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Cropico RH9A

Cropico RH9-A

High resistance, high voltage decade resistance box with SP1 switch


1, 3, 6 & 9 decades available
Range 1 kilo ohm to 1 tera ohm
Max Voltage 5kV
Accuracy ± 0.1%
Portable case

Cropico RH9A Decade Resistance Box

Designed using the Cropico high quality SP1 switch combined with specially selected resistors, this range of high ohm resistance decades is ideal for the calibration of insulation test sets having a voltage rating up to 5kV.

Housed in a rugged carrying case and available in either 3, 6, or 9 decades the RH9A series covers the range 1 kilo ohm to 1 tera ohm and is equally at home in the laboratory workshop or field application.

A single decade unit is also available with 10 switched values from 1 kilo ohm to 1 tera ohm. Supplied complete with high voltage test leads 1 meter in length and calibration certificate.

Technical specification

RH9A-1 RH9A-2 RH9A-3 RH9A Decade Accuracy @ certified voltave 1kV max Max V/Step Power Rating Temp Coefficient
    10x1kΩ ±0.1% 25V 1 watt ±50ppm/°C
    10x10kΩ ±0.1% 100V 1 watt ±50ppm/°C
    10x100kΩ ±0.1% 250V 1 watt ±50ppm/°C
  10x1MΩ ±0.1% 500V 1 watt ±50ppm/°C
  10x10MΩ ±1% 4000V 1.5 watts ±100ppm/°C
  10x100MΩ ±1% 4000V 1.5 watts ±100ppm/°C
  10x1GΩ ±1% 4000V 3.5 watts ±100ppm/°C
  10x10GΩ ±1% 5000V 3.5 watts ±100ppm/°C
  10x100GΩ ±1% 5000V 1.3 watts ±2000ppm/°C

RH9A-5 High Voltage Resistance Decade Box with SP1 Switch Specifications

 Value  Accuracy @ Certified Voltage 1kV Max  Max V/Step   Power Rating  Temperature Coefficient
1kΩ  ±0.1%  500V  1W  ±50ppm/°C
10kΩ  ±0.1%  500V  1W  ±50ppm/°C
100kΩ  ±0.1%  500V  1W  ±50ppm/°C
1MΩ  ±0.1%  500V  1W  ±50ppm/°C
10MΩ  ±1%  4000V  1.5 watts  ±100ppm/°C
100MΩ  ±1%  4000V  1.5 watts  ±100ppm/°C
1GΩ  ±1%  5000V   3.5 watts  ±100ppm/°C
10GΩ  ±1%  5000V   3.5 watts  ±100ppm/°C
100GΩ  ±2%  5000V   1.3 watts   ±2000ppm/°C
1TΩ ±2%  5000V   1.3 watts   ±2000ppm/°C

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