Programming The Alarm Setpoint - AEMC 3710 User Manual

Alarm
Turn the Alarm on/off by pressing the
AL button. The alarm feature pro-
vides a continuous audible warning
(when beeper is active) and visual
indications when a setpoint has been
reached (Fig. 13, 14) (e.g. alarm indi-
cation when ground electrode resis-
tance is above the NEC limit of 25 Ω.)
If the alarm is not triggered, only
will be displayed indicating that the
alarm is active.

Programming the Alarm Setpoint

To program the alarm setpoint, push ON and AL together at power-up.
The alarm setpoint value will blink. To program the proper setpoint value
AEMC
Model 3730
GROUND TESTER
I N S T R U M E N T S
Ω
MEM AL A
Figure 14
The user has the option of having the alarm triggered when a reading is
below the programmed setpoint. This is accomplished with an internal
switch and outlined in the following section.
Ground Resistance Tester Models 3710/3730
AEMC
I N S T R U M E N T S
MEM
(1 to 199 Ω), use the curser arrows
( down,
When the setpoint is reached, turn
the instrument off. This will put the
setpoint into memory. Turn the
instrument back on (you may need
to press AL to activate the alarm fea-
ON
ture).
OFF
Note: The alarm setpoint is preset at
25 Ω. The alarm will be triggered
when the setpoint is exceeded .
Model 3730
GROUND TESTER
ON
Ω
AL A OFF
Figure 13
up).
17