Hanna Instruments HI 901 User manual

INSTRUCTION MANUAL
HI 901 / HI 902
AUTOMATIC TITRATOR
NaOHTitrantConc.
StandardizeElectrode
General
OptionsSelect
MethodMethod
OptionsBurettepH/mV
ATCEndpointVolumepH
NoResult
1300/1300RPM
15:44:31Nov12,2003
N(eq/L)
0.0
0
0
NaOH
0.1 M

TABLE OF CONTENTS
Chapter 1. INTRODUCTION
Chapter 2. SETUP
Chapter 3. USER INTERFACE
Chapter . GENERAL OPTIONS
Chapter 5. METHODS
Chapter 6. TITRATION MODE
Chapter 7. pH & mV MODE
Chapter 8. AUXILIARY FUNCTIONS
Chapter 9. MAINTENANCE, PERIPHERALS
Appendix 1. TECHNICAL SPECIFICATIONS
Appendix 2. BACK TITRATION (HI 902 only)
Appendix 3. MULTIPLE EQUIVALENCE POINTS (HI 902 only)
Appendix . ACCESSORIES

Dear customer,
Thank you for choosing a Hanna Instruments Product.
This instruction manual has been written for the HI 901 / HI 902 Titrator roducts.
Please read this instruction manual carefully before using the instrument. This manual will
rovide you with the necessary information for the correct use of the instrument.
© 2004 Hanna Instruments
All rights are reserved. Re roduction in whole or in art is rohibited without the written consent of the co yright
owner, Hanna Instruments Inc., 584 Park East Drive, Woonsocket, Rhode Island, 02895, USA.

1-1
INTRODUCTION
1 INTRODUCTION
HI 901 and HI 902 are automatic titrators with high accuracy, great flexibility and re eatability.
The titrators are designed to erform a variety of otentiometric titrations, allowing the user
to obtain both good results and high s eed analysis.
The main attributes of these titrators are:
Flexibility Su ort u to 100 titration methods (standard and user defined).
High accuracy Precise dosing system (under 0.1% accuracy).
Precise mV and H measurements (± 0.1 mV and ± 0.001 H accuracy).
Inter olated end oint volume.
Re eatability Powerful built-in algorithms for equivalence oint detection (first derivative and second
derivative detection algorithms, filtered derivatives o tion, settable range for equivalence
oint detection).
Fixed end oint mV or H.
Quick results Standard titration methods.
Pre-titration dosing feature.
Dynamic / Linear dosing feature.
Com lete re ort The results are dis layed directly in the selected units.
Titration gra h can be dis layed on line and saved.
User customized re orts can be rinted, saved on flo y disk or transferred to PC via
RS232 interface.
The sam le information and data stam are included in the re ort.
Direct measurements The titrator can also be used for recise mV, H and tem erature measurements.
Re ort of data logging is available for direct measurements.
GLP features U to 5 standardization oints for the H electrode.
Reminders for titrant age and standardization ex iration.
Fields for s ecific annotations.
Large gra hical dis lay 7.5 B/W gra hical dis lay with backlight.
Easy to view text and gra hs.
Lots of information on each screen.
Self diagnosis and Integrated hel is available.
integrated hel Self diagnosis features for eri heral devices including um , valve, burette, stirrer.
Error management with warning and error messages.
Predefined troubleshooting titration methods.
This manual rovides information regarding installation and functionality of the titrator, ointing
out hints and refined o eration suggestions.
Before beginning to work with the titrator it is recommended to become familiar with its
various features.

