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T&R DMO600
  • T&R DMO600
  • T&R DMO600
  • T&R DMO600
  • T&R DMO600

T&R DMO600 Pelicase Version

T&R approved distributor and service centre.

Includes: Output lead set & carry case, mains lead, neutral link, spare fuse set, operating manual, USB flash memory key, USB keyboard.

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This unit is as the DMO600 but fitted into a plastic pelicase.

The T&R DMO600 is a high current micro-ohmmeter suitable for measuring very low resistances in a wide range of applications. The unit is equally suited to commissioning, maintenance, and production line environments. Contact resistances in circuit breakers, switch panels, isolators, and busbar joints are all easily and safely measured.

The DMO600 has pre-settable output current and electronic current control. Resistance is measured using the four wire method to remove the effect of the lead resistances. Current is injected using a pair of high current leads and the voltage drop across the resistance to be measured is picked up with sense connections. In addition, an optional current clamp may be connected to monitor any current lost to parallel connection paths (such as the earth current when testing large circuit breakers with safety earths connected to both sides of the breaker).

The unit has data storage facilities using a USB memory key, and comments can be entered to be stored with the results using a USB keyboard.


Ultra lightweight (19.7g).
10-600Adc test current with <2.5% ripple.
0.1μΩ resolution.
mV, A, and m/μΩ displayed simultaneously.
USB memory key for data storage.
USB keyboard for comment entry.
Pre-settable test current with three buttons to store user test currents.
Large back-lit liquid crystal display.
Universal supply voltage 90-264V.
Supplied with 3m output lead set.
Optional current clamp to allows testing of objects with both sides earthed.

T&R DMO600 Specifications
Main Output
Range Continuous 5 Minutes
5V DC 200 A 600 A
Range Resolution Accuracy
10 to 600 A 0.1 A ±0.5% rdg ±1d
Sense Voltage Inputs
Range Resolution Accuracy
0 to 9.999 mV 0.001 mV ±0.5% rdg ± 5d
10 to 99.99 mV 0.01 mV ±0.5% rdg ± 5d
100 to 999.9 mV 0.1 mV ±0.5% rdg ± 5d
1.000 to 5.000 V 0.001 V ±0.5% rdg ± 5d
Resistance Accuracy
Range Resistance Accuracy
100 to 600A Full Scale ±1% rdg ±2d
10 to 99A Full Scale ±1.5% rdg ±10d
Supply Requirements 90-264 Vac -10%+14%
50/60 Hz 1ph 3800 VA.
Storage temperature -20° C to 60° C.
Operating temperature 0°C to 45° C.
Dimensions 560 x 456 x 265 mm.
Weight 19.7 kg.
T&R DMO600 warranty 1 year.


T&R DMO600 Datasheet

PDF Specifications of the T&R DMO600 high current micro-ohmmeter.

Download (2.93M)

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T&R DMO600 Pelicase Version
Standard Leads 3m standard lead set c/w grey carry case. A231-0002
3m Ext. Leads 3m extension lead set. Output and sensing leads. A231-0004
5m Ext. Leads 5m extension lead set. Output and sensing leads. A231-0005
10m Ext. Leads 10m extension lead set. Output and sensing leads. A231-0006
Printer Kit Suitable for DVS3, PCU1-LT/SP, DSM/DMO and ADM range of test sets. 210

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