YB2172交流毫伏表/YB-2172
YB2172交流毫伏表产品介绍
YB2172交流毫伏表是一款高性能电子测量仪器，专为精确测量正弦波有效值电压而设计。该产品采用进口编码开关和微型计算机控制技术，具有手感轻便、结构紧凑、可靠性高等特点。测量电压范围覆盖100μV至300V，频率响应范围为5Hz至2MHz，满足不同场景下的测试需求。仪器配备两路独立电压测量放大电路，可通过跟踪功能方便观察两个被测信号的差异，同时提供测量信号监视输出功能。产品采用发光二极管清晰指示量程和状态，操作直观便捷，适用于收音机、电视机等电子设备生产线的检测以及学校实验室、科研单位的实验研究。124
Product Introduction of YB2172 AC Millivoltmeter
The YB2172 AC Millivoltmeter is a high-precision electronic measuring instrument designed for accurate measurement of sine wave RMS voltage. Featuring imported encoder switches and microcomputer-controlled technology, this product offers lightweight operation, compact structure, and high reliability. With a measurement voltage range from 100μV to 300V and frequency response from 5Hz to 2MHz, it meets various testing requirements. The instrument is equipped with two independent voltage measurement amplification circuits, allowing convenient observation of differences between two measured signals through tracking function, while providing monitoring output of measurement signals. Clear LED indicators display range and status for intuitive operation, making it suitable for production line testing of electronic devices like radios and televisions, as well as experimental research in school laboratories and scientific institutions.1410
产品技术特点
该产品采用超β低噪声晶体管和屏蔽隔离工艺，显著提高了小信号测量精度和线性度。输入阻抗高达10MΩ以上，换量程无需调零，大大提升了测试效率。仪器具有十二档电压量程（1mV-300V）和十二档分贝量程（-60dB至+50dB），支持两种dB电压刻度显示。噪声水平低于满刻度的2%，在基准条件下电压固有误差不超过满刻度的±3%。产品设计考虑了实际使用环境，工作温度范围为0-40℃，适应相对湿度35%-90%的工况条件，确保在各种环境下稳定工作。7912
Technical Features
The product utilizes ultra-β low-noise transistors and shielding isolation technology, significantly improving small-signal measurement accuracy and linearity. With input impedance exceeding 10MΩ and no need for zero adjustment when changing ranges, it greatly enhances testing efficiency. The instrument provides twelve voltage ranges (1mV-300V) and twelve decibel ranges (-60dB to +50dB), supporting two types of dB voltage scale displays. Noise level is below 2% of full scale, with inherent voltage error within ±3% of full scale under reference conditions. Designed for practical environments, it operates stably within 0-40℃ temperature range and 35%-90% relative humidity, ensuring reliable performance in various conditions.71415
应用场景与使用便利性
YB2172交流毫伏表广泛应用于电子制造、维修检测、教学实验等多个领域。其人性化设计包括机械零点调节功能，开机前可方便校准指针位置；量程旋钮配备最大量程保护设计，防止误操作损坏仪器；后面板设有交流输出端口，便于信号监测。产品电源采用AC220V±10%供电，预热时间约5分钟即可进入稳定工作状态。紧凑的机身尺寸（约140×270×210mm）和合理的重量分布，使仪器便于携带和放置，适合工作台面或移动测试使用。61113
Application Scenarios and User Convenience
The YB2172 AC Millivoltmeter is widely used in electronics manufacturing, maintenance testing, and educational experiments. Its user-friendly design includes mechanical zero adjustment for easy calibration before operation, maximum range protection to prevent damage from misuse, and rear panel AC output ports for signal monitoring. Powered by AC220V±10%, it reaches stable operation after approximately 5 minutes of warm-up time. With compact dimensions (about 140×270×210mm) and well-balanced weight distribution, the instrument is portable and suitable for both benchtop and mobile testing applications.61722
·监视输出电压：1Vrms±10·输入阻抗：≤10MΩ·输入电容：≤50pF·输出电压频率响应：5Hz-2MHz ±3参照1kHz无负载·电源电压：~220V 50HzYB2172交流毫伏表
YB2172交流毫伏表/YB-2172
YB2172交流毫伏表
的详细介绍
· 单指针毫伏表
· 有测量信号监视输出
· 测量精度高
· 塑料框架，外形美观
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技术指标:
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·电压测量范围： 100μV-300V / 30μV~100V
·电压测量频率范围： 5Hz-2MHz
·刻度值：正弦波有效值1V=0db值，1mW=0dbm 的dbm值
·电压量程：12档 100μV-300V
·分贝量程：12档 -60db~+50db
·测量电压误差：1kHz 为基准：满度 ≤±3
·频率响应：20Hz-200kHz ≤±3，5Hz-20Hz、200kHz-2MHz ≤±10
·大输入电压 DC+Acp-p：300V 1mV-1V 量程 500V 3V-300V 量程
·监视输出电压：1Vrms±10
·输入阻抗：≤10MΩ
·输入电容：≤50pF
·输出电压频率响应：5Hz-2MHz ±3参照1kHz无负载
·电源电压：~220V 50Hz
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