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Cropico RH9A-4 High Resistance Decade Box

Seaward
SKU: CROPRH9A4
9 decade resistance calibration box covering a comprehensive range of variable resistances from 1kΩ up to 1TΩ with a 1kΩ resolution.
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Available to order - contact for lead time

Cropico RH9A-4 High Resistance Decade Box

The Cropico RH9A-4 is a high resistance, high voltage decade resistance box that has been designed using the Cropico high quality SP1 switch and specially selected resistors. The RH9A-4 decade box is ideal for the calibration of insulation test equipment that has a voltage rating of up to 5kV. This high precision resistor substitution box has nine decades for resistance measurement from 1 kilo ohm to 1 Tera ohm, perfectly suitable for use in both the laboratory workshop or in the field. With a resolution of 1kΩ and an accuracy from 0.1% to 2% depending on resistor setup, this resistance calibration box is a very precise instrument with an incredible range of high ohm resistance decades available.

Decade Accuracy Max V/Step Power Rating
10 x 1kΩ ±0.1% 25V 1 Watt
10 x 10kΩ ±0.1% 100V 1 Watt
10 x 100kΩ ±0.1% 250V 1 Watt
10 x 1MΩ ±0.1% 500V 1 Watt
10 x 10MΩ ±1% 4000V 1.5 Watts
10 x 100MΩ ±1% 4000V 1.5 Watts
10 x 1GΩ ±1% 4000V 3.5 Watts
10 x 10GΩ ±1% 5000V 3.5 Watts
10 x 100GΩ ±2% 5000V 1.3 Watts
Specification
  • Voltage Coefficient: 1ppm/V
  • Temperature Coefficient: 50ppm/°C - 2000ppm/°C 
  • Dimensions: 460 x 380 x 160mm 
  • Weight: 9kg