Operating Reference Card; Field Test Loop - AEMC 3711 User Manual

Operating Reference Card

Included with the Model 3711 and 3731 you will find an operating
reference card like the one shown here.
This card summarizes all the features of the Model 3711 and 3731.
INSTRU ENTS
odel 3711/3731 Common Features
N/ FF: n/ ff
: Measure ground resistance [
Ω
A: Measure AC current [mA, A]
H LD: Freeze (hold) the display
+ N: Toggle the buzzer
Ω
H LD + N: Toggle auto power on/off

Field Test Loop

The test loop of 25Ω (Fig. 33) is provided to perform a quick check of the
instrument. Check the clamp-on ground resistance tester by clamping
around the loop; the 3711 or 3731 should read between 24.2Ω and
25.8Ω.
* Value is for ambient temperature between 68° and 78°F. Value may differ a few counts
under or above this temperature.
Ground Resistance Tester Models 3711 and 3731
®
lamp-On Ground Resistance Tester
perating Reference
]
Ω
on/off
CALIBRATION LOOP 25
odel 3731 Additional Features
AL: Turn alarm (AL) on/off
MEM: Store the reading in memory
AL + N: Program alarm mode
Use
MEM + N: Short beep: n/ ff memory recall [MR]
MEM + N: Long beep (6s): Clear memory [CLR]
A + N: Toggle memory display on/off
Figure 32
I N S T R U M E N T S
Ω
Figure 33
- 32 -
to adjust Down Up