Barletta Apparecchi Scientifici Srl
CR
Calibration Resistors
CROPICO CR



CR Data Sheet
Click to view in PDF format  (46KB)
  • Low Capacitance and Low Inductance Design

  • High Accuracy 0.02%

  • Suitable for Direct Current & Technical Frequencies

  • Oil-filled Design Ensures Great
    Long Term Stability < 0.01% over many years



This range of low cost 4 terminal calibration resistors combine high accuracy, class 0.02, long-term stability and permanence of calibration in a compact unit.
Constructed using carefully selected low temperature coefficient Manganin or Zeranin wire, depending upon value, and mounted to ensure mechanical stability, these resistors will provide a cost effective addition to any laboratory or workshop.

Typical applications include:
calibration reference, accurate current measurement, instrument calibration and accurate shunt resistor.

Main areas of application:
- for tests of measuring bridges or electrical temperature measuring equipment
- for laboratory setup of a Wheatstone bridge
- for a defined current characteristic at a defined voltage
- as shunt resistor for current measurement
- as part of standard equipment in research laboratories


A variety of values are available, see table below:


CR Technical Specifications

Type

Nominal Value

Accuracy %

Temperature Coefficient

Max. Current in air

Nominal Voltage at Potential Terminals

CR/0.001

1 mΩ

0.05

10 ppm/ C

30 A

30 mV

CR/0.01

10 mΩ

0.03

10 ppm/ C

14 A

140 mV

CR/0.1

100 mΩ

0.02

10 ppm/ C

5 A

500 mV

CR/1

1 Ω

0.02

1 ppm/ C

1.5 A

1.5 V

CR/10

10 Ω

0.02

1 ppm/ C

0.5 A

5 V

CR/100

100 Ω

0.02

1 ppm/ C

0.15 A

15 V

CR/1 k

1 kΩ

0.02

1 ppm/ C

45 mA

45 V

  • Size: 38 x 97 x 41 mm ( 61 mm with terminals ) / Weight: 250 g.