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ITEMLIST
Products Infomation
- Products by Category
- Electronic measuring instruments
- Electrical safety testers / measuing instruments
- MICROTEST Wire Cable Harness Tester 8740
One-machine Detection of Electrical Characteristics for Wire Harness/Connectors, including Conductivity, Short/Open Circuits, Voltage Insulation Resistance, Resistance, and Capacitance.
MICROTEST 8740 series Cable Harness Tester employs two-wire measurement technology and is suitable for products that do not require very low resistance measurements, considering the cost factors of the testing fixture. The testing capabilities include continuity impedance, open/short circuit, AC/DC safety withstand voltage, IR insulation, and component testing (resistor/capacitor/diode). The testing points can be selected from 128/256/512 options, with a maximum AC withstand voltage output of 1000V and a maximum DC withstand voltage output of 1500V. It supports PC connectivity software and BAR Code scanning, meeting the requirements for automated line testing in wire and connector production.
Wire Cable Harness Tester
Model:
8740
Maker:
MICROTEST
MICROTEST 2-Wire Tester8740 insert port
The measurement items of 8740/8740NAK cable or harness tester have (1) Open/Short;(2) Conductance; (3) Components; (4) AC Hipot; (5) DC insulation/ Hipot; (6) Quick conductance (7) Intermittence O/S, and (8) Quick Intermittence open circuit. It supports RS-232, USB Host, Print, Remote interfaces.
| Conductance | Detect the contact resistance in the cable connector. The conduction resistance is over the standard. |
| Open/Short Test | Make sure the contact of wire work properly.
Open: The wire should be contact, but it doesn’t Short: The wire shouldn’t be contacted, but it does |
| Intermittence O/S | Make sure the cable has intermittent open/short
defection |
Put a stabile high voltage on cable to make sure the quality of DUT
- _DC insulation
The result will judge by the rate of insulation resistance. Insulation resistance defect may cause DUT be penetrated or leakage current under high voltage.
- _Arc Test
Some high precision product for automobile and military can’t accept any arc under high voltage.
Inspect the loop contact in the connector fit the request of insulation and voltage.
Insulation resistance between loop is lower than the standard.
The voltage resistance is lower than the standard that cause leakage current.
Support for Component Measurement Functionality
_Resistance Test
_Capacitance Test
_Diode Test
Features
- Test pin 128/256/512
- Number of test file up to 500 sets
- Open/Short
- Conductance
- AC/DC Hipot Test
- DC insulation
- Quick conductance
- Multiple DUT test
- Support bar code scan and print function
- Automatically identify the normal or reverse plugin of wire or connectors
Application
Selection
| Model | 8740NAK | 8740NK | |
| AC Hi pot Test | 100V-700V | – | |
| DC Hi pot Test | 50V-1000V | 50V-1000V | |
| Test Pin | 1024 | ||
Cable Harness Tester
Specifications
| Model | 8740FA |
| AC Hi pot Test | 100V-1000V |
| DC Hi pot Test | 50V-1500V |
| Test Pin | 128/256/512 |
| Model | 8740NA |
| AC Hi pot Test | 100V-700V |
| DC Hi pot Test | 50V-1000V |
| Test Pin | 128/256/512 |
| Model | 8740N |
| AC Hi pot Test | – |
| DC Hi pot Test | 50V-1000V |
| Test Pin | 128/256/512 |
| Model | 8740 |
| Safety Hi pot Test | |
| AC Hipot Leakage Current | 0.01mA -5mA |
| AC Arcing Detection | 0-9 |
| DC Hipot Leakage Current | 0.1µA-1000µA |
| DC Arcing Detection | 0-9 |
| DC Hipot Insulation Resistance | 1MΩ-1.2GΩ |
| Hipot Output Accuracy | ±5% |
| Hipot Measurement Accuracy | ±5% |
| Rated Output | 5Vdc |
| Hipot Measurement Time | 0.01秒 – 60秒 |
| Wire Specifications | Maximum allowable capacitance 5μF |
| Low Voltage Electrical Test | |
| Measuring Mode | 2-Wire Test |
| Conductance | 100mΩ-52Ω |
| Intermittence Conductance | 100mΩ-52Ω |
| O/S
Intermittence O/S Quick Intermittence open circuit |
1kΩ-100kΩ |
| O/S Determinal Judge | ● |
| Single-Side Test | ● |
| Component test | |
| Resistance | Measurement Range
100mΩ-2MΩ |
| Level Signal
2.4V (Fixed) |
|
| Current Signal
35mA |
|
| Capacitance | Measurement Range
10pF-3µF |
| Level Signal
1.2V (Fixed) |
|
| Frequency Signal
AUTO Gear (Fixed) 48Hz/480Hz/4.8kHz/48kHz |
|
| Diode | Measurement Range
0-6.8V |
| Other Function | |
| Advanced Functions | Programmable continuous test / Pin
search/Auto-diagnosis |
| Test Scan Mode | Auto, Manual, External Trigger |
| Measurement Signal | Low Voltage Measurement Signal |
| Panel | System/Rapid /Edit / Function |
| Indicator | Pass/Fail HV LED red-green indicator
lights / Screen Display /Sound |
| Operation | Manual, Auto, Remote Control |
| Built-in Storage | Number of test file up to 500 sets |
| Power Supply | Fixed Voltage
115/230 Vac ±10% |
| Frequency
60/50Hz |
|
| Power consumption | 300VA |
| Environment | Temperature
0℃-40℃ |
| Humidity
RH≦75% |
|
| Display | 320*240 dot-matrix display |
| Dimension
(W*H*D) & Weight |
128PIN
435x145x406 mm 8.44Kg |
| 256PIN
435x145x406 mm 9.3Kg |
|
| 512PIN
435x190x406 mm 14Kg |
|
| Interface | RS-232, USB Host, Print, Remote |
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