Hanna Instruments HI 310N User manual

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Instruction Manual
HI 300N - HI 310N
HI 301N - HI 311N
HI 302N - HI 312N
HI 303N - HI 304N
HI 322N - HI 324N
Magnetic Stirrers
w w w . h a n n a i n s t . c o m
1

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Dear Customer,
Thank you for choosing a Hanna product.
Please read this instruction manual carefully before
using the meter. If you need additional technical infor-
mation, do not hesitate to e-mail us at
[e-mail] .
These meters are in compliance with directives.
WARRANTY
AllHannaInstruments products are warranted for two years
againstdefectsin workmanship and materials when used fortheir
intendedpurposeandmaintainedaccordingtotheinstructions.
Damages due to accidents,misuse,tamperingor lackof pre-
scribedmaintenancearenot covered.Thiswarrantyislimitedto
repairorreplacementfreeofcharge.Ifserviceisrequired,contact
thedealerfrom whom youpurchasedtheinstrument.If under
warranty, report themodel number, dateof purchase, serial
number and thenatureofthefailure.Iftherepairisnot covered by
the warranty, you will be notified of the charge for repair or
replacement.If theinstrumentistobereturnedto Hanna Instru-
ments,obtainaReturnGoodsAuthorization from the Customer
Service Department first and then send itwith shipment cost prepaid.
When shippinganyinstrument, make sureitisproperly packaged
for complete protection.
TABLE OF CONTENTS
Preliminary Examination................................... 3
General Description ......................................... 3
Application Guide .............................................. 5
Electrical Connections...................................... 6
Accessories ....................................................... 6
Functional Description & Specifications.......... 7
HI 300N & HI 310N........................................ 8
HI 301N & HI 311N ...................................... 10
HI 302N & HI312N ....................................... 12
HI 303N......................................................... 14
HI 304N......................................................... 16
HI 322N & HI 324N...................................... 18
Operational Guide for
HI 300N & HI 310N...................................... 20
HI 301N, HI 303N & HI 311N ...................... 22
HI 302N, HI 304N & HI 312N ...................... 24
HI 322N &HI 324N......................................... 26
2
PRELIMINARY EXAMINATION
Remove the instrument from the packing ma-
terial and examine it to make sure that no
damage has occurred during shipping. If there
is any damage, notify your Dealer.
Each stirrer is supplied complete with amag-
netic stir bar.
Note: Save all packing material until you are
sure that the instrument functions cor-
rectly. All defective items must be re-
turned in the original packing with the
supplied accessories.
GENERAL DESCRIPTION
The Hanna series of magnetic stirrers are
designed with simplicity of use for stirring
and mixing solutions in awide range of labo-
ratory applications. Several models are avail-
able in an extensive range covering:
• general purpose stirrers
• dual-speed range
• auto-reverse cycle stirring
• rpm indication
• timer control
All models employ a motorized magnet to
rotate astirring bar to create aforced vortex
rotational flow in the solution with aconstant
angular speed which is adjustable with an
external speed knob.
Unlike conventional stirrers, all Hanna stirrers
use the concept of pulse-driven drive to give
the full power required to effectively stir the
fluid regardless of the speed.
This eliminates the need to start the motor at
high speed and the user is now able to
control the speed precisely.
3

