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 4002
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.
Case Studies
Bender specifies Cropico for MEIGaN compliance
Original article from 2008. A company which specialises in the manufacture of sensitive insulation monitoring devices and on-line earth fault location systems for the healthcare ...
High flying Cropico ohmmeter solves aircraft corrosion threat
The Royal Netherlands Air Force is using a high performance Cropico ohmmeter as an integral part of a maintenance programme designed to identify and reduce the potential for airfr...
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Technical Specifications
| Technical specification | |
|---|---|
| Measurement | Default Spec Value4 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 |
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