Contor de rezistență la împământare

Earth resistance meter KEW 4105A

• The meter performs measurements in accordance with the PN-EN61557 standard
• The degree of protection of the housing is IP 54 in accordance with PN-EN60529
• Measurement of earth resistance using the 2- and 3-wire method
• The cables for measuring the earth resistance using the 2-wire method have replaceable tip or crocodile tips
• Signaling of exceeding the permissible value of auxiliary earth electrode resistance
• Measurement of earth potential and voltage drop at the measuring electrode
• The measurement current of only 2mA allows the measurement without triggering the residual current devices
• Battery status indicator

Special features and special functions

• Dustproof and waterproof housing
• Measurement of earth resistance without triggering protections at a measuring current of 2mA
• Signaling of exceeding the permissible resistance of auxiliary electrodes

MEASUREMENTS AND ACCURACY

Accuracy:

+ - (% of indicated value + number of least significant digits), unless otherwise specified, for temperature 23 ° C + - 5 ° and RH <75%