Micro-Ohmmeter Model 5600
The Micro-Ohmmeter Model 5600 is housed in a sealed field case.
Power is supplied by a long-life NiCad battery with a built-in recharger
(110/220V). The large, easy-to-read LCD is 18mm high; it displays the
value of resistance, and indicates overrange and reversed connection of
measurement leads.
Four LEDs on the front panel indicate measurement faults (open circuit,
blown fuse, etc.); thermal protection; low battery and battery recharging.
For operator safety and instrument protection, the micro-ohmmeter is
fuse protected at the inputs. Two fuses, accessible on the front panel,
protect 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.
Electrical Specifications
Specifications are given for an ambient temperature of 23°C ± 3°, relative
humidity of 40 to 60% and a supply voltage of 6V ± 0.1V.
Ranges
2000µΩ 20mΩ 200mΩ 2000mΩ 20Ω 200Ω
Display
1999 19.99 199.9 1999 19.99 199.9
Resolution
1µΩ 10µΩ 100µΩ 1mΩ 10mΩ 100mΩ
Test Current
10A 1A 1A 100mA 10mA 10mA
Accuracy:
2000µ
Ω
range:
0.25% of Reading typical, 0.5% max ± 2cts
20, 200, 2000m
Ω
, 20, 200
Ω
ranges:
0.25% of Reading typical, 0.5% max ± 1ct
Influence of Environment Conditions:
Temperature: 0.1% per 10°C typical, 0.25% max.
Humidity: 0.5% max from 10 to 90%
Battery Voltage: ± 0.1% from 4.5 to 7V
Power Supply:
Rechargeable 6V, 7 Ah NiCad battery;
Built-in 110/220V (47 to 450Hz) charger;
Automatic shutoff after 4 minutes non-use;
Automatic shutoff when battery voltage <4.5V
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