8
Micro-Ohmmeter Model 6250
CHAPTER 2
PRODUCT FEATURES
2.1 Description
The Model 6250 Micro-ohmmeter is used to perform low resistance
measurements from 1μΩ to 2500Ω. There are seven ranges with test
currents from 1mA to 10A.
The front end of the micro-ohmmeter employs a four-wire Kelvin congu-
ration, which eliminates test lead resistance for a measurement accuracy
of 0.05%. A built-in circuit lters out AC signals.
The Model 6250 Micro-ohmmeter is packaged in a sealed eld case well
suited for shop and eld 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, metal type, reference and ambient temperatures
(if selected), alarm conditions (if selected), test current and range and test
mode (Resistive, Inductive or Auto).
For operator safety and instrument protection, the micro-ohmmeter is
fuse protected at the inputs. Two fuses, accessible behind the front panel,
protect against stored energy in inductive loads.
Enhanced internal circuitry protects against possible inductive kickback
when the current is shut o.
A built-in thermal switch protects the micro-ohmmeter against overheating
on the 10A range when in continuous use.
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information@itm.com1.800.561.8187
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