Hanna Instruments HI 3050N User Manual

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Instruction ManualInstruction Manual

Instruction Manual

Instruction ManualInstruction Manual

MagneticMagnetic

Magnetic

MagneticMagnetic

StirrersStirrers

Stirrers

StirrersStirrers

Dear Customer, Thank you for choosing a Hanna product.

Please read this instruction manual carefully before using the meter. This manual will provide you with the necessary information for a correct use of the instrument. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com. These instruments are in compliance with the

directives.

TABLE OF CONTENTSTABLE OF CONTENTS

TABLE OF CONTENTS

TABLE OF CONTENTSTABLE OF CONTENTS

Preliminary Examination ............................ 3

Specifications ........................................... 3

General Description ................................... 6

Mini and General Purpose Stirrers ............. 10

Dual-Speed Range Stirrers ...................... 11

Reversible Stirrers .................................. 13

Timer Control Stirrers .............................. 14

Stirrers with Incorporated pH Meter .......... 16

http://www.hannainst.com

These Instruments are in

Compliance with the CE Directives

Stirrers with pH Meter for Manual Titration . 18

Warranty ................................................. 20

CE Declaration of Conformity..................... 21

Optional Accessories ............................... 22

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PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION

PRELIMINARY EXAMINATION

PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION

Remove the instrument from the packing material and examine carefully to make sure that no damage has occurred during shipment. If noticeable damage is found, immediately notify the shipper and contact your Dealer's Service Department.

NOTE: Conserve all packing material until the instrument has been observed to function correctly because all defective items must be returned to the Dealer in their original packing.

SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONSSPECIFICATIONS

See Table 1 and Table 2 for specifications of each model. The capacity indicates in the Tables refer to stirring water with a viscosity of

0.001 N.s/m

All Models: Speed Control:

Drive:

Power Consumption:

Torque Delivered:

Power Supply:

Fuse:

Stirring Bar:

at 25ºC.

ON/OFF and continuously variable with potentiometer knob

Direct drive D.C. Motor with magnet

85 g. cm

100/115/240 VAC 50/60 Hz or DC 1216V depending on models

200 mA or 1A. 20 mm length x 5 mm diameter depending on models

Magnet enclosed in PTFE for HI 190M, HI 190MB and HI 200M,

25 mm length x 7 mm diameter for other models, 50 mm length x 7 mm diameter

HI 3050N stirrers with incorporated pH meter:

Range: 0.00 to 14.00 pH

Resolution: 0.01 pH

Accuracy: ±0.01 pH

Input Resistance:

Calibration:

Offset Regulation:

Slope:

Temperature Compensation:

Table 3 lists the electrodes for various applications that can be used with HI 3050N.

Table 1: Mini and Normal Stirrers

Capacity

(Ltr)

Model

HI 190M HI 190MB

HI 200M

HI 300N

HI 301N

HI 302N

HI 303N

HI 304N

HI 3050N

0.0 to 100ºC

0.1ºC

±0.4ºC

Ohm

Double-point in neutral buffer solution plus an acid or alkaline buffer solution

±1 pH

85% to 105%

Completely automatic with HI 7667 temperature probe from 0ºC to 100ºC. The values indicated refer to temperature at 25ºC

Speed Range

(rpm)

Display

1 1

2.5

Min: 100 Max: 1000

Min: 100 Max: 1000 Min: 100 Max: 1000 Min: 100 to 500 Max: 100 to 1000 Min: 100 Max: 1000 Min: 100 to 500 Max: 100 to 1000 Min: 100 Max: 1000 Min: 100 Max: 1000



   

4-digit LCD for rpm 4-digit LCD for rpm pH /

set point

All plastic

Stainless steel cover All plastic

Stainless steel cover Stainless steel cover Stainless steel cover Stainless steel cover plastic

Casing

Material

Size

LxBxH (in mm)

120x120x45

180x180x70

Weight

(Kg)

0.6

0.5

0.6

1.6

1.3

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Table 2: Auto-speed Stirrers

Capacity

Speed Range

(Ltr)

Model

HI 310N

HI 311N

HI 312N

HI 313N

HI 314N

HI 322N

HI 324N

Electrode Application Chart: Only for lab application

Application Electrodes

1.Biomedical HI1413B, HI1083B, HI1330B, HI131B,

2. Bloo d HI1083B, HI1413B, HI1330B

3. Breweries HI1910B, HI1911B, HI1131B

4. Distilled Water HI1053B, HI1043B, HI1911B

5. Field use HI1230B, HI1210S

6. Flow Application HI2110B, HI2114B, HI1135B, HI115S

7. Gel HI1413B, FC200B, HI1063, HI1053B

8. General Purpose HI1230B, HI1131B, HI1210S, HI332B

9. High Pressure HI2114B, HI2110B

10.Latex HI1030B, HI1131B, HI1043B

11. Low Conductivity HI1413B, FC220, HI1332B

12. Medium Pressure HI1134B, HI1910B, HI1912B

13. Mil k FC210B, FC200B

14.Non-aqueous HI1043B, HI1332B, HI1911B

15. Oil FC220, HI1413B, HI1053B

16. Paint s HI1053B, HI1030B, HI1043B

17.Paper HI1413B

18.Photographic Applications HI1910B, HI1230B, HI1210S

19. Process-General Purpose HI1910B, HI1912B, HI1230B, HI1134B

20. Process High Temp./Pressure HI1110S, HI1130B, HI2114B

21.Reacting Samples HI1040S, HI1043B, HI1312S, HI332B,

22. Research Laboratory HI1043B, HI1040S, HI1131B, HI111S,

23. Semisolid (Cheese, food, etc.) HI2031B, HI2020S, FC200B, FC210B

24.Slurries HI1911B, HI1053B

25. Soil HI1230B, HI1131B

26. Strong Acids HI1043B, HI1040S

27.Strong Alkalis HI1043B, HI1040S

28. Vials, Test Tubes, Flask Application HI1331B, HI1330B, HI1270/35, HI343B

29.Yogurt HI1413B, FC210B, FC200B

30. Plating Industry HI3230B (ORP-PT), HI3430B (ORP-PT),

31. Waste Water Treatment HI1910B, HI1912B, HI1134B, HI230B (ORP-PT), HI3430B (ORP-PT), HI4430B (ORP-Au)

2.5

(rpm)

