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數(shù)字微歐計(jì)

  • 產(chǎn)品型號(hào)：Cropico DO4002
  • 更新時(shí)間：2024-06-20

簡(jiǎn)要描述：Cropico DO4002數(shù)字微歐計(jì)

產(chǎn)品詳情
The DO4002 digital microhmmeter offers true portability without any sacrifice to accuracy or functionality. This micro ohmmeter is a ruggedly constructed instrument is housed in a stylish plastic case with easy to use keyboard. The measured values are displayed on a large LCD screen which allows for ease of viewing. Automatic or manual range selection is available and many advanced features are included.



 

Cropico DO4002
Technical specification
 

Measurement
4 Terminal Kelvin/Thomson principle eliminates error due to lead resistance. Open circuit measurement voltage approx. 5V dc.
Display
15mm LCD 4,000 count with automatic decimal point and polarity indication
Ranges
6 Ranges with automatic or manual selection
Auto Zero
Permits the automatic zero of amplifiers and external circuits eliminating errors due to thermal emf.
Calibration
 Digital
Protection
415 rms maximum at input terminals
Battery
5 AA size manganese Alkaline supplied with unit. Rechargeable battery pack option includes 5 AA size Ni/Mhd, housed in removable cassette plus docking station and charger. Automatic Power OFF ensures maximum battery life
Temperature Compensation
The model 4002 also includes temperature compensation which references the measurement to an ambient temperature of 20 Deg.C. Coefficients for copper and aluminium are pre programmed and a user coefficient facility enables coefficients for any material to be entered.
Temperature Measurement
The Model 4002 also include temperature measurement over the range -50...+800 Deg C. Using a Pt100 temperature probe which may be ordered as an option.
Terminals
4mm safety sockets
Working Temperature
0...40°C rel. humidity 80% max. non-condensing
Storage Temperature
-20 ... +50°C.
Charger Mains Supply
100/120/220/240 Volts +10% -13%. 47 ... 63Hz. 20VA
Safety
EN61010-1 EMC - EN61326
Dimensions
215 x 130 x55mm （W H D）
Weight
0.8kg
Accessories
Supplied complete batteries, measuring leads with Kelvin Clips, handbook, and calibration certificate


Resistance ranges

Range
Resolution
Typical Current
Uncertainly @ 20°C ±5°C, 1 year
Temperature Coefficient / °C
400ohm
100 mohm
1mA
±（0.05% Rdg + 0.02% FS）
30 ppm Rdg + 1 ppm FS
40ohm
10 mohm
1mA
±（0.05% Rdg + 0.02% FS）
30 ppm Rdg + 1 ppm FS
4ohm
1 mohm
100 mA
±（0.05% Rdg + 0.02% FS）
30 ppm Rdg + 1 ppm FS
400mohm
100 µohm
 1A
±（0.05% Rdg + 0.03% FS）
30 ppm Rdg + 4 ppm FS
40mohm
10 µohm
 1A
±（0.05% Rdg + 0.05% FS）
30 ppm Rdg + 25 ppm FS
4mohm
1 µohm
 1A
±（0.05% Rdg + 0.01% FS）
30 ppm Rdg + 25 ppm FS

 



 

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