CH-9101 Herisau/Switzerland
E-Mail info@metrohm.com
Internet www.metrohm.com
719 S Titrino
Program version 5.719.0021
Instructions for Use
8.719.1103 03.2002 / pkl
Table of contens
Table of contents
1 Introduction ..........................................................................................................1
1.1 Instrument description...........................................................................................1
1.2 Controls and parts.................................................................................................2
2
Manual operation..................................................................................................6
2.1 Keypad ..................................................................................................................6
2.2 Principle of data input............................................................................................ 7
2.3 Text input ...............................................................................................................8
2.4 Tutorial ................................................................................................................... 9
2.4.1 Entering data, setting the dialog language....................................................9
2.4.2 Development of a method, titration of an acid.............................................11
2.4.3 Storage and loading of methods ................................................................. 16
2.4.4 pH calibration...............................................................................................17
2.4.5 Statistics, acid capacity of drinking water.................................................... 18
2.5 Configuration, key <CONFIG>...........................................................................21
2.6 Selection of the mode, key <MODE> ................................................................ 24
2.7 Parameters, key <PARAM> ............................................................................... 25
2.7.1 Parameters for SET ...................................................................................... 25
2.7.2 Parameters for MEAS................................................................................... 34
2.7.3 Parameters for CAL......................................................................................36
2.8 Result calculations............................................................................................... 39
2.9 Statistics calculation ............................................................................................ 41
2.10 Common variables ..............................................................................................43
2.11 Data output..........................................................................................................44
2.12 Method memory, keys <USER METH> ............................................................. 47
2.13 Calibration data, key <CAL.DATA> ...................................................................49
2.14 Current sample data, key <SMPL DATA> .........................................................50
2.15 Silo memory for sample data ..............................................................................51
3
Operation via RS232 Interface...........................................................................55
3.1 General rules .......................................................................................................55
3.1.1 Call up of objects ......................................................................................... 56
3.1.2 Triggers ........................................................................................................57
3.1.3 Status messages .........................................................................................58
3.1.4 Error messages............................................................................................60
3.2 Remote control commands................................................................................. 63
3.2.1 Overview.......................................................................................................63
3.2.2 Description of the remote control commands ............................................. 76
3.3 Properties of the RS 232 Interface.......................................................................95
3.3.1 Handshake...................................................................................................95
3.3.2 Pin Assignment ............................................................................................ 99
3.3.3 What can you do if the data transfer does not work? ................................ 101
4
Error messages, Troubleshooting...................................................................103
4.1 Error and special messages.............................................................................. 103
4.2 Diagnosis........................................................................................................... 106
4.2.1 General....................................................................................................... 106
4.2.2 Procedure................................................................................................... 106
719 S Titrino
Table of contents
4.2.3 Equipment required: .................................................................................. 107
4.2.4 Diagnosis steps ......................................................................................... 107
4.3 Initialise and test RAM....................................................................................... 116
4.4 Releasing a locked spindle with inserted Exchange Unit ................................. 117
5
Preparations .....................................................................................................118
5.1 Setting up and connecting the instruments ...................................................... 118
5.1.1 Titrino with Stirrer or Titration Stand........................................................... 118
5.1.2 Connection of a printer .............................................................................. 119
5.1.3 Connection of a balance............................................................................ 120
5.1.4 Connection of a Sample Changer ............................................................. 121
5.1.5 Connection of a recorder........................................................................... 122
5.1.6 Connection of a computer......................................................................... 123
5.2 Connection of electrodes, preparing titration vessel ........................................ 124
6
Appendix ...........................................................................................................127
6.1 Technical specifications.................................................................................... 127
6.2 Pin assignment of the "Remote" socket ............................................................ 129
6.2.1 Lines of the "Remote" socket during the titration....................................... 131
6.2.2 Possible configurations of the activate pulse in SET and CAL.................. 132
6.3 User methods.................................................................................................... 133
6.3.1 General ...................................................................................................... 133
6.3.2 "Tit.HCl" ...................................................................................................... 134
6.3.3 "Tit.NaOH" .................................................................................................. 135
6.3.4 "p+m_Val".................................................................................................. 136
6.3.5 "Br_No"....................................................................................................... 137
6.4 Validation / GLP................................................................................................. 138
6.5 Warranty and conformity ................................................................................... 139
6.5.1 Warranty..................................................................................................... 139
6.5.2 EU Declaration of conformity..................................................................... 140
6.5.3 Certificate of Conformity and System Validation ....................................... 141
6.6 Scope of delivery and ordering designations ................................................... 142
Index.........................................................................................................................145
719 S Titrino
1.1 Instrument description
1 Introduction
1.1 Instrument description
The 719 S Titrino is a titrator to perform fast and precise endpoint titrations.
Ready-to-start methods for the most common applications are stored in the internal
method memory. The operator is free to modify and overwrite this methods or to create
and store his own titration sequences.
Data exchange with a PC is possible with the Metrodata VESUV Software and with Metrodata TiNet Software complete remote control, data acquisition and evaluation via PC is
enabled.
719 S Titrino
1
1.2 Controls and parts
1.2 Controls and parts
Front view of instrument:
719 S Titrino
2
1.2 Controls and parts
1 Exchange Unit
2 Display
3 Setting of display contrast
4 Controls the dosing rate during manual dosing with <DOS> and subse-
quent filling
5 Control keys and indicator lamps on the Titrino
Key <DOS> Dosing key. Dispensing is performed as long as <DOS> is being
pressed. Used e.g. to prepare the Exchange Unit. The dispensing
rate can be set with potentiometer (4).
Key <STOP/FILL> - Stops procedures, e.g. titrations, conditioning.
- Filling after manual dosing with <DOS>.
Key <START> Starts procedures, e.g. titrations, conditioning.
Identical with key <START> of the separate keypad.
Indicator lamps:
"Statistics" Lamp is on when the "statistics" function (calculation of mean and
standard deviation) is on.
"Silo" Lamp is on when silo memory (for sample data) is on.
719 S Titrino
3
1.2 Controls and parts
Rear view of instrument:
719 S Titrino
4
1.2 Controls and parts
6 RS232 interface
for the connection of printer, balance or a computer
7 Remote lines
(input/output)
for the connection of the Remote Box, Sample Changers, robots etc.
8 Connection of electrodes and temperature sensor
• 2 high-impedance measuring inputs for pH and U measurements (Ind I/ Ind II).
They can either be used separately or for differential potentiometry, see page
124.
Important: If you work with both measuring inputs in the same vessel, the same
reference electrode must be used.
• 1 measuring input for polarized electrodes (Pol).
• 1 measuring input for PT100 or Pt1000 temperature sensor.
9 Connection for separate keypad
10 Analog output for the connection of a recorder
11 Connection for power cable
With power supplies where the voltage is subject to severe HF disturbances, the Titrino should be operated via an additional power filter, e.g. Metrohm 615 model.
12 Mains switch
13 Earthing socket
14 Connection for stirrer
728 Magnetic Stirrer, 802 Rod Stirrer, 703 or 727 Ti Stand
Supply voltage: 9 VDC (I ≤ 200 mA)
15 Display of the set mains voltage
Before switching on for the first time, check that the set mains voltage matches the
voltage of your power supply. If this is not the case, disconnect mains cable and
change voltage.
16 Rating plate
with fabrication, series and instrument number
719 S Titrino
5
2.1. Keypad
2 Manual operation
2.1 Keypad
CONFIG Configuration.
PARAM Parameters.
SMPL DATA Sample data.
STATISTICS ON/OFF switching of statistics calcu-
lations of consecutive determination,
see page 41.
MEAS/HOLD ON/OFF switching of measurements
between titrations and hold during titrations.
