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Range
: 0.2 Micro - Ohms to 11 ohms
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Accuracy
: 0.1% (or ±1 Slide wire division whichever is greater)
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Variable
Standard Resistance : Provided with 10 steps of milli-ohms
and one slide wire of 10 milli-ohms divided into 500 equal parts
so that each division corresponds to .02 mill ohms (or 20 micro
ohm) Slide wire is graduated in steps of 1 milli-ohms so that
readings are measured easily. all resistances are of aged Manganin
wire which have very very low temp. coefficient i.e. it will have
almost zero drift in values with respect to temp. variation from
10° to 50°C. The manganin wire on bakelite spool is double wound
to minimise inductive effect.
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Multiplier
: 5 Ranges (0.01, 0.1, 1, 10 & 100)
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Repeatability : All switches are of best quality & have
minimum 25,000 contacts with any wear and tear. Also they are very
rugged & of heavy copper sheet to minimise contact resistance.
Morever manganin wire has maximum stability so you will get best
results years after years. Slide wire is provided with silver
contact provision.
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Accessories
: DC source of 10 Amps, spot reflecting Galvanometer Conductivity
attachment for holding sample of wire.
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Other
Models :
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KDB-2041
(Senior Kelvin Double Bridge)
: (Range 0.02 Micro Ohm to 1.1 Ohms) Provided with in built oil
cooling system of slide wire ideal to measure very very low
resistance i.e. of Armoured cable, very thick overhead
transmission wire, very thick copper wire bar etc.
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KDB-2061
(Precision Kelvin Double Bridge) Range 2 Micro ohm to 110 ohms
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KDB-2081
(Standard Kelvin Double Bridge) Range 20 Micro ohm to 1100
ohms
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Application
Spectrum : Quality control for manufacturing units
for cables, conductors, distribution transformer etc., impurity
determination in wire & sheet metal industries, temperature rise
test in transformer industries.
