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2786 Decade Resistance Box
Brand: Yokogawa Electric CorporationModels 278610 and 278620 six-dial decade resistance boxes allow quick and easy setting of a wide range of resistance.
These resistance boxes are used in combination with voltage or current standards to adjust voltage or current, as dummy load resistances or as an arm of AC bridges.
Specifications
Accuracy
- ± 0.05 to ± 2 at 23 ± 3° C Ambient Temperature
Current
- 1.7 mA (100 kiloohms) - Rating Current
- 5.5 mA to 2.2 A - Current Rating And, Max.
- 7.1 mA (10 to 30 kiloohms) - Max.
Humidity
- 25 to 80 % Relative Humidity
Input
- 0.5 w/ Step - Max.
- 250 V (40 to 100 kiloohms) - Max.
- 5 W - for Overall Instrument: Max.
Insulation Resistance
- More Than 500 megaohms at 500 Vdc
Operating Temperature
- 0° to 40° C (32° to 104° F)
Power
- 0.3 w/ Step - Rating
- 3 W - for Overall Instrument
Rating
- 250 V (200 kiloohms to 1 Megaohm) - Rating
Resistance
- < 23 milliohms - Residual Resistance
- 0.1 to 100 kiloohms - Step
- 0.1 to 111,111 ohms (Six Decade Dials) - 278610
- 1 to 1,111,110 ohms (Six Decade Dials) - 278620
Storage Temperature
- -10° to 50° C (14° to 122° F)
Supply Voltage
- 1,500 Vac for One Minute - Dielectric Strength
- 250 V - Max.