Min: 100 Max: 1000 Min: 100 to 500 Max: 100 to 1000 Min: 100 Max: 1000 Min: 100 Max: 1000 Min: 100 to 500 Max: 100 to 1000 Min: 100 Max: 1000 Min: 100 Max: 1000

Display

  

4-digit LCD for rpm 4-digit LCD for rpm



4-digit LCD for rpm

Table 3

HI5311, HI5412, HI2110.

HI1910B

HI5311, HI5412, HI2110

HI4430 (ORP-Au)

Timer

Control

    

5 min. to

2 hr.

5 min. to

2 hr.

Size

LxBxH (in mm)

180x180x70

Weight

(Kg)

1.5

GENERAL DESCRIPTIONGENERAL DESCRIPTION

GENERAL DESCRIPTION

GENERAL DESCRIPTIONGENERAL DESCRIPTION

The Hanna series of bench top electromagnetic stirrers are designed with simplicity of use for stirring and mixing solutions in a wide range of laboratory applications. Eighteen models are available in an extensive range covering:

• mini-stirrers

• general purpose stirrers

• dual-speed range

• inverse cycle stirring

• rpm indication

• pH/ºC measurement

• timer control

• constant speed with feedback control

All models employ a motorized magnet to rotate a stirring bar to create a forced vortex rotational flow in the solution with a constant 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. Each stirrers is equipped with an opto-sensor which monitor the speed and a speed limiter circuit to prevent hazardous operation when the load is suddenly removed. The power required to effectively stir a fluid is influenced by the torque load on the stirrer which, in turn, is dependent on the capacity, type and viscosity of the fluid. The speed of the stirrer decreases as the torque load increases and vice versa, unless the power delivered changes accordingly. For Newtonian fluids like water, the viscosity remains constant during stirring. The mini and normal stirrers are ideal for Newtonian fluids.

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The mini-stirrers (HI 30XN series) cater up to

2.5 litres. For some fluids like oil and clay, the viscosity changes during the stirring process and it is necessary to adjust the power to maintain a constant 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 stirring with non-Newtonian fluids where the viscosity changes during stirring. It is 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 AutoSpeed stirrers maintain a constant stirring speed during the mixing up to the full capacity of 5 litres. They can also be used with Newtonian fluids up to a capacity of 5 litres.

Stirring Procedure:Stirring Procedure:

Stirring Procedure:

Stirring Procedure:Stirring Procedure:

1. Make sure that the SPEED knob (B) and the ON/OFF switch (L) are in the OFF positions.

2. Place a beaker or glass container on top of the stirrer and place the stirring bar at the centre of the beaker base.

3. Pour the reagent to be titrated into the beaker. Allow sufficient space for the titrant to be added without spillage.

4. Connect power cable and switch on the power supply. Then switch the stirrer on which the ON/OFF switch. Attach the pH electrode and temperature probe on the electrode holder (optional accessory) and adjust the holder so that pH electrode is at the centre of the beaker. Set the OFF/ºC/pH to pH to display pH measurement. You should read the pH of the reagent compensated for the sample temperature.

5. Adjust the SPEED knob slowly until the required stirring speed is achieved and allow sufficient time to attain uniform rotational flow.

6. Add the titrant through a burette and observe

the changes in pH value of the sample as the titrant is being added. Switch the OFF/ ºC/pH to ºC to display the temperature of the mixed sample if required.

7. When the titrant is completed, turn the SPEED knob to off. If no further stirring is required switch off the stirrer and disconnect the power supply.

FRONT PANELFRONT PANEL

FRONT PANEL

FRONT PANELFRONT PANEL

See Figures 2 to 7 on the following pages.

PowerPower

Power indication LED lights up when there

PowerPower

is power supply

SPEEDSPEED

SPEED knob for rpm setting with ON/OFF

SPEEDSPEED

and continuously variable up to the maximum.

HIGH/LOW HIGH/LOW

HIGH/LOW switch for selecting low speed

HIGH/LOW HIGH/LOW

range or high speed range. See Tables 1 and 2 for speed range of each model.

rpmrpm

rpm LCD displays the rpm setting by the

rpmrpm

SPEED knob.

REVERSE PERIOD REVERSE PERIOD

REVERSE PERIOD knob with ON/OFF

REVERSE PERIOD REVERSE PERIOD

and continuously variable selection of inversion cycle time in minutes, from 0.5 to 3 minutes.

TIME TIME

TIME knob for setting the stirring time from

TIME TIME

5 min. to 2 hours.

START/RESET START/RESET

START/RESET for starting and resetting

START/RESET START/RESET

the timer control.

OFF/ºC/pHOFF/ºC/pH

OFF/ºC/pH knob

OFF/ºC/pHOFF/ºC/pH

OFF:Switches display off ºC : Switches display to temperature

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