decade resistance boxes, zx Specifications
The ZX74 series of decade resistance boxes are very high accuracy and stable six-dial instruments. There are 4 versions in the series with a maximum resistance of 1,111,111Ω. The ZX83 series adds another two decade boxes that extend the resistance range to 111,111,100Ω.
The ZX90E series of decade resistance boxes comprise of 10 instruments to cover a resistance range of up to 1,111,111Ω with instruments available in 4, 5, 6 and 7 decades. Whilst they are low cost, these instruments are of high quality and feature precision low contact resistance switches.
Basic accuracy: ZX74E, ZX75E, ZX76E: (0.01% +0.002Ω) @ 20°C ± 2°C
: ZX77E, ZX83E, ZX84E: (0.05% +0.002Ω) @ 20°C ± 2°C
RH: 75% non-condensing
Insulation Resistance: >1000MΩ @1000V
Temp. co-efficient: (-5 to +10)ppm/°C
Power Dissipation: MAX 0.2W
Dimensions (mm): 435 x 136 x 110