AEMC 2117.61 - Clamp-on Ground Resistance Tester Model 3731 with Case

Description

AEMC Ground Tester Model 3731
Good condition, very clean, and fully functional
The Clamp-on Ground Resistance Tester Model 3731 measures grounding electrodes and small grid resistance through any season, 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 Model 3731 simply clamps around the ground conductor or rod and measures the resistance to the ground. By performing measurements on intact ground systems, the user also verifies the quality of the grounding connections and bonds. Resistance and continuity of grounding loops around pads and buildings may also be measured. The Model 3731 also provides alarm and memory functions.
The probe’s high sensitivity enables measurement of leakage current flowing to the ground or circulating in the ground loops down to 1mA and neutral and phase currents to 30Arms. This feature provides additional information which is vital in distribution ground networks carrying higher levels of noise and harmonics that affect power quality.
The Model 3731 offers an alarm function and a memory (logging) function. In the alarm mode, the probe will audibly and visually indicate readings beyond
setpoint
. 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 0.01Ω to 1200Ω
Direct reading of continuity and ground loop resistance
Direct reading of ground leakage or phase current from 1mA to 30Arms
Jaw design with large 1.25" (32mm) window – accommodates up to 1000MCM cables
Auto-Off for power management
Alarm function with adjustable set point and buzzer for quick field checks
Memory function to store 99 field measurements for later retrieval and analysis
Meets EN 61010, Cat. III • CE Mark and UL approved
Rugged Lexan head and body construction resists breakage
Alarm settings and stored memory information saved during shutdown
Applications
Measure electrical ground rod and grid resistance
Use on multi-grounded systems without disconnecting the ground rod under test
Measure resistance and continuity of grounding loops around pads and buildings
Measure leakage current flowing to ground or circulating in ground systems
Conduct field surveys and retrieve and analyze readings at a later time
Use on cell towers and telecommunication sites
Use on pools, spas and other consumer installations