Mains Power (Ph 340I Only); Switching On The Measuring Instrument - wtw pH 330i Bedienungsanleitung

pH 330i/340i Mains power (pH 340i only)
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 TECHNICAL DATA).
Warning
Only use original plug-in power supplies (see TECHNICAL DATA).
Plug the jack (1) into the socket (2) of the measuring instrument.
Connect the original WTW plug-in power supply (3) to an easily accessi-
ble mains socket.
Switching on the measuring instrument
• 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.