Product Features; Description - AEMC 6240 User Manual

CHAPTER 2

PRODUCT FEATURES

2.1

Description

The Micro-ohmmeter Model 6240 is used to perform low resistance
measurements from 1μΩ to 400Ω. There are six ranges with test currents
from 10mA to 10A.
The front end of the micro-ohmmeter employs a four-wire Kelvin configu-
ration, which eliminates test lead resistance for a measurement accuracy
of 0.25%. A built-in circuit filters out AC signals.
The Micro-ohmmeter Model 6240 is packaged in a sealed field case well
suited for shop and field use. Power is supplied by a long-life NiMH battery
pack with a built-in recharger (110/220V).
The large, easy-to-read liquid crystal display is 2.25 x 4.00". It displays the
value of resistance, current or voltage test, polarity and battery charge.
For operator safety and instrument protection, the micro-ohmmeter is fuse
protected at the inputs. One fuse, accessible from the front panel, protects
against stored energy in inductive loads.
Enhanced internal circuitry protects against possible inductive kickback
when the current is shut off.
A built-in thermal switch protects the micro-ohmmeter against overheating
on the 10A range when in continuous use.
6
Micro-Ohmmeter Model 6240