Overview
Enviro Test Construct low resistance ohmmeter uses 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. It is composed of host, monitoring software, test line, communication line, etc. The large-screen LCD display of the main unit is clear briefly, and the port overload prevention function prevents the instrument from being burned out by mis operation. Store 500 sets of data, resistance measurement range of 0.001 mΩ to 300.0 KΩ. The upper computer software has functions such as historical data reading, consulting, saving, and reporting.
Technical Specifications
| Resistance range | 0.01 mΩ to 30.00 KΩ |
| Resolution | 10 uΩ |
| Accuracy | ±0.1 % FS |
| Data storage | 500 sets |
| USB Data upload function | No |
| Charging function | Yes |
| Function | Mainly used to measure the wire resistance of cables, the contact resistance of switches, connectors, relays, the resistance of coils, motors, transformer winding and metal riveting resistance, the connection resistance test between metal components, the low-value resistance test, and the grounding grid Resistance test of connecting conductor, contact resistance test, etc. |
| Detection method | Four-wire method test |
| Test current | ≥1 A |
| Open circuit voltage | ≤4.2 V |
| Overload protection | Yes |
| Power | Measuring power ≤8 W |
| Power supply | DC 3.7 V 2000 mAh |
| Backlight | Controllable gray and white screen backlight, suitable for dim places |
| Display model | LCD |
| Measure time | About 2 times per second |
| USB interface | With micro-USB interface |
| Communication line | micro-USB 1 piece |
| Data storage | 500 groups, “MEM” storage indication, display “FULL” symbol to indicate storage is full |
| Data review | Data review function “MR” symbol display |
| Overflow display | Over-range overflow function “OL” symbol display |
| Battery voltage | Real-time display of battery power, reminding timely charging when battery voltage is low |
| Automatic shut-down | “APO” indicates, automatic shutdown after 15 minutes |
| Power consumption | Standby about 100 mA (backlight off) Turn on backlight about 105 mA Measure 2 A Maximum (backlight off) |
| Working temperature and humidity | 14 °F to 122 °F (-10 ℃ to 50 ℃) Below 80 % RH |
| Storage temperature and humidity | -4 °F to 140 °F (-20 ℃ to 60 ℃) Below 70 % RH |
| Overload protection | AC 220 V per 0.0001 second between C1 to C2 P1 to P2 ports, after overload protection, you need to restart the meter to test normally |
| Insulation resistance | More than 10 MΩ (Between circuit and case 500 V) |
| Pressure resistance | AC 3700 V per rms (Between circuit and case) |
| LCD size | 2.8 in x 2.1 in (7.2 cm × 5.5 cm) |
| Instrument size | 7.3 in x 4.6 in 1.9 in (187 mm × 119 mm × 50 mm) |
| Weight | 1.05 lb (480 g) |
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