Whether you're in the workshop, out in the field or in a testing facility, Seaward Cropico's DO7 is ready for performing low resistance measurements in any application.
Portable and easy to use with true 4 terminal measurements to eliminate lead resistance errors, the DO7 is suitable for low resistance applications in automotive, aerospace, military and utility applications such as electrical, water and gas. It can also be used with drivers and electrical machines.
Cropico's DO7 micro ohmmeter can measure low resistance values from 600μΩ to 60Ω with measurement current of up to 10A. Six measurement ranges are available at 60Ω, 6Ω, 600mΩ, 60mΩ, 6mΩ and 600μΩ with resolution as low as 0.1μΩ available on the 600μΩ range.
The DO7 is built inside its own rugged carrying case; just close the lid when not in use and it can be easily carried like a standard briefcase. The tester is powered by rechargeable batteries with life of up to 1 hour on continuous operation or up to 20 hours when used on other modes.
Additional features of this portable micro ohmmeter include a front panel with serial RS232 output (for connection to external printer or PC) and a socket for connection of an external start switch (for example a foot switch).
Seaward Cropico DO7 Portable Digital Microhmmeter Key Features
- Rugged, portable digital micro ohmmeter for low resistance measurements in a wide variety of applications
- True 4 terminal measurements to eliminate lead resistance errors
- 10A measurement current
- Measurement range from 600μΩ to 60Ω
- Resolution as low as 0.1μΩ on 600μΩ range
- 0.8" LED display which can be easily seen even in daylight conditions
- Automatic average of forward and reverse measurements
- Remote start socket
- All-solid state design - the DO7 is built inside its own portable carrying case with a built-in handle
- Wide range of leads and accessories available
- RS232 printer output
- Powered by rechargeable batteries with life of up to 20 hours (when not used in continuous mode)
- Protection up to 415V rms at the measurement terminals
What's Included?
- Seaward Cropico DO7 Micro Ohmmeter
- Set of Test Leads
- Mains Cord
- Operating Instructions
Optional Accessories
If you would like any of the following accessories please call our sales team for more information and pricing, quoting the part number listed.
Code | Item | Part Number |
---|---|---|
DO7-RS | Remote Start Plug | 190109 |
HSO1 | Duplex Handspikes with 3m Lead Length | 190082 |
HS01-RS | Duplex Handspikes with 3m Lead Length and Remote Start Button | 190083 |
HS02 | Duplex Handspikes with 3 and 15m Lead Length | 190055 |
HS02-RS | Duplex Handpikes with 3 and 15m Lead Length and Remote Start Button | 190058 |
LS05 | Lead Set with 4 x 1m Leads Terminated in Banans Plugs, 4 x Croc Clips, 4 x Test Probes and 2 x Kelvin Clips (Type KC1) | 190004 |
MTS2 | Calibration Standard | 930241 |
RSLO1 | RS232 Cable | 930146 |
Seaward Cropico DO7 Technical Specifications
Range | Resolution | Typical Current | Accuracy @20°C ±5°C 1 Year | Temperature Coefficient/°C |
---|---|---|---|---|
60Ω | 10mΩ | 1mA | ±(0.15% Rdg + 0.05% FS) | 40ppm Rdg + 30ppm FS |
6Ω | 1mΩ | 10mA | ±(0.15% Rdg + 0.05% FS) | 40ppm Rdg + 30ppm FS |
600mΩ | 100μΩ | 100mA | ±(0.15% Rdg + 0.05% FS) | 40ppm Rdg + 30ppm FS |
60mΩ | 10μΩ | 1A | ±(0.15% Rdg + 0.05% FS) | 40ppm Rdg + 30ppm FS |
6mΩ | 1μΩ | 10A | ±(0.2% Rdg + 0.01% FS) | 40ppm Rdg + 30ppm FS |
600μΩ | 0.1μΩ | 10A | ±(0.2% Rdg + 0.01% FS) | 40ppm Rdg + 250ppm FS |
Other Specs | ||||
Measurement | 4 terminal Kelvin/Thomson principle eliminates errors due to lead resistance. Open circuit measurement voltage of 2V DC | |||
Display | 0.8" LED, 6000 count with automatic decimal point and polarity indication | |||
Ranges | 6 push button selected with LED indication | |||
Terminals | 6mm binding posts accept spade tags and 4mm banana plugs | |||
Working Temperature | 0 to 40°C, relative humidity 80% max non-condensing | |||
Storage Temperature | -20 to +50°C | |||
Mains Supply | 100/120/220/240V +10% - 13% 47Hz to 63Hz, max 80VA |
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Safety | EN61010-1 protective class 1 | |||
Protection | 415V rms maximum at input terminals | |||
Calibration | Digital, security key protected | |||
Battery | Sealed lead acid, rechargeable cells giving a minimum of 1 hour of continuous measurements on the lowest 10A ranges and 20 hours on all other ranges. Internal charger with battery state indicator | |||
Average | Automatic average and display of measurement with forward and reverse current | |||
Dimensions | 343 x 327 x 152mm (W x D x H) approx | |||
Weight | 8kg (18lbs) approx | |||
Warranty | 1 year - subject to registration with Seaward |
SKU | DO7 |
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Manufacturer Part Code | 930119 |