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Cropico DO7

The Cropico DO7 is a digital micro ohmmeter designed for precise low resistance measurement, making it ideal for use in utilities, workshops, field service, and test facilities.

Ruggedly built in a sealed ABS plastic case with lid and carrying handle, the DO7 is portable and durable. It offers advanced features including rechargeable batteries for true portability, providing more than 40 minutes of cumulative operation on the lowest ranges and over 12 hours on all others. The internal charger automatically switches from boost charge to trickle maintenance charge. Warning LEDs alert the operator when open circuit lead conditions are detected.

Function

• Accurate low resistance measurement using the 4-terminal Kelvin/Thomson principle
• Rugged ABS plastic case with carrying handle for portability
• Long operating time with rechargeable batteries
• Boost/trickle automatic charging system
• Warning LEDs for open circuit lead conditions
• Digital calibration with security key protection
• Supplied with calibration certificate

Technical Specifications

measurement principle

  • 4-terminal Kelvin/Thomson principle (eliminates errors from lead resistance)

measurement voltage

  • Open circuit measurement voltage ~2 V DC

display

  • 0.8" LED, 6000 count

  • Automatic decimal point and polarity indication

ranges

  • 6 push-button selected with LED indication

calibration

  • Digital, security key protected

battery

  • Sealed lead-acid, rechargeable cells

  • Over 40 minutes of cumulative operation on lowest ranges

  • Over 12 hours operation on other ranges

  • Internal charger with boost to 90% then trickle charge

  • Battery state indicator

terminals

  • 6 mm binding posts

  • Accept spade tags and 4 mm banana plugs

operating conditions

  • Temperature: 0 °C to 40 °C

  • Relative humidity: 80% max, non-condensing

storage conditions

  • Temperature: -20 °C to +50 °C

power supply

  • 100 / 120 / 220 / 240 V ±10% / -13%

  • Frequency: 47–63 Hz

  • Power consumption: 20 VA

safety compliance

  • IEC 1010, Protective Class 1

emc compliance

  • Meets EN 61326 standards

dimensions

  • 343 × 327 × 152 mm (W × D × H, approx.)

weight

  • ~8 kg

Standard Accessories

  • Mains cord

  • Measuring leads with Kelvin clips

  • Handbook

  • Calibration certificate

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