Click image to enlarge  IET Labs HPRS Series User Manual Data Sheet

Features: Resistance from 1 mΩ to 10 MΩ 1 to 9 decades 0.5% or 1% accuracy 1000 V rating, higher available Power of 225 W/decade, 250 W max. or higher Rack mounting available Special and custom configurations

  Specifications:

Resistance Per Step	Decade Total (Ω)	Max* Current Per Decade (A)	Max* Power per step (W)	Temp. Coefficient (ppm/°C)
1 mΩ	0.009	6	0.036	50
10 mΩ	0.09	6	0.36	50
100 m Ω	0.9	6	3.6	20
1 Ω	9	5	25	50
10 Ω	90	1.6	25	50
100 Ω	900	0.5	25	50
1 k Ω	9 k	0.16	25†	50
10 kΩ	90 k	0.05†	25†	50
100 k Ω	900 k	V limit†	V limit†	20
1 MΩ	9 M	V limit†	V limit†	10
*Subject to 250 W max. per unit. †Subject to 1000 V (dc + ac peak) max.

Model	Dimensions	Weigth
6 Decades	43.9 cm W x 8.9 cm H x 10.2 cm D (17.3" x 3.5" x 4")	2.2 kg (4.8 lb)
7 Decades		2.4 kg (5.3 lb)
8 Decades		2.6 kg (5.7 lb)
9 Decades	48.3 cm W x 17.8 cm H x 19.7 cm D (19.0 x 7.0 x 7.8")	5.1 kg (11.2 lb)

Zero Resistance	<5 mΩ per decade at dc.
Accuracy	Option C: ±(0.5% + 20 mO) after zero subtraction; SI traceable. Option F: ±(1.0% + 20 mO) after zero subtraction; SI traceable.
Terminals	Two five-way binding posts and one ground post electrically connected to case.
Type of Resistor	Resistance wire for 0.1 Ω and under; film power resistors for 1 Ω to 100 kΩ steps; low inductance wirewound resistors for 1 MΩ steps.