Description
The HT3542 Precision DC Resistance Tester is one of the most highly accurate DC Resistance Testers in the industry. The HT3542 DC Resistance Tester has a minimum resolution of 0.1μΩ. Its basic accuracy of 0.01% is well suited for inverter motor inspection and other areas that require high-resolution resistance measurement. The HT3545 features high-speed test lead anomaly detection and extremely short measurement cycles with a maximum sorting speed of 2.2mS, ensuring a fast and reliable sort every time. HT3542 is a compact version of HT3545.
Features
- Thermoelectric Compensation (OVC)
- Test range 0.01 μΩ; up to 1200 MΩ
- Low power resistance measurement
- Test the broken wire detection function, suitable for OS inspection of automatic production lines
- D/A output
- Automatic test function
- I/O port for external control, RS-232 interface, Ethernet port, temperature test interface, analog input and output port, particularly suitable for r to support automated devices to perform automated tests.
Application areas of the HT3542 series
HT3542 single channel tester is applied to small signal contacts, small fuses, wires, small magnetic parts, motor coils, transformer coils, solenoid coils, chokes, wire harnesses, connectors, relay contacts, fuses, resistors, conductive coatings, conductive rubber.
- Suitable for resistance testing that requires high accuracy
- Used for testing high speed and multi test point resistors
- When sorting large quantities of electronic components quickly
- For measuring the resistance of materials with high, medium and low conductivity.
- Suitable for characterizing the low resistance characteristics of electromechanical components under the conditions of low current of 100mA and low open circuit voltage of 30mV
Application-specific functions
Each test end is divided into 2 test lines, and a constant current source is added between the test lines. If the DUT is shorted at the end of the test, the current source outputs a low level, otherwise a high level. To check whether the test object or test lead has good contact.
Broken test leads and poor contact with the test object lead to incorrect assessments of the insulation test, which can lead to defective products on the market. In order to prevent this kind of situation, the device have a standard contact checking function, which can report the disconnection or bad contact to prevent the above situation.
Some circuit boards with high requirements in aerospace, automotive electronics etc. require testing of their vias and traces. Supporting multi-channel switching devices, the HT3545 precision resistance tester offers its sampling and switching at a speed of 2 ms per channel.
Other fields of application
Cables
Measurement of cable resistances
Engines
Motor resistance measurement
Electronic components
Measuring the resistance of electronic components
Sensors
Measuring sensor resistances
Multi-channel models HT3542/A-12H/24H
- Supports multi-channel test, up to 12/24 test points across four clamps
- Thermoelectric Compensation (OVC)
- Test range 0.01μΩ to 1200 MΩ
- Resistance measurement with low power
- Test wire break detection function, suitable for OS inspection of automatic production line
D/A output - 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 devices to carry out automatic tests.
Areas of application of the multi-channel models
The HT3542 series multi-channel resistance testers are specially designed for measuring three-phase motor coils, inspecting connectors and wiring harnesses, testing relay contacts and inspecting welded parts of battery terminals.Technical Data
Modelcomparison | HT3542 | HT3542-12H | HT3542-24H |
---|---|---|---|
Channels | 1 | 12 | 24 |
Display | 8.9 cm TFT LCD display | 8.9 cm TFT LCD display | 8.9 cm TFT LCD display |
Measurement parameters | DC resistance | DC resistance | DC resistance |
Test scope | 10mΩ~10MΩ,9 ranges | 10mΩ~10MΩ,9 ranges | 10mΩ~10MΩ,9 ranges |
Current (measurement) | DC 1A-0.5uA | DC 1A-0.5uA | DC 1A-0.5uA |
Measurement accuracy | ±0.01% reading.±0.001%f.s. | ±0.01% reading.±0.001%f.s. | ±0.01% reading.±0.001%f.s. |
Measuring range | 20mΩ / 200mΩ / 2000mΩ / 20Ω / 200Ω / 2000Ω / 20kΩ / 200kΩ/ 2000κΩ / 10μΩ | 20mΩ / 200mΩ / 2000mΩ / 20Ω / 200Ω / 2000Ω / 20kΩ / 200kΩ/ 2000κΩ / 10μΩ | 20mΩ / 200mΩ / 2000mΩ / 20Ω / 200Ω / 2000Ω / 20kΩ / 200kΩ/ 2000κΩ / 10μΩ |
Measurement speed | FAST(2.2ms), MED(50Hz:21ms,60Hz:18ms), SLOW1(102ms),SLOW2(202ms) | FAST(2.2ms), MED(50Hz:21ms,60Hz:18ms), SLOW1(102ms),SLOW2(202ms) | FAST(2.2ms), MED(50Hz:21ms,60Hz:18ms), SLOW1(102ms),SLOW2(202ms) |
Maximum test current | DC 1A | Max 5.5V | DC 1A | Max 5.5V | DC 1A | Max 5.5V |
Temperature | Range -10°C ~60°C | Accuracy ±1°C | Range -10°C ~60°C | Accuracy ±1°C | Range -10°C ~60°C | Accuracy ±1°C |
Correction | Short circuit reset | Short circuit reset | Short circuit reset |
comporator | HIGN/IN/LOW sort, 10 bin out | HIGN/IN/LOW sort, 10 bin out | HIGN/IN/LOW sort, 10 bin out |
Trigger Modes | Internal / external / bus / manual trigger | Internal / external / bus / manual trigger | Internal / external / bus / manual trigger |
Internal data storage | Support with PC software and storage in PC | Support with PC software and storage in PC | Support with PC software and storage in PC |
signal source | AC 1kHz | Test current: <150mA | AC 1kHz | Test current: <150mA | AC 1kHz | Test current: <150mA |
Resolution | 0.1μΩ | 0.1μΩ | 0.1μΩ |
Other functions | Temperature correction, line frequency setting | Temperature correction, line frequency setting | Temperature correction, line frequency setting |
Interfaces | External I/O, LAN, RS232 | External I/O, LAN, RS232 | External I/O, LAN, RS232 |
memory | Support with PC software and storage in PC | Support with PC software and storage in PC | Support with PC software and storage in PC |
Power(max) | 10W | 10W | 10W |
Power supply | Voltage: 100VAC~256VAC | Frequency: 50Hz~60Hz; | Voltage: 100VAC~256VAC | Frequency: 50Hz~60Hz; | Voltage: 100VAC~256VAC | Frequency: 50Hz~60Hz; |
Dimensions & weight | 325mm (L) x 215mm (W) x 96.5mm (D) | 2 kg | 325mm (L) x 215mm (W) x 96.5mm (D) | 2 kg | 325mm (L) x 215mm (W) x 96.5mm (D) | 2 kg |