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td4507 field calibrator for ac sampling and transmitters


电量直接测量:10 v ~ 480 v0.05 a ~ 12 a

电流钳形夹测量:0.1 a ~ 120 a


谐波分析:测量 2 ~ 31 次谐波


model td4507, a portable calibrator for ac sampling and transmitters. composed of electrical parameters measurement, ac sampling calibration, harmonic analysis, waveform and phasor diagram display, data management or other functions. applied to calibrate the ac sampling devices by real load in field for electric power.


● electrical parameters measurement: the ac voltage is from 10 v to 480 v, the current is from 0.05 a to 12 a. automatic or manual switching on all ranges.

● current measurement by clamp: online measurement of current on ac lines from 0.1 a to 120 a.

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

● phase measurement: measure phase difference between the three-phase electrical parameters, and intuitively display by phasor diagram.

● harmonic analysis: measure 2nd to 31st harmonic, analyze harmonic content and total harmonic distortion, and draw harmonic histogram.

● wiring identification: identify various three-phase wiring modes, report the results and provide the correction coefficient of parameters.

● transmitter measurement: it can display the measured electrical parameters in real time or display the physical quantities such as temperature and pressure.


● power supply: ac power supply mode, or high-capacity lithium battery power supply mode with a continuous operation time of more than 8 hours.

● data storage: record the measurement data of thousands of measured meters, and transfer it to the management software.

● human-computer interaction: the function of locking screen is convenient for operators to read and switch the lock/unlock with one-touch.

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

● portability: the portable box with small size and light weight is easy to carry.

electrical specifications

three-phase voltage / current


measurement characteristics

● measuring range of voltage: 10 v to 480 v

 measuring range of current: 0.05 a to 12 a @ direct measurement mode, 0.1 a to 120 a @ clamp measurement mode.

● display: 6 digits

● frequency: the range is from 45 hz to 65 hz, and the accuracy is ±0.01 hz.

● phase: the range is from 0.000 ° to 359.999 °, the resolution is 0.01 °, and the accuracy is ±0.05 ° at the direct measurement mode and ±0.2 ° at the clamp measurement mode.

three-phase power


measurement characteristics

● measuring range of ac power: combination of ac voltage range and ac current range.

● range of power factor: -1.0000…0.0000…+1.0000

dc small signal measurement


general specifications

● line power: 225 v ±27 v, 50 hz ±2 hz

● operating environment: -20 °c to +55 °c, 40 % to 80 % r·h, non-condensing

● storage environment: -20 °c to +70 °c, <80 % r·h, non-condensing

● dimensions (w × h × d): 370 mm × 170 mm × 270 mm

● weight: 5 kg

● communication: rs-232 interface

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