Fraser EX715 - Operating Instructions

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 stac
charge in kilovolts. he polarity of the charge is posive unless a negave
sign is shown on the display.
3. Click the buon 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 buon
when it is poinng into free air away from the charge. The HOLD funcon
stops and the EX715 is ready to take another reading.
5. The EX715 turns itself OFF automacally aer about 60 seconds.
6. Do not take a measurement within 300mm of a stac eliminator, as the
ionised air will distort the reading.
7. Replace the 9V PP3 baery when “Baery Low” indicator shows on display.
Access is through the removable plate in the boom of the instrument. For
baery type see next page.
4. Operang Instrucons