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td3100 single-phase reference multimeter

单相交流标准仪器,功率/电能测量的准确度为 0.01 

电量测量:电压最大 825 v,电流最大 120 a,手动 / 自动量程换挡


谐波分析:测量 2 ~ 64 次谐波

电能计量:标准电能脉冲输入 / 输出功能,可作为单相交流电能计量的标准表


model td3100, a high-precision single-phase reference multimeter, can simultaneously measure multiple electrical parameters in an ac circuit, such as voltage, current, frequency, phase, harmonic, active power/electric energy, reactive power/electric energy, apparent power, power factor, etc.

the optional accuracy classes of voltage or current are 0.01, 0.02 and 0.05, the corresponding optional accuracy classes of power and electric energy are 0.02, 0.05 and 0.1.

applied to calibrate ac standard source, and can be used as a reference meter for ac electric energy metering.

applications (class 0.02)


 calibrate single-phase ac voltage or ac current standard sources (class 0.05 and below)

 calibrate single-phase ac active power sources (class 0.1 and below)

 calibrate single-phase ac electric energy meters (class 0.1 and below)


 electrical parameter measurement: the ac voltage is from 12 v to 792 v, the ac current is from 2 ma to 120 a, automatic or manual switching on all ranges.

 waveform display: oscilloscope function can display the waveform of the measured electrical parameters in real time.

 harmonic analysis: measure 2nd to 64th harmonic, analyze harmonic content and total harmonic distortion, and draw harmonic histogram.

 phase measurement: measure phase difference between voltage and current, and intuitively display by phasor diagram.

 energy metering: standard energy pulse i/o function can be used as a standard for single-phase ac energy metering.

 other function: stability test, trend curve display, data statistics and analysis, etc.


 a wide range of ac currents can be measured by connecting each phase current input just with a pair of terminals.

 no shifting on the primary side of the transformers, it will not cause damage or change the measurement accuracy no matter which range suddenly enters a large current.

 high reliability, the switch will not damage the instrument in a limit state (e.g. 500 v, 100a), but can also ensure the value accurate.

 good electrical isolation and protection between ac voltage and ac current measurement loop.

 large lcd touch screen, more intuitive of value display and easier operation.

 easy to build automatic detection system with the built-in rs-232 interface.

electrical specifications

ac voltage


ac current


measurement characteristics

 range switching: automatic or manual

 measuring range: 2 ma to 120 a

 minimum resolution: 10 na @ 20 ma range

 display: 6 digits

frequency and phase


power and electric energy


measurement characteristics

 power / electric energy measuring range: 
combination of dc voltage range and dc current range.

 power factor measuring range: -1.000 00…0.000 00…1.000 00

 input of standard electric energy pulse: 
frequency ≤10 khz, input level from 0 to 3.3 v…24 v.

 output of standard electric energy pulse: 
high frequency fs @ 60 khz, low frequency fs @ 6 hz.

general specifications

 line power: 220 v ±22 v, 50 hz ±2 hz

 maximum power consumption: 80 va

 operating environment: 0 °c to +40 °c, 20 % to 85 % r·h, non-condensing

 storage environment: -20 °c to +70 °c, <95 % r·h, non-condensing

 dimensions (w × h × d): 390 mm × 220 mm × 265 mm

 weight: 9 kg

 communication: rs-232 interface

selection guide


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