FMBe十进电容箱
FMBe十进电容箱产品介绍（中文）
FMBe十进电容箱是一款用于电工实验和物理实验的教学仪器，具有较高的耐压性能，可直接在市电电压下工作。该产品采用十进制步进调节方式，容量范围为0～22μF，最小步进值为0.1μF。电容箱内部设计合理，结构紧凑，能够有效抑制涌流及电弧的产生，确保使用过程中的安全性和稳定性。FMBe十进电容箱适用于滤波和谐振电路、功率因数测量/补偿电路、交流电桥桥臂、交流参数测定电路以及一阶/二阶电路响应等实验场景。产品外形尺寸为27×21×12cm，重量适中，便于实验室操作和移动。根据用户需求，可提供不同规格的特殊定制服务。3715
FMBe Decade Capacitance Box Product Introduction (English)
The FMBe decade capacitance box is a teaching instrument designed for electrical engineering and physics experiments, featuring high withstand voltage capability that allows direct operation under mains voltage. This product adopts a decimal step-adjustment mechanism with a capacitance range of 0-22μF and a minimum step value of 0.1μF. Its optimized internal design and compact structure effectively suppress inrush current and arc generation, ensuring operational safety and stability. The FMBe box is suitable for various experimental applications including filter/resonance circuits, power factor measurement/compensation circuits, AC bridge arms, AC parameter determination circuits, and first/second-order circuit response studies. With external dimensions of 27×21×12cm and moderate weight, it facilitates convenient laboratory operation and portability. Customized specifications are available based on user requirements. 82324
产品技术特点（中文）
FMBe十进电容箱采用优质材料制造，具有良好的自愈能力，在产生瞬间高压击穿时不会损坏电容器本身。产品工作频率为50Hz时，准确度可达±5%，损耗角正切值小于0.005（容量≥1μF时）。电容箱额定工作电压为250V交流有效值，直流耐压630V，额定工作电流1A，能够满足多种实验条件下的使用需求。产品操作界面清晰直观，旋钮开关定位准确，便于精确调节所需电容值。箱体采用坚固耐用的外壳设计，既保护内部元件又确保长期使用的可靠性。51520
Technical Features (English)
Manufactured with premium materials, the FMBe decade capacitance box exhibits excellent self-healing properties, preventing capacitor damage during transient voltage breakdowns. When operating at 50Hz frequency, it achieves ±5% accuracy with loss tangent below 0.005 (for capacitance ≥1μF). The product s rated working voltage is 250V AC (RMS), withstanding 630V DC and 1A rated current, accommodating diverse experimental conditions. Its user interface features clearly marked controls and precise knob-switch positioning for accurate capacitance adjustment. The robust enclosure design provides both component protection and long-term operational reliability. 1523
应用领域说明（中文）
FMBe十进电容箱广泛应用于高等院校的电工电子实验室，可作为交流电路中可变标准电容器或电桥的可变桥臂使用。在电路实验中，它能帮助研究阻抗变换、功率因数提升以及各种交流参数测量。产品也适用于演示电容在滤波电路中的特性表现，观察不同电容值对电路频率响应的影响。其稳定可靠的性能使学生能够获得准确的实验数据，加深对电路理论的理解。3722
Application Scenarios (English)
The FMBe decade capacitance box finds extensive applications in university electrical engineering laboratories, serving as variable standard capacitors in AC circuits or adjustable bridge arms in measuring bridges. It facilitates studies on impedance transformation, power factor improvement, and various AC parameter measurements in circuit experiments. The product is equally suitable for demonstrating capacitive characteristics in filter circuits and observing capacitance-dependent frequency responses. Its stable performance ensures accurate experimental data acquisition, enhancing students comprehension of circuit theories. 51522
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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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