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P403-3222 Rev. K 4/18
SELF TEST PROCEDURE
The operation of the Protective Ground Set Tester can be verified using the Self Test Cable included with the
tester. It is not designed to test accuracy.
1.
Place the tester on a table of convenient height and plug it into an AC outlet, 110 (Cat. No. C403-
3220) or 220 (Cat. No. PSC403-3220003) VAC.
2.
Thread the attachment studs into fixed connection inputs.
3.
Securely connect Self Test Cable to the attachment studs.
4.
Turn on the unit. The power switch will illuminate when the power is on.
5.
Place the ‘INPUT SELECT’ switch in the ‘FIXED’ position.
6.
Place the ‘CONTINUOUS TEST’ switch in the ‘OFF’ position.
7.
Press the ‘SINGLE TEST’ switch.
8.
The display will show the measured resistance of the self test cable on line 2 of the display. The
resistance measured should be between 3.0 and 7.5 mΩ**. If the measured resistance is outside these
values, retighten the ball studs and check to make sure that the self test cable has good electrical con-
nections. After retest, if the measured resistance is still not between 3.0 and 7.5 mΩ**, discontinue
use of the tester. The Self Test Cable is not designed with tight tolerances for accuracy testing.
Note that the thresholds and pass/fail LEDs will function during the self test but do not pertain to the self
test.
**mΩ (milliohm) = 0.001 ohm