7
EX715 Iss.4
The earth lead must be used to connect the instrument to a suitable grounded
point during operation. This prevents charge building up in the instrument and
distorting the reading, or causing a discharge. The ring end is clipped to the
bottom of the meter; the crocodile clip/4mm stud should be connected to a
suitable earth, such as a bare metal part of the machine.
1. Hold EX715 in the palm of hand, point it away from the charge and click the
button once to turn ON. This sets the zero level for readings, so it must be
pointing away from the charge when the button is clicked.
2. Hold the instrument 100mm from the object to be measured and observe
the reading on the LCDdisplay. It shows the surface voltage of the stac
charge in kilovolts. he polarity of the charge is posive unless a negave
sign is shown on the display.
3. Click the buon again to HOLD the reading. When the reading is on HOLD
it blinks/ ashes.
4. To take another measurement, re-zero the instrument by clicking the buon
when it is poinng into free air away from the charge. The HOLD funcon
stops and the EX715 is ready to take another reading.
5. The EX715 turns itself OFF automacally aer about 60 seconds.
6. Do not take a measurement within 300mm of a stac eliminator, as the
ionised air will distort the reading.
7. Replace the 9V PP3 baery when “Baery Low” indicator shows on display.
Access is through the removable plate in the boom of the instrument. For
baery type see next page.
4. Operang Instrucons
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