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td4200 calibration device for three-phase apparatuses 宽量限、高精度、多功能的电测量综合台体装置
三相电量输出与测量：电压最大达 825 v，电流最大达 120 a，电流输出最小低至 0.1 ma
检定台设有二套互相独立的输出与测量端钮，通过软件切换实现“源检表”或“表检源”
谐波输出功能：三相输出可加载 2 ～ 21 次幅度与相位均可调的谐波
谐波测量功能：三相输入可测量 2 ～ 64 次谐波
overview
model td4200, an integrated calibration device with wide range, high accuracy and multi-function. composed of high-precision three-phase source, reference three-phase multimeter, high-precision dc source, workbench and proprietary calibration software. the optional accuracy classes of three-phase power are 0.01 and 0.02.
applied to calibrate three-phase apparatuses, multimeters, transmitters and other electrical measurement devices.
this calibration device complies with the following standards:
● jjg 124-2005 verification regulation of amperemeters, voltmeters, wattmeters and ohmmeters
● jjf 1284-2011 calibration specification of calibrators for electrical meters
● dl/t 1112-2009 verification code of verification equipment for ac&dc meter
applications
features
● three-phase electrical parameters output: the voltage is up to 825 v, the current is up to 55 a, and the current is as low as 0.1 ma.
● switching between sources and meters: there are two independent output and measuring terminals, and the switching between sources and meters is done by the proprietary calibration software.
● harmonic output: the output can load 2nd to 21st standard harmonics with adjustable amplitude and phase to test harmonic influence on the checked meters.
● harmonic measurement: measure the harmonic from 2nd to 64th, analyze each order harmonic content and the total harmonic distortion of the checked sources.
● good load capacity of the three-phase source output, can calibrate the analogue meters.
● all the sources, meters, terminals and interfaces are modular, easy to disassemble and calibrate.
● there is a lcd control panel on the workbench, and all electrical parameters display on the panel, easy to observe and operate.
● dc electrical parameters output: the voltage is up to 1100 v, the current is up to 110 a, and the current is as low as 1 μa.
● the proprietary calibration software supports the communication with most checked meters or checked sources for full-automatic calibration.
● full-automatic calibration includes the following contents: basic error, output stability of the source, repeatability of measurement, calculation of uncertainty, etc.
● support the automatic rounding to test data, and automatically determine the eligibility.
● support the custom report printing, historical data and report retrieval, annual error analysis or other data management.
electrical specifications
three-phase voltage output
output characteristics
● output range of voltage: 0.1 v to 825 v
● resolution: 0.001 % of range
● display: 7 digits
● distortion: <0.2 %
● protection: short-circuit protection and overload protection.
three-phase current output
output characteristics
● output range of current: 1 ma (or 0.1 ma) to 120 a
● resolution: 0.001 % of range
● display: 7 digits
● distortion: <0.2 %
● protection: open-circuit protection, overload protection.
ac power output
output characteristics
● output range of ac power: combination of ac voltage range and ac current range.
● range of power factor: -1.0000…0.0000…+1.0000
frequency, phase, harmonic and symmetry output
ac voltage measurement
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
measurement characteristics
● range switching: automatic or manual
● measuring range: 1 ma (or 2 ma) to 120 a
● minimum resolution: 10 na @ 10 ma (or 20 ma) range
● display: 7 digits
frequency and phase measurement
ac power and electric energy measurement
measurement characteristics
● power / electric energy measuring range:
combination of dc voltage range and dc 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
dc voltage output (option)
output characteristics
● output range of voltage: 1 mv to 1100 v
● resolution: 0.001 % of range
● display: 7 digits
● ripple coefficient: <0.5 %
● protection: short-circuit protection and overload protection.
dc current output (option)
output characteristics
● output range of voltage: 1μa to 33 a (or 110 a)
● resolution: 0.001 % of range
● display: 6 digits
● ripple coefficient: <0.5 %
● protection: open-circuit protection and overload protection.
dc power output (option)
● output range of dc power: combination of dc voltage range and dc current range.
● accuracy of dc power: addition of dc voltage accuracy and dc current accuracy.
dc small signal measurement (option)
general specifications
● line power: 220 v ±22 v, 50 hz ±2 hz
● operating environment: 0 °c to +40 °c, 20 % to 80 % r·h, non-condensing
● storage environment: -20 °c to +70 °c, <95 % r·h, non-condensing
● dimensions (w × h × d): 2750 mm × 1050 mm × 900 mm (workbench)
● weight: 200 kg (workbench)
● communication: rs-232 interface
selection guide
