Phone: 253-927-6186
 Email: sales@hotektech.com
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DRM-40 Micro-ohmmeter. Resistance Range 0,01µΩ to 200Ω, Current 5 Amp.
The DRM-40 micro-ohmmeter can be used to measure very low resistances which vary
from 0,01micro ohm to 200 ohm. Its very wide precision range enables the user to accomplish a great
variety of measurements without having to own many instruments.
The DRM-40 uses the four-pin resistance measurement system, which consists of injecting a current with
two cables connected at each end of the joint to be tested. Then, the cables are installed which allow to
read the tension on each side of the part to be tested in order to measure the resistance.

DRM-40 Micro-ohmmeter

Model  Description 
DRM-40  DRM-40 Digital Micro-ohmmeter.

The DRM-40 uses the four-pin resistance measurement system, which consists of injecting a current
with two cables connected at each end of the joint to be tested.
Then, the cables are installed which allow to read the tension on each side of the part to be tested in
order to measure the resistance. This eliminates any uncertainty linked to resistance of the contacts.
The instrument is equipped with a microprocessor which allows to eliminate the gaps and parasite voltages.
Thanks to its unique filtering system, the DRM-40 can be used in spite of the presence of intense magnetic fields.

Uses the four point measuring method.
Displays three measurement currents of 5A, 250mA and 5mA which automatically adjust themselves.
Automatic stop mechanism of the instrument after 2 min. in idle mode.
Automatic stop mechanism of the backlighting system after 30 sec.
The LCD (Liquid Crystal Display) displays the results in big letter casings that are easy to read.
A set of standard connecting cables with "alligator" pliers comes with the instrument.

Micro ohmmeter specification
Precision  0,1% of the reading, +/- 2 counts 
Measurement Range  0,01µΩ to 200Ω 
Resolution  4 ¾ numbers 
Running Temperatures  -20°C to +50°C (-4° F to 122° F) 
Storage Temperatures  -40°C to +50°C (-40° F to 122° F) 
Humidity  0 to 95% non condensed. Submersible, rain proof 
Measurement Current  5 mA, 250 mA, 5A 
Autonomy  more than 5000 measurements, at 5A
more than 10 000 measurements, for the other currents 
Battery  Six (6) 1.2V, 2.1Ah rechargeable "A" NiMh batteries 
Charger  12V 1A adapter with sealed connector, available for 110V or 220V 
Display  Liquid crystal 128 X 64 dots, wide ranging temperatures
2.36 X 1.62 in. (60 X 41 mm)
2 back-lighting intensities (100%, 50%)8 X 4.5 X 2 in. 
Size & Dimension  (203.3 X 114.3 X 50.8 mm) 
Weight  1.9 lbs (0.86 kg) 

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Company

  • Hotek Technologies, Inc
  • tel: 253-927-6186
  • sales@hotektech.com
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