ZX78 type DC resistor

1ZX78 type DC resistorpurpose
This type of resistor is a variable resistance measuring tool. It can be adjusted freely in your DC circuit and obtain high-precision resistance values that satisfy you. It can easily calibrate resistors below 0.02 level and portable DC single arm bridges for whole machine calibration.
Please use this product for electrical measurement in public mines, schools, research and measurement units. This resistor has the advantages of a wide adjustment range, low zero resistance, and small variation. It has a small size and beautiful appearance, making it a commonly used instrument in laboratories.
IIZX78 type DC resistorMain technical indicators
1. Circuit adjustment range: 0~1111.11 Ω
2. Accuracy of each stepper disk:
Stepper disk (Ω) × 104 × 103 × 102 × 10 × 1 × 0.1 × 0.01
Accuracy (ppm) 50 100 500 5000 50000
3. Residual resistance of resistor: Ro=(15 ± 2) m Ω
4. The reference power of the resistor is 0.02W, and the nominal operating power is 0.05W.
5. Temperature reference conditions and charging difference: 20 ± 0.5 ℃.
6. Temperature nominal usage range: 20 ± 0.5 ℃.
7. Relative humidity of the usage environment: ≤ 80%.
8. The insulation resistance between the resistor circuit and the casing is ≥ 1 × 1011 Ω.
9. The test voltage between the resistor circuit and the casing can withstand a frequency of 50Hz and a sine wave AC voltage of 2000V for 1 minute without breakdown.
10. Dimensions: 410mm × 260mm × 150mm.
11. Weight: Approximately 5kg

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