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Each stirrer is equipped with an opto-sensor
for speed monitoring, and a speed limiter
circuit that preventshazardousoperation when
the load is suddenly removed.
The power required to effectively stir afluid is
affected by the torque load on the stirrer
which is dependent on the capacity, type and
viscosity of the fluid. The speed of the stirrer
decreases as the torque load increases and
viceversa, unlessthe power delivered changes
accordingly.
For Newtonian fluids like water, the viscosity
remains constant during stirring. General pur-
pose, normal stirrers are ideal for this kind of
fluids.
For some fluids like oil and clay, the viscos-
ity changes during the stirring process, mak-
ing it necessary to adjust the power to main-
tain aconstant speed during the stirring.
Hanna Auto-Speed stirrers (HI 31X series)
are designed with automatic feedback control
to maintain constant speed when the torque
load changes and are therefore ideal for stir-
ring non-Newtonian fluids where the viscosity
changes during stirring.
They are also ideal for mixing applications
where one solution is added to another which
changes the capacity and thereby the torque
load on the stirrer.
The Auto-Speed stirrers maintain aconstant
stirring speed during the mixing up to the full
capacity of 5 liters. They can also be used
with Newtonian fluids up to a capacity of
5liters.
Hanna Instruments reserves the right to
modify the design, construction and appear-
ance of its products without advance notice.
4
APPLICATION GUIDE
5
APPLICATION
MODEL
Newtonian fluids
up to 2.5 liters
HI 300N
HI 301N
HI 302N
HI 304N
Non-Newtonianfluids
up to 5liters whose
viscosity changes
during stirring or
Newtonian fluids up
to 5liters or mixing
operation whereload
changes during stirring
HI 310N
HI 311N
HI 312N
Repetitive stirring in
Newtonian fluids up
to 2.5 liters
HI 303N
Repetitive stirring in
multiple samples with
the same stirring speed
HI 304N
Routine stirring
application with a
predeterminedstirringtime
HI 322N
Repetitive stirring in
multiple samples with
the same stirring speed
and predetermined
stirring time
HI 324N

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ELECTRICAL CONNECTIONS
FUNCTIONAL DESCRIPTION
AND SPECIFICATIONS
See the following pages for specifications of
each model.
The capacity is referred to stirring water with
aviscosity of 0.001 N·s/m2at 25ºC.
Specifications for all models
Speed ON/OFF and continuously
123
Control variable with potentiometer
1. ON/OFFswitchforpowersupply
2. Fuseholderfor 400mA/250 Vfuse
3. ACpowercord.
Unplug the stirrers from the power sup-
ply before replacing the fuse.
ACCESSORIES
HI 731320 Magnetic stir bar (10 pcs)
6
knob
Drive Direct drive D.C. Motor with
magnet
Power 4W
Consumption
Torque 85 g·cm
Delivered
Power 115 or 230 Vac, 50/60 Hz
Supply depending on models
Fuse 400 mA/250 V; 20x5 mm
Stirring Bar Teflon® coated,
L50 xdia 7mm
Recommendations for Users
Before using these products, make sure that they are entirely suitable for the
environment in which they are used.
Operation of these instruments in residential area could cause unacceptable
interferences to radio and TV equipments, requiring the operator to take all necessary
steps to correct interferences.
Any variation introduced by the user to the supplied equipment may degrade the
instruments' EMC performance.
Unplug the stirrers from the power supply before replacing the fuse.
To avoid damages or burns, do not place these stirrers in microwave ovens.
7

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HI 300N & HI 310N
GENERAL PURPOSE STIRRERS
These general purpose stirrers are suitable
for daily stirring applications in the labora-
tory.
HI 300N normal stirrer and HI 310N autospeed
stirrer are covered with acorrosion resistant
stainless steel top.
12
MAGNETIC STIRRER
HI 300N
POWER ON
OFF MAX
SPEED
12
HI 310 AUTOSPEED
MAGNETIC STIRRER
POWER ON
OFF MAX
SPEED
1. Power indicator (LED lights up when the
stirrer is powered)
2. ON/OFF/SPEED knob ,to turn the stirrer
ON and OFF, and set the stirring speed
(continuously variable up tothemaximum)
89
HI 300N
HI 310N
Maximum
Stirring
Capacity
2.5Liters
(0.66gallons)
5Liters
(1.3gallons)
SpeedRange
Min
Max
100rpm
800 to1000rpm
Auto-Speed
notapplicable
standard
PowerSupply
HI 300N-1
HI 300N-2
HI 310N-1
HI 310N-2
110/115 Vac, 50/60Hz
220/240Vac, 50/60Hz
110/115 Vac, 50/60Hz
220/240Vac, 50/60Hz
Installation
Category
II
Cover
Material
AISI 316 stainless steel
Environment
0to 50ºC (32 to122ºF);
RH max 95%
Dimensions
180 x180 x70 mm
(7.1 x7.1x2.8")
Weight
1.4 kg (3.1 lb.)

