Prostat PFK-100, Руководство пользователя

Страница: 20 / 28

20
Rev. 6 / July 16, 2020
PFM-100 Field Meter Set
4.
Zero the PFM-711A Field Meter
Ground the case by wearing a func onal wrist strap that is properly grounded. Turn the
meter on by selec ng the desired range. Press the
SAMPLE/HOLD bu on down so that it
latches in the lower or SAMPLE posi on, and HOLD is not indicated in the meter display.
Adjust the display to zero (0) volts by rota ng the ZERO control.
IMPORTANT: The PFM-711A meter case is conduc ve. It provides the ground reference for
its measuring circuit. For accurate measurements it is necessary that the person holding
the meter be properly grounded, or the meter has a ground connec on made to the metal
snap on the rear of the case.
5.
Take an Electrosta c Field Measurement with the PFM-711A Field Meter
Turn the meter ON to the desired range. Hold the front of the meter approximately one
inch from the surface to be measured. Adjust the distance from the test surface un l the
RED ranging lights form a Bull’s Eye. Allow the instrument indica on to stabilize. Record the
measurement.
6.
HOLD a PFM-711A Measurement
With the meter in the measurement posi on described above, press the SAMPLE/HOLD
bu on so that it latches in the upper or HOLD posi on. This will freeze the reading on the
display, allowing the meter to be moved to a posi on where it may be more easily read
and documented. When the meter is in the
HOLD posi on, the “ HOLD ” will appear in the
display.
7.
PCS-730 Charge Source
The Charging Wand rod assembly is inserted into the output jack The momentary rocker
switch is depressed and held to produce the desired polarity. The contact rod is then
touched against the isolated plate of the CPM-720A. Releasing the rocker switch turns off
power to the unit.
The PCS-730 MUST be grounded for proper performance. A 10mm metal snap is provided
on the rear of the case to accomplish this. The user must be adequately grounded and
touch the snap while opera ng the PCS-730. Alterna vely, a grounding cord may be at-
tached to the snap. Improper grounding will result in low or erra c output voltages. The
output current of the PCS-730 is limited to less than 1 micro amp to minimize the possibil-
ity of personnel shock hazards. To avoid sta c damage; Do not make contact with electro-
sta c discharge sensi ve devices.
VI. Maintenance & User Adjustment
A. PFM-711A Field Meter
The PFM-711A is factory calibrated and other than ba ery replacement, external cleaning, and oc-
casional adjustment of the front panel
Zero knob range posi on, general user maintenance is not
required. The case has been sealed and BREAKING THE SEALS WILL VOID THE WARRANTY . If for
any reason you believe the meter is not working correctly, contact Prostat Corpora on for assis-
tance.