Cropico DO4000 Handheld Digital Microhmmeter

Product Code: CRODO4000

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This portable digital micro ohmmeter is a practical instrument for low resistance measurement, ideal for use in multiple industries workshop, field or test labs.
This micro ohmmeter is of rugged construction contained in a sturdy plastic case. The Series 4000 has many advanced features, including auto ranging, forward and reverse current measurement with auto average, true current zero, digital calibration and long scale length, 4000 count and auto power down to maximise battery life.
The Series 4000 micro ohmmeters are supplied ready for immediate use with batteries and measuring leads, no extras are normally necessary.

CRODO4000 Datasheet.pdf

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

Seaward Cropico DO4000 Technical Specifications

Range	Resolution	Typical Current	Accuracy @ 20°C ±5°C 1 Year	Temperature Coefficient (°C)
4kΩ	1Ω	100μA	±(0.05% Rdg + 0.02% FS)	30ppm Rdg + 1 ppm FS
400Ω	100mΩ	1mA	±(0.05% Rdg + 0.02% FS)	30ppm Rdg + 1 ppm FS
40Ω	10mΩ	10mA	±(0.05% Rdg + 0.02% FS)	30ppm Rdg + 1 ppm FS
4Ω	1mΩ	10mA	±(0.05% Rdg + 0.03% FS)	30ppm Rdg + 4 ppm FS
400mΩ	100μΩ	10mA	±(0.05% Rdg + 0.05% FS)	30ppm Rdg + 25 ppm FS
40mΩ	10μΩ	100mA	±(0.05% Rdg + 0.01% FS)	30ppm Rdg + 25 ppm FS
Additional Specifications
Measurement	4 terminal Kelvin/Thomson principle eliminates errors due to lead resistance
Display	15mm LCD 4000 count with automatic decimal point and polarity indication
Ranges	6 automatic or manual selection with LED indication
Terminals	4mm safety sockets
Safety	EN 61010-1 EMC-3N 61236
Zero and Ave	Buttons to null measurement offsets
Protection	415V rms maximum at the measurement terminals will blow internal protection fuse
Calibration	Digital security key protected
Battery	Removable pack with 5 x 1.5V non-rechargeable batteries. Separate rechargeable pack, charger and docking station as optional extras
Dimensons	215 x 130 x 55mm (w x h x d) approx
Mass	0.8kg (2lbs)
Working Temperature	0 to +40°C relative humidity 80% max non-condensing
Storage Temperature	-20 to +50°C
Services	1 year warranty (subject to product registration with Seaward)