td1450 calibrator for loop resistance testers -凯发k8国际

overview

model td1450, a calibrator that can accurately simulate dc standard resistance. the dc resistance range is from 1.000 0 μω to 200.000 ω, and the optional accuracy classes are 0.02 and 0.05. applied to calibrate loop resistance testers, dc resistance testers or other dc low resistance apparatuses.

meet the requirements of jjg 1052-2009 verification regulation of loop resistance testers and dc resistance meters and dl/t 967-2005 verification regulation of loop resistance tester and dc resistance high-speed tester. the following tests are performed according to the requirements of regulations: resistance error, linear error, stability error, operating current error and overshoot measurement.

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, the optimal accuracy is up to ±0.015 %, and fully-automatically switch on all ranges.

● it can also be used as a best ammeter with the functions of dc ripple 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.

dc resistance

equivalent resistance characteristics

● resistance range: 1.000 μω to 200.000 ω

● 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