pH 330i/340i
Mains power (pH 340i only)
5
Mains power (pH 340i only)
You can either operate the measuring instrument with batteries or with the
plug-in power supply. The plug-in power supply provides the measuring in-
strument with low voltage (7.5 V ... 12 V DC). This saves the batteries.
Warning
The line voltage at the operating site must lie within the input voltage range
of the original plug-in power supply (see T
ECHNICAL
DATA
).
Warning
Only use original plug-in power supplies (see T
ECHNICAL
DATA
).
Switching on the measuring instrument
Ref
2
1
3
l
Plug the jack (1) into the socket (2) of the measuring instrument.
l
Connect the original WTW plug-in power supply (3) to an easily accessi-
ble mains socket.
l
Press the <
> key.
Display test appears briefly on the display.
After this, the measuring instrument automatically switches to the mea-
suring mode. The display shows the relevant measured value.
