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Industrial Kevin Double Bridge

Model : 55X-IK

Description:-

“RAI” INDUSTRIAL KELVIN DOUBLE BRIDGE  Model:- 55X-IK is important instruments in the measurement of resistance as low as 0.2 Micro ohms to highest value of 11 ohms. Industrial Kelvin Bridge employs 10 Standard Resistors drawn from well aged manganin sheet having excellent stability & reproducibility. Manganin has the quality of very low temperature co-efficient which is a critical parameter for resistance standards manufacturing. Four standard decade dials, ratio selector & plug keys facilitate accurate null detection.

SPECIFICATION:-

 

Range of measurement

0.2 micro-ohm to 11 ohm

Accuracy

Below 0.0001 ohm

+/- 0.2%

+/- 1 slide wire division

 

0.0001 ohm to 0.01ohm

+/- 0.1%

 

above 0.01 ohm

+/- 0.05%

Slide wire

0.001 ohm divided in 500 equal divisions.

Variable Standard Resistance

10 steps of 0.01 ohm

Multiplying ratio

0.01, 0.1, 1, 10 and 100

                                                                                                                                                                                                                                               

Range Factor Setting

Total Range

  Resolution

0.01

0.0011 ohm

0.2 micro-ohm

0.1

0.011 ohm

2 micro-ohm

1.0

0.11 ohm

20 micro-ohm

10

1.1 ohm

0.2milli-ohm

100

11.0

2.0 milli-ohm

Switches

Hard silver plated giving constant values up to 10,000  operations

Current source

10 Amp DC.

FEATURES:-

  • Precision measurement range from 0.2 microhm to 11 ohm.
  • Four terminals for accurate results.
  • Manganin wire having exceptionally low temperature co-efficient.
  • Remarkably long lasting resistance values with excellent stability.
  • Reproducible measurements.
  • Perfectly aged Manganin coils / strips employed in Kelvin Bridges.
  • Click type hard silver plated self-cleaning switches.
  • Wonderful elastic limits of MANGANIN.
  • Solid brass blocks for positive plug contacts
  • Excellent calibration stability.

Accessories for Industrial Kelvin Double Bridge:-

Following accessories are required with the Industrial Kelvin Double Bridge as support accessories to complete the measurement system. The Bridge becomes the complete measurement system in conjunction with the following accessories:

  • Conductivity Attachment
  • High Amperage DC Source ( 0 to 50 Amp. suitable for bridge)
  • Spot Reflecting Galvanometer
  • Analogue Galvanometer with selector switch for protection of Spot Reflecting Galvanometer.

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