HT3542-12/24H Multi-channel High Speed High Precision DC Resistance Meter
HT3542 Precision DC Resistance Tester is one of the highest-precision DC resistance testers in the industry
Overview
The HT3542 is also can be work as multi-channel resistance tester. Each model has two-wire and four-wire switchable modes. They realize maximum two-wire 48-channel resistance test and four-wire 24- channel resistance test. Based on the identical circuit design of the classic model HT3542 resistance meter, HT3542-12 and HT3542-24 is outstanding in anti-interference performance, make it very suitable for supporting automation equipment to complete automatic test.
HT3542 multi-channel resistance tester has two-wire and four-wire switchable modes. Each two-wire single-card can test maximum 24-channel and four-wire single-card can test maximum 12-channel; two-wire dual-card can test maximum 48-channel, four-wire dual-card can test maximum 24 -channel;
HT3542 instrument comes standard with RS232/RS485/LAN and I/O interface, especially suitable for supporting automatic equipment to complete automatic test.
Features
- Support multi-channel test, up to 24 test points via four terminals
- Thermoelectric compensation (OVC)
- Test range 20mΩ to 10 MΩ
- Low power resistance measurement
- Test cable open circuit detection function, suitable for OS inspection of automatic production lines
- DCoutput
- Automatic test function
- External control I/O port, RS-232 interface, Ethernet port, temperature test interface, analog input and output port, especially suitable for supporting automatic equipment to complete automatic test.
Rear Panel HT3542 Benchtop Resistance Tester
HT3542 Multi-channel Resistance Tester Operation Interface
Application
HT3542-12H and HT3542-24H multi-channel resistance tester is special for measurement of three-phase motor coil; inspection of connectors and wiring harness; inspection of relay contacts; inspection of welded parts of battery terminals
Application Example1— 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.
Application Example2—Poor Contact Inspection
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.
Application Example3—PCB Board Test
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.
Specification
| Model | HT3542-12H | HT3542-24H |
| Display | 3.5-inch TFT-LCD | |
| Measurement parameters | DC resistance | |
| Resolution | 0.1μΩ | 0.1μΩ |
| Test scope | 10mΩ~10MΩ,9 ranges | |
| Measuring current | DC 1A-0.5uA | |
| Measuring accuracy | ±0.01%rdg. ±0.001%f.s. | |
| Measuring speed | FAST(2.2ms), MED (50Hz:21ms,60Hz:18ms), SLOW1(102ms), SLOW2(202ms) | |
| Measurement range | 20mΩ/200mΩ/2000mΩ/20Ω/200Ω/2000Ω/20kΩ/200kΩ/2000ΚΩ/10ΜΩ | |
| Signal source | DC：100mA-1A, Max:5.5V | |
| Temperature | Range: -10℃~60℃ | |
| Accuracy:1℃ | ||
| Humidity range | 23±5℃，less than 80RH | |
| Calibration | Short-circuit reset for all ranges | |
| Comparator | 10-bin sorting, output signal HIGH/IN/LOW | |
| Data storage | Support with PC software and store in PC | |
| Trigger | Internal, manual, bus trigger | |
| Other | Test lead anomaly detection | |
| Interface | External IO, LAN,RS-232 | |
| Power supply | Voltage:100VAC～256VAC; Frequency: 50Hz～60Hz; Rated power:40VA | |
| Size & weight | 325mm*215mm*96.5mm(L*W*H) 2kg |
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| Accessories | HT9348 temperature probe, PB36 connector, HT9344 test clip, HT9800 communication cable, power cord | |
Specification Selection Table
| Model | Channel No. | Type | Test Accuracy | Resolution | Display |
| HT3545 | Single | Standard | 10mΩ~1000MΩ | 0.01μΩ | 6 1/2 |
| HT3542 | Economy | 20mΩ~10MΩ | 0.1μΩ | 5 1/2 | |
| HT3542-12H | 12-Channel | Functional | 0.1μΩ | ||
| HT3542-24H | 24-Channel | Functional | 0.1μΩ |
Accessories
