Resistance - AEMC 3711 User Manual

Resistance

The Ω function provides resistance measurements from 0.1 to 1200Ω in
seven autoranges. (Fig. 9).
Range
0.07 to 1Ω
1.0 to 50.0Ω
50 to 100Ω
100 to 200Ω
200 to 400Ω
400 to 600Ω
600 to 1200Ω
Upon initial power-on, the Ω function is chosen by default.
The Models 3711 and 3731 will track down to
0.07Ω and indicate
Accuracy is
Measurements below 0.1Ω typically (or even
1Ω) indicate the ground tester is clamped onto
a closed loop and that the signal is not flowing
through the ground under test.
odel 3711
®
GROUND TESTER
I N S T R U E N T S
Ω
A
Figure 11
Ground Resistance Tester Models 3711 and 3731
Resolution
0.01Ω
0.1Ω
0.5Ω
1Ω
5Ω
10Ω
50Ω
.1
below 0.1Ω (Fig. 10).
not defined
If the resistance readings are above 1200Ω, OL
will be displayed on the LCD (Fig. 11). This may
indicate high ground resistance but may also be
caused by a disconnected or poorly bonded
ground.
ON
OFF
below 0.1Ω.
- 16 -
odel 3711
®
GROUND TESTER
I N S T R U E N T S
ON
OFF
Figure 9
Model 3711
®
G OUND TESTE
I N S T U M E N T S
.1
ON
OFF
Ω
Figure 10