18
4
Operation
4.1
Switching On/Off
The flowmeter is switched on by holding the
<ON>
key for more than 2 sec-
onds continuously. Equally it can be switched off by pressing the
<OFF>
key
for more than 2 seconds.
When switching on, the flowmeter will perform a hardware and software
check, including the data logger space. Progress will be indicated by a series
of dashes above and a black bar below.
4.2
Battery charging
The internal batteries can be recharged with the external battery charger
supplied.
Important: Ensure that only Nickel Metal Hydride (NiMH) AA size re-
chargeable batteries are installed – attempting to recharge other bat-
tery types is dangerous and may cause damage.
Connect the battery charger to the charging socket of the flowmeter and to
the mains supply 100 ... 240 VAC, 50/60 Hz. The battery charger mains plug
is supplied for specific countries as shown in the order code.
The red mark on the plug aligns with the mark on the socket. Remove plug
by sliding the outer casing away from the socket to release the latch.
During the charging process, the battery icon will blink. For a fully charged
battery all segments of the battery icon will be filled.
Battery charge level is also shown in the diagnostic displays.
!
Illustration 7: Battery charging