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HI 301N & HI 311N
TWO-SPEED STIRRERS
HI 301N normal stirrerand HI 311N autospeed
stirrer, are ideal for long duration stirring which
require slow speed and accurate speed con-
trol (for example in electrolysis applications).
The selectable HIGH/LOW range allows to
set the speed precisely.
123
MAGNETIC STIRRER
HI 301N HIGH
POWER ON
OFF MAX
SPEED LOW
HI 311 AUTOSPEED
MAGNETIC STIRRER
123
HIGH
POWER ON
OFF MAX
SPEED LOW
1.
Power indicator (LED lights up when the
stirrer is powered)
2. ON/OFF/SPEED knob ,to turn the stirrer
ON and OFF, and set the stirring speed
(continuously variable up tothemaximum)
3. HIGH/LOW switch (for selecting low or
high speed range)
10
11
HI 301N
HI 311N
Maximum
Stirring
Capacity
2.5Liters
(0.66gallons)
5Liters
(1.3gallons)
SpeedRange
Low
High
100 to500 rpm
100to800/1000rpm
Auto-Speed
notapplicable
standard
PowerSupply
HI 301N-1
HI 301N-2
HI 311N-1
HI 311N-2
110/115 Vac, 50/60Hz
220/240Vac, 50/60Hz
110/115 Vac, 50/60Hz
220/240Vac, 50/60Hz
Installation
Category
II
Cover
Material
AISI 316 stainless steel
Environment
0to 50ºC (32 to122ºF);
RHmax 95% RH
Dimensions
180 x180 x70 mm
(7.1 x7.1x2.8")
Weight
1.4 kg (3.1 lb.)

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HI 302N & HI 312N
AUTO-REVERSE STIRRERS
HI 302N normal stirrerand HI 312N autospeed
stirrer allow to stir the fluid in both directions
and are ideal for powder mixing applications
to ensure ahomogeneous final product and
complete dissolution of hard-to-wet powders.
The reverse stirring period is adjustable from
30 seconds to 3 minutes. When set to
1minute, the fluid will rotate in one direction
for minute and then reverse its rotation for
another minute at the desired speed in a
repeated cycle until the stirrer is switched off.
1
MAGNETIC STIRRER
HI 302N
23
ON
OFF MAX
0.5’
OFF
3’
POWER SPEED REVERSE
PERIOD
1
HI 312 AUTOSPEED
MAGNETIC STIRRER
23
ON
OFF MAX
0.5’
OFF
3’
POWER SPEED REVERSE
PERIOD
1. Power indicator (LED lights up when the
stirrer is powered)
2. ON/OFF/SPEED knob ,to turn the stirrer
ON and OFF, and set the stirring speed
(continuously variable up tothemaximum)
3. REVERSE PERIOD knob with the ON/
OFF and continuously variable selection
of inversion cycle time in minutes, from
0.5 to 3minutes 12
13
HI 302N
HI 312N
Maximum
Stirring
Capacity
2.5Liters
(0.66gallons)
5Liters
(1.3gallons)
SpeedRange
Min.
Max.
100rpm
800 to1000 rpm
Reverse
Interval
from 30seconds
to 3minutes
Auto-Speed
notapplicable
standard
PowerSupply
HI 302N-1
HI 302N-2
HI 312N-1
HI 312N-2
110/115 Vac, 50/60Hz
220/240Vac, 50/60Hz
110/115 Vac, 50/60Hz
220/240Vac, 50/60Hz
Installation
Category
II
Cover
Material
AISI 316 stainless steel
Environment
0to 50ºC (32 to122ºF)
95% RHmax.
Dimensions
180 x180 x70 mm
(7.1 x7.1x2.8")
Weight
1.4 kg (3.1 lb.)

