المرجع: Earth Resistance Tester
UT - 522 Earth Resistance Tester
Earth resistance : 4kΩ
AC earth voltage : 400V
Frequency : 50Hz/60Hz
Manual range : YES
Auto power off : YES
Low battery indication : YES
Data hold : YES
Data storage : 20
LCD backlight : YES
Full icon display : YES
Double insulation protection : YES
Poor contact display : YES
Over-range display : YES
2-wire testing : YES
3-wire testing : YES
Category ratings : CAT III 600V
Certificates : CE/UKCA
Earth resistance : 4kΩ
AC earth voltage : 400V
Frequency : 50Hz/60Hz
Manual range : YES
Auto power off : YES
Low battery indication : YES
Data hold : YES
Data storage : 20
LCD backlight : YES
Full icon display : YES
Double insulation protection : YES
Poor contact display : YES
Over-range display : YES
2-wire testing : YES
3-wire testing : YES
Category ratings : CAT III 600V
Certificates : CE/UKCA