SILO ON/OFF switching of silo memory for
sample data, see page 51.
CAL.DATA Calibration data, see page 49.
C-FMLA Calculation values, see page 40.
DEF Formulas, data output, see page 39ff.
USER METH Management of internal method
memory, see page 47.
PRINT Printing of reports, see page 44.
REPORTS Result output.
MODE Mode selection, see page 24.
<,> Keys for text input.
SELECT Selection of special values (dialog
marked with ":")
CLEAR Clears values, set special values.
ENTER Stores values.
STOP Stops methods.
QUIT Quits inquiries, waiting times, printing.
START Starts methods.
The third functions (inscriptions in the triangle) on the keys of the keypad are used for
formula entry, see page 39.
719 S Titrino
6
2.2 Principle of data input
2.2 Principle of data input
• If you press a key you will find the corresponding
menu in the display.
Example key <CONFIG>:
configuration
>peripheral units
>peripheral units
send to: IBM
configuration
>auxiliaries
SET pH ********
In the first line you see where you are: You pressed
key <CONFIG> and you are now in the menu "configuration".
• In our example you are in the menu "configuration"
on the title ">peripheral units". By pressing
<CONFIG> you can move to the other titles of this
menu.
• If a dialog text is marked with ">", it contains a
group of inquiries. You branch into this group by
pressing <ENTER>.
Example inquiries of "peripheral units":
The first line indicates again where you are.
If a dialog text of an inquiry is marked with ":", you
can select a value with the key <SELECT>.
• A value is stored with <ENTER> and the cursor
moves to the next inquiry.
• Repeated pressing of <ENTER> moves you
through the inquiries of the group ">peripheral
units“, after the last inquiry of this group you leave
this group and return to the level above.
The next group of the menu "configuration“ appears:
">auxiliaries“
• With key <QUIT> you leave an inquiry or a group of
inquiries, it always
• In this example you leave the menu "configuration"
by pressing <QUIT> and return to the display of titration mode and the chosen method.
moves you one level up.
719 S Titrino
7
2.3. Text input
2.3 Text input
<USER METH>
user methods
>recall method
<USER METH>
<ENTER>
>store method
method name:
<CLEAR>
<<>
>store method
method name: ABCDEFG
<QUIT>
<ENTER>
>store method
method name: text
Example storing a method:
• Press key <USER METH>, the group ">recall
method" appears.
• Choose ">store method" by pressing <USER
METH> and press <ENTER>.
The name of the method which is currently in the
working memory is displayed.
• Delete this name with <CLEAR>.
• Open the "text writing mode" with key <<>.
• Select the character marked by the blinking cursor
with the Keys <<> and <>>, confirm it with
<ENTER>. Select the next character...
When you confirmed the last character, i.e. your
name is complete, you quit the text writing mode
with <QUIT>.
Confirm now the name with <ENTER>.
If your text fills the whole text field, just press
<ENTER> to store the text.
• During text input you can correct typing errors with
<CLEAR>:
<CLEAR> deletes the characters one by one.
• If you wish to modify an existing name (e.g. if you
have names like Text 1, Text 2, Text 3), do not delete
the existing name before you start the text input
mode. Proceed then as follows:
1. Press <USER METH>, place the cursor to
">store method" and press <ENTER>.
2. Open the text writing mode directly: Press key
<<>.
3. <CLEAR> now deletes the characters one by
one or you can add additional characters.
719 S Titrino
8
2.4 Tutorial
2.4 Tutorial
This short operating course teaches you to work quick and efficient with the 719 S Titrino,
by means of the most important applications.
Set up your Titrino and connect the peripheral devices needed, see chapter 5.
2.4.1 Entering data, setting the dialog language
We can thus make a start and first take a look at the fundamentals of the entry of data.
We change the dialog language.
SET pH ********
<CONFIG>
configuration
>peripheral units
<CONFIG>
configuration
>auxilliaries
<ENTER>
>auxilliaries
dialog: english
<SELECT>
>auxilliaries
dialog: español
<ENTER>
>ajustes varios
fecha 2002-03-13
• Switch on the Titrino. It is now in the standby state, it
shows you the active mode and method name.
• Press the key <CONFIG>, the display shows:
This is the title of the group "peripheral units". This
group contains various inquiries about peripheral
units.
• Press again <CONFIG>. You see the title of a new
group of inquiries.
This "auxiliaries" group contains the inquiry for the
dialog language.
• Pressing the <ENTER> key takes you to the inquiries of the group "auxiliaries". Note the ">" sign. All titles of inquiry groups are prefixed by this sign.
This is the first inquiry of the "auxiliaries" group: the
selection of the dialog language.
• You select the various dialog languages with the
<SELECT> key. Press <SELECT> repeatedly until
"español" appears in the display.
Note the sign ":". It appears if the values can be selected with the key <SELECT>.
• Accept the new "value" with <ENTER>.
The next inquiry "fecha" (date) of the group "ajustes
varios" (auxiliaries) is shown.
You can open this inquiry by pressing <ENTER>
too and go through all the inquiries of this group this
way.
719 S Titrino
9
2.4. Tutorial
<QUIT>
configuration
>ajustes varios
<QUIT>
SET pH ********
Because this inquiry follows no colon ":" the value
can't be selected by <SELECT>, the date "fecha"
has to be entered with the numeric keys.
• Exit the inquiries with <QUIT>. You are one level
higher in the "configuration" menu showing the title
"ajustes varios" (auxiliaries).
• Press <QUIT> once again to exit the "configuration"
menu and return to the standby state.
All the dialog texts will now be displayed in Spanish.
If you prefer English as the displayed dialog language, proceed as before and select "English".
719 S Titrino
10
2.4 Tutorial
2.4.2 Development of a method, titration of an acid
Selection of the mode
<MODE>
mode
mode SET
<ENTER>
SET pH ********
SET: pH
4 × <SELECT>
SET pH ********
Now set the end point.
Entry of the end point and the control parameters
<PARAM>
parameters
>SET1
<ENTER>
>SET1
EP at pH OFF
>SET1
EP at pH 7.00
<ENTER>
>SET1
dynamics OFF
>SET1
dynamics 3
<ENTER>
>SET1
max.rate 10.0 ml/min
<ENTER>
• Press <MODE> repeatedly until "SET" appears in
the display. For a description of the SET mode see
page 30ff.
• Confirm "SET" with <ENTER>
• Now select the measured quantity: Press
<SELECT> repeatedly until "pH" appears again in
the display.
Confirm the measured quantity "pH" with
<ENTER>.
• Press <PARAM>. The display shows:
Control parameters for EP1
• Set the end point to pH = 7.00.
• Dynamics means the control range in which the
adding of the titrant is controlled in dependence on
the measured value (OFF: largest control range, i.e.
slow titration).
Set the range to 3. I.e. 3 pH units before the set EP
controlled dosing starts.
Maximum possible titration rate inside the control
range.
719 S Titrino
11
2.4. Tutorial
>SET1
min.rate 25.0µl/min
2 × <QUIT>
Minimum titration rate inside the control range.
• Quit the inquiry with <QUIT>.
For the titration put a Exchange Unit with c(NaOH) = 0.1 mol/L on the Titrino and rinse
the tubing and the buret Tipp with <DOS>. Fill the buret again with <STOP/FILL>.
Plug a combined pH glass electrode into measuring input 1 (Ind I).
Pipette 2 mL c(HCl) = 0.1 mol/L into your titration vessel, dilute with ca. 20 mL dist. water.
Put a magnetic stirrer in the titration vessel and place buret tip and electrode in the probe,
see page 126 for their arrangement.