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23
HI 303N
TWO-SPEED STIRRER WITH TACHO-
METER
HI 303N stirrer incorporates an LCD tachom-
eter.
This model allows precise stirring repeatabil-
ity by using two separate ranges. In each
range, the speed can be fine tuned for exact-
ing accuracy.
14
MAGNETIC STIRRER
SPEED IN RPM HI 303N HIGH
POWER ON
OFF MAX
SPEED LOW
1.
rpm LCD displays the rpm speed
2. Power indicator (LED lights up when the
stirrer is powered)
3. ON/OFF/SPEED knob ,to turn the stirrer
ON and OFF, and set the stirring speed
(continuously variable up tothemaximum)
4. HIGH/LOW switch (for selectinglowspeed
range or high speed range)
14 15
HI 303N
Maximum
Stirring
Capacity
2.5Liters
(0.66gallons)
SpeedRange
Low
High
100 to500 rpm
100 to1000rpm
Tachometer
4-digitLCD
PowerSupply
HI 303N-1
HI 303N-2
110/115 Vac, 50/60Hz
220/240Vac, 50/60Hz
Installation
Category
II
Cover
Material
AISI 316 Stainless Steel
Environment
0to 50ºC (32 to122ºF);
RH max 95%
Dimensions
180 x180 x70 mm
(7.1 x7.1x2.8")
Weight
1.4 kg (3.1 lb.)

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HI 304N
AUTO-REVERSE STIRRER WITH TACHO-
METER
HI 304N is aheavy-duty stirrer with abuilt-in
tachometer. An advanced circuit allows to re-
versethe directionof thestirat aninterval that
can be adjusted from 30 seconds up to 3
minutes.
1234
MAGNETIC STIRRER
HI 304N
SPEED IN RPM
ON
OFF MAX
0.5’
OFF
3’
POWER SPEED REVERSE
PERIOD
1. rpm LCD displays the rpm speed
2. Power indicator (LED lights up when the
stirrer is powered)
3. ON/OFF/SPEED knob ,to turn the stirrer
ON and OFF, and set the stirring speed
(continuously variable up tothemaximum)
4. REVERSE PERIOD knob with theON/OFF
and continuously variable selection of inver-
sion cycle time in minutes, from 0.5 to 3
minutes
16 17
HI 304N
Maximum
Stirring
Capacity
2.5Liters
(0.66gallons)
SpeedRange
Min.
Max.
100rpm
800 to1000 rpm
Tachometer
4-digitLCD
PowerSupply
HI 304N-1
HI 304N-2
110/115 Vac, 50/60Hz
220/240Vac, 50/60Hz
Installation
category
II
Cover
Material
AISI 316 stainless steel
Environment
0to 50ºC (32 to122ºF);
RHmax 95% RH
Dimensions
180 x180 x70 mm
(7.1 x7.1x2.8")
Weight
1.4 kg (3.1 lb.)

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3
234
HI 322N & HI 324N
TIMER-CONTROLLED STIRRERS
HI 322N and HI 324N are autospeed stirrers
equipped with timer control to start and auto-
matically stop the stirring process after an
user-selectable period (from 5 minutes to
2hours). They are the ideal stirrers for routine
applications where the required stirring timeis
known, and fornon-Newtonianfluidswhosevis-
cositieschangeduringstirringorNewtonianfluids
up to 5liters capacity.
1
HI 322 TIMER CONTROL
24
MAGNETIC STIRRER 1hr START
0.5hr 1.5hr
5min ON
2hr MAX
OFF OFF
POWER TIME SPEED RESET
15
HI 324 TIMER CONTROL
MAGNETIC STIRRER
1hr 1hr START
0.5hr 1.5hr
rpm
5min ON
2hr MAX
OFF OFF
POWER TIME SPEED RESET
1.
rpm LCD displays the rpm speed
2. Power indicator (LED lights up when the
stirrer is powered)
3. TIME knob for setting the stirring time
from 5minutes to 2hours
4. SPEED knob , to turn the stirrer ON and
OFF, and set the stirring speed (continu-
ously variable up to the maximum)
5. START/RESET switch for starting and re-
setting the time control
18
19
HI 322N
HI 324N
Maximum
Stirring
Capacity
5Liters
(1.3gallons)
5Liters
(1.3gallons)
SpeedRange
Min.
Max.
100rpm
800 to1000 rpm
Timer Range
user selectablefrom 5
minutesto 2hours
Tachometer
notapplicable
4-digit
LCD
Auto-Speed
standard
standard
Powersupply
HI 322N-1
HI 322N-2
HI 324N-1
HI 324N-2
110/115 Vac, 50/60Hz
220/240Vac, 50/60Hz
110/115 Vac, 50/60Hz
220/240Vac, 50/60Hz
Installation
Category
II
Cover
Material
AISI 316 stainless steel
Environment
0to 50ºC (32 to122ºF);
RH max 95%
Dimensions
180 x180 x70 mm
(7.1 x7.1x2.8")
Weight
1.4 kg (3.1 lb.)

