ZX56开关式直流标准电阻箱
产品概述
ZX56开关式直流标准电阻箱是一种可调节电阻值的精密测量工具，适用于直流电路中的电阻调节与校准。该设备通过多组十进开关实现阻值的阶梯式变化，调节范围覆盖0.01Ω至11111.11Ω，最小步进值为0.01Ω，能够满足实验室、工厂及科研单位对电阻精度的高要求。其核心电阻元件采用高稳定性锰铜合金线无感绕制，结合瓷管基底与严格工艺处理，确保长期使用的稳定性和可靠性。面板设计简洁，读数示值排列成直线，便于快速识别当前阻值。17
技术特点
ZX56采用六组开关结构，每组开关通过旋钮独立调节，接触部分采用微弹簧压紧技术，有效减少长期使用导致的接触电阻变差。电阻支座选用高绝缘聚砜塑料，绝缘性能优异，保障操作安全。设备工作环境要求为温度+10℃～+35℃，相对湿度30%～80%，适合常规实验室条件。使用前需旋转各组旋钮确保接触稳定，并定期用中性清洁剂维护电刷片以延长寿命。其设计兼顾实用性与耐用性，尤其适合电学测量、仪器校验等场景。1519
应用场景
该电阻箱广泛应用于教育、工业及科研领域。在教学中，可用于演示电阻变化对电路的影响；在工厂中，可校验便携式直流电桥或作为精密电阻源；在科研中，支持各类电学实验的数据采集。其宽泛的阻值范围和精细的步进调节能力，使其成为多场景下的理想工具。此外，设备结构紧凑（约200×150×110mm，重1.3kg），便于携带与安装。424
Product Overview
The ZX56 switch-type DC standard resistance box is a precision adjustable resistor designed for DC circuit calibration and resistance regulation. It features a stepwise resistance adjustment from 0.01Ω to 11111.11Ω with a minimum increment of 0.01Ω, achieved through six decade switches. The resistance elements are wound with high-stability manganin alloy on ceramic tubes, ensuring long-term stability under rigorous processing. The clear linear scale on the panel facilitates quick reading. Ideal for laboratories and industrial settings, it supports accurate electrical measurements.17
Technical Highlights
With a six-switch design, the ZX56 employs micro-spring compression technology to minimize contact resistance drift. The high-insulation polysulfone base enhances safety, while the operating range of +10℃～+35℃ and 30%～80% humidity suits typical lab conditions. Users should rotate switches before operation for stable contact and perform periodic maintenance on brush contacts. Its durability and precision make it suitable for calibrating instruments like DC bridges or serving as a reliable resistance source.519
Applications
This resistance box is widely used in education, industry, and research. It demonstrates circuit resistance effects in classrooms, verifies portable DC bridges in factories, and aids precise data collection in scientific experiments. Compact dimensions (200×150×110mm, 1.3kg) and broad resistance range ensure versatility across scenarios. Its user-friendly design balances functionality and portability.424
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直流电阻箱(多值可调)
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序号
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型 号
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开关数
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名 称
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示值范围Ω
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小步进Ω
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准确度%
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出厂价￥
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3-1
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ZX21
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6
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旋转式电阻箱
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0～99999.9
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0.1
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0.1
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300
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3-2
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ZX21a
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6
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旋转式电阻箱
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0～111111.0
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0.1
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0.1
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600
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3-3
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ZX21b
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6
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旋转式电阻箱
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0～99999.9
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0.1
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0.1
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600
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3-4
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ZX21c
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6
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旋转式电阻箱
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0～11111.10
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0.01
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0.1
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800
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3-5
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ZX21d
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6
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旋转式电阻箱
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0～1.111110M
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1
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0.5
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800
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3-6
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ZX21e
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6
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旋转式电阻箱
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0～11.11110M
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10
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1
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800
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3-7
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ZX21f
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6
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旋转式电阻箱
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0～111.1110M
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100
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2
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1000
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3-8
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ZX21g
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6
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旋转式电阻箱
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0～1.111110G
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1000
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5
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1200
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3-9
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ZX25a
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6
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开关式直流电阻箱
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0．01～11111.11
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0.01
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0.02
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1320
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3-10
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ZX35
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3
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旋转式电阻箱
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0～1110
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1
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0.1
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510
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3-11
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ZX36
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4
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旋转式电阻箱
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0～9999
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1
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0.2
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280
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3-12
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ZX54
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7
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开关式直流标准电阻箱
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0.01～111111.11
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0.01
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0.01
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2450
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3-13
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ZX55
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3
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直流电阻箱
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0～1110
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1
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0.02
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850
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3-14
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ZX56
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6
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开关式直流标准电阻箱
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0.01～11111.11
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0.01
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0.02
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1350
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3-15
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ZX5N3
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7
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标准电阻箱
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0.001～11111.110
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0.001
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0.01
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2450
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3- 16
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ZX62
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4
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十进电阻箱(DRB-2-4)
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0～111100
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10
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1
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1000
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3-17
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ZX67
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6
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开关式直流标准电阻箱
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0.01～11111.11
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0.01
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0.01
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1676
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3-18
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ZX68
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6
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精密十进位直流电阻箱
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0～111111.0
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0.1
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0.01
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1676
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3-19
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ZX74
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6
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直流电阻箱
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0.001～1111.210
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0.001
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0.01
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2150
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3-20
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ZX84
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6
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直流电阻箱
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0～111.1110M
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100
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0.05
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3800
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3-21
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ZX86B
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6
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高阻电阻箱
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0～511.110M
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1000
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5
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2350
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3-22
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ZX97
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6
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直流电阻箱
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0～1111110
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1
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0.1
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980
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