Start the stirrer and press <START>
During the titration the first line of the display shows the current measured value and the
volume already dispensed. The second line shows a "control bar", which indicates the
control deviation of the current measured value from the set end point.
pH 2.67 0.351 ml
#======
After the titration the end point volume and its pH value is displayed.
With this end point a result can be calculated:
Calculation of the result: formula entry
With this equivalence point a result can be calculated.
• Press the <DEF> key.
• Press <ENTER> to move on to the formula entry.
The display now shows "RS?".
• Press "1", i.e. the first formula.
You now can enter a formula. Note here the top inscription on the keys of the keypad and the numbers. The
following symbols can be used:
EP# EP's with 1-digit number, e.g. EP1.
RS# Previously calculated results, e.g. RS1 in the sec-
ond formula.
C## Calculation constant with 2-digit number, e.g. C01.
C00 is reserved for the sample size. For the meaning of the calculation constants see page 40.
def
>formula
RS?
RS1=
<DEF>
<ENTER>
<1>
719 S Titrino
12
2.4 Tutorial
RS1=EP1*C01*C02/C00
<ENTER>
>formula
RS1 text RS1
>formula
RS1 decimal places 2
>formula
RS1 unit %
<SELECT>
<ENTER>
RS?
2 x <QUIT>
Calculate the content of your hydrochloric acid in g/L:
RS1=EP1*C01*C02/C00
End point*conc.(titrant)*molecular weight/sample size
To correct a formula, delete it with <CLEAR>.
• Confirm the formula with <ENTER>.
• You may enter a text for the result output, see page
8.
• Enter the desired number of decimal places for the
result.
• Select the desired unit g/L with <SELECT>, or type
a text as unit, see page 8.
The Titrino prompts for the calculation of the next result.
Quit the formula entry by pressing <QUIT> twice.
In order to be able to calculate the result, enter the calculation constants used in the formula.
Entry of the calculation constants
<C-FMLA>
C-fmla
>C01 0.0
0.1
<ENTER>
C-fmla
>C02 0.0
• Press <C-FMLA>.
The constants which have been used in the formula
are requested: input with digit keys, confirm with
<ENTER>.
C01: Concentration of your titrant= 0.1 mol/L.
Enter 0.1.
C02: Molar mass of HCl = 36.47 g/mol
Enter 36.47.
36.47
<ENTER>
Now only the constant C00 is missing to perform the calculation. This constant is reserved for the sample size. It can be entered directly.
719 S Titrino
13
2.4. Tutorial
Entry of the sample size
4 x <SMPL DATA>
smpl data
smpl size 1.0 g
<2>
<ENTER>
smpl data
smpl unit: g
<SELECT>
<ENTER>
• Press <SMPL DATA> repeatedly until "sample size"
appears in the display.
• Enter 2.
• Use <SELECT> to select the unit "mL" and confirm
the new value with <ENTER>.
The result is now calculated and can be displayed in place of the end point. If your
method already includes a formula at the end of the titration, the calculated result is displayed directly after the titration. As we have entered the formula later, we now have to
select the result display:
Display of the result
<SELECT>
SET pH ********
>display results
<ENTER>
SET pH ********
RS1 3.71 g/l
• Press <SELECT> repeatedly until ">display results"
appears in the display.
• Press <ENTER> to move to the result display.
If you have a printer connected, you probably wish to have the curve and a result report
printed out automatically at the end of a titration.
To install a printer, see page 119.
719 S Titrino
14
2.4 Tutorial
Print reports
3 x <DEF>
def
>report
<ENTER>
report:
3 x <SELECT>
<;>
report:curve;full
<ENTER>
<QUIT>
• Press <DEF> repeatedly until the display shows:
• Press <ENTER> to move to the definition of reports.
• With <SELECT> you select the individual repot
blocks. Use a ";" as delimiter between the report
blocks to print more than one block. If you wish to
print out a full result report, enter "full".
• Confirm the entry with <ENTER> and quit the inquiries with <QUIT>.
Now print your reports by pressing <PRINT><REPORTS><ENTER>. Your printout will
look like the following:
'fr
719 S Titrino 18200 719.0021
date 2002-03-13 time 17:34 1
pH(init) 2.40 SET pH ********
smpl size 2 ml
EP1 2.032 ml 8.14
RS1 3.71 g/l
---------------
Identification of the report type (fr=full report)
Device type, device number and program version
Initial pH value, mode and method name
Volume and pH value of EP1
Calculated result
The development of your method is now complete. Before we store it in the method
memory, you should check it again. Prepare a fresh sample and restart the titration with
<START>.
If everything appears to be all right, you can now store the method in the method memory.
719 S Titrino
15
2.4. Tutorial
Y
2.4.3 Storage and loading of methods
Now store the method you have just developed in the method memory.
Storage of a method
2 × <USER METH>
user methods
>store method
<ENTER>
>store method
method name: ********
<ENTER>
SET pH Acid
If you have a printer connected, you can print out the contents of your method memory.
Key sequence: <PRINT><USER METH><ENTER>
Stored methods can be loaded at any time.
Loading a method from the method memory
<USER METH>
user methods
>recall method
<ENTER>
>recall method
method name: ********
<SELECT>
or
direct entry
<ENTER>
SET pH Acid
• Press <USER METH> repeatedly until the title
">store method" appears in the display.
• Open the inquiry with <ENTER>.
• Enter an identifier, e.g. 1 or Acid.
For text input see page 8.
The method now runs under the name "Acid". It is ready
to titrate.
• Press <USER METH>. The display shows the title
">recall method".
• Open the inquiry <ENTER>
•
ou can select the desired method with <SELECT>
(it shows all methods of the method memory one after the other) or by directly enter the method name.
• Load the method with <ENTER>
The method is ready to titrate.
719 S Titrino
16
2.4 Tutorial
2.4.4 pH calibration
For end-point titrations, however, where titration is performed to a fixed, specified pH
value, a calibration should be performed.
Selection of the calibration mode, CAL
<MODE>
mode
mode CAL
<ENTER>
CAL ********
pH(as) 7.00 slope 1.000
Calibration procedure
<START>
CAL
cal.temp. 25.0°C
<ENTER>
25.0°C
buffer 1 pH 7.00
<ENTER>
25.0°C
buffer 2 pH 4.00
<ENTER>
oder
<STOP>
CAL ********
pH(as) 6.89 slope 0.985
The calibration data can be viewed at any time under the <CAL.DATA> key. Our calibration data are stored under ">input 1".
The calibration report can be printed out at any time with the key sequence:
<PRINT><CAL.DATA><ENTER>
• Press <MODE> repeatedly until "CAL" appears in
the display and confirm the mode with <ENTER>.
The instrument is ready for a 2-point calibration. The
second display line shows the current calibration data
for measuring input 1.
• Immerse your electrode in the first buffer and start
the calibration procedure.
Inquiry of calibration temperature.
• Enter the current temperature. If you have a temperature sensor connected, this inquiry is skipped.
pH value of the first buffer.
• Enter the pH value of the buffer at your calibration
temperature.
The voltage of the first buffer is measured. When the
measured value has met the set drift criterion, the
measurement is stopped and the pH value of the second buffer is requested.
• Now enter the pH value of the second buffer. If you
require a 1-point calibration, you can also terminate
the calibration with <STOP>.
At the end of the calibration, the calibration data obtained are displayed: asymmetry pH and slope.
719 S Titrino
17
2.4. Tutorial
2.4.5 Statistics, acid capacity of drinking water
Let us now determine the acid capacity of drinking water. For this, the SET (set endpoint
titration) mode is used to titrate to pH = 4.3.
Load the method "Acid", the one that you just have stored in the method memory, see
page 16 .
