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  • 产品型号:Cropico DO7e
  • 更新时间:2023-01-02

简要描述:Cropico DO7e微欧计

产品详情
The DO7e is a practical low cost micro ohmmeter for low resistance measurement, ideal for utilities in the workshop, field or test facilities. This micro ohmmeter is of rugged construction, contained in a sealed ABS plastic case with lid and carrying handle.
 
The DO7e microhmmeter has many advanced features, including protection up to 415 volts rms at the measuring terminals, digital calibration and long scale length, 6,000 count. The measuring ranges may be automatically or manually selected.
 
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
Cropico DO7e
Technical specification
 

Measurement
4 Terminal Kelvin/Thomson principle eliminates error due to lead resistance. Open circuit measurement voltage~5V dc
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 gives a minimum of 1 hour of continuous measurement on the lowest 10 amp ranges and 20 hours on all other ranges. 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
10/230 Volts +10% -10% 47Þ63Hz 20VA
Safety
EN 61010-1
EMC
Complies with EN61326
Dimensions
343 x 327 x 152mm (W D H) approx
Mass
6kg approx
Accessories
Supplied complete with mains cord, measuring leads with Kelvin Clips, handbook, and calibration certificate

 
Resistance ranges

Range
 Resolution
Typical Current
Accuracy @ 20°C ±5°C, 1 year
Temperature Coefficient / °C
600Ohm
100mOhm
1mA
±(0.25% Rdg +0.05% FS)
40 ppm Rdg + 30 ppm FS
60Ohm
10mOhm
10mA
±(0.25% Rdg +0.05% FS)
40 ppm Rdg + 30 ppm FS

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