Overview
Enviro Test Construct`s four wire digital micro ohmmeter with usb data upload and 1μω resolution is Digital DC low resistance meter, also known as micro ohmmeter, ohmmeter, equipotential tester, using the microprocessor technology, four wire test, safety, precision and reliability. Mainly used to measure the wire resistance of cables, the contact resistance of switches, connectors, relays, the resistance of coils, motors, transformer windings, and equipment enclosures, lightning protection belts, ground beams, structures, cabinets, steel bars, water pipes, windows, guardrails, and heat dissipation. Connection resistance test between metal components of objects such as devices, assembly lines, etc.
It is widely used in telecommunications, electric power, meteorology, computer rooms, oil fields, power distribution lines, tower transmission lines, gas stations, factory grounding grids, lightning rods, etc.
Features
- Four terminal measurement method ensuring high accuracy and stability.
- Wide measuring ranges from 0.01 mΩ to 300 kΩ with 1 μΩ resolution.
- Large LCD display with backlight for clear readings in dim environments.
- Data storage capacity up to 500 groups with review and retrieval function.
- USB data upload and PC software support for historical data management.
- Built in overload protection and automatic shutdown for safety and energy saving.
- Portable and lightweight design suitable for field and laboratory use.
Technical Specifications
| Measuring Range | 0.001 mΩ to 300 kΩ |
| Resolution | 1 μΩ |
| Accuracy | ±0.1% FS ±20 dgt |
| Test Method | Four wire method |
| Maximum Test Current | 1.2 A (depending on range) |
| Test Voltage | ≤ 4.2 V |
| Data Storage | 500 groups with review function |
| Communication Interface | Micro USB |
| Display Type | LCD with backlight |
| Measurement Speed | 2 times/sec |
| Power Supply | DC 3.7 V 2000 mAh rechargeable lithium battery |
| Power Consumption | Standby 100 mA Measurement up to 2 A |
| Automatic Shutdown | After 15 minutes |
| Operating Temperature | 14 °F to 122 °F (-10 °C to 50 °C), ≤ 80% RH |
| Storage Temperature | -4 °F to 140 °F (-20 °C to 60 °C), ≤ 70% RH |
| Dimensions | 7.36 in x 4.69 in x 1.97 in (18.7 cm x 11.9 cm x 5 cm) |
| Weight | 1.06 lb (480 g) |
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