1-2
INTRODUCTION

2-1
SETUP
Chapter 2. Contents
2 SETUP ................................................................................................... 2-3
2.1 Unpacking ............................................................................................. 2-3
2.2 Safety Measures ................................................................................... 2-
2.3 Installation ........................................................................................... 2-5
2.3.1 Titrator Front View ...................................................
....... ... .. .... . . .............. 2-5
2.3.2 Titrator Rear View
........................................................ ............................ 2 - 5
2.3.3 Titrator Left-side View ...........................................
..... ....... ....... ... .............. 2-6
2.3.4 Titrator Assembly ................................................... ..... ....... .. .................... 2 - 6
2.3.4.1 Assembling Stirrer Stand and Su ort ....................................................... 2 - 6
2.3.4.2 Attaching Stirrer ..........................................
........ ...... ........................... 2 - 7
2.3.4.3 Connecting the Pum ........................................................................... 2 - 8
2.3.4.4 Attaching Burette Blank Su ort ....................
........... ................. .............. 2-9
2.3.4.5 Attaching the Burette ......................................
.................... .................. 2 - 9
2.3.4.6 Electrical Connections ......................................
.............. .. ...................... 2-10
2.3.5 Connection to Earth .................................... .............................................. 2-11
2.3.6 Flo y Disk Drive ................................................... ..... .............................. 2-11

2-2
SETUP

2-3
SETUP
2 SETUP
2.1 Unpacking
The titrator and the accessories are shi ed in a single box containing:
ITEM QUANTITY
1 Titrator............................................................................... 1
2 Pum Assembly.............................
... .................................. 1
3 Burette Assembly................................................................. 1
 Burette (with 25 mL syringe)
 As iration Tube with Fitting and Protection Tube
 Dis ensing Tube with Normal Dis ensing Ti , Fitting,
Protection Tube and Tube Guide
 Tube Locks
 Tool for Valve Fitting and Burette Ca Removal
 Light S ectrum Protection Screen
4 Stirrer Su ort, Stand, Collar and Positioning Screw................ 1
5 Burette Blank Su ort.......................................................... 1
6 Pum and Burette Locking Screws with Plastic Head................ 2
9 Tem erature Sensor.............................................................. 1
10 Shorting Ca ....................................................................... 1
11 Power Cable........................................................................ 1
12 RS232 Cable....................................................................... 1
13 Instruction Manual Binder...................................................... 1
14 Start-u Disk (FDD with Titrator Installation Kit)..................... 1
15 HI 900 PC A lication (FDD with Installation Kit).................... 1
16 Quality Certificate................................................................ 1
See Appendix section A .3 Titrator components for ictures.
If any of the items is missing or damaged, lease contact your sales re resentative.
Note: Save all packing materials until you are sure that the instrument functions correctly.
Any damaged or defective items must be returned in their original packing materials
together with the supplied accessories.

2-4
SETUP
2.2 Safety Measures
The following safety measures must be followed:
1. Always ensure that the ower-su ly cable is connected to a grounded main ower lug.
2. Never connect or disconnect the um assembly with the titrator turned on.
3. Verify that the burette and the attached tubing are as described in this manual (see 9.1
Burette Maintenance section for more details).
4. Always check that the titrant bottle and the titration beaker are firmly sitting on a flat
surface.
5. Always wi e u s ills and s lashes immediately.
6. Avoid the following environmental working conditions:
 Severe vibrations
 Direct sunlight
 Atmos heric relative humidity above 95% non-condensing
 Environment tem eratures below 10°C and above 40°C and a normal humidity range
 Ex losion hazards
7. Have the titrator serviced only by qualified service ersonnel.

2-5
SETUP
2.3 Installation
2.3.1 Titrator Front View
2.3.2 Titrator Rear View
NaOH
0.1 M
Positioning collar
for stirrer adjustment
Locking screws
input

2-6
SETUP
2.3.3 Titrator Left-side View
2.3. Titrator Assembly
Note: Assembly operations must be completed before connecting the titrator to the power-supply
voltage
2.3. .1 Assembling Stirrer Stand and Support
Follow these ste s to assemble the stirrer:
 Remove the screws (2) from the titrator chassis (1).
 Attach the stirrer stand (3) to the titrator chassis. Make sure to osition the stirrer
stand close to the wall of the chassis.
 Tighten the stirrer stand (3) using the reviously removed screws (2).
 Screw the stirrer su ort (4) in the stirrer stand (3).

2-7
SETUP
2.3. .2 Attaching Stirrer
To attach the stirrer to titrator, follow these ste s:
 Attach the ro eller (2) to the stirrer (1) by ressing it onto the stirrer shaft.
 Insert the H electrode (3) and tem erature sensor (4) into the dedicated holes on
the stirrer. Push them in until they are tightened in a stable osition.

Slide the stirrer on the stirrer su ort and set the height by tightening the screw
located on the ositioning collar (5).

