Quick Test microPAT, User Manual

Page: 9 / 16

7
Identifying Class 1 and Class 2
Testing a Class 1 appliance
1. Plug the test lead into the tester
2. Plug your class 1 appliance into the socket on top of the tester
3. Connect the crocodile clip or probe to some exposed metal on the
appliance
4. Press the Class 1 button
If the appliance is not switched on, the ‘ Switched on? ’ indicator will flash
to prompt you to do so. If the appliance is then switched on the tester will
proceed with the test. If it is not possible to switch the appliance on, press
the Class 1 button again to proceed with the test. The Class 1 test button
will flash amber while the test is underway.
When the test is finished, either the green PASS indicator will light up, or
the appropriate red FAIL indicators will light up. The Class 1 button will
also be green or red.
If the Class 1 appliance has no accessible metal part (including fixing
screws), then test as Class 2.
Class 1 appliances use an earth connection as a means
of protection.
Class 2 appliances do not use an earth connection. They
are frequently referred to as ‘double insulated’.
Class 2 appliances display the ‘double box’ symbol.
Class 2 Symbol