TR-3542 series High Precision DC Resistance Meter (0.1µΩ ~ 20MΩ)

TR-3542 is precision DC resistance meter, one of the most accurate DC resistance testers in the industry. The TR-3542 series has a 6.5 digit display, a minimum resolution of 0.1μΩ, and a basic accuracy of 0.01%. It is quite suitable for checking motor windings, inverters, and other areas that require high-resolution resistance measurements. It also has fault detection of test cables. High speed and very short measurement cycles. With a maximum sorting speed of 2.2ms, it ensures high-speed and reliable sorting every time.

 High accuracy of 0.01% with a resolution of 0.1µΩ, a maximum test current of 1A.
 Resistance measurement range of 0.1µΩ ~ 20MΩ and temperature of 0 ~ 99.9°C.
 Thermo-electric compensation (OVC) and low power resistance measurement.
 Low power resistance measurement.
 Test cable open circuit detection function, suitable for OS inspection of automatic production lines D/A output.
 Analog output interface: 0 ~ 1.5V.
 With thermal potential compensation function (OVC)
 Model TR-3542-12/24 (multi-channel resistance measurement model)
 Supports interfaces such as RS-232, External I/O, Ethernet, temperature test, analog input/output, ideal for supporting automatic equipment to perform automatic testing.

 High Speed High Precision DC Resistance Meter Software Operation Interface

 Cable Detection Function

Circuit principle
Each test end is divided into 2 test lines, and a constant current source is added between the test lines. When the DUT is short-circuited at the test end, the current source outputs a low level, otherwise it outputs a high level. Use in this way to check whether the test object or test line is in good contact.

Broken test leads and poor contact with the test object will lead to misjudgment of the insulation test, which may cause defective products to flow into the market. In order to prevent this kind of situation, we have a standard contact check function, which can notify the disconnection or poor contact to prevent the above situation.

For some PCBs with high requirements in aerospace, automotive electronics, etc., it is required to test their vias and traces. With the support of multi-channel switching equipment, HT3545 precision resistance tester offers its scanning and switching at the speed of 2ms per channel.