2-8
SETUP
2.3. .3 Connecting the Pump
To connect the um , follow these ste s:
 Retrieve the um cable from inside the bay. The um 1 connector is located in the
left side bay.

Connect the cable to the um as shown in the figure below. The um connector is
located in the lower art of the um , near the motor.
 Insert the um (2) into the dedicated bay. Lower the um until it reaches the
lowest osition, then slide it towards the front of the titrator chassis (1) until it is
firmly latched.
 Secure the um with the loking screw (3).

2-9
SETUP
HI 902 only:
Follow the revious ste s (2.3.4.3) to connect and attach the second um .
2.3. . Attaching Burette Blank Support (HI 901 only)
The burette blank su ort installation rocedure is as follows:
 Insert burette blank su ort (4) in the dedicated bay - on the right side (see the
revious icture). Lower the burette blank su ort until it reaches the lowest osition,
then ush it toward the front of the titrator chassis (1) until it is firmly latched.
 Secure the burette blank su ort with the locking screw (5).
2.3. .5 Attaching Burette
Make sure that the mark from the valve actuating ca and from the burette body are aligned
as shown in the figure below.
Take care to have a correct cou ling between the um lunger (2) and the syringe iston
(1) and also when sliding the burette onto its su ort, consider the alignment between the
valve actuating ca and the valve ositioning wheel, as shown in the figure below.

2-10
SETUP
2.3. .6 Electrical Connections
 Connect the H electrode to the BNC connector (5).
 Connect the tem era ture sensor to the RCA connector (6).
 Connect the stirrer to the MINI-DIN connector (7).
 Connect the ower-su ly cable to the ower su ly connector (2).
Nr Function Ty e of Connector
1 Power switch
2 Power su ly (115, 230 VAC, 50-60 Hz) IEC Power line connector
3 Earth connector 5 mm screw
4 Reference electrode Ø 4 mm banana socket
5 Connection for H or ORP indicating half-cell BNC socket
or combination electrodes ( H/mV)
6 Tem erature sensor RCA socket
7 Stirrer 4- in mini DIN
8 Connector for ex ansion device 8- in DIN socket
9 External PC keyboard 6- in mini-DIN (Standard PS2)
10 External dis lay Standard VGA dis lay 15- in socket
11 RS232 interface Standard DB 9 in socket
12 Printer standard DB 25 in socket

2-11
SETUP
2.3.5 Connection to Earth
It is im ortant that the titrator has a good connection to Earth. The titrator is ro erly
grounded through the ower cord and for added confidence the unit can be connected to
Earth using the o tional 5 mm screw and the nut connection located on the rear anel of
titrator.
2.3.6 Floppy Disk Drive
Re ort files, new created (user) methods, standard methods can be transferred to and
from the titrator using a standard 3.5 flo y disk.
Connect to Earth (optional)

2-12
SETUP

3-1
USER INTERFACE
Chapter 3. Contents
3 USER INTERFACE .................................................................................. 3-3
3.1 Start Up
........................................... ........................ .............................. 3-3
3.2 Description ............................................................................................ 3-
3.2.1 Key ad ........................................................................... ... ...................... 3-4
3.2.1.1 Function Keys ..................................................................................... 3 - 4
3.2.1.2 O tion Keys ................................................... ..................................... 3 - 4
3.2.1.3 Arrow Keys .........................................
............. .................................. 3 - 5
3.2.1.4 Numeric Keys .........................................................
.......... .................. 3 - 5
3.2.1.5 Enter Key ........................................................
.................... ............... 3 - 5
3.2.2 Dis lay ........................................................... ....... .. ..... ........................... 3 - 5
3.2.3 The Main Screen .......................................... .......... .... .. ......... . ................... 3 - 6
3.3 Menu Navigation ....................................... .... ........................................3-7
3.3.1 Selecting an O tion ................................................................................... 3 - 7
3.3.2 Selecting a Menu Item ............................................................................... 3 - 7
3.3.3 Entering Text .................... .......... ... .... ....................................................... 3 - 7
3.3.4 Saving Modifications .................................................. .. ... .. ......................... 3 - 8

3-2
USER INTERFACE