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78-8136-3182-3
4. Fieldmeter Operation
Kilovolts/Meter Measurement Ranges:
Manual/Auto; 1.25 kV/m, 5.0 kV/m, 25 kV/m, 50 kV/m, & 250 kV/m
Meter display symbols in Fieldmeter mode
F
= 3M
™
Charge Analyzer 711 in Fieldmeter mode (upper left corner).
R
= Kilovolts/Meter measurement range (kV/m) selected.
AR
= Auto voltage measurement range selected (arrow
←
symbol will briefly flash in lower left corner before
symbol appears. Arrow
→
symbol will briefly flash during overflow condition when in the auto range).
E
= Electrical field strength (V/meter) as measured. If range selected is too low
OVERFLOW
will appear.
Setup
WARNING
To reduce the risks associated with hazardous voltage:
•
Connect the attached ground wire on rear panel to an electrical ground before
operating the analyzer;
•
Do not use if the analyzer housing or power supply are damaged;
•
Do not attempt to modify or repair — no user serviceable parts inside — contact
3M Service for repair.
To reduce the risks associated with fire or explosion:
•
Do not operate the analyzer in an explosive environment. The analyzer is not
designed to be intrinsically safe.
The following procedure zeros each voltage range in the Fieldmeter measurement mode.
1. Ground the charge analyzer 711 by attaching the ground wire with alligator clip on the rear panel of the unit
to an earth/electrical ground.
2. Remove the plate electrode (b) from the analyzer if attached.
Note: If the unit is ON at this time, the display will briefly indicate CHANGE MODE OF OPERATION
then FIELDMETER IS ENABLED.
3. Depress the on/off button to activate the analyzer.
4. Cover the measurement electrode on the top of the unit with the red sensor cover (e).
5. Select each range by depressing the “A” button
RANGE
momentarily. Be sure to allow a brief moment
between each range selection to perform the zeroing. This completes the zeroing of all ranges.
