td3310 three-凯发k8国际

overview

model td3310, a high-precision three-phase reference multimeter, can simultaneously measure multiple electrical parameters in an ac circuit by three-phase y/v and other wiring modes, such as voltage, current, frequency, phase, harmonic, active power/electric energy, reactive power/electric energy, apparent power, power factor, etc.

the optional accuracy class of voltage or current is 0.005, the corresponding optional accuracy class of power and electric energy is 0.01.

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

applications

● calibrate single-phase or three -phase ac voltage or ac current standard sources (class 0.02 and below)

● calibrate single-phase or three -phase ac active power sources (class 0.02 and below)

● calibrate three-phase electric energy meters (class 0.02 and below)

functions

● electrical parameter measurement: the ac voltage is from 6 v to 792 v, the ac current is from 1 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 2^nd to 64^th harmonic, analyze harmonic content and total harmonic distortion, and draw harmonic histogram.

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

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

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

features

● 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.

● minimize signal conversion, adc and other circuit drifts by self-calibration function to ensure values accurate for a long-term. the self-calibration function is still effective even with 100 a dc current in the loop.

● the temperature coefficient of voltage or current is less than 0.5 ppm/k, the 1 year change rate of major specifications is less than 50 ppm, and the average trouble-free running time of the instrument is more than 10,000 hours.

● 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

measurement characteristics

● range switching: automatic or manual

● measuring range: 6 v to 792 v

● minimum resolution: 10 μv @ 60 v range

● display: 7 digits

ac current

measurement characteristics

● range switching: automatic or manual

● measuring range: 1 ma to 120 a

● minimum resolution: 1 na @ 10 ma range

● display: 7 digits

frequency and phase

power and electric energy

measurement characteristics

● power / electric energy measuring range: 

combination of ac voltage range and ac current range

● power factor measuring range: -1.000 000…0.000 000…1.000 000

● 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: +15 °c to +35 °c, 20 % to 85 % r·h, non-condensing

● storage environment: 0 °c to +40 °c, <95 % r·h, non-condensing

● dimensions (w × h × d): 485 mm × 250 mm × 330 mm

● weight: 20.5 kg

● communication: rs-232 interface

selection guide