Low Resistance Tester_Electronic measuring instruments_Product

TR2515

Low Resistance Tester

TR2515 DC resistance tester uses 32-bit Cortex-M3 CPU and 4.3-inch color LCD screen; The highest resistance measurement accuracy of 0.01% and the minimum resistance resolution of 0.1μΩ are second to none in China. Equipped with temperature measurement function, its temperature compensation and temperature conversion function eliminate the influence of ambient temperature on the test work; The offset voltage compensation function can effectively eliminate the electromotive force and contact potential difference of the DUT, and well eliminate the potential error caused by the influence of thermoelectric potential on the contact of the DUT. In particular, the resistance value changes greatly with temperature has a better test effect, and has a statistical analysis function, which can statistically analyze a large number of test data.

Features:
• 4.3-inch 24-bit true color LCD screen with 480×272 resolution
• Optional operation interface in Chinese and English
• The maximum sampling rate is about 100 times/second
• 5½-digit high-resolution measurement result display
• Highest resistance accuracy: 0.01%, minimum resolution: 0.1uΩ
• Basic temperature accuracy: 0.1°C
• Support PT100 and PT500 temperature sensors
• Low voltage test mode, effectively protect the DUT
• Temperature conversion function (Δt)
• Temperature Compensation (TC)
• Offset Voltage Compensation (OVC)

True Color LCD

The DC low resistance tester is equipped with a 4.3-inch 24-bit true color LCD screen with 480x 272 high definition resolution showing fine image quality. The test data, curve trend and status mark are displayed in rich colors in layers. The values are clear and easy to read, and the status is clear at a glance.

Statistical function

The DC low resistance tester has a built-in comprehensive statistical function, which can automatically calculate the average, maximum and minimum values of batch test data and visually present the data distribution range. The total standard deviation and sampling standard deviation are used to quantify the dispersion degree, and the engineering capability index (dispersion Cp, bias CpK) is matched to scientifically evaluate the stability and quality consistency of the production process.

Temperature compensation

The DC low resistance tester has a built-in temperature compensation function, which is compatible with PT100 and PT500 temperature sensors. It can collect the ambient temperature of the measured object in real time and automatically correct the resistance deviation caused by temperature change through an accurate algorithm-the metal resistance changes linearly with temperature. This function compensates the measured value to the equivalent resistance at the standard temperature to avoid the interference of temperature fluctuation on the milliohm measurement.

User self-calibration

The DC low resistance tester is equipped with a user self-calibration function, which is extremely easy to operate: only by short-circuiting the test clamp to the clamp, the instrument will clear the inherent interference values such as wire resistance and contact impedance in the current circuit and automatically incorporate them into the compensation reference.

Offset voltage compensation

The DC low resistance tester is equipped with an offset voltage compensation function, which can accurately offset the thermal electromotive force interference generated by the measured part due to material contact temperature difference, current on-off transients, etc.-if such microvolt-level micro electromotive force is not compensated, it will be superimposed on the measured voltage, resulting in deviation in low resistance measurement.

Model	TR2515
Display	24-bit color, RGB true color TFT LCD display with a resolution of 480×272.
Number of digits	5½ 位
Resistance measurement range	0.1μΩ—110MΩ
Resistance range	20mΩ、200mΩ、2Ω、20Ω、200Ω、2KΩ、20KΩ、100KΩ、1MΩ、10MΩ、100MΩ
Current	1A、100mA、100mA、10mA、1mA、100uA、10uA、1uA、100nA
Measurement accuracy	0.01% (see instruction manual for details)
Resistance measurement time	FAST:7ms; MED:22ms; SLOW1:102ms; SLOW2:402ms
Temperature measurement time	50±10ms
Measurement section configuration	Four ends
Low voltage measurements	Open Circuit Voltage:≤60mV Effective Range:2Ω，20Ω，200Ω，2KΩ
Thermoelectric potential elimination	√
Statistical functions	Mean, Maximum, Minimum, Total Standard Deviation, Sampling Standard Deviation, Engineering Ability Index (Dispersion Cp, Bias Cpk)
Measurement settings Parameters are saved	30 Groups
Temperature measurement	Sensor:PT100，PT500 -10.0℃—299.9℃； Display:-99.9℃—999.9℃
Other features	Temperature compensation function, temperature conversion function
Compare	Signal output: HI/IN/LO Signal: Tweet Mode: OFF, IN, HI/LO Limit Setting Mode: 10 gears, absolute value upper/lower limit, percentage upper and lower limit + nominal value
Interface configuration	USB DEVICE、USB HOST、RS232、LAN、HANDLER、GPIB(选件)

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TR2515