1000 series Low Resistance Standards

HIGH STABILITY
HIGH IMMUNITY FROM
ENVIRONMENTAL EFFECTS
FOR USE IN AIR
– NO OIL BATH NEEDED
1 Ω AT 1 A
TO 1 μΩ AT 100 A
IMPROVED SPECIFICATIONS

The 1000 series of standards are highly stable low value resistors designed for laboratory or on-site calibration use.

Each standard is calibrated at several current levels, for complete characterization. Up to 150 % current may be applied for brief periods without damage.

Their low temperature and power coefficients allow them to be used in a variety of environments without loss of accuracy. They are not significantly affected by changes in barometric pressure or relative humidity, and are will withstand moderate vibration and shock. They feature low reactance, allowing their use as both dc or ac standards.

All models are housed in a rugged, die-cast aluminum case. Internal shock-absorbing construction reduces the possibility of shifts in value due to vibration or impact.

All resistance standards include ISO 17025 Accredited calibration, as well as temperature characterization.

An optional RTD temperature sensor can be bonded to the element on all models. Decade values are standard; other values are available.

Model	Current	Resistance	TCR	Accuracy	12 Month Stability
1000	1 A	1 Ohm	<1 ppm/°C	<5 ppm	<2 ppm
1001	3 A	0.1	1	10	<5
1002	10 A	0.01	2	20	<10
1003	30 A	0.001	5	50	<20
1004	100 A	0.000 1	20	200	<50
1005	100 A	0.000 01	50	500	<100
1006	100 A	0.000 001	50	1000	<200
For special values, use the below examples: 1 =1000 series; X = Resistance; Y = Multiplier
Model	Current*	Resistance			Accuracy
1 05 0	2 A	0.5 Ohm			Use next lower
1 25 4	60 A	0.25 mOhm			decade ohm accuracy

Notes

* Special value rated currents are based on power(Current x Current x Resistance) not exceeding one watt.
Initial accuracy at time of manufacture.

Physical

22.8 x 12.5 x 12.5 cm / 9 x 5 x 5 in; 2.5 kg / 5 lbs