PRS-812 Resistance Meter
15
9. To save the displayed measurement in the Memory Register and prepare the PRS-812
for the next measurement, press the Yellow RESET button. Pressing RESET causes
three functions:
a. Enters (saves) last measurement into Memory Register
b. Increases LCD displayed number of data points in the Memory Register (MEM) by
one, e.g.,
MEM 02
c. Returns the PRS-812 to its last function mode in preparation for the next
measurement
10. To make several measurements, simply press TEST to obtain the next measurement,
then RESET to save it. Repeat the TEST and RESET process for each measurement
desired.
Good Measurement Practices, specific Operational Procedures and descriptions of functional
modes are covered in detail, below.
The PRS-812 is processor controlled to obtain hundreds of measurements per second, and to make rapid
adjustments in resistance range and test voltage as necessary. It will display the resistance measurement of
the material under test based on the following criteria:
a. A digital numeric display is the averaged result of eight (8) individual, consecutive measurements,
each within
5% of each other
b. The display is continuously updated during the measurement’s electrification period
c. The final displayed measurement is the averaged result of the last eight (8) individual, consecutive
measurements, each within
5%, at the end of the electrification period.
d. If the material or test conditions vary such that eight consecutive measurements, each within
5% of
each other cannot be obtained, the PRS-812 will extend the electrification period until the
measurement criteria are met; or,
e. The electrification period will automatically be terminated and the
most recent
averaged result of
eight (8) individual, consecutive measurements will be displayed and held.
f.
In rare cases, when a stable measurement cannot be obtained the display will reset. NOTE: When
several “held” measurements vary greater than 15 to 20 percent of each other this typically indicates
inconsistencies in the material or test conditions.
NOTE
:
REC
must be displayed in the lower, left corner of the LCD in order
to enter the measurement in the Memory Register. If
REC
is not displayed,
press RECORD/RECALL once,
then press
RESET to save the data.
NOTE:
Be sure to press RESET after your last measurement to save it in your
Memory Register before turning the PRS-812
OFF
. If the instrument is turned
OFF
before pressing RESET
the last measurement will be lost
.