Cropico RH9A Series

High resistance, high voltage decade resistance box with SP1 switch

- Max Voltage 5kv
- Accuracy ± 0.1%
- Range 1kΩ to 1TΩ

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Cropico RH9A

RH9A High Resistance / High Voltage Decade Boxes - Total Resistance 1 Terraohm - Resolution 1 kilohm - Max Voltage 5000 Vdc.

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 with a voltage rating up to 5kV. Housed in a rugged plastic carrying case with up to 9 decades the RH series covers the range 1 kΩ to 1 TΩ and is equally at home in the laboratory, workshop or field application.

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%	30V	1 watt	±50ppm/°C
				10x10kΩ	±0.1%	100V	1 watt	±50ppm/°C
				10x100kΩ	±0.1%	300V	1 watt	±50ppm/°C
				10x1MΩ	±0.1%	350V	1 watt	±50ppm/°C
				10x10MΩ	±1%	3500V	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	±250ppm/°C
				10x100GΩ	±3%	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%	30V	1W	±50ppm/°C
10kΩ	±0.1%	100V	1W	±50ppm/°C
100kΩ	±0.1%	300V	1W	±50ppm/°C
1MΩ	±0.1%	350V	1W	±50ppm/°C
10MΩ	±1%	3500V	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	±250ppm/°C
100GΩ	±3%	5000V	1.3 watts	±2000ppm/°C
1TΩ	±3%	5000V	1.3 watts	±2000ppm/°C