Prostat PRS-812, Operation Manual, Page: 11 / 36

PRS-812 Resistance Meter
7
In
AUTO-MANUAL, the operator manually selects the initial resistance
range in decade increments. Once set, the PRS-801 starts the
measurement process from the preset resistance decade, rather than re-
zeroing itself for each measurement. This feature saves measurement
cycle time and extends battery life. In this mode the instrument
automatically controls test voltage, range and measurement electrification
period.
[2] RESISTANCE
RANGE SELECT. Two Triangular Arrow Buttons UP (

) and DOWN (

) select Resistance
Measurement Range in single orders of magnitude while in MANUAL or
AUTOMATIC/MANUAL modes
[3] TEST VOLTS Manual Selection of <10, 10 or 100 volts in MANUAL, selects initial test
voltage. MANUAL Test Voltage & Resistance Limits are as follows:
@ <10V : 0.1 TO <1.0E+04

(0.1

-< 10K

)
@
10V: 1.0E+02 TO <1.0E+09

(100

-< 1G

)
@
100V: 1.0E+05 TO <2.0E+14

(100K

-< 2T

) NOTE: Optimal
minimum measurement in MANUAL using 100 volts is 2.0E+05.
[4] RECORD/
RECALL
If REC is not displayed in the lower left corner of the LCD, pressing
RECORD/RECALL once turns Memory Register ON [ REC will then be
displayed in LCD]. If REC is ON and measurement data is stored in
memory, pressing RECORD/RECALL once will provide access to the
memory register. Pressing RECORD/RECALL successively will
calculate and sequentially display Minimum [MIN], Maximum [MAX] and
Average [AVG] of data stored in the Memory Register. If memory is ON
and register contains stored data pressing
RECALL will provide the
following information:
First Press RECALL : Provides access to data in
Memory
NOTE:
MEM XX Flashes in LCD indicating number of data points in the
register and the last measurement is displayed. Pressing DOWN (

) and
UP (

) displays other data points and their respective position in the
register is shown in the MEM XX section of the LCD.
Second Press RECALL : Displays MIN Data Point in Memory
Third Press RECALL : Displays MAX Data Point in Memory
Note: When displayed, OL [Over Level] indicates a
measurement greater than (>) 2.0x10
14
ohms, which is beyond
the measurement capability of the PRS-812.
Fourth Press RECALL : Displays AVG of all Memory Data Points