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100 ohms
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±2ppm Stability
±0.5ppm Calibration Uncertainty
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100 Ohm Precision Resistor

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Features
Measured Accuracy: to a value within ±0.5ppm measured with 10mA at 23ºC.
Nominal Value: 100 ohms
Calibration Uncertainty: ±0.5ppm
Stability (1 Year): Typically ±2ppm
Temperature Coefficient: ±1.5ppm/ºC
(temperature correction graph provided to correct out temperature effects)
Max. Working Operating Current: 110mA
4-Wire Operation
Calibration Cycle: One year
Certified to N.I.S.T.

Optional Accessories
CAB023: The CAB023 is a low thermal EMF retractable sheath banana plug patch cord set. These low thermal cables minimize thermal errors so accurate low voltage measurements can be made. Each set includes 2 test leads (one black and one red).
CAB024: The CAB024 is a low thermal EMF spade lug patch cord set for low voltage measurements. These low thermal cables minimize thermal errors so accurate low voltage measurements can be made. Each set includes 2 test leads (one black and one red).

Certification: A Certificate of Compliance is issued with each new instrument to certify the calibration traceable to U.S. N.I.S.T. (INCLUDED).

Related Models
> Model PCR100 - 100 Ohm Current Resistor
   Model 521/RA5 - ±20ppm to 100Vdc
   Model 522 - ±20ppm to 100Vdc
   Model 523 - ±4ppm to 100Vdc
 

GENERAL DESCRIPTION
The Krohn-Hite PCR100 Precision Current Resistor is a highly accurate on-site current resistor (standard) with excellent temperature stability that can be used from 20°C to 26°C. A calibration graph is supplied with each PCR100 that shows all corrections in 0.5°C increments, reducing uncertainty to near zero. No cumbersome oil or air baths are required. Because the PCR100 is small and rugged, it is easy to transport. Care has been taken to reduce resistance changes brought about by thermal and mechanical shock. Retrace (permanent shift in resistance) is typically <2ppm after cycling between 0°C and 50°C.

SALIENT FEATURES
The PCR100 is designed for use when calibrating the Krohn-Hite Model 523 DC Source/Calibrator. Also, with its outstanding performance, the PCR100 can be used for other calibration laboratory purposes where a highly accurate and stable current resistor is needed.

SPECIFICATIONS
Measured Accuracy: ±0.5ppm at 10mA, 23ºC.
Nominal Value: 100 ohms ±100ppm
Calibration Uncertainty: ±0.5ppm
Stability (1 Year): ±6ppm
Temperature Coefficient: ±1.5ppm/ºC; (best stright line method, 18ºC to 26°C, a graph in 0.5º increments is provided with each resistor).
Max. Working Current: 110mA
Max. Working Voltage: 11V

GENERAL SPECIFICATIONS
Retrace Error (hysterisis):
23ºC to 18ºC to 23ºC cycle: negligible resistance shift
23ºC to 28ºC to 23ºC cycle: negligible resistance shift
23ºC to 0ºC to 23ºC cycle: <2ppm resistance shift
23ºC to 40ºC to 23ºC cycle: <2ppm resistance shift
Operating Temperature Range: 20°C to 26°C
Storage Temperature: 0°C to 50°C
Size: 3.318" high x 4.76" wide x 3.165" deep.
Weight: 1.1 lbs net, 2 lbs shipping.

OPTIONAL ACCESSORIES
CAB-005: Cable, Two Conductor Shielded Balance Line
CAB-018: Cable, Multi-stacking Double Banana plug
CAB-023: Cable Set, Low Thermal EMF Retractable Banana
CAB-024: Cable Set, Low Thermal EMF Spade Lug

The PCR100 is used in the calibration of the Krohn-Hite Model 521, 522, 523 and CR-103 Precision Source/Calibrators.

ORDERING INFORMATION
PCR100: 100 Ohm Precision Current Resistor

Specifications are subject to change without notice.

Copyright © April 21, 2006 Krohn-Hite Corporation. All rights reserved.