– High accuracy from 600 microhms to 60ohms ranges
– LED display for daylight viewing
– Mains / rechargeable battery operation
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 |
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