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for more product details, please call us：0731-84930888
th0400 precision coaxial shunt 适用于测量精密交直流电流，校准交直流电流表、精密电流标准源等设备
共含 14 只不同量程的精密同轴分流器
电流测量： dc ～ 100 khz，0.1 ma ～ 110 a
标称电压值均为 1 v
最优准确度达 20 ppm
overview
model th0400, a series of 14 various ranges precision coaxial shunts, applied to measure ac/dc current from 0.1 ma to 110 a and frequency from dc to 100 khz, the optimal accuracy is up to ±20 ppm.
applied to measure precision ac and dc current and calibrate precision ammeters and standard current sources.
features
● the nominal voltage is 1 v, can measure current by directly matching high-precision voltmeters or other measurement instruments.
● for 1 ma, 10 ma and other high resistance current shunts, combine with the model th0600 to avoid errors caused by wire connection or input impedance drops of digital meters at high frequency.
● compared to 0.5 v, 0.8 v and other voltage value, the 1v nominal voltage has a higher noise ratio, easier current conversion, faster error calculation, and accords with the 1-2-5 sequence principle of modern measurement.
● precision components and production processes ensure the resistance value stable, the typical resistance change value is ±5 μω/ω in 1 year, and the maximum resistance change value is ±16 μω/ω in 1 year.
● good heat dissipation, lower temperature coefficient and self-heating power factor ensure a good stability.
● small phase displacement between the input current and the sampled voltage, the phase displacement is less than 0.0015 ° even at 1 khz. this feature is critical for the measurement of non-sinusoidal and wideband signals, applied to analyze power quality and calibrate digital power meters.
● the capacity of loading current and withstanding current impulse is limited, but you can use a set of shunts to obtain a wide range of current measurement.
electrical specifications
resistance
current
phase
general specifications
● operating environment: +13 °c to 33 °c, r·h ≤50 %, altitude from 0 to 3,000 m.
● calibrate temperature: +18 °c to 28 °c
● storage environment: +5 °c to +45 °c, r·h from 15 % to 80 %.
● input interfaces: type-n (f) for 1 ma to 20 a, type-lc (f) for 50 a to 100 a.
● output interfaces: type-n (f)
● notes: the stability of resistance is affected by humidity, but the change is reversible. when stored in a harsh environment, it may cause the resistance to change by a value of ±20 ppm, and return to the original resistance within the next 30 days if the coaxial shunts are stored or operated in the specified environment later.
● dimension and weight:
accessory list
