.

a. Pressing the  buon four (4) mes selects  Exponenal dis-

play (1.0EXX).

b. Pressing the  buon ve (5) mes selects  display in Ohms.

4. Set RESISTANCE RANGE SELECTION using the UP () and DOWN () arrow keys.

Prostat PRS-812 User Manual

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