ZX21 DC Resistance Box Six Sets of Switches Adjustable Resistance Box Variable Decade Resistor 0~99.9999 Kilo ohm
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- Supplier: Hefei Vetus Electronic Technology Co. Ltd.
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Product Overview
Description
ZX21 DC Resistance Box Six Sets of Switches Adjustable Resistance Box Variable Decade Resistor 0~99.9999 Kilo-ohm
Features :
The ZX21 rotary resistance box which has low zero resistance ,is used to adjust resistance in DC circuit. This equipment is commonly used in laboratories for schools, factories and scientific research units. The temperature of the air around should be +10℃~+35℃ and the relative humidity 30~80% when it is used .
Adjusting range:
ZX21: (0~9)×(0.1~10k)Ω =0~99.9999 kΩ
ZX21a:(0~10)×(0.1~10k)Ω =0~111.1110 kΩ
ZX21b:(0~9)×(0.1~10k)Ω =0~99.9999 kΩ
ZX21c:(0~10)×(0.01~1k)Ω=0~11.11110 kΩ
ZX21d:(0~10)×(1~100k)Ω =0~1.111110MΩ
ZX21e:(0~10)×(10~1M)Ω =0~11.11110MΩ
ZX21f:(0~10)×(100~10M)Ω =0~111.1110MΩ
ZX21g:(0~10)×(1k~100M)Ω =0~1.111110GΩ
Zero resistance: (30±5)mΩ
The basic errors are regulated in Table 1.
The allowable current of each group resistance are shown in Table 1
The dielectric strength between resistance box circuit and shell can withstand 50 Hz frequency,2000V AC, which lasts 1 minute.
The insulation resistance between resistance box circuit and shell is not less than 1000MΩ
The weight of the resistance box is about 1.3 kg,and its size is 200×150×110mm3.
Specification:
Indication Ω
Types | × 100M | × 10M | × 1M | × 100k | × 10k | × 1k | × 100 | × 10 | × 1 | × 0.1 | × 0.01 |
ZX21 | — | — | — | — | 0.1 | 0.1 | 0.5 | 1 | 2 | 5 | — |
ZX21a | — | — | — | — | 0.1 | 0.1 | 0.1 | 0.5 | 1 | 2 | — |
2X21b | — | — | — | — | 0.1 | 0.1 | 0.1 | 0.5 | 1 | 2 | — |
ZX21c | — | — | — | — | — | 0.1 | 0.1 | 0.5 | 1 | 2 | 5 |
ZX21d | — | — | — | 0.5 | 0.1 | 0.1 | 0.5 | 1 | 2 | — | — |
ZX21e | — | — | 1 | 0.5 | 0.1 | 0.1 | 0.5 | 1 | — | — | — |
ZX21f | — | 2 | 1 | 0.5 | 0.1 | 0.1 | 0.5 |
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ZX21g | 5 | 2 | 1 | 0.5 | 0.1 | 0.1 |
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Current≤(A) | 60 μ | 180 μ | 0.6 m | 1.8 m | 6 m | 18 m | 60 m | 180 m | 0.6 | 1.5 | 3 |
Product Picture:
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