RX7/118宽程精密电容箱
RX7/118宽程精密电容箱的产品介绍（中文）
RX7/118宽程精密电容箱是一款采用旋钮式十进设计的精密调节设备，适用于交流电桥的可变容抗臂、滤波移相电路中的容抗元件以及电容表校正等场景。其工作环境要求为空气温度+10℃至+35℃，相对湿度30%-80%。该产品采用优质聚苯乙烯或聚丙烯薄膜电容器，通过多组十进开关组合实现电容值的精确调节，可变范围为(0~10)×(0.001+0.01+0.1+1+10+100)μF，最小步进值为1nF。整机采用屏蔽机箱设计，有效减少外部干扰，面板设有1、2端钮作为主引出端，0端钮为屏蔽接地端。产品尺寸为550×200×150mm，重量约8kg，适合实验室和工业环境中需要宽范围电容调节的场合使用。1313
Product Introduction of RX7/118 Wide-range Precision Capacitance Box (English)
The RX7/118 wide-range precision capacitance box features a rotary decimal design with six adjustment knobs, providing precise capacitance control from 0 to 1000μF through (0~10)×(0.001+0.01+0.1+1+10+100)μF combinations. Its shielded enclosure minimizes external interference while maintaining stable performance in environments with temperatures between +10℃ to +35℃ and relative humidity of 30%-80%. The unit incorporates high-quality polystyrene or polypropylene film capacitors, achieving 1nF minimum increment steps. With 1-2 terminals for main connection and 0 terminal for shielding ground, this compact device (550×200×150mm) suits various applications including AC bridge circuits, phase-shifting networks, and capacitance meter calibration. The silver-copper composite switch contacts ensure reliable performance and extended service life. 3137
产品功能特点
该电容箱采用模块化十进开关组件设计，每组开关由多个并联电容构成1-10的步进值，接触点采用银铜复合材料确保长期稳定性。电气部分全部安装在屏蔽机箱内，有效隔离电磁干扰。使用时支持两端或三端接入工作电路，用户可根据实际需求选择连接方式。产品在20℃±5℃环境、800-1000Hz工作频率及50V有效值电压条件下可达到较好的性能表现。为确保测量精度，建议在使用时考虑连接导线电容影响，并注意环境温度和强电场的干扰因素。1137
Functional Highlights
This capacitance box employs modular decimal switches where each knob controls parallel-connected capacitors to achieve 1-10 step values. The sliding contacts use silver-copper alloy for oxidation resistance and consistent electrical performance. When connecting to circuits, users may adopt either two-terminal or three-terminal configuration depending on application requirements. For optimal performance, we recommend operating at 800-1000Hz frequency range while considering ambient temperature compensation and cable capacitance effects. The built-in discharge circuit allows safe operation by automatically discharging stored energy after adjustments. Its structural design focuses on reliability and ease of use, making it suitable for both laboratory and industrial calibration purposes. 3713
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十 进 电 容 箱(多值可调)
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序号
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型号
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额定工作电压 |
开关数
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容量范围μF
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开关变化组合μF
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小步进值μF
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准确度
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出厂价￥
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5-1
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RX7/00
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十进
电容箱
250Vac
630Vdc
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4
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0～0.11110
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(0～10)×(0.00001+0.0001+0.001+0.01)
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0.00001
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0.65
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1400
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5-2
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RX7/0
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4
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0～1.1110
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(0～10)×(0.0001+0.001+0.01+0.1)
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0.0001
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0.5
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1100
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5-3
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RX7/1
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3
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0～1.110
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(0～10)×(0.001+0.01+0.1)
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0.001
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0.5
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950
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5-4
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RX7/2
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2
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0～1.10
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(0～10)×(0.01+0.1)
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0.01
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0.5
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850
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5-5
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RX7/3
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2
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0～0.110
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(0～10)×(0.001+0.01)
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0.001
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0.65
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850
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5-6
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RX7/4
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1
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0～1.0
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(0～10)×0.1
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0.1
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0.5
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520
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5-7
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RX7/5
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1
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0～0.10
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(0～10)×0.01
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0.01
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0.65
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420
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5-8
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RX7/6
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1
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0～0.010
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(0～10)×0.001
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0.001
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2
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520
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5-9
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RX7/N59
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4
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0～11.110
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(0～10)×(0.001+0.01+0.1+1)
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0.001
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0.5
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1380
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5-10
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RX7/N5A
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5
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0～11.1110
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(0～10)×(0.0001+0.001+0.01+0.1+1)
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0.0001
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0.5
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1530
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5-11
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FMBa
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十进
电容箱
250Vac
630Vdc
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3
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0～11.10
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(0～10)×(0.01+0.1+1)
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0.01
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5
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1350
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5-12
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FMBb
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2
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0～11.0
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(0～10)×(0.1+1)
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0.1
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5
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1100
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5-13
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FMBc
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3
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0～111.0
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(0～10)×(0.1+1+10)
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0.1
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5
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1550
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5-14
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FMBd
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2
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0～110
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(0～10)×(1+10)