Set the end point pH = 4.3 and dynamics 3 as you did with your first example (key
<PARAM>). If you still feel unfamiliar with that, see page 11 again.
Now alter the calculation formula before the titration (keys <DEF>,<ENTER> and <1>).
Delete the existing formula with <CLEAR> and enter the following formula:
RS1=EP1*C01*C02
with an accuracy of RS1 decimal places 2
the unit RS1 unit: mmol/L
and the calculation constants C01 1 (concentration of titrant ×10)
(key <C-FMLA>) C02 4 (factor for the sample size 100 mL/25 mL)
If you have a printer connected to your Titrino, you can print out the titration parameters
with the keys
<PRINT><PARAM><ENTER>.
Mount an Exchange Unit with c(HCl) = 0.1 mol/L as titrant. Add 25 mL drinking water as
sample and start the titration with <START>. During the titration the first line of the display shows the measured value and dispensed volume. The "c" in pHc shows that the
electrode assembly has been calibrated. The second line shows a "control bar", which
indicates the control deviation of the current measured value from the set end point.
If the titration runs too slow or too fast, you can change the control parameters during the
titration. If you wish to titrate faster, change the following parameters:
• dynamics: lower value, the control range becomes smaller (Attention: possibility of
titrating over the set EP)
• max.rate: bigger value
• min.rate: bigger value
You will find further details of the control parameters on page 31.
After the titration, end point volume and pH value at the end point are displayed.
pHc 6.34 0.426 ml
#======
719 S Titrino
18
2.4 Tutorial
If the previous titration has run to your satisfaction, you can start thinking about performing statistics calculations. Have you already added a new sample to the titration vessel? If
you are no longer certain, you can find out immediately with <MEAS/HOLD>.
Rapid measurement between titrations
Press <MEAS/HOLD>. The pH value of your sample is displayed. You can stop the
measurement with a second <MEAS/HOLD>.
Statistics calculations
Now switch on the statistics calculations. Press <STATISTICS>. The "Statistics" LED is
on. Duplicate determinations are now performed.
• Perform 2 titrations.
After the second titration you receive a printout with statistics calculations:
'fr
719 S Titrino 18200 719.0021
date 2002-03-13 time 17:34 3
pHc(init) 6.29 SET pH Acid
EP1 0.0628 ml 4.26
m value 5.02 mmol/l
mean(2) +/s s/%
m value 5.04 0.028 mmol/l 0.56
==============
If you have no printer connected, you can view the mean value and standard deviation:
• Press <SELECT> until "display mean" appears in the display.
• With <ENTER> you obtain the mean value.
• A second <ENTER> displays the number of single values which have been used for
the mean calculation.
• If you press <SELECT> again, the display "display std.deviation" appears. Once
again, you can view this value, by pressing <ENTER>.
Perhaps you have noticed that the two values differ too greatly? In any case, we shall perform a third determination with the same sample. The result of this determination will be
another value which is incorporated in the statistics calculations.
Addition of more determinations for the statistics calculations
5 × <PARAM>
parameters
>statistics
<ENTER>
>statistics
status: ON
<ENTER>
719 S Titrino
• Press <PARAM> until the display shows:
• Statistics calculations can be switched on either with
the <STATISTICS> key or in the inquiry "status:".
We shall leave them switched on and proceed to the
next inquiry.
19
2.4. Tutorial
>statistics
mean: n= 2
<3>
<ENTER>
2 × <QUIT>
Mean value of 2 single determinations.
• Enter "3" to include an additional determination.
• Quit the inquiry.
Perform another titration.
You can now decide which of the results is an "outlier". You can delete it from the statistics
calculation.
Deleting a result from the statistics calculation
5 × <PARAM>
parameters
>statistics
3 × <ENTER>
>statistics
res.tab: original
2 × <SELECT>
>statistics
res.tab: delete n
<ENTER>
>statistics
delete n= 1
<2>
<ENTER>
2 × <QUIT>
• Press <PARAM> until the display shows:
• Select with <ENTER> the inquiry of the result table
"res.tab:"
• To delete a single result with index n from the result
table, press <SELECT> so that "delete n" appears.
• Enter index n of the result you wish to delete; in our
example the second:
• Quit the inquiry by pressing <QUIT>.
Mean value and standard deviation are recalculated
and can be viewed in the display.
With <PRINT><REPORTS><ENTER> you can print
a fresh report.
With <PRINT> <STATISTICS><ENTER> you can
print a statistics overview, in this report the deleted
result is marked with a "∗" in the report.
719 S Titrino
20
2.5 Configuration, key <CONFIG>
2.5 Configuration, key <CONFIG>
CONFIG
configuration
>peripheral units
>peripheral units
send to: IBM
balance: Sartorius
record: U
Key <CONFIG> serves to enter device specific data.
The set values apply to all modes.
peripheral units:
Selection of printer, balance and the curve at the analog output.
auxiliaries:
e.g. setting of dialog language, date, time, etc.
RS232 settings:
RS parameters for the COM interface.
common variables:
Values of common variables.
The display texts of the Titrino are shown to the left.
The values are the default values.
Settings for peripheral units
Selection of printer (Epson, Seiko, Citizen, HP, IBM) at
the Titrino Rs232 interface.
"Epson", for Epson
"Seiko", e.g. for DPU-414
"Citizen", e.g. for iDP 562 RS, Custom DP40-S4N
"HP" e.g. for Desk Jet types. Place curves always at the
beginning of a page as you cannot have them over 2
pages.
"IBM" for all printers with IBM character set Table 437
and IBM graphics, as well as for the data transmission
to a computer with Metrodata software TiNET or
VESUV.
Selection of balance (Sartorius, Mettler, Mettler AT,
AND, Precisa)
Sartorius: Models MP8, MC1
Mettler: Models AM, PM, AX, MX, UMX and
balances with 011, 012, or 016 interface
Mettler AT: Model AT
AND: Models ER-60, 120, 180, 182, FR-200, 300
and FX-200, 300, 320
Precisa: Models with RS232C interface
Selection of the curve for the output at the analog
output (U, dU/dt, V, dV/dt, U(rel), T
U:. Voltage
dU/dt: Measured value drift
V: Volume
dV/dt Volume drift
U(rel): Control deviation with SET
T: Temperature with MEAS T
719 S Titrino
21
2.5. Configuration, key <CONFIG>
>auxiliaries
dialog: english
date 2001-03-13
time 08:13
run number 0
auto start OFF
start delay 0 s
dev.label.
program 719.0021
>RS232 settings
baud rate: 9600
data bit: 8
stop bit: 1
parity: none
handshake: HWs
RS control: ON
General settings
Selection of dialog language (english, deutsch,
francais, español, italiano, portugese, svenska)
Current date (YYYY-MM-DD)
Format: Year-month-day, entry with leading zeros.
Current time (HH-MM)
Format: Hours-minutes, entry with leading zeros.
Current run number for result output (0...9999)
The sample number is set to 0 when the instrument is
switched on and incremented on every determination.
Automatic starts of titrations. (1...9999, OFF)
Number of automatic starts ("number of samples").
Used for instrument interconnections in which the
external instrument does not initiate a start. Not
advisable in connections with Sample Changers.
Start delay (0...999999 s)
Delay time after start of methods. Abort start delay time
with <QUIT>.
Individual identification of devices (up to 8 ASCII
characters)
Will be printed in the result report, see page 45.
Display of program version
Settings of RS232 interface
see also page 95ff.
Baud rate (300, 600, 1200, 2400, 4800, 9600)
Data bit (7, 8)
Stop bit (1, 2)
Parity (even, odd, none)
Handshake (HWs, HWf, SWline, SWchar, none)
see page 95ff.
