10
4. Cover the measurement electrode on the top of the unit with the red sensor
cover (e).
5. Select each range by pressing 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.
Use
1. Remove the red sensor cover (e) from the measurement electrode.
2. Select the desired voltage range by pressing the “A” button.
Note: If OVERFLOW appears during the measurement select a higher range
The 3M
™
Charge Analyzer 711 is now ready to measure electrostatic fields
on objects such as tapes, films, plastic objects, etc., indicating in kilovolts per
meter.
Demonstration #1 Testing of Low
Tribocharging Tapes
With the Charge Analyzer 711 in the
Fieldmeter operating mode, pull the tape
off the roll and hold it above the sensor.
The digital display reads the field strength
in kV/m. To convert readings of kV/m into
volts use the following formulas:
R/100 x D (cm) or R/39.37 x D (in.) where:
R = Reading indicated on the display and
D = Distance between tape and sensor
electrode, measured in centimeters or
inches.
Example 1: If reading on the display of the
Charge Analyzer 711 is 200 KV/m and the distance to the sensor electrode is 5
cm, the voltage on the tape is calculated by: 200/100 x 5 = 10 Kilovolts
Example 2: If reading on the display of the Charge Analyzer 711 is 50 KV/m
and the distance to the sensor electrode is 3 inches, the voltage on the tape is
calculated by: 50/39.37 x 3 = 3.8 Kilovolts
Note: Properly performing ESD control tapes must minimize charging when unwound from the
carrier roll.