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1
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5
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1450
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5-15
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FMBe
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2
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0～22
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(0～10)×(0.1+1)+11
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0.1
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5
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1180
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5-16
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FMBf
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2
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0～41
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(0～10)×(0.1+1)+10+20
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0.1
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5
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1280
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5-17
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FMBch
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400Vac
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3
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0～111.0
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(0～10)×(0.1+1+10)
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0.1
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5
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1860
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5-18
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RX7/01
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精密皮法电容箱
250Vac
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3
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0～111.0pF
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(0～10)×(0.1+1+10)pF
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0.1pF
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5
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3200
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5-19
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RX7/02
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2
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0～110pF
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(0～10)×(1+10)pF
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1pF
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5
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2000
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5-20
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RX7/03
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2
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0～11100pF
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(0～10)×(10+100+1000)pF
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10pF
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5
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2050
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5-21
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RX7/112
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4
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0～1111.0pF
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(0～10)×(0.1+1+10+100)pF
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0.1pF
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5
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3600
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5-22
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RX7/113
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4
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0～11110 pF
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(0～10)×(1+10+100+1000)pF
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1pF
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1
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3600
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5-23
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RX7/118
RX7/000
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宽程精密电容箱
250Vac
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6
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0～1000
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(0～10)×(0.001+0.01
+0.1+1+10+100)
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0.001
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0.5
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4560
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5-24
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RX7/N34
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2
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0～2000
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(0～10)×100+1000
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100
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0.5
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4960
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5-25
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RX7/N37
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4
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0～1000
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(0～10)×(0.1+1+10+100)
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0.1
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0.5
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4060
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5-26
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RX7/N4A
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6
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0～100
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(0～10)×(0.0001+0.001
+0.01+0.1+1+10)
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0.0001
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0.5
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2980
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5-27
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RX7/200
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精密校表电容箱
250Vac
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1
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0～200
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(0～10)×10+100
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10
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0.5
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3150
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5-28
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FM-C1555
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1×7
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0.00015，0.0015，0.015，0.15，1.5，15，150
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——
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0.5
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2000
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5-29
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FM-C1999
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1×7
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0.00019，0.0019，0.019，0.19，1.9，19，190
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——
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0.5
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2600
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5-30
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FM-RX7-618
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宽程校表
电容箱
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1×8
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0.01, 0.1, 1, 10, 100, 1000,2000, 6000
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——
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0.3
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25000
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5-31
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BC05
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电容箱
250Vac
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0～10μF
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(0～10)×1
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1
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0.5
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660
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5-32
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YX27002
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1
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3.3，3.5，4.5，5，6.6，7.5，8，10，15，20
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——
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1
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880
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5-33
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ZXB01
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倍率补偿阻容箱
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2
3
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倍率(二盘独立)：2×(100～30k)Ω；
补偿(三盘步进)：0～11.10nF
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——
0.01nF
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0.1
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1150
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