Control via RS232 interface (ON, OFF)
"OFF" means that the receipt of commands via the
RS232 interface is blocked. Data output
is possible.
719 S Titrino
22
2.5 Configuration, key <CONFIG>
>common variables
C30 0.0
etc.
Values of the common variables
±
Common variables C30...C39 (0..
999 999)
The values of all common variables are displayed. For
creating of common variables see page 43.
719 S Titrino
23
2.6. Selection of the mode, key <MODE>
2.6 Selection of the mode, key <MODE>
MODE
>
;
–
Press key <MODE> until the desired mode is
displayed and confirm with <ENTER>.
Select the measured quantity pH, U, Ipol, Upol, (T) with
<SELECT> and confirm it also with <ENTER>.
The following modes can be selected:
• SET: Set Endpoint Titration.
• CAL: pH Calibration.
• MEAS: Measuring.
These standard modes are loaded with a set of default
parameters and are ready to work (only with SET an
end point has to be set).
719 S Titrino
24
2.7 Parameters, key <PARAM>
2.7 Parameters, key <PARAM>
The key <PARAM> is used for the entry of values that
PARAM
determine the modes. Values marked with "cond." are
accessible during the conditioning in the SET mode.
"**titr." means that these values can be changed during the titration. They influence the ongoing determination. Other values can only be changed in the inactive
state.
The display texts of the Titrino are shown to the left.
The values are the default values.
2.7.1 Parameters for SET
parameters
>SET1
>SET1
EP at pH OFF
**titr.
dynamics OFF
**titr.
SET1, SET2:
Control parameters for EP1 and EP2.
titration parameters
are valid for the global titration sequence.
stop conditions:
Parameters for the termination of the titration.
statistics:
Calculation of mean values and standard deviation,
see also page 41.
preselections:
ON/OFF of various auxiliary functions such as automatic requests after the start and activate pulse.
Control parameters for EP1 or EP2, resp.
Preset EP1 (input range depends on the measured
quantity:
pH: 0...±20.00, OFF
U, Ipol: 0...±2000 mV, OFF
Upol: 0...±200.0 µA, OFF)
<CLEAR> sets "OFF".
If EP1 is "OFF", no further inquiries under SET1 appear.
Distance from EP where constant dosing should stop
and controlling begins. (control range, input range
depends on the measured quantity:
pH: 0.01...20.00, OFF
U, Ipol: 1...2000 mV, OFF
Upol: 0.1...200.0 µA, OFF)
<CLEAR> sets "OFF".
"OFF" means largest control range, i.e. low titration.
Outside the control range, dispensing is performed
continuously, see also page 31.
719 S Titrino
25
2.7. Parameters, key <PARAM>
max.rate 10.0 ml/min
**titr.
min.rate 25.0 µl/min
**titr.
stop crit: drift
**titr.
stop drift 20 µl/min
**titr.
t(delay) 10 s
**titr.
stop time OFF s
**titr.
>titration parameters
titr.direction: auto
pause 1 0 s
**titr.
Maximum dosing rate (0.01...150 mL/min, max.)
<CLEAR> sets "max.".
This parameter determines primarily the addition rate
outside the control range, see also page 31.
The maximum rate depends on the Exchange Unit:
Exchange Unit max.
5 mL 15 mL/min
10 mL 30 mL/min
20 mL 60 mL/min
50 mL 150 mL/min
Minimum dosing rate (0.01...999.9 µL/min)
This parameter determines the addition rate right at the
start and the end of the titration, see also page 42.
This parameter influences the titration speed and
therefore its accuracy very strongly: A smaller min.rate
results in a slower titration.
Type of stop criteria (drift, time)
Titration stops if EP is and stop drift is reached. (1...999
µL/min)
Titration stops if there is no dosing during t(delay).
(0...999 s, INF)
<CLEAR> sets "INF"
Switch off when the end point is reached and the set
time after the last dispensing has elapsed.
If "INF" is set, an inquiry regarding the stop time
appears.
If t(delay) is "INF"
Stop after a time (0...999999 s, OFF)
<CLEAR> sets "OFF".
Stop after the set time after the start of the titration.
"OFF" means no stop, i.e. titration for an "infinitely" long
time.
General titration parameters
Direction is set automatically (+, -, auto)
auto: The direction is set automatically by the Titrino
(sign [U
- EP]).
first
+: Direction of higher pH, higher voltage (more
"positive"), larger currents.
- : Direction of lower pH, lower voltage, smaller
currents.
The titration direction is fixed if two EP's are set. In this
case, an input for titration direction has no meaning.
Pause 1 (0...999999 s)
Waiting time, e.g. for the equilibration of the electrode
after the start. The waiting time can be aborted with
<QUIT>.
719 S Titrino
26
2.7 Parameters, key <PARAM>
start V: OFF
cond.
start V 0.0 ml
cond.
factor 0
cond.
dos.rate max. ml/min
**titr.
pause 2 0 s
**titr.
extr.time 0 s
**titr.
meas.input: 1
I(pol) 1 µA
U(pol) 400 mV
electrode test: OFF
temperature 25.0 °C
cond.
Type of start volume (OFF, abs., rel.)
"OFF": start volume switched off
"abs.": absolute start volume in mL
"rel.": relative start volume to sample size.
If "abs." is set:
Absolute start volume (0...999.99 mL)
If "rel." is set:
Factor for relative start volume (0...±999999).
Calculated as: start V (in mL) = factor
∗sample size
Dosing rate for start volume
(0.01...150 mL/min, max.)
<CLEAR> sets "max.".
The maximum rate depends on the Exchange Unit:
Exchange Unit max.
5 mL 15 mL/min
10 mL 30 mL/min
20 mL 60 mL/min
50 mL 150 mL/min
Pause 2 (0...999999 s)
Waiting time after start volume, e.g. reaction time after
dosing of a start volume. The waiting time can be
aborted with <QUIT>.
Extraction time (0...999999 s)
During extraction time no dispensing occurs but the
titration does not stop. The extraction time can be
aborted with <QUIT>.
Measuring input (1, 2, diff.)
Inquiry only with measured quantities pH and U.
Measuring input 1 or 2 or differential amplifier;
connection of electrodes, see page 124.
With polarized electrodes, instead of the measuring
input the
polarization current (-127...127 µA)
or the
polarization potential (-1270...1270 mV, in steps of 10
mV)
is inquired.
Electrode test (OFF, ON)
Test for polarized electrodes. Performed on
changeover from the inactive state to a measurement.
"OFF" means that the test is not performed.
Titration temperature (-170.0...500.0°C).
Temperature is measured at the start of the titration if a
T sensor is connected. The value is used for
temperature compensation in pH titrations.
719 S Titrino
27
2.7. Parameters, key <PARAM>
>stop conditions
stop V: abs.
**titr.
stop V 99.99 ml
**titr.
factor 999999
**titr.
filling rate max. ml/min
Stop conditions for titration
If this is not "normal", i.e. after reaching the EP.
Type of stop volume (abs., rel., OFF)
"abs.": absolute stop volume in mL.
"rel.": relative stop volume to sample size.
"OFF": stop volume switched off. Stop volume
is not monitored.
If "abs." is set:
Absolute stop volume (0...9999.99 mL)
If "rel." is set:
Factor for relative stop volume (0...±999999)
Calculated as:
Stop V (in mL) = factor
∗sample size
Filling rate after the titration
(0.01...150 mL/min, max.)
<CLEAR> sets "max.".
The maximum rate depends on the Exchange Unit:
Exchange Unit max.
