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ES3022 Multi-function Clamp Ground Resistance Tester(3/4 wires)

Model	ES3022	ES3022E	ES3022F
Clamp resistance Range	0.00Ω-1500Ω	0.00Ω-1800Ω	0.00Ω-2000Ω
Leakage current range	0.000mA-40A	0.000mA-50A	0.000mA-60A
Current resolution	1uA	1uA	1uA
Three-four-wire method range	0.00Ω-3000Ω	0.00Ω-30kΩ	0.00Ω-30kΩ
Soil resistivity range	○	0.00Ω-9999kΩm	0.00Ω-9999kΩm
Ground voltage range	600V	600V	600V
Bluetooth	○	○	●
Built-in rechargeable battery	●	●	●
TFT Color display	●	●	●
USB Data upload function	●	●	●
data storage	●	●	●
Real-time battery power indicator	●	●	●
Backlight	●	●	●
Alarm function	●	●	●
Low battery voltage indication	●	●	●
Overload protection	●	●	●
○ No ● Yes

Function	Ground resistance test, loop resistance test, AC current test, AC voltage test
Accuracy guaranteed temperature and humidity	23℃±5℃, below 75%rh
Power Supply	DC 3.7 Lithium battery
Resistance resolution	0.01Ω
Current resolution	0.001mA
Voltage resolution	0.01V
Clamp Size	68mm
Display	2.4 inch color LCD screen
LCD Size	46mm×29mm
Meter Dimension	273mm×106mm×53mm
measure time	1 time/sec
USB	With USB interface,uploaded the data to the computer, saved and printed
Communication line	USB communication line 1
Data storage	Maximum 500 groups of data, display “FULL” symbol to indicate that the storage is full
Overflow display	“OL” symbol indication when over-range overflow
Alarm function	When the measured value exceeds the alarm set value, an alarm will be issued
battery voltage	Real-time display of battery power, reminding to charge in time when battery voltage is low
Automatic shut-down	Turn off automatically after 15 minutes
Power consumption	750mA MAX
Quality	Meter: 975g (including battery)
Working temperature and humidity	-10℃～50℃; Below 80%rh
Storage Temperature and Humidity	-10℃～60℃; below 70%rh
Insulation Resistance	20Ω or more (500V between circuit and outside)
Pressure Resistance	AC 3700V/rms(between circuit and outside)
External magnetic field	＜40A/m
External electric field	＜1V/m
Suitable for Safety Regulations	IEC61010-1(CAT Ⅲ 300V、CAT IV 600V、Pollution Degree 2); IEC61010-031；IEC61557-1(Ground resistance)