9
10
Operating instruction EC IIInstallation
4 − 12
6.107.98.5.01.44
4.2.8 External 12V battery operation (option)
The scale can be operated with an external rechargeable battery. To do this, the external
battery is connected to the power supply input via a connection cable.
The power source (external battery) must meet the requirements of the power limiter
complying with UL 60950 and IEC 60950−1: 2001, section 2.5.
Connection example
Fig.: Connection cable
9
Connection cable
−
.
The connection ( Limited power source)
must be protected with a 4A fuse.
Fig.: Scale connection
10
Connection:
Cable connector of direct plug−in transformer unit
or
Connection cable of external battery
External battery operation
− Disconnect the cable together with the direct plug−in transformer unit on the scale
underside
10
.
− Link the connecting cable to a 12 V socket.
− Link the connecting cable to the scale underside
10
.
Mains operation
− Disconnect the connecting cable on the scale underside
10
.
− Connect the cable together with the direct plug−in transformer unit to the scale
underside
10
.
− Connect the direct plug−in transformer unit to the socket.
4