Ohm Labs 2000 low resistance standards

Ohm Labs 2000 low resistance standards

The Ohm Labs 2000 low resistance standards are designed as primary laboratory references for maintaining the unit of resistance below 1 ohm. Based on recent progress in material processing, these standards have been developed to ensure good long-term stability. Models 2000, 2001 and 2002 (1 ohm, 0.1 ohm and 0.01 ohm) have a nickel alloy element. With careful heat treatment low temperature coefficients can be realized. The standards are placed in a hermetically sealed housing to be relatively immune to changes of ambient temperature and relative humidity.

You can use these models in oil at a constant temperature of 25°C or in air at 23°C. Models 2003, 2004 and 2005 (1 milli-Ohm to 10 micro-ohm) are made with Manganin alloy elements. They are fixed in a perforated jug for better heat dissipation. These models are recommended for use in stirred oil at 25 °C. All models are supplied with ISO 17025 accredited calibration including temperature coefficient data. The 2000 series are available for intermediate values by special order.

Overview available models

Model Number	Nominal Resistance	Tolerance in ppm	Rated Current	Temperature Coefficients
2000	1 Ohm	<5	1 Amp	< 2 ppm / °C
2001	0.1	<5	3
2002	0.01	<15	10
2003	0.001	<20	30	< 15 ppm / °C

 

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