Cropico DO7e Digital Ohmmeter

Cropico Instruments

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Cropico authorised distributor and service centre.

Using a rechargeable sealed lead acid battery with built-in charger, the Cropico DO7e is capable of measuring with a current of 10 Amps on the lowest range.

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930113

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£ 1,424.00 rrp £ 1,583.00

Save £ 159.00

(£ 1,708.80 inc VAT.)

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The Cropico DO7e is an accurate bench/portable Digital Ohmmeter for the measurement of resistance in the range 1μΩ to 600Ω. It offers you the four terminal resistance measurement method to eliminate the effect of lead resistance. The measured values are displayed on a 4-digit LED display; an overflow of the selected range is also indicated.

The measurement is true 4 terminal, using the Kelvin principle. A stable current is produced across the resistance to be measured via the C terminals, and the voltage drop across the Rx is measured at the P terminals. This potential drop is then compared against the voltage drop across internal standards. The ratio of these is then converted to the resistance value of Rx and displayed in ohms on the digital display. High accuracy and long term stability is achieved by using specially selected components.

The measuring ranges may be automatically or manually selected. Rechargeable batteries means real portability with more than 1 hour of continuous operation on the lowest ranges, and 20 hours on all others. Automatic Power Off ensures maximum battery life. The internal charger will boost charge to 90% of full charge, switching automatically to a trickle maintenance charge. Warning LEDs illuminate when an open circuit lead condition is detected.

Simple push-button or auto-range selection of the range required, ensures that the DO7e may be easily used by unskilled personnel. Error and status warnings are illuminated when appropriate.

Automatic Power Off ensures maximum battery life. The internal charger will boost charge to 90% of full charge, switching automatically to a trickle maintenance charge.

FEATURES

High accuracy ranges 6milliohms to 600ohms.
LED display for daylight viewing.
Mains / rechargeable battery operation.

Cropico DO7e Specifications:

  • Measurement: 4 Terminal Kelvin/Thomson principle.
  • 10 Amp measuring current on lowest range.
  • Resolution 1 micro ohm on 6 milli ohm range.
  • Display: 0.8" LED 6000 count with automatic decimal point and polarity indication.
  • Ranges: 6 push button or auto selected with LED indication.
  • Calibration: Digital, security code protected.
  • Protection: 415 rms maximum at input terminals.
  • Battery: Sealed lead acid, rechargeable cell.
  • Terminals: 6mm binding posts accept spade tags and 4mm banana plugs.
  • Mains Supply: 10/230 Volts +10% -10% 47Þ63Hz 20VA.
  • Safety:    EN 61010-1.
  • Dimensions: 343 x 327 x 152mm (W D H) approx.
  • Weight: 6kg approx.
  • Cropico DO7e Warranty: one year.

Includes: mains cord, measuring leads with Kelvin Clips, handbook, and Cropico DO7e calibration certificate.

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Cropico DO7e Digital Ohmmeter