BR - type A Conductor Resistance Material Resistivity Intelligent Tester is high precision, intelligent integrated combination of resistance measurement experiment device, it can realize the electric wire electric cable conductor dc resistance measurement, conductor material volume resistivity measurements, contact resistance measurements. Test instrument can automatically measure conversion conductor resistance and according to the environmental temperature conversion to 20 ℃, the automatic measuring volume resistivity and quality resistivity conversion to 20 ℃. Can be upgraded to replace QJ36、QJ19、QJ57、QJ44、 microhm meter and other traditional measuring equipment.
Tester can achieve wide range 0.01μΩ–2.5 MΩaccuracy±0.02% of the resistance measurement. Resistance measurements using four terminal measurement method, automatic elimination of errors in contact resistance.
12 level measuring gear 10 level measuring current automatic conversion, automatically select the appropriate gear, automatic conversion temperature coefficient, do not need to manually choose, the measurement automatically saved.
0.1 mΩ–1MΩ11 level standard resistance calibration, ensure the accuracy of measurement.
Tester can offers from 0.001mA–10A multistage programmable constant current source output, absolute accuracy is better than that of 0.01% plus or minus 0-2.5 V voltage measurement, measurement of metal material resistivity, resistivity can be measured all specifications of copper rod, copper wire, copper wire, aluminum rod, aluminum wire, hard aluminium wire, aluminium alloy wire.
Using high precision PT100 temperature, can realize accuracy±0.1 ℃ temperature measurement.
Temperature conversion can be calculated according to the actual measured temperature, and can be calculated according to the set temperature. The corresponding electrical cross-sectional area can be calculated according to the conductor resistance.
Temperature coefficient of resistance automatic conversion, conductor resistance measurement results directly converted to 20 ℃ underΩ/km values, resistivity measurements directly converted to 20 ℃ under standard resistivity. The conversion materials of resistivity are: soft copper, hard copper with 2mm and above, hard copper with 2mm and below, soft aluminum and hard aluminum, etc., suitable for measuring different conductor materials.
Automatic zero correction, forward and reverse measurement to reduce the thermoelectric potential effect of measuring current.
Automatic discharge protection, prevent equipment damage due to static shock in the process of wiring.
Tester provides computer software control, host and computer use USB communication control, plug and play. Provide wire and cable standard database software, when measuring the input specifications, can realize automatic measurement, automatic conversion, automatic judgment result.
Adaptive AC100V–250V, 50/60 Hz power supply system.
Resistance measurement: the measuring range: 0.01μΩ- 2.5 MΩ
Measuring accuracy:±0.02% (calibration)
Voltage measurements: 0-2.5 V±0.01%
Temperature measurement: -99-99 ℃ (extensible) accuracy:±0.1 ℃ (-20-50 ℃)
Current indicator: constant current gear: 1μA, 10μA, 100μA, 1 mA, 10 mA, 0.1 A, 0.5 A, 1 A, 5 A, 10 A