Atec AEMC-3710-3730 - Manual (Page 2)

Measure ground rod and small grid resistance in any environ-
ment without the use of auxiliary ground rods. Clamp-on ground
resistance testers are used in multi-grounded systems without
disconnecting the ground under test. The Models 3710 and 3730
simply clamp around the ground conductor or rod and measure
the resistance to ground. By performing measurements on intact
ground systems, the user also verifies the quality of the ground-
ing connections and bonds. Resistance and continuity of
grounding loops around pads and buildings may also be mea-
sured.
Both models include a current measurement function. The
probe’s high sensitivity enables measurement of leakage
current flowing to ground or circulating in ground loops down to
1mA and neutral currents to 30Arms. This feature provides addi-
tional information which is becoming vital as distribution
ground networks carry higher levels of noise and harmonics
which affect power quality.
The Model 3730 offers an alarm function and a memory
(logging) function. In the alarm mode, the probe will audi-
bly and visually indicate if the reading is beyond an input
set point. The user may also have the alarm initiated above
or below the set point. This alarm feature permits quick field
checks where only “pass” or “fail” readings will suffice.
Features
➤ Simple and fast clamp-on operation - no leads,
no auxiliary rods or spacing requirements
➤ Direct reading of ground resistance from
1
Ω
to 1200
Ω
➤ Direct reading of continuity and ground
loop resistance
➤ Direct reading of ground leakage current from
1mA to 30Arms
➤ Jaw design with large 1.25" (32 mm) window
accommodates up to 1000 MCM cables
➤ Auto-off for power management
➤ Alarm function with adjustable set point and
buzzer for quick field checks
➤ Memory function to store 99 field measure-
ments for later retrieval and analysis
➤ UL, CSA and GS listed, meets IEC 1010-2-032
and CE marked.
➤ Alarm settings and stored memory information
saved during shutdown
➤ US Patent No. 362,639
Ground Resistance Tester Models 3710 and 3730
TECHNICAL ASSISTANCE (800) 343-1391 www.aemc.com