do you know the product name or model?
for more product details, please call us：0731-84930888
for more product details, please call us：0731-84930888
td1455 equivalent resistance standard overview
model td1455, an apparatus that can accurately simulate ac and dc standard resistance. the dc resistance range is from 1.000 0 μω to 200.000 ω, the ac resistance range is from 30.000 μω to 150.000 ω, and the optional accuracy classes are 0.02 and 0.05. applied to calibrate loop resistance testers, earth-continuity testers or other ac/dc low resistance apparatuses.
meet the requirements of following regulations:
● jjg 1052-2009 verification regulation of loop resistance testers and dc resistance meters
● dl/t 967-2005 verification regulation of loop resistance tester and dc resistance high-speed tester
● jjg 984-2004 verification regulation of earth-continuity testers
● gb/t 28030-2011 earth continuity tester
the following tests are performed according to the requirements of regulations: resistance error, linear error, stability error, operating current error, operating current overshoot measurement, warning settable error and test current settable error.
features
● full digital adjustment and programming interface, the resolution is as low as 2 nω which is greatly better than physical resistors.
● compared with the traditional physical standard resistance box, there is no error effect caused by the residual resistance and contact resistance from bandswitch, and avoids the resistance change caused by overload.
● compared with electrical analog resistance, it has the features of higher sensitivity, more variable digits, lower noise, higher accuracy, intuitive display, preventing incorrect operation and easier operation.
● directly measure ac or dc current with a wide range of 0.01 a to 600 a, and fully-automatically switch on all ranges.
● it can also be used as a best ammeter with the functions of dc ripple measurement, frequency measurement, harmonic measurement, data statistics and analysis, stability test, etc.
● the current measurement channel has the waveform display function for measuring the operating current overshoot of measured meters.
● hd lcd touch screen can display the input current, output voltage, equivalent resistance and the error of measured meters at the same time.
● good protection, high reliability and self-calibration function.
electrical specifications
dc current measurement
measurement characteristics
● range switching: automatic or manual.
● measuring range: 0.01 a to 600 a
● display: 6 digits
● ripple: measuring range is from 1 hz to 1 khz, the accuracy is ±0.02 % of range, rms.
● input protection: withstand 2 times rated current for 5 s.
ac current measurement
measurement characteristics
● range switching: automatic or manual.
● measuring range: 0.01 a to 600 a
● display: 6 digits
● frequency: measuring range is from 1 hz to 65 hz, the accuracy is ±0.01 hz.
● harmonic: 2nd to 32nd.
● input protection: withstand 2 times rated current for 5 s.
dc resistance
equivalent resistance characteristics
● resistance range: 1.000 μω to 200.000 ω
● display: 6 digits
ac resistance
equivalent resistance characteristics
● resistance range: 300.00 μω to 150.000 0 ω
● frequency: measuring range is from 1 hz to 65 hz, the accuracy is ±0.01 hz.
● display: 6 digits
general specifications
● line power: 220 v ±22 v, 50 hz ±2 hz
● operating environment: +18 °c to +28 °c, 40 % to 80 % r·h, non-condensing
● storage environment: -20 °c to +70 °c, <80 % r·h, non-condensing
● dimensions (w × h × d): 460 mm × 220 mm × 370 mm
● weight: 12.5 kg
● warm-up: 30 minutes
● communication: rs-232 interface
selection guide
