Cropico DO4A

Portable digital ohmmeter with 415V protection

  • 10 micro ohm resolution on 40 milli ohm range
  • Input protection up to 415 Volts rms
  • 6 push button ranges 40 milli ohm... 4 kilo ohm with long scale length
Cropico DO4A
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Cropico DO4A

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This portable digital ohmmeter is a practical instrument for low resistance measurement, ideal for use in the workshop, field or test facilities. It is of rugged construction contained in an aluminium case with tilt handle.

The DO4A has many advanced features, including protection up to 415 volts rms, digital calibration and long scale length, 4,000 count. The rechargeable sealed lead acid battery means real portability with more than 14 hours continuous operation, without the problems normally associated with other battery types. Full measurement capability is maintained whilst charging.

Cropico DO4A
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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 Push button selected with LED indication
Auto Zero Permits the automatic zero of amplifiers and external circuits eliminating errors due to thermal emf.
Calibration Digital, security key protected
Protection 415 rms maximum at input terminals
Battery 6 Volt 2.8 Ah sealed lead acid, replaceable. Operating Time: 14 hours typical on bottom range, 28 hours typical on other ranges. Internal charger with automatic switch-off to prevent deep discharge.
Executive Lead Pack This lead pack consists of four test leads, 1 metre long, with 4mm banana plugs, 4 crocodile clips, 4 test prods and 2 Kelvin Clips (combined current and potential clips).
Terminals 4mm binding posts accept spade tags and 4mm banana plugs
Terminals 4mm safety sockets
Working Temp 0...40°C rel. humidity 80% max. non-condensing
Storage Temp -20 ... +50°C
Mains Supply 100/120/220/240 Volts +10% -13%. 47 ... 63Hz. 20VA
Safety IEC 348 Protective Class 1
Dimensions 215 x 250 x 88mm (W D H): 1/2 19" rack. 2U high (467 x 374 x 216mm packed in card carton)
Mass  3.5kg (4.5kg packed in card carton)
Accessories Supplied complete with mains cord, measuring leads with Kelvin Clips, handbook and certificate of conformity

 

 

Carrying Case (CB01)

Carrying bag to go with D04A View Product..

CH01 Concentric Handspike

Concentric handspikes View Product..

CO2

Adjustable clamp support, measurement length of up to 1,000mm.   View Product..

CO2A

Clamping device, designed for cross sections of 1mm² to 1,000mm².   View Product..

CO3

Clamping device, designed for scorr sections of 1mm² to 1,000mm².   View Product..

HS01

Duplex handspikes with 3 metre lead length compatible with D07. View Product..

HS02

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

LS03

2 x Large Kelvin clips with 3 metre lead length. Kelvin clips accept cables and bars up to 38mm diameter. Suitable for use with DO4A, DO5000, DO6, DO7. View Product..

LS04

2 x Large Kelvin clips with 3 metre and 15 metre lead length. Kelvin clips accept cables and bars up to 38mm diameter. Suitable for use with DO4A, DO5000, DO6, DO7. View Product..

LS05

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..

LS06

Standard Kelvin lead set, lead length 1 metre with miniature Kelvin clips (KC2) and spade tags. Suitable for use with DO4A. View Product..

       
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