PRECISION MICRO OHMMETER
Model 5893 Digital Micro ohmmeter

5893 Digital Portable Micro Ohmmeter.
An advanced microprocessor based and battery powered Micro-Ohmmeter in a sealed ABS case. 


The 5893 provides  0.1µOhm resolution resistance measurements in 6 selectable ranges from 600 µOhm to 60Ohm. 
Designed with a wide range of useful features the 5893 will meet the requirements of many International Testing Standards. 
Ideal for laboratory and test area use as well as “on site - field tests”.

The microprocessor technology provides many advanced features which include, internal digital calibration, a 6,000 count scale length and 6 resistance ranges displayed on bright easy to read LEDs. 

Lead resistance errors are eliminated by the use of a true 4–terminal, 4–wire Kelvin/Thompson circuit. Forward and reverse current with averaging is employed to remove any thermal EMF errors. 

Automatic measurements and data recording can be performed via the RS232 port to a PC or printer. 
A “Remote operation” socket for foot or hand switching with a “Print last reading” control, facilitates use in inaccessible and confined working positions. Portability of the 5893 can be enhanced with an optional battery powered computer and printer that can be housed in the lid of the instrument and is ideal for on-site calibration reports and certificates. 

Two internal re-chargeable batteries provide the test current and the supply for the measurement circuitry. The charging circuit has independent charge indicators for each battery with fast charging to 90% of capacity and automatic switching to trickle charge, for prolonged charging.
Battery power is sufficient to provide up to 1 hour of operation on the two 10A ranges and up to 20 hours on all other ranges.

A versatile, practical and simple to use low resistance measurement instrument,
offering computer/palm top recording of data to cover a wide range of applications
Model 5893 Digital Micro-Ohmmeter Technical Data

Features

  • High accuracy (0.15% to 0.2%)
  • High resolution to (0.1µOhm to 0.01Ohm)
  • Wide measurement range 
    (600.0 µOhm  to 60.0 Ohm)
  • 10 Amp measuring current
  • Fast reading rate (0.5secs)
  • 20mm high LED daylight viewing display
  • 6000 count wide display range
  • Computer output of display (RS232)
  • 4 Wire measurement system (eliminates lead resistance errors)
  • Forward and reverse current measurement
  • Auto average of forward and reverse currents
  • Battery and mains power operation
  • Internal digital calibration

Applications

  • Cable resistance tests
  • Small transformer windings
  • Small motor windings
  • Small generator windings
  • Fuses
  • Heating elements
  • Earth bonding
  • Bus-bars
  • Switchgear contacts
  • Circuit breaker contacts
  • Relay contacts
  • Electrical connections
  • Crimped joints
  • Cable joints
  • Wire wrap joints
  • Solder joints

 

 

Specification
Range Resolution Current Accuracy (1 Year)   Temperature Coefficient
(%reading + last digit)
% reading  Last digits
60 Ω 10 mΩ 1mA +/-0.15% +3 (0.004% +0.18)/ °C
6 Ω 1.0 mΩ 10mA +/-0.15% +3 (0.004% +0.18)/ °C
600 µΩ 100 µΩ 100mA +/-0.15% +3 (0.004% +0.18)/ °C
60 µΩ 10 µΩ 1A +/-0.15% +3 (0.004% +0.18)/ °C
6 µΩ 1.0 µΩ 10A +/-0.2% +6 (0.004% +0.18)/ °C
600 µΩ 0.1 µΩ 10A +/-0.2% +12 (0.004% +1.5)/ °C
Calibration Supplied with certificate, Internal digital calibration (security key protected)
Input Connections 4 x 6mm binding posts for spade terminals and 4mm banana plugs
Socket for model 5893G foot/hand switch for remote reading
Socket for model 5893A external ambient PT100 probe input
Output Connections R5232 output of display at selected 75 to 19200 baud rate
Supplies 2 internal sealed lead acid batteries supplied
100/120/220/240V. +10% -13% 47 to 63 Hz at 80VA max. Input protection 415V.RMS
Environment Working: 0 to 40şC. at 80% RH max non condensing
Storage: (-20C to +40şC)
Dimension 356mm x 270mm x 155mm high
Weight 8.2Kg

Ordering Information
5893 Instrument with mains lead, instruction manual, test certificate, batteries, case with internal accessory bag
5893B   4 x 1 meter 4mm plug leads and 4 push on clips
5893C   Standard 3 meter 4 wire 10A Kelvin leads
5893D   15 meter 4 wire 25A, Kelvin leads
5893E   Heavy duty clip on clamp Kelvin leads (3M 10A)
5893F   Heavy duty clip on clamp Kelvin leads (15M 25A)
5893G   External start foot switch
5893H   Portable PC and printer
5893J   Standard resistor calibration/test box (6 values)

 

Please email sales@hotektech.com or call 253-927-6186 if you are interested in a purchase, or
  need additional information.

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