382356 V2.0 5/03
6
Operating Instructions
Note:
The accuracy of measured readings will be affected if the clamp jaws are not fully
closed. Pay special attention to ensure that the jaws are fully closed before testing
begins.
Note
: DO NOT clamp on to any conductor or open the clamp jaws during the start-up
self-calibration (display counts down from CAL 7 to CAL 0).
Ground Resistance Measurements
1.
Open the clamp jaws and check that all surfaces are clean and free of dust, dirt, or
any foreign substances. Clean if necessary.
2.
Snap the Jaws open and closed a
few times so that they seat
properly.
3.
Turn the meter on by moving the
rotary switch to the ohms
Ω
position. DO NOT interrupt the
start up procedure by opening the
clamp jaws or clamping around a
conductor.
4.
Once the start-up calibration
procedure is completed, clamp on
to an electrode or ground rod and
read the value of ground
resistance on the display.
Continuity Loop Test
The testing procedures are the same as for
Ground Resistance measurements except that the
rotary switch is set to the
•
)))
position and an
audible tone will sound if the measured resistance
is below approximately 40
Ω
.
Ground / Leakage Current Measurement
1.
Turn the meter on by moving the rotary switch to
the
mA
or
A
position.
2.
Clamp on to the electrode or conductor
3.
Read the value of leakage current displayed on
the display.
R
LOOP
Typical application