Hi 302N, Hi 304N & Hi 312N - Hanna Instruments HI 300N Instruction Manual

OPERATIONAL GUIDE FOR
HI 302N, H I 304N and HI 312N
• Make sure that the
SPEED knob and
the ON/OFF switch
are in the OFF posi-
tion.
• Place a beaker or
glass container at
the center of the top
of the stirrer and
place the stirring bar
in the beaker.
• Pour the liquids to
be mixed into the
beaker. Do not fill up
to the brim and leave
sufficient space to
prevent spillage dur-
ing stirring.
• Connect the power
cord to the mains and
turn the stirrer on with
the ON/OFF switch.
HI 314 AUTOSPEED
MAGNETIC STIRRER
rpm
ON
0.5'
OFF MAX OFF 3'
POWER
SPEED REVERSE
PERIOD
HI 314 AUTOSPEED
MAGNETIC STIRRER
rpm
ON
0.5'
OFF MAX OFF 3'
POWER
SPEED REVERSE
PERIOD
HI 314 AUTOSPEED
MAGNETIC STIRRER
rpm
ON 0.5'
OFF MAX OFF 3'
POWER
SPEED REVERSE
PERIOD
24
• Set the REVERSE PE-
RIOD knob to the de-
sired reverse stirring pe-
riod from 30 seconds
to 3 minutes.
E.g. if set to one
minute, the fluid will ro-
tate in one direction for
one minute and then re-
verse its rotation for an-
other minute in a re-
peated cycle until the
stirrer is turned off.
• Adjust the SPEED
knob slowly until the re-
quired stirring speed is
achieved.
• Allow sufficient time for the mixing operation
to attain uniform rotational flow.
The stirring speed is indicated in the rpm
LCD for HI 304N.
• When stirring is com-
plete, turn the SPEED
knob to the OFF posi-
tion.
• If no further stirring is
required, turn the stirrer
off.
25
HI 314 AUTOSPEED
MAGNETIC STIRRER
rpm
ON
0.5'
OFF MAX OFF 3'
POWER
SPEED REVERSE
PERIOD
HI 314 AUTOSPEED
MAGNETIC STIRRER
rpm
ON
0.5'
OFF MAX OFF 3'
POWER
SPEED REVERSE
PERIOD
HI 314 AUTOSPEED
MAGNETIC STIRRER
rpm
ON
0.5'
OFF MAX OFF 3'
POWER
SPEED REVERSE
PERIOD