Overview

Enviro Forest 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)