ADInstruments PowerLab 2/20 Owner's Manual page 8

If you so wish, your PowerLab system can be periodically checked for
basic medical safety by using an appropriate medical safety testing
device. Tests such as earth leakage, earth bond, insulation resistance,
patient leakage and auxiliary currents and power cable integrity can
all be performed on the PowerLab system without having to remove
the covers. You should follow the instructions for the testing device if
performing such tests.
If the PowerLab system is found not to comply with such testing you
should contact your PowerLab dealer to arrange for the equipment to
be checked and serviced. You should not attempt to service the device
yourself.
viii PowerLab Owner's Guide