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Cropico DO4002

Cropico DO4002

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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 DO4000 Series Comparison
Features DO4000 DO4001 DO4002
True 4 terminal measurement eliminates lead resistance errors
Measuring range from 40 milli ohm to 4 kilo ohm  
Measuring range from 4 milli ohm to 400 ohm    
10 micro ohm resolution  
1 micro ohm resolution    
True zero capabilities
Digital Calibration
Auto / Manual range selection
Automatic temperature compensation    
Temperature measuring range -50 to +800°C    
Open circuit lead warning LED
100mA measuring current  
1A measuring current    
Auto power off to maximise battery life
Cropico DO4002
to Request a Quote

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


Rechargeable battery pack includes battery cassette with rechargeable batteries. Docking station also acts as bench stand and charger. View Product..


Replaceable battery holder with non-rechargeable batteries View Product..


Replaceable battery holder with rechargeable batteries View Product..

Carrying Case (CB02)

Carrying bag with shoulder strap and lead pouch that has a clear front panel to enable full operation. View Product..

CH01 Concentric Handspike

Concentric handspikes View Product..


Duplex handspikes with 3 metre lead length compatible with D06. View Product..


Duplex handspikes with 3 and 15 metre lead length compatible with D06 View Product..


Lead set with 3 metre leads and terminated with large Kelvin clips type KC3. View Product..


Lead set with 3 and 15 metre leads and terminated with large Kelvin clips type KC3. View Product..


Comprising of 4x 1 metre leads with banana plugs 4x crocodile clips, 4xtest prods 2x brass Kelvin clip (KC1) suitable for use with DO4A, DO5000, DO6, DO7. View Product..


Lead set with 1 metre leads terminated in miniature Kelvin clips type KC2. View Product..

Rubber Boot

Rubber Boots View Product..

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