The KT 64 incorporates Anti Trip Technology (ATT) which electronically
bypasses RCDs when performing loop impedance tests. This saves time and
money by not having to take the RCD out of the circuit during testing and is a
safer procedure to follow.
With the ATT function enabled , a test of 15mA or less is applied between
line & earth. It enables loop impedance measurements without tripping RCDs
rated at 30mA and above.
Please read this instruction manual carefully before using this equipment.