UT522 Digital Earth Tester
SKU:UT522
Manufacturer:Uni-T
New
Image is for illustrative purposes only
The UNI-T UT522 is a digital earth resistance meter designed for high-precision and reliable measurements. It measures both earth resistance and earth voltage.
Key Features
- Measures earth resistance and earth voltage.
- Supports both accurate three-wire and simple two-wire measurement methods.
- Features a backlit LCD for clear readings.
- Includes data hold and storage for up to 20 sets of measurements.
- Equipped with automatic power-off to conserve battery.
- Provides indications for overload and poor contact.
- Offers a battery check function.
- Lightweight design for convenient field use.
Applications
The UT522 is ideal for testing grounding devices in power installations, electrical appliances, lightning protection systems, and other electrical systems.
Key Features
- Measures earth resistance and earth voltage.
- Supports both accurate three-wire and simple two-wire measurement methods.
- Features a backlit LCD for clear readings.
- Includes data hold and storage for up to 20 sets of measurements.
- Equipped with automatic power-off to conserve battery.
- Provides indications for overload and poor contact.
- Offers a battery check function.
- Lightweight design for convenient field use.
Applications
The UT522 is ideal for testing grounding devices in power installations, electrical appliances, lightning protection systems, and other electrical systems.
2-Wire Measurement: Yes
3-Wire Measurement: Yes
AC Earth Voltage Measurement Range: 0～400V (±1%+6)
Altitude: 2000 m
Auto Power Off: About 10 minutes
Bad Contact Indication: ...Ω
Data Hold: Yes
Data Storage: 20 groups
Display Count: 4000
Double Insulation: Yes
Earth Resistance Measurement Range: 0～40Ω (±2%+20), 0～400Ω (±2%+3), 0～4000Ω (±2%+3)
Frequency: 50Hz/60Hz
Full Icon Display: Yes
Insulation Resistance: >20 MΩ between measure circuits and the casing
LCD Backlight: Yes
LCD Size: 70.6 mm x 34 mm
Low Battery Indication: Yes
Manual Range: Yes
Operating Relative Humidity: 80% RH (non-condensing)
Operating Temperature: 5 ~ 40℃
Overload Indication: OL
Overload Protection (Earth Resistance): 200 V AC (10 seconds)
Overload Protection (Earth Voltage): 600 V AC (30 seconds)
Power: 6 batteries 1.5V (AA)
Product Net Weight: 560 g
Product Size: 160 mm x 100 mm x 70.5 mm
Storage Relative Humidity: 75% RH (non-condensing)
Storage Temperature: -20 ~ 60℃
Test Current (Earth Resistance): around 3.2 mA at 40Ω range
Test Signal Frequency (Earth Resistance): around 820 Hz
3-Wire Measurement: Yes
AC Earth Voltage Measurement Range: 0～400V (±1%+6)
Altitude: 2000 m
Auto Power Off: About 10 minutes
Bad Contact Indication: ...Ω
Data Hold: Yes
Data Storage: 20 groups
Display Count: 4000
Double Insulation: Yes
Earth Resistance Measurement Range: 0～40Ω (±2%+20), 0～400Ω (±2%+3), 0～4000Ω (±2%+3)
Frequency: 50Hz/60Hz
Full Icon Display: Yes
Insulation Resistance: >20 MΩ between measure circuits and the casing
LCD Backlight: Yes
LCD Size: 70.6 mm x 34 mm
Low Battery Indication: Yes
Manual Range: Yes
Operating Relative Humidity: 80% RH (non-condensing)
Operating Temperature: 5 ~ 40℃
Overload Indication: OL
Overload Protection (Earth Resistance): 200 V AC (10 seconds)
Overload Protection (Earth Voltage): 600 V AC (30 seconds)
Power: 6 batteries 1.5V (AA)
Product Net Weight: 560 g
Product Size: 160 mm x 100 mm x 70.5 mm
Storage Relative Humidity: 75% RH (non-condensing)
Storage Temperature: -20 ~ 60℃
Test Current (Earth Resistance): around 3.2 mA at 40Ω range
Test Signal Frequency (Earth Resistance): around 820 Hz
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