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product - YOKOGAWA-TEST-AND-MEASUREMENT - Decade Resistance Boxes

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Decade Resistance Boxes 2786
Models 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 - Model 278610
Resistance Range
0.1 to 111,111Ω (Six decade dials)
Residual Residence
Less than 23mΩ
Power Rating
0.3W/Step, Within 3W for overall instrument
Maximum Allowed Input
0.5W/Step, 5W for Overall Instrument
Maximum Circuit Voltage
250V
Operating Temperature Range
0 to 40C ( 32 to 104F)
Storage Temperature Range
-10 to 50C (14 to 122F)
Humidity Range
25 to 85% relative humidity
Insulation Resistance
More than 500MΩ at 500V DC between panel and circuit
Dielectric Strength
1,500 V AC for one minute
Dimensions
497(W)116(H)140(D)mm, excluding protrusions
19.57 x 4.57 x 5.51 in
Weight
Approx. 3.5kg
7.7 lbs

Specifications - Model 278620

Resistance Range
1 to 1,111,110Ω (Six decade dials)
Residual Residence
Less than 23mΩ
Power Rating
0.3W/Step, Within 3W for overall instrument
Maximum Allowed Input
0.5W/Step, 5W for Overall Instrument
Maximum Circuit Voltage
250V
Operating Temperature Range
0 to 40C ( 32 to 104F)
Storage Temperature Range
-10 to 50C (14 to 122F)
Humidity Range
25 to 85% relative humidity
Insulation Resistance
More than 500MΩ at 500V DC between panel and circuit
Dielectric Strength
1,500 V AC for one minute
Dimensions
497(W)116(H)140(D)mm, excluding protrusions
19.57 x 4.57 x 5.51 in
Weight
Approx. 3.5kg
7.7 lbs