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Cropico DO4000 Digital Milliohmmeter
Includes: Cropico DO4000, non rechargeable batteries, lead set LS06-P, operating handbook and calibration certificate.
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The Cropico DO4000 portable digital milliohmmeter is a practical instrument for low resistance measurement, ideal for use in the workshop, field or test facilities. This milliohmmeter is of rugged construction contained in a sturdy plastic case.
The Cropico 4000 employs the four terminal resistance measurement method to eliminate the effect of lead resistance errors. The measured values are displayed on a 4-digit LCD display; an overflow of the selected range is also indicated.
Simple push button selection of the range required plus and auto range feature ensures the ohmmeters may be easily used by unskilled personnel, error and status warnings are illuminated when appropriate. The utmost care has been used to ensure that the ohmmeters will withstand accidental mains voltage applied to the measuring terminals, but it is not recommended that voltage should be applied.
True 4 terminal measurement eliminates lead resistance errors.
Measuring range from 4 milli ohm to 4 kilo ohm.
Temperature compensation (using PT100 probe).
10 micro ohm resolution.
True zero capabilities.
Auto / Manual range selection.
Open circuit lead warning LED.
100mA measuring current.
Auto power off to maximise battery life.
|Range||Resolution||Typical Current||Accuracy @ 20°C ±5°C 1 Year||Temperature Coefficient (°C)|
|4 kΩ||1 Ω||100 μA||±(0.05% Rdg + 0.02% FS)||30 ppm Rdg + 1 ppm FS|
|400 Ω||100 mΩ||1 mA||±(0.05% Rdg + 0.02% FS)||30 ppm Rdg + 1 ppm FS|
|40 Ω||10 mΩ||10 mA||±(0.05% Rdg + 0.02% FS)||30 ppm Rdg + 1 ppm FS|
|4 Ω||1 mΩ||10 mA||±(0.05% Rdg + 0.03% FS)||30 ppm Rdg + 4 ppm FS|
|400 mΩ||100 μΩ||10 mA||±(0.05% Rdg + 0.05% FS)||30 ppm Rdg + 25 ppm FS|
|40 mΩ||10 μΩ||100 mA||±(0.05% Rdg + 0.01% FS)||30 ppm Rdg + 25 ppm FS|
|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.|
|Working Temperature||0 to +40°C relative humidity 80% max non-condensing.|
|Storage Temperature||-20 to +50°C.|
|Dimensons||215 x 130 x 55 mm (w x h x d) approx.|
|Weight||0.8 kg (2lbs).|
|Cropico DO4000 warranty||1 year (subject to product registration with Seaward).|
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|4000-01||Rechargeable battery pack includes battery cassette with rechargeable batteries.
Docking station also acts as bench stand and charger.
|4000-02||Replaceable battery holder with non-rechargeable batteries.||100124|
|4000-03||Replaceable battery holder with rechargeable batteries.||100125|
|CB02||Carrying bag with shoulder strap and lead pouch.||200290|
|HS01-P||2 x Duplex handspike with 3m lead length.||190077|
|HS02-P||Duplex handspikes with 3 and 15m lead length.||190057|
|LS03-P||Lead set with 3m leads terminated in large Kelvin clips type KC3.||190045|
|LS04-P||Lead set with 3 and 15m lead length terminated in large Kelvin clips type KC3.||190046|
Lead set with 4 x 1m leads terminated in banana plugs, 4 x crocodile clips,
4 x test probes and 2 x Kelvin clips type KC1.
|LS06-P||Lead set with 1m leads terminated in miniature Kelvin clips type KC2.||190050|
|PT01-4000||Rod type Pt100 probe with 2m lead.||190035|
|PT03-4000||Stubby Pt100 probe for ambient temperature measurement.||190037|