DECADE RESISTANCE BOXES 2793 #279303
Model 2793 resistance box is high-accuracy, stable DC variable resistor with 6 dials and is available in two styles: 279301 for medium resistance from 0.1 to 1,111.210 Ω in 1 mΩ steps (best suited for calibration of resistance thermometers or bridges); 279303 for high resistance from 0 to 111.1110 MΩ in 100 Ω steps (suitable for calibration of insulation resistance testers or bridges).
- Up to 100MΩ in 100Ω stop
- Low voltage coefficient
Variation of the resistance value is less than ±0.1% at 1MΩ and 10MΩ steps against 100V application, and less than ±0.04% at 100Ω 1Ω 10Ω, and 100Ω flaps against 10V application.
- Shock and vibration proof construction
- Easy-to-read in line indication
- Best suited for calibration of insulation resistance testers and bridges
|Dielectric Strength||2,500 AC for one minute between Panel and Circuit|
|Insulation Resistance||More then 1011Ω at 1,000V DC between panel and circuit|
|Dimension||110 x 491 x 140 mm
4 3/8 x 19 3/8 x 5 1/2 in.
|Resistance Range||0 to 1,111.110Ω|
|Dial Composition||100Ω x 10 + 1kΩ x 10 + 10kΩ x 10 + 100kΩ x 10 + 1MΩ x 10 + 10MΩ x 10|
|Accuracy||100Ω, 1kΩ, 10kΩ, 100kΩ Steps - ±(0.05Ω + 0.05mΩ)
1 MΩ and 10MΩ Steps - ±0.2%
(At temperature 23 ±2°C, humidity below 75%, including residual resistance of approx. 0.05Ω).
|Max. Allowable Input||100 Ω||Step||100mA|
|100 Ω||Step||3mA (100 to 600 kΩ)|
|2000 V (700 kΩ to 1 MΩ)|
|1 Ω||Step||2000 V|
|10 Ω||Step||2000 V|