- 电阻范围为1mΩ至10MΩ
- 额定功率：225 W / decade，最大250 W.或更高（联系IET定制更高功率单元）
- 准确度：0.5％或1％
- 额定电压：1000 V或更高
- 提供特殊和自定义配置
The High-Power Decade Resistance Substituter (HPRS) Series is a family of resistance decade boxes offering a broad choice of high-power, excellent-performance resistance sources.
The HPRS Series resistance decade boxes employ state-of-the-art precision resistors of various types for high accuracy, high stability, and low temperature and power coefficients of- resistance. High-power resistors within the unit are made available without sacrificing other electrical properties.
The standard models offer a choice of 3 to 8 decades. The panels are clearly labeled showing the step size and maximum voltage and current limitations for each decade.
With a resolution as low as 1 mΩ and a maximum resistance of 10 MΩ , the HPRS resistance decade box may be used as a general purpose substituter as well as a high power load for testing power supplies and for other high-power applications.
Applications include calibration of meters and instruments. HPRS resistance decade boxes are useful development tools wherever precise resistances with high-power handling capacity are required.
准确度 ：
选项F：±（1％+20mΩ）
选项C：±（0.5％+20mΩ）
零电阻：每十年<5mΩ
最大电压： 1000 V峰值开关：
连续旋转10个位置标记为“0” - “9”
每步阻力 | 总十年阻力 | 最大电流* | 每步最大功率*（W） | 温度系数（ppm /°C） | 电阻器类型 |
1mΩ | 0.009Ω | 8 A. | 0.036 | ±50 | 电阻丝 |
10mΩ | 0.09Ω | 6 A. | 0.36 | ±50 | |
100mΩ | 0.9Ω | 6 A. | 3.6 | ±20 | |
1Ω | 9Ω | 5 A. | 25 | -20到+80 | 动力电影 |
10Ω | 90Ω | 1.5 A. | 25 | -20到+80 | |
100Ω | 900Ω | 0.5 A. | 25 | -20到+80 | |
1kΩ | 9kΩ | 150毫安† | 25† | -20到+80 | |
10kΩ | 90kΩ | 50毫安† | 25† | -20到+80 | |
100kΩ | 900kΩ | V限制† | V限制† | -20到+80 | 线绕/金属薄膜 |
1MΩ | 9MΩ | V限制† | V限制† | ±50 | 线绕/膜 |
*最高可达250 W。每单位：每十年9步，将十进制值乘以每步的功率。可以使用数十年来共享电力负荷 | |||||
†最高1000 V（dc + ac）峰值 | |||||
