ZX21、ZX21a DC Resistance BoxPrecision adjustable resistors for DC circuits, featuring low residual resistance, are essential instruments for electrical laboratories in factories, schools, and research institutions. Multi-value resistors can also serve as testing instruments for temperature indicating gauges and temperature indicating regulators. ZX21aIsZX21The improved model features a stepping disk with a low-pressure switch contact, resulting in small resistance and stable variation. Step motor disc(Ohms X10000 X10000 X10000 X10000 X10000 X10000 Accuracy%) 0.1 0.1 0.1 0.2 0.5 5 4.DC Resistance Box Dimensions:ZX21: 180×130×115(mm)
DC Resistance Box Main Technical Performance
1.Resistor adjustment range:ZX21:9×(0.1+1+10+100+1000+10000)Ω
ZX21a:10×(0.1+1+10+100+1000+10000)Ω
2Power: Reference Power0.2WNominal Power0.3WUltimate Power0.5W
3.Accuracy
ZX21a: 200×135×75(mm)
5.Quality: Less than2kg





























