Model 2005 Resistance Master

The Harris IRT Rnterprises Resistance Master - Model 2005 is an excellent portable standard for periodic calibration checks of production resistance testers. It provides a precision, laboratory-quality resistance set in a rugged, lightweight, easy-to-use unit. The possibility of a calibration error occurring due to switch or lead resistance is eliminated by utilizing a true, four-wire Kelvin connection between the panel-mounted banana jack terminals and the internal precision resistors.

Use of the Model 2005 simplifies calibration checks of Harris IRT Enterprises' (and other makes) resistance test equipment. Full-scale measurement of each range of the instrument being tested can be checked directly by simply turning the Resistance Master dial to the full-scale upper-limit value of the range under test.

Two certification levels are available for the Model 2005:

1. Standard - Resistance value for each range is listed on the unit. Resistance values are based upon the values of the precision resistors used in the Model 2005.
2. Certified: Resistance value for each range is determined by comparison to a instrument whose calibration is traceable to the National Institute of Standards and Testing.

The Model 2005 is accompanied by a certificate certifying the standards comparison.

SPECIFICATIONS

RESISTANCES (nominal):
2 ohm
20 ohm
200 ohm
2000 ohm
20000 ohm
Custom resistances available.

ACCURACY:

±0.02% at 25°C.

STABILITY:

10 ppm/°C.

ENCLOSURE:

3" [76mm] wide by 4" deep [102mm] by 6" tall [152mm]
Housing approximately 1 LB [0.45kg].

Download Model 2005 Specification Sheet

Harris IRT Enterprises resistance test equipment make use of a four-terminal Kelvin measurement system. This eliminates the inaccuracies introduced by test lead and connection resistance. Four leads are required to make measurements: two current leads “I” and two voltage leads “V”. For best accuracy, each voltage and current lead should connect separately to the component under test.

Special test leads have been developed to meet special testing situations:

1. Four-Wire Kelvin Probe Set
2. Four-Wire Kelvin Clip Lead Set
3. Four-Wire Small Kelvin Clip Lead Set
4. Four-Wire Large Kelvin Clip Lead Set
5. Four-Wire Kelvin Pin Probe Set

Each set is available from Harris IRT Enterprises as an option with the purchase of a Harris IRT Enterprises Resistance Tester.

Download Test Leads Specification Sheet