Functions & Features; Overview Of The Controls/Connections; Power Connection; Power Zone - Digitimer DS4 Operator's Manual

DS4 Bi-phasic Stimulus Isolator
Functions & Features

Overview of the Controls/Connections

Power Connection

The DS4 control circuitry is powered by the supplied ±15V DC power supply adaptor which must be connected
to the DS4 via the socket illustrated in Figure 2. The supplied mains lead should then be used to connect the
DC power supply adaptor to a suitable mains supply (110-220V AC). Once all connections have been made,
the mains socket and the DS4 can be switched on.
DC Power Supply
Input Socket
Figure 2 Positioning of the DC power supply socket on the DS4.
Note that the DS4 is NOT a re-chargeable unit and the DC power supply must remain connected
and switched on while the DS4 is in use.

Power Zone

The DS4 has a POWER switch in the middle of the front panel which switches the unit on or off (by
disconnecting the DC power supply). When the power is switched on (toggle switch up), the green LED is lit.
It is recommended that the DS4 is switched off when not in use, as significant battery drain will occur if a
voltage continues to be applied at the INPUT, when the DS4 is switched on.
Digitimer Ltd.
Figure 3 The POWER zone of the DS4 front panel.
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DS4 Operator's Manual Issue 1.1
Copyright 2019