DECADE RESISTANCE BOX, PL 33

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 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.

Features
Specification
Application
Brochure/Documents

Manganin Resistance Coils
Non-inductively wound & aged resistors
Low temperature co-efficient
Sturdy, rugged & trouble free service
4, 6, 7 & 8 decade models
Wide choice of models from 0.01 ohm to Meg ohm
Very low contact resistance switches

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

Decade	Ohms/Step	1M	100k	10k	1k	100	10	1	0.1	0.01
Accuracy	± %	0.5	0.5	.05	0.05	0.05	0.05	0.05	0.3	2
Imax	Amp	0.0005	0.001	.007	0.02	0.07	0.2	0.7	2	5
Cat No.	Decades (Ohms/Step)
PL33.01						100	10	1	0.1
PL33.02					1k	100	10	1
PL33.03				10k	1k	100	10
PL33.04					1k	100	10	1	0.1	0.01
PL33.05				10k	1k	100	10	1	0.1
PL33.06			100k	10k	1k	100	10	1
PL33.07			100k	10k	1k	100	10	1	0.1
PL33.08		1M	100k	10k	1k	100	10	1	0.1
PL33.09			100k	10k	1k	100	10	1	0.1	0.01