Prostat PFM-711A, Руководство пользователя

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OPERATIONAL REQUIREMENT
Case of PFM-711A Field Meter MUST be grounded for proper opera on
2. With the operator’s fi ngers contac ng the grounding
snap on the back of the unit, slide the three posi on
(
kV/inch , OFF, V/inch ) RANGE/POWER switch (s1) to
the kV/inch posi on.
a. Confi rm that the instrument’s display is ac vated
and that the ba ery low indica on ( BATT) is not
displayed. If low ba ery indica on is displayed,
replace the ba ery.
b. Insure the HOLD feature is OFF. Turn the HOLD
feature OFF by pushing the SAMPLE/HOLD (s2)
control bu on once.
c. Hold the unit away from surfaces and objects, and
rotate the Black Panel ZERO knob (r16) un l the
display indicates 0.00.
3. Posi on the front sensor of the PFM-711A Field Meter approximately one inch from the sur-
face or object being measured. Move the instrument toward, or away from the surface un l
the RED Bulls Eye is focused on the test surface.
CAUTION
Do not shine the RED Bull’s Eye Ranging lights into
yours or anyone else’s eyes.
4. Once the instrument is properly posi oned, the PFM-711A will indicate the electrosta c fi eld
measured on its display. If desired, push the SAMPLE/HOLD bu on (s2) once to lock the indica-
on on the display. The HOLD indica on will also appear on the instrument display.
5. For very low voltage measurements, repeat the procedure with the PFM-711A in its low range.
Slide the RANGE/POWER switch (s1) to V/inch posi on. Re-zero the instrument and repeat the
meter posi oning and measurement procedures in points 2-4, above.
6. PFM-711A Controls
The PFM-711A has two switches and a rotary knob. A three-posi on slide switch (s1) provides
Range Selec ons and
ON/OFF control. A rotary ZERO adjust control (r16) is also provided. The
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Rev. D / October 4, 2018
PFM-711A Electrosta c Field Meter