5 mL 15 mL/min
10 mL 30 mL/min
20 mL 60 mL/min
50 mL 150 mL/min
>statistics
status: OFF
mean n= 2
res.tab: original
delete n= 1
Statistics calculation
Status of statistics calculation (OFF, ON)
If the statistics calculation is switched off, the following
inquiries regarding the statistics do not appear.
Mean value calculation from n single results (2...20)
Result table (original, delete n, delete all)
"original": The original table is used. Deleted
individual results are again incorporated in
the evaluation.
"delete n": Deletion of single results with the index n.
"delete all": The entire table is deleted.
Delete data from sample number n (1...20)
The deleted result is removed from the statistics
calculation.
719 S Titrino
28
2.7 Parameters, key <PARAM>
>preselections
conditioning: OFF
display drift: ON
cond.
drift corr: OFF
cond.
drift value 0.0 µl/min
cond.
req.ident: OFF
cond.
req.smpl size: OFF
cond.
activate pulse: OFF
cond.
Preselections for the sequence
Automatic conditioning of titration vessel. (ON, OFF)
If conditioning is "on", between the titrations the titration
solution is constantly maintained at the (1st) end point.
When conditioning is performed, the volume drift can
be displayed during the conditioning:
Display of drift during conditioning (ON, OFF).
Volume drift.
Type of drift correction (auto, man., OFF)
Type of drift correction: (EP – drift
∗ time)
auto: drift value at start is valid
man.: see below
OFF : no correction
µ
Value for manual drift correction (0.0...99.9
L/min)
Request of identifications after start of titration (id1,
id1&2, all, OFF)
After start, sample identifications can be requested
automatically: Only id1, id1 & id2, all three id's or no
inquiries.
Request of sample size after start of titration (value, unit,
all, OFF)
"all" the value and the unit will be requested.
Pulse output on I/O line 6 (L6, pin 1) of the remote
socket (first, all, cond., OFF)
see page 131.
719 S Titrino
29
2.7. Parameters, key <PARAM>
Titration sequence of SET
<START>
(Activate pulse)
After the start, the activate pulse is outputted.
(Start delay)
The start delay time is waited off.
(Preconditioning)
(<START>
(Activate pulse)
(Start delay)
If conditioning is on, the sample solution is titrated until
the (first) EP is reached. The display shows then
drift OK 2.3 µl/min
or
SET pH conditioning
The vessel is now conditioned. The titration can be started
with <START>.
(Request ident.)
(Request smpl size)
The sample identifications and the sample size are requested.
The temperature is measured if a T sensor is connected.
Pause 1 is waited off, the start volume is dispensed, and
(Start conditions)
pause 2 waited off.
(Extraction time)
Titration with test of
stop criterion
The titration to EP1, then to EP2 is executed. If the extraction time is not yet over when the EP's has been reached,
the titration will only be terminated after the extraction time
is over.
(Stirrer OFF)
Calculations are carried out.
Data output
Data are outputted.
(Reconditioning)
Conditioning is carried out.
719 S Titrino
30
2.7 Parameters, key <PARAM>
V
V
Control parameters
The control parameters can be set separately for each end point. Optimize your control
parameters for routine analyses for samples with a rather low content.
During the titration, reagent dosing occurs in 3 phases:
U/mV
EP
1. Initial dosing:
Here the dosing rate
increases constantly. The rate
starts with "min.rate" and
goes up to "max.rate".
2. Continuous dosing:
V/mL
Dosing is performed at the
maximum rate "max.rate" until
t/s
the control range (dynamics)
is reached.
3. Control range (dynamics):
In this range, dosing is
performed in single steps.
The last dosing steps are
controlled by the parameter
"min.rate".
Initial
dosing
Continuous
dosing
V/mL
Control
range
Trial settings for the size of the control range
Set a large control range for steep curves. Relatively flat curves, on the other hand, need
a smaller control range. You can get an initial, good approximation for the start of the
control range from the intersection point of the tangents:
"steep curves" "flat curves"
U/mV
Control
range
EP
/mL
Control
range
U/mV
EP
/mL
719 S Titrino
31
2.7. Parameters, key <PARAM>
Relation between the stop criteria "time" and "drift"
The stop criterion "time", t(delay), means that the end point must be exceeded for a
certain period of time. In other words, after the last dosed increment, time t is allowed to
elapse before the titration is stopped. The size of this last increment depends on the
volume of the Exchange Unit used. With a 20 mL Exchange Unit, the smallest possible
increment is 2 µL. With a t(delay) = 5 s, the last 2 µL reagent must thus suffice for 5 s or
longer. This results in a drift of
µL/min as it is not known whether the last increment would also suffice for 10 s). If you
have been working up to this point with a 20 mL Exchange Unit and a t(delay) = 5 s, you
can set a value of
the maximum stop drift.
min.incr. (Exchange Unit)
≤ 24 µL/min as stop drift. The following table shows several values for
0.5 µL (5 mL) 6 µL/min 3 µL/min 1.5 µL/min
1 µL (10 mL) 12 µL/min 6 µL/min 3 µL/min
2 µL (20 mL) 24 µL/min 12 µL/min 6 µL/min
≤ 2 µL/5 s = 24 µL/min (the drift can be less than 24
t(delay)
5 s 10 s 20 s
5 µL (50 mL) 60 µL/min 30 µL/min 15 µL/min
Same t(delay) with a range of extremely small volume increments means different switchoff points. In case the stop criterion "drift" is used, the stopping point remains the same.
719 S Titrino
32
2.7 Parameters, key <PARAM>
If you have entered the endpoint and the control range (dynamics), the default values for
the other control parameters should suffice for the first titration. If you encounter
difficulties in optimizing your titration, the following table will be of use.
How to proceed if ...
Problem Possible causes and corrective measures
Dosing at the end too long and
with too small increments.
"Never ends!"
• Increase "min.rate". Perform an experiment with a
much higher min.rate.
• Change switch-off criterion. Attempt, e.g. to increase
the stop drift or use a shorter t(delay) as stop
criterion.
• Possibly pass an inert gas through the titration
vessel.
"Overshoots". Titration is not
controlled, i.e. at the end single
pulses are not dosed.
• Lower "max.rate".
• Set larger control range.
• Set "min.rate" much lower.
• Optimize arrangement of electrode and buret tip and
improve stirring, see page 126. This is particularly
important with very fast titration reactions and with
steep curves.
Titration time is too long. • Set higher "min.rate".
• Set higher "max.rate".
• Lower "dynamics".
Scatter in titration results is too
great.
• Set "min.rate" lower.
719 S Titrino
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2.7. Parameters, key <PARAM>
2.7.2 Parameters for MEAS
parameters
>measuring parameters
>measuring parameters
signal drift OFF mV/min
equilibr.time OFF s
meas.input: 1
I(pol) 1 µA
U(pol) 400 mV
measuring parameters
determine the measurement.
statistics:
Calculation of mean values and standard deviation,
see also page 41.
preselections:
ON/OFF of various auxiliary functions such as automatic requests after the start and activate pulse.
Measuring parameters
Drift criterion for measured value acquisition (input
range depends on the measured quantity:
pH, U, Ipol: 0.5...999 mV/min, OFF
Upol: 0.05...99.9 µA/min, OFF
T: 0.5...999 °C/min, OFF)
<CLEAR> sets "OFF".
"OFF" means that the measured value is acquired after
a fixed equilibration time.
Waiting time for measured value acquisition (0...9999 s,
OFF)
<CLEAR> sets "OFF".
If no new equilibration time has been entered, the
Titrino calculates an equilibration time appropriate to
the drift with the formula
equilibr.time (in s)
150
=
+
+
5
0.01Drift
The measured value is acquired when the first criterion
(drift or time) is met. With drift and time "OFF", you will
have an "infinite" measurement.
