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td1300 high-precision dc reference meter

区域级的直流电能计量标准,考核直流电能表检定装置及标准表


功率 / 电能测量不确定度为 0.01 级 / 0.02 级 / 0.05 级可选

直流电压测量: ±(10 mv ~ 1100 v 

直流电流测量: ±(1 μa ~ 600 a 

直流小信号电压测量: ±(10 μv ~ 11 v 


overview

model td1300, a high-precision dc reference meter, which can directly measure dc voltage from 10 mv to 1100 v, dc current from 1 μa to 600 a, dc low-voltage from 10 μv to 11 v, and the reverse measurement is also supported. the optional accuracy classes are 0.005, 0.01 and 0.02.

the apparatus is also a reference meter for dc electric energy. the optional accuracy classes of power and electric energy are 0.01, 0.02 and 0.05 (corresponding to the voltage and current classes above). as a regional measurement standard of dc electric energy, applied to calibrate dc electric energy calibrators, voltage and current standards.

correspondence of classes


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applications


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features

● dc high-current measurement: a built-in wideband current comparator, convert ac and dc current signals that containing complex signals into voltage signals(i/v conversion). applied to measure dc electric energy calibrator by direct access.

 stability test: draw the real-time curve of electricity, and show its short-term stability by histogram.

● statistics and analysis of data: calculate the electrical parameters such as the maximum, minimum, average, difference, standard deviation, etc.

● ripple measurement: the measurement bandwidth is up to 5 khz with an accuracy of ±0.02 % of range.

● high reliability: current measurement circuit and the two voltage measurement circuit are completely electrically isolated.

when measuring real load power, the current measurement circuit can be placed on the high or low side of the voltage circuit.

● electric energy metering: standard i/o pulse interfaces, used for building a standard for high-class dc electric energy metering.

● excellent human-computer interaction: 8-inches lcd touch screen, more intuitive of value display and easier operation.

electrical specifications

dc voltage

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measurement characteristic
● range switching: automatic or manual
measurement characteristic

● measuring range: ± (10 mv to 1100 v)

● minimum resolution: 10nv @ 100 mv range

● display: 8 digits @ class 0.01

● input resistance: 1 mω

● input protection: 1100 vpk, continuous.

dc current

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measurement characteristic

● range switching: automatic or manual

● measuring range: ± (1 μa to 600 a)

● minimum resolution: 1 pa @ 10μa range

● display: 8 digits @ class 0.01

● input protection: 
range of 10 μa to 1 a is i1, range of 5 a to 50 a is i2, range of 100 a to 500 a is i3.
when the input is i1,can replace fast-acting fuses of 2.5 a - 250 v from the outside.
when the input is i2 or i3, can overload doubled rated current for 5s without protection.

dc low-voltage (option)

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measurement characteristic

● range switching: automatic or manual

● measuring range: ± (10 μv to 11 v)

● minimum resolution: 0.1 nv

● display: 8 digits

● input resistance: >1 gω

● input protection: 110 vpk, continuous.

ripple

● frequency range: 1 hz to 5 khz

● uncertainty (k=2): ±0.05 % of range, true value.

electric energy (option) / power

● measuring range: combination of dc voltage range and dc current range.

● accuracy: addition of dc voltage accuracy and dc current accuracy.

● input of standard electric energy pulse: directly receive the electric energy pulse of the checked meters.

● output of standard electric energy pulse: the amplitude of the signal is 5 v, ttl level.
fh = 60 khz × power value ÷ voltage range value ÷ current range value
fl = 60 khz × power value ÷ voltage range value ÷ current range value ÷ 10000

● electric energy measurement error: automatically display with 0.0001%.

general specifications

● line power: 220 v ±22 v, 50 hz ±2 hz

● maximum power consumption: 100 va

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

● storage environment: +5 °c to +40 °c, <95 % r·h, non-condensing

● dimensions (w × h × d): 460 mm × 215 mm × 390 mm

● weight: 16 kg

● communication: rs-232 interface

selection guide

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