wtw 330i - Page 12

Commissioning pH 330i/340i
12
Connecting the plug-in
power supply
(340i)
You can either operate the measuring instrument with batteries or with
the plug-in power supply. The plug-in power supply supplies the pH
meter 340i with low voltage (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
chapter 7 T
ECHNICAL DATA).
Warning
Use original plug-in power supplies only (see
chapter 7 T
ECHNICAL DATA).
Note
You can also measure without the plug-in power supply.
1 Plug the jack (1) into the socket (2) of the measuring instru-
ment.
2 Connect the original WTW plug-in power supply (3) to an easily
accessible mains socket.
R
e
f
2
1
3