Measuring input for pH and U. (1, 2, diff.)
Inquiry only with measured quantities pH and U.
Measuring input 1 or 2 or differential amplifier;
connection of electrodes, see page 124.
With polarized electrodes, instead of the measuring
input the
polarization current (-127...127 µA)
or the
polarization potential (-1270...1270 mV, in steps of 10
mV)
is inquired.
719 S Titrino
34
2.7 Parameters, key <PARAM>
electrode test: OFF
temperature 25.0 °C
>statistics
status: OFF
mean n= 2
res.tab: original
delete n= 1
>preselections
req.ident: OFF
req.smpl size: OFF
activate pulse: OFF
Electrode test (OFF, ON)
Test for polarized electrodes. Performed on
changeover from the inactive standby mode to a
measurement. "OFF" means that the test is not
performed.
Temperature (-170.0...500.0 °C)
Temperature is measured at the start if a T sensor is
connected.
This parameter is used for temperature compensation
in pH measurements.
Statistics calculation
Status of statistics calculation (OFF, ON)
If the statistics calculation is switched off, the following
inquiries regarding the statistics do not appear.
Mean value calculation from n single results (2...20)
Result table (original, delete n, delete all)
"original": The original table is used. Deleted
individual results are again incorporated in
the evaluation.
"delete n": Deletion of single results with the index n.
"delete all": The entire table is deleted.
Delete data from sample number n (1...20)
The deleted result is removed from the statistics
calculation.
Preselections for the sequence
Request of sample identifications after start of titration
(id1, id1&2, all, OFF)
After start, sample identifications can be inquired
automatically: Only id1, id1 & id2, all three id's or no
inquiries.
Request of sample size after start of titration (value, unit,
all, OFF)
Pulse output on line "activate" (L6, pin 1) of the remote
socket (ON, OFF)
see page 131.
719 S Titrino
35
2.7. Parameters, key <PARAM>
2.7.3 Parameters for CAL
parameters
>calibration parameters
>calibration parameters
meas.input: 1
cal.temp. 25.0 °C
buffer #1 pH 7.00
buffer #2 pH 4.00
buffer #3 pH OFF
signal drift 2 mV/min
equilibr.time 110 s
electr.id
calibration parameters
determine the calibration procedure.
statistics:
Calculation of mean values and standard deviation,
see also page 41.
Calibration parameters
Measuring input (1, 2, diff.)
Measuring input 1 or 2 or differential amplifier;
Connection of electrodes, see page 124.
Calibration temperature (-20.0 ... 120.0 °C)
If a T sensor is connected, the temperature will be
measured.
The calibration temperature can also be input during
the calibration sequence.
pH value of first buffer (0...±20.00)
The pH value of the buffers can be put in during the
calibration sequence.
pH value of second and the following buffers
(0...±20.00, OFF)
<CLEAR> sets "OFF".
Buffers are requested until "OFF" is set. This gives an
n-point calibration. Up to 9 buffers.
A regression line will be calculated in calibrations with
more than 2 buffers.
Drift for measured value acquisition (0.5...999 mV/min,
OFF)
<CLEAR> sets "OFF".
"OFF" means that the measured value is acquired after
an equilibration time.
Equilibration time (0...9999 s, OFF)
<CLEAR> sets "OFF".
If a new equilibration time has not been entered, the
Titrino calculates an equilibration time appropriate to
the drift, see page 32. The measured value is acquired
as soon as the first criterion (drift or time) has been
met.
If drift and time are both set to "OFF", the measured
value acquisition is immediate.
Electrode identification (up to 8 characters).
719 S Titrino
36
2.7 Parameters, key <PARAM>
sample changer cal: OFF
activate pulse: OFF
>statistics
status: OFF
mean n= 2
res.tab: original
delete n= 1
Calibration with sample changer (ON, OFF)
In calibrations with a sample changer, there are no
hold points in the calibration sequence for inputs.
Calibration temperature and pH values of the buffers
(which are temperature dependent) must therefore be
entered in advance. The inputs in key <PARAM> are
valid.
Pulse output on the line "activate" (L6, pin 1) of the
remote socket (all, first, OFF)
See page 131.
Statistics calculation
Status of statistics calculation (OFF, ON)
If the statistics calculation is switched off, the following
inquiries regarding the statistics do not appear.
Mean value calculation from n single results (2...20)
Result table (original, delete n, delete all)
"original": The original table is used. Deleted
individual results are again incorporated in
the evaluation.
"delete n": Deletion of single results with the index n.
"delete all": The entire table is deleted.
Delete data from sample number n (1...20)
The deleted result is removed from the statistics
calculation.
719 S Titrino
37
2.7. Parameters, key <PARAM>
Calibration sequence
<START>
(Activate pulse)
(Start delay)
Measuring cal.temp.
or
entry
Buffer 1 pH
Measuring buffer 1
Buffer 2 pH
Measuring buffer 2
etc.
Data output
After the start, the activate pulse is output.
The start delay time is waited off.
Then, the calibration temperature is measured.
It no T sensor is connected, you enter the temperature
manually. Store the value with <ENTER> or continue with
<START> (T is not stored).
Enter the nominal value of the first buffer.
Store the value with <ENTER> or continue with
<START> (the value is not stored).
The first buffer is measured.
Enter the nominal value of the second buffer.
Store the value with <ENTER> or continue with
<START> (the value is not stored).
Leave the calibration with <STOP>
The second buffer is measured.
As many buffers appear as have been specified in the
<PARAM> key (up to 9).
You may leave the calibration any time with <STOP>.
Data are output.
The calibration data are available for calculation:
C46: pHas
C47: Electrode slope
Calibration data can be viewed at any time with the
<CAL.DATA> key and the calibration report printed out
using the key sequence
<PRINT><CAL.DATA><ENTER>.
⇒ 1 point calibration.
719 S Titrino
38
2.8 Result calculations
2.8 Result calculations
Formula entry, key <DEF>
DEF
(
2
def
>formula
>formula
RS?
RS1=
RS1=EP1*C01/C00
Key <DEF> contains various inquiries for result
calculations and data output. The data of this key are
method specific and they are stored in the method
memory together with the method.
formula:
Formulas for result calculations.
The display texts of the Titrino are shown to the left.
The values are the default values.
Input of formulas
Enter formula number (1...9)
You can calculate up to 9 results per method.
Enter a number 1...9.
Input of formula
Example:
RS1=EP1
Enter formula by means of 3rd functions of keyboard.
Here you will find operands, mathematical operations
and parentheses. Operands require a number as an
identification. You can use the following operands:
EPX: EP's. X = 1...9
RSX: Results which have already been calculated with
CXX: Calculation constants. XX = 00...79.
Rules:
• Calculation operations are performed in the
algebraic hierarchy: ∗ and / before + and -.
• Store formula with <ENTER>.
• Calculation quantities and operands can be deleted
with <CLEAR> one by one.
• To delete a complete formula press <CLEAR>
repeatedly until only RSX remains in the display.
Confirm with <ENTER>.
If a formula is stored with <ENTER>, result text,
number of decimals and result unit will be requested:
∗C01/C00
previous formulas. X = 1...9.
719 S Titrino
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2.8. Result calculations
RS1 text RS1
RS1 decimal places 2
RS1 unit: %
Text for result output (up to 8 characters)
Text input see page 8.
Number of decimal places for result (0...5)
Selection of result unit (%, ppm, g/L, mg/mL, mol/L,
mmol/L, g, mg, mL, mg/pc, s, mL/min, no unit or up to
6 characters).
Enter next formula, e.g. for RS2.
Meaning of the calculation variables CXX:
C00 Sample size, see page 50.
