ADInstruments PowerLab 30 Series Owner's Manual page 19

earth connection (equipotential connection point) in situations that require
this type of connection, or if there is no ground provided via the power cord.
Safety standards in laboratories and similar environments may require
additional grounding protection when connecting equipment to human
subjects, and their relevant standards or guidelines should be observed.
Power Connections
The power switch on the back right of the PowerLab turns the PowerLab on
and off; the 3-pin IEC power socket is used to connect your PowerLab to a 3-
pin earthed (grounded) power cable. The power supply is universal, and can
use all common international mains power supplies (auto-switching, 90–250
V AC, 50/60 Hz).
The /30 PowerLabs are not fitted with replaceable fuses. The power supply is
short-circuit protected, and should not damage the internal fuses unless a
major fault develops. If that happens, the unit must be returned for service by
qualified service personnel. Do not attempt to replace internal power supply
fuses yourself.
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Chapter 1 Overview