User Guide
8 Clamp-on Ground Resistance Tester Model 6416
2.2 Features
■ Simple and fast clamp-on operation - no leads, no auxiliary rods or spacing
requirements
- Ammeter: Current measurements from 0.2mA to 40A.
- Loop ohmmeter: Measurement of loop impedances from 0.01 to 1500W.
The ohmmeter function makes allowance for the presence of inductances
in the loop, making impedance measurements more accurate at low
values.
- Contact voltage: The contact voltage is determined by calculating the
product of the loop impedance and leakage current. The value found is an
upper bound on the voltage between the measurement point and earth,
since the impedance taken into account is that of the whole loop.
■ Touch voltage display
■ Large multi-function, bright yellow organic light emitting diode display (OLED)
■ Display in Standard mode (one screen) or Advanced mode (three screens)
■ Clamping diameter of 1.38" (35mm) accommodating cables up to 1000kcmil
■ Stores up to 300 measurements (W and/or A, with time-stamping)
■ Displays stored measurements on the display
■ Measurement hold by the HOLD and AUTO-HOLD functions
■ Clamp opening made easy by a trigger with a force compensation system
■ Auto Power OFF function
■ Alarm function with adjustable set point and buzzer for quick eld checks
■ Rugged Lexan
®
head and body construction resists breakage
■ Alarm settings and stored memory information saved during shutdown
■ NOISE icon and buzzer notify the user to presence of dangerous voltage and
current levels
■ Designed to EN 61010-1, 600V CAT IV safety standards
2.3 Applications
■ Ground electrode system resistance
■ Bonding/continuity checks
■ Cell tower grounding verication
■ Ground measurements on Railroad signaling systems