Digital micro-ohmmeter DO7

portablelow-resistancerugged

- LED display for daylight viewing - Mains / rechargeable battery operation The DO7 digital micro ohmmeter is a practical instrument for low resistance measurement, ideal for utilities use in the workshop, field or test facilities. It is of rugged construction, contained in a sealed ABS plastic case with lid and carrying handle. The DO7 digital micro ohmmeter has many advanced features. Rechargeable batteries means real portability with more than 40 minutes of cumulative operation on the lowest ranges, and over 12 hours on all others. 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. Technical specification Measurement - 4 Terminal Kelvin/Thomson principle eliminates error due to lead resistance. Open circuit measurement voltage~2V dc Display - 0.8" LED 6,000 count with 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. Internal charger with battery state indicator Terminals - 6mm binding posts accept spade tags and 4mm banana plugs Working Temp - 0...40°C rel. humidity 80% max. non-condensing Storage Temp - -20...+50°C Mains Supply - 100/120/220/240 Volts +10% -13% 47Þ63Hz 20VA Safety - IEC 1010 Protective Class 1 EMC - Complies with EN61326 Dimensions - 343 x 327 x 152mm (W D H) approx Mass - 8 kg approx Accessories - Supplied complete with mains cord, measuring leads with Kelvin Clips, handbook and calibration certificate