C01...C19 Method specific operands, see below. They are stored with the method
in the method memory.
C21...C23 Sample specific operands, see page 50ff.
C30...C39 Common variables.
C40 Initial measured value of the sample, last measured value in MEAS.
C41 End volume.
C42 Determination time.
C43 Volume drift for SET with conditioning.
C44 Temperature.
C45 Dispensed start volume.
C46 Asymmetry-pH (calibration).
C47 Electrode slope (calibration).
Input method specific operands C01...C19, key <C-FMLA>
C-FMLA
C
1
With <C-FMLA> the operands C01...C19 can be put
in. For the calculation, the operands are used, which
were introduced in the formula.
The inputs method specific and are store in method
memory.
The calculation report can be printed with the key sequence:
<PRINT><SELECT>(press key repeatedly until "calc" appears in the display)<ENTER>
719 S Titrino
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2.9 Statistics calculation
2.9 Statistics calculation
Mean values, absolute and relative standard deviations are calculated.
DEF
(
2
def
>mean
>mean
MN1=RS1
MN2=
:
MN9=
>statistics
mean n= 2
res.tab: original
delete n= 1
PARAM
status: OFF
The <DEF> key is used to allocate results for statistics
calculation.
The entries are specific to the method and are stored in
the method memory.
mean:
Assigns values for statistics calculations.
The display texts of the Titrino are shown to the left.
The values are the default values.
Allocations for statistics calculations
Number n of single values for statistics calculation.
(1...9)
You can perform statistics calculation using up to 9
results (RSX), endpoints (EPX) or variables (CXX). For
MN1, the default value RS1 is entered.
Delete allocation with <CLEAR> + <ENTER>
Each mode has an inquiry group ">statistics" in key
<PARAM>
Statistics calculation
Status of statistics calculation (OFF, ON)
If the statistics calculation is switched off, the following
inquiries regarding the statistics do not appear.
Mean value calculation from n single results (2...20)
Result table (original, delete n, delete all)
"original": The original table is used. Deleted
individual results are again incorporated in
the evaluation.
"delete n": Deletion of single results with the index n.
"delete all": The entire table is deleted.
Delete data from sample number n (1...20)
The deleted result is removed from the statistics
calculation. )
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2.9. Statistics calculation
How do you obtain statistics calculations?
1) Enter the allocations for the statistics calculation, see page 41.
2) Switch on the statistics calculations: Either with <STATISTICS> or set the status under
<PARAM>, "> statistics" to "ON". The "Statistics" LED is on. Storing a method in the
method memory, the status of the statistics calculation is retained.
3) Change the number of the individual values n under "mean n", if necessary.
4) Perform at least 2 titrations. The statistics calculation are constantly updated and
printed. The values are printed in the short and full result report.
5) The statistics report can be printed with <PRINT><STATISTICS><ENTER>.
Rules:
• Recalculated results are incorporated in the statistics calculation.
• If a result of a particular titration can not be calculated, no results for this determination
are incorporated in the statistics calculation. However, the sample counter is still
operative, i.e. the statistics calculation start afresh when the number of required
individual determinations has been performed.
• If the statistics are switched off ("Statistics" LED no longer on), results are no longer
entered in the statistics table. But the table remains unchanged. When the statistics
are switched on again, you can immediately continue working.
• If you delete results, all results of the determination with index n are removed from the
statistics evaluation.
• On method change, the old statistics table is cleared and the statistics instructions of
the new method followed.
• Old results in the statistics table can be deleted with "delete all" (<PARAM>,
">statistics", "res.tab:").
719 S Titrino
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2.10 Common variables
2.10 Common variables
Common variables are used for:
• Determination of a titer with a method. This titer is stored permanently as C3X. The
operand C3X can be used in various other methods like any other operand.
• Determination of a blank values with a method . Using this blank value in various other
methods.
• Determination of a result with method. Reconciliation of this result in various other
methods.
You may view the values of the common variables with <CONFIG>.
DEF
2
def
>common variables
>common variables
C30=
C31
:
C39=
(
With <DEF>, results (RSX), endpoints (EPX), variables
(CXX) or mean values (MNX) can be allocated as
common variables.
The entries are specific to the method and are stored in
the method memory.
common variables:
Assigns values as common variables.
The display texts of the Titrino are shown to the left.
The values are the default values.
Allocation for common variables
Common variable C30...C39 (RSX, EPX, CXX, MNX)
Results (RSX), endpoints (EPX), variables (CXX), and
means (MNX) can be assigned.
The values of the common variables remain in force for
all methods until they are overwritten or deleted. They
can be viewed under the <CONFIG> key.
Delete allocation with <CLEAR>+<ENTER>.
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2.11. Data output
2.11 Data output
Reports for the output at the end of a determination
DEF
(
2
def
>report
>report
report:
report:full
Meaning of the report blocks:
full Full result report with raw results, calculations and statistics.
short Short result report with calculations and statistics.
param Parameter report.
calc Report with formulas and operands.
calib Calibration data.
ff Form feed on printer.
Original reports which are put out automatically at the end of the titration can be printed
with recalculated values at any time. Key sequence:
<PRINT><REPORTS><ENTER>.
Original reports have double dashes ==== at the end, whereas recalculations are
marked by single dashes ----.
Report outputs can be stopped with <QUIT>.
With <DEF>, the report sequence at the end of the
determination is defined.
The entries are specific to the method and are stored in
the method memory.
report:
Definition of report blocks to be printed automatically at
the end of the determination.
The display texts of the Titrino are shown to the left.
The values are the default values.
Report sequence: full, short, param, calc, calib, ff
Select a block with <SELECT>. If you require more
than one report block, set a ";" as a delimiter between
the blocks.
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2.11 Data output
Example of reports:
'fr
719 S Titrino 18200 719.0021
date 2002-03-13 time 17:34 3
pHc(init) 6.29 SET pH Acid
EP1 0.0628 ml 4.26
m value 5.02 mmol/l
mean(2) +/s s/%
m value 5.04 0.028 mmol/l 0.56
device label Titr 1 sign:
==============
Full result report
Device label (if there is a designation, see page
22) and manual signature
Additional possibilities for report outputs
In addition to the reports which are printed at the end of the titration, various other reports
can be put out. There are 2 possibilities to select the reports:
1) <PRINT><SELECT><ENTER> Cursor is pressed repeatedly until the desired report
appears in the display.
2) <PRINT><keyX><ENTER> key X is the key under which the appropriate data
are entered.
List of reports:
Report Display with
<Key X>
<PRINT><SELECT>
Configuration report configuration CONFIG
Parameter report parameters PARAM
Current sample data smpl data SMPL DATA
Statistics report with the individual results statistics STATISTICS
All sample data from the silo memory silo SILO
Calibration data cal.data CAL.DATA
Operands C01...C19 C-fmla C-FMLA
Contents of the <DEF> key def DEF
Contents of the method memory with details of
the memory requirements of the individual
user methods USER
METH
methods and the remaining bytes
Calculation report with formulas and operands calc
Full result report full
Short result report short
All reports all
Complete report sequence of the last
REPORTS
determination, as defined under the <DEF> key
in the method
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2.11. Data output
Result display without printer
Results can also be viewed in the display. With <SELECT> key, the appropriate section
(EP's, results, etc.) can be selected and <ENTER> can be used to view the individual
EP's, results etc.
<SELECT>: display <ENTER>: display Remarks
>display results RS1...RS9 calculated results
>display EP's EP1, EP2 EP's
>dispaly mean m(RS1)...m(RS9),n mean values and number of
individual values
>display std.deviation s(RS1)...d(RS2) absolute standard deviation
>display messages various (error) messages
>display meