DC multi value resistor

ZX78DC multi value resistorDetailed information:

ZX78 typeDC multi value resistorpurpose

This type of DC resistor is a multi value resistor composed of a series of ten pin plates. The resistance value between the two terminals can be changed by changing the position of the switch brush contact, making it easy to calibrate resistors below level 0.02 and portable DC single arm bridges. It can also be used for electrical measurement in factories, schools, and research institutions, as well as for precise adjustment of resistors in DC circuits. This resistor has the advantages of low zero resistance and small resistance variation.
ZX78 typeMain technical indicators
Resistance value adjustment range: 0-11111.10 Ω
2. Accuracy of each stepper disk

3. Residual resistance of resistor R₀＝（15±2）mΩ;
4. Reference power of resistor: 0.05W; Nominal operating power: 0.1W.
5. Reference temperature: 20 ± 0.5 ℃; Nominal operating temperature 20 ± 5 ℃
6. Reference relative humidity: 40% to 60%
Nominal relative humidity: 25% to 80%
7. The insulation resistance between the resistor circuit and the casing is ≥ 1 × 10¹⁰Oh.
8. The resistor circuit and the casing can withstand a sine wave AC voltage with a frequency of 50Hz and a voltage of 2000V for 1 minute without breakdown.
9. Shell size: 410 × 260 × 160mm
10. Weight: Approximately 5 kilograms
ZX78 typeThe ten pin resistor plate adopts a light pressure switch structure, with small contact resistance and variation, stable and reliable contact, and long service life. The internal resistance is made of high stability manganese copper alloy wire wound on a ceramic tube in a non inductive manner, and undergoes strict artificial aging treatment, long-term assessment, and screening, thus having a very stable resistance value.
4ZX78 typePrecautions for use
1. To use the instrument correctly, rotate each reading disc from 0 to 10 times before use to make the brush contact more reliable.
2. Resistors should not exceed the specified nominal operating power during use.
3. This resistor should be stored at an air temperature of 10-30 ℃ and relative humidity
≤ 80%, indoor environment free from corrosive gases and harmful impurities, and
The instrument is not directly exposed to sunlight.
5ZX78 typeSupplementary Provisions
1. Follow alongproductDocuments supplied together:
a. Packing list
b. User Manual
ｃ、productCertificate of Conformity