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OPERATIONAL GUIDE FOR
HI 300N and HI 310N
• Make sure that the
SPEED knob (on
the front panel) and
the ON/OFF switch
MAGNETICSTIRRER
HI190M
POWER
ON
OFF MAX
SPEED
• Allow sufficient time
for the mixing opera-
tionto attain uniform
rotational flow.
(on the rear panel)
are in OFF position. •
When stirring is
complete, turn the
MAGNETICSTIRRER
HI190M
POWER
ON
OFF MAX
SPEED
• Place a beaker or
glass container at
the center of the top
of the stirrer, and
place the stirring bar
in the beaker.
MAGNETICSTIRRER
HI190M
POWER
ON
SPEED knob to the
OFF position.
• If no further stirring
is required, turn the
stirrer off.
OFF MAX
SPEED
• Pour the liquids to
be mixed into the
beaker.
Do not fill up to the
brim and leave suffi-
cient space to pre-
vent spillage during
stirring.
MAGNETICSTIRRER
HI190M
POWER ON
OFF MAX
SPEED
• Connect the power
cord to the mains
and turn the stirrer
on.
• Adjust the SPEED
knob slowly until the
required stirring
speed is achieved.
MAGNETICSTIRRER
HI190M
POWER ON
OFF MAX
SPEED
20 21

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HI303N
HI303N
HI303N
POWER
HI303N
POWER
HI303N
ON
HI303N
OPERATIONAL GUIDE FOR
HI 301N, HI 303N and HI 311N
• Select the low or high
range with the HIGH/
LOW switch as re-
quired.
MAGNETIC STIRRER
SPEEDINRPM HIGH
• Make sure that the
SPEED knob and the
MAGNETICSTIRRER
SPEEDINRPM
ON
POWER OFF
MAX
SPEED
HIGH
LOW
POWER
ON
OFF MA X
SPEED LOW
ON/OFF switcharein
the OFF position.
• Adjust the SPEED
knob slowly until the re-
quired stirring speed is
achieved.
• Allow sufficient time for MAGNETICSTIRRER
SPEEDINRPM HIGH
• Place a beaker or the mixing operation to POWER
ON
OFF MA X
SPEED LOW
glass container at the
center of the top of
the stirrer and place
the stirring bar in the
beaker.
MAGNETICSTIRRER
SPEEDINRPM
ON
OFF MAX
SPEED
HIGH
LOW
attain uniform rotational
flow.
The stirring speed is indicated in the rpm
LCD ( HI 303N only).
• Pour the liquids to be
mixed into the bea-
ker. Do not fill up to
the brim and leave
sufficient space to
prevent spillage dur-
ing stirring.
MAG NETI CSTIRRER
SPEEDINR PM
POWE R OFF
SPEED
MAX
HIGH
LOW
• When stirring is com-
plete, turn the SPEED
knob to the OFF posi-
tion.
• If no further stirring is
required, turn the stir-
rer off.
MAGNETIC STIRRER
SPEEDINRPM
ON
OFF MA X
SPEED
HIGH
LOW
• Connect the power
cordto themainsand
turnthe stirrer on with
the ON/OFF switch.
22 23

