Resistors And Passive Components

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Threaded Thermowell

Feature Rugged construction protects temperature element from abrasion, Provides pressure tight attachment to a vessel .
Application Power, Oil and Gas, Metal and Refractories, Cement, Chemical, Glass and Ceramic, Paper, Fertilizer .
Number Of Flower Flanged Threaded Welded
Construction Drilled Bar Stock Fabricated Tube
Special Thermowells Van Stone Solid Sintered Tungsten Carbide Ceramic Tube

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Decade Resistance Box

Effect of temperature % per 10 ºCC 0.01 & 0.1 ohm - 0.1, 1 to 10 k ohm – 0.02, 100k to 1M ohm - 0.10

Decade Resistance Box consists of decade switches with resistors. Each decade switch has 1-10 positions in addition to zero position. Specially designed switch with self cleaning and silver plated contacts ensure very low contact resistance and long life.Resistances of 10 k ohms & lower are made of non-inductively wound selected manganin. Coils are heat treated and aged for long term stability.100k and 1M ohm decades have selected & precision metal film resistors of very low temperature co-efficient. All the decades are housed in metallicwooden rugged casing and are provided with knobs having ribs for comfortable operation. Decade Resistance Boxes are available with 4, 6, 7 & 8 decades and offer a wide choice of resistances to meet with almost every requirement in industry & laboratories.

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PL 33 Decade Resistance Box

Accuracy At 27 ºC, see table below
Effect of temperature % per 10 ºC 0.01 & 0.1 ohm - 0.1 1 to 10 k ohm – 0.02 100k to 1M ohm - 0.10
Current carrying capacity Max. value Imax as per table below
Residual resistance 0.002 ohm per dial, all dials set at zero
High voltage test 1 kV between terminal and instrument case
Ambient 15-45 ºC; RH 75% average, 90% maximum

Description

Resistances of 10 k ohms & lower are made of non-inductively wound selected manganin. Coils are heat treated and aged for long term stability.

100k and 1M ohm decades have selected & precision metal film resistors of very low temperature co-efficient. All the decades are housed in metallic/wooden rugged casing and are provided with knobs having ribs for comfortable operation. Decade Resistance Boxes are available with 4, 6, 7 & 8 decades and offer a wide choice of resistances to meet with almost every requirement in industry & laboratories.