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Cropico DO7Plus Digital Microhmmeter
  • Cropico DO7Plus Digital Microhmmeter
  • Cropico DO7Plus Digital Microhmmeter
  • Cropico DO7Plus Digital Microhmmeter

Cropico DO7 Plus Digital Microhmmeter

Cropico authorised distributor and service centre.

Includes: Measurement test leads, CD-ROM which includes: Data logger, USB drivers and pdf manual, Universal external main charger, Standard USB cable, Printed manual for Cropico DO7 Plus micro ohmmeter, External Pouch for leads.


The DO7 Plus is a 10A micro ohmmeter, suitable for applications within aerospace, utilities, cable or machine manufacturers or where a cooling curve is required to plot peak resistance. Sealed in an IP67 case (when closed or IP53, lid open) it is ruggedly constructed to ensure durability.

The DO7Plus microhmmeter has a backlit LCD graphics panel, full QWERTY keyboard, temperature compensation via optional PT100 probe, and built in coefficients for Copper and Aluminium as well as user defined. Full cooling curve facilities are built in, with real time graphical plotting on the LCD.

The Cropico DO7Plus microhmmeter has a display length of 60000 counts and auto averaging of forward and reverse measurement removes thermal emf differences. Connectivity is improved with both USB and RS232 for data downloading. The internal memory holds up to 1000 date and time stamped readings and which can be viewed on the LCD or downloaded with the free software provided, as CSV file to a PC for further analysis.

The included data-log function has the ability to display logged values in a table or graphical format and notes may be added to each logged value. The DO7PLUS also has the facility to automatically measure and calculate cooling curves displaying in both graphical and numeric formats. This makes the DO7PLUS the ideal instrument for machine testing.


On-screen, real-time graphical plotting cooling curve facilities with peak resistance value calculator.
Reading rate of 2 readings per second.
Measuring ranges from 6mΩ - 6kΩ.
Resolution 100nΩ on 6mΩ range.
Backlit LCD graphic panel with programmable timer for battery conservation.
Single pulse measurement for fast resistance tests.
Continuous measurement current for inductive tests.
Full test lead continuity testing and diagnostic display.
Multilingual - display available in English, French, German, Spanish or Italian.
RS-232 and USB interfaces.

Cropico DO7 Plus Product Video

Cropico DO7 Plus Specifications
Range Current Resolution FSV Uncertainty
6.0000mΩ 10A 100nΩ 60mV ±(0.05% Rdg + 0.01% FS)
60.000mΩ 1A 1μΩ 60mV ±(0.05% Rdg + 0.01% FS)
600.00mΩ 100mA 10μΩ 60mV ±(0.05% Rdg + 0.01% FS)
6.0000Ω 10mA 100μΩ 60mV ±(0.05% Rdg + 0.01% FS)
60.000Ω 1mA 1mΩ 60mV ±(0.05% Rdg + 0.01% FS)
600.00Ω 100μA 10mΩ 60mV ±(0.05% Rdg + 0.01% FS)
6.0000kΩ 100μA 100mΩ 600mV ±(0.05% Rdg + 0.01% FS)
General Specifications
Measurement 4 terminal Kelvin/Thomson principle eliminates errors due to lead resistance.
Display 60,000 count + sign LCD graphics panel with backlight
Select display value of °C or °F.
Ranges 7 resistance ranges.
Terminals 4 mm safety sockets.
Working Temperature 0 to 40°C, relative humidity 80% max non-condensing.
Storage Temperature -20 to +50°C.
Mains Supply External mains psu 90V – 253V, 47Hz to 63Hz with interchangeable plugs.
Safety Conforms to EN 61010-1:2001 50V Cat 3.
Calibration Digital
Password protected, manual or via remote interface.
Battery Internal, fixed NiMh battery pack, gas gauge circuits to monitor battery capacity.
Internal automatic FAST/TRICKLE battery Charger.
DC input from 9 – 36V.
Dimensions 358 X 269 X 155mm.
Weight <5Kg (instrument only).
Cropico DO7 Plus warranty 1 year - subject to registration with Seaward.


Cropico DO7 Plus Datasheet

PDF Specifications of the Cropico DO7 Plus Microhmmeter.

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Cropico DO7 Plus Digital Microhmmeter
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