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0.5’
SPEED
REVERSEPERIOD
0.5’
3’
PERIOD
0.5’
3’
SPEED
REVERSEPERIOD
PERIOD
PERIOD
PERIOD
OPERATIONAL GUIDE FOR
HI 302N, H I 304N and HI 312N
• Set the REVERSE PE-
RIOD knob to the de-
siredreversestirringpe-
riod from 30 seconds
to 3minutes. HI314
AUTOSPEED
MAGNETIC STIRRER
• Make sure that the
SPEED knob and
the ON/OFF switch
HI314 AUTOSPEED
MAGNETICSTIRRER
rpm ON
OFF MAXOFF3’
POWER
E.g. if set to one
minute, the fluid will ro-
tate in one direction for
rpm
POWER
ON
O FF MA X O FF
SPEED REVERSE
are in the OFF posi-
tion.
one minuteand thenre-
verse its rotation for an-
other minute in a re-
peated cycle until the
stirrer is turned off.
•
Place a beaker or
glass container at
the center of the top
of the stirrer and
place the stirring bar
HI314 AUT O SPEED
MAG N ETIC STIRRER
rpm ON
0.5’
• Adjust the SPEED
knob slowly until the re-
quired stirring speed is
achieved.
HI314 AUTOSPEED
MAGNETIC STIRRER
rpm
ON
O FF MA X O FF
POWER
in the beaker.
• Pour the liquids to
be mixed into the
beaker. Do not fill up
POWER OFF
MAX
3’
OFF
SPEED REVERSE
• Allowsufficienttimeforthe mixing operation
to attain uniform rotational flow.
The stirring speed is indicated in the rpm
LCD for HI 304N .
to the brim and leave
sufficient space to
prevent spillage dur-
ing stirring.
HI314AUTOSPEED
MAGNETICSTIRRER
rpm ON
OFF MAX
0.5’
OFF3’
• When stirring is com-
plete, turn the SPEED
knob to the OFF posi-
tion.
HI314 AUTOSPEED
MAGNETIC STIRRER
rpm
POWER SPEED
REVERSE ON
OFF MAX
0.5’
OFF3’
POWER SPEED
REVERSE
• Connect the power
cordtothemainsand
turnthe stirreron with
the ON/OFF switch.
24
• If no further stirring is
required, turn the stirrer
off.
25

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OPERATIONAL GUIDE FOR
HI 322N and HI 324N
• Set the TIME knob to
the desired stirring time
from 5 minutes to 2
hours. Then set the
• Make sure that the HI324TIMERCONTROL
MAGNETICSTIRRER
1hr 1hr START START/RESET
switch
SPEED knob and
the ON/OFF switch
rpm
POWER
0.5hr
5min
OFF
TIME
1.5hr
ON
2hr OFF
SPEED
MAX
RESET to
START. The stirrer
will only start stirring
HI324TIMERCONTROL
MAGN ETICSTIRRER
1hr 0.5hr
rpm 5min
OFF
POWER
1hr
TIME
1.5hr
ON
2hr OFF
SPEED
MAX
START
RESET
are in the OFF po-
sition and the
START/RESET
switch is in RESET
position.
• Place a beaker or
glass container at
when the START switch
is in the START posi-
tion and will end when
the selected stirring
time has passed.
• Adjust the SPEED
knob slowly until the re-
the center of thetop quired stirring speed is HI324T IMERCONTROL
MAGNETIC STIRRER
1hr 1hr START
of the stirrer and achieved. rpm
POWER
0.5hr
5min
OFF
TIME
1.5hr
ON
2hr
O FF
SPEED
MA X
RESET
place the stirringbar
in the beaker. HI324TIMERCONTROL
MAGNETICSTIRRER
1hr 0.5hr
rpm 1hr 1.5hr START •
Allow sufficient time for the mixing opera-
POWER 5min
OFF
TIME 2hr
ON
OFF
SPEED
MAX
RESET tion to attain uniform rotational flow.
• Pour the liquids to
be mixed into the
beaker. Do not fill
up to the brim and
leave sufficient
space to prevent
The stirring speed is indicated in the rpm
LCD for HI 324N .
• When stirring is com-
plete, turn the SPEED
knob to the OFF posi-
spillage during stir- tion. HI324TIM ERCONTROL
MAGN ETICSTIRRER
1hr 0.5hr
rpm 5min
1hr 1.5hr
ON MAX START
ring. POWER OFF
TIME 2hr OFF
SPEED RESET
HI324TIMERCONTROL
MAGNETICSTIRRER
1 hr
1 hr START
0.5hr 1.5hr
rpm
POWER
5 min
OFF
TIME
2 hr
ON
OFF
SPEED MA X
RESET •
If no further stirring is
• Connect the power
cord to the mains
and turn the stirrer
on withthe ON/OFF
switch.
26
required, turn the stir-
rer off.

Agitadores magnéticos Capacidad estándar HI-304N 2 HANNA manual ingles www.viaindustrial.com
Agitadores magnéticos Capacidad estándar HI-304N-2 HANNA manual ingles www.viaindustrial.com
MAN3 00
06/05