AEMC instruments 3640 Skrócona instrukcja obsługi - Strona 2
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Drukuj stronęTesting the Grounding System
STEP 2:
Conduct independent Fall-of-Potential tests on each of the
grounding systems.
1. Insert the auxiliary test electrode Z a few inches into the ground and 50
to 80 feet away at a location that is central to the three grounding system
X rods.
2. Insert the auxiliary test electrode Y a few inches into the ground at a
distance approximately 30 to 45 ft from the first ground system X1 and in
a straight line with the Z electrode.
3. Connect the Red,
electrodes and instrument as shown.
4. Press and hold the Test button until reading stabilizes to measure the
resistance.
5. Repeat steps 2, 3 and 4 for grounding systems X2 and X3.
NOTE: Readings should be below 1000Ω, 750Ω, 100Ω or 25Ω as defined by local
authority.
After achieving the acceptable resistance, disconnect the meter and auxiliary rods Y
and Z before Step 3, connecting the tankers and pump to their grounding systems.
X
AEMC
Instruments • (800) 945-2362 •
®
Blue
and
X
Y
C1
P2
GROUND RESISTANCE TESTER
MODEL 3640
X-Z
Fault
Xv-Y
Hi Resistance
Xv-Y
Hi Noise
AUTORANGING
!
REFER TO USER MANUAL
FOR FAULT WARNING LIGHT
Press To
EXPLANATIONS
Measure
50 to 80 ft
30 to 45 ft
www aemc.com
Green
test wires to the grounding rod(s),
Z
C2
Ω
®
Y
I N S T R U M E N T S
Z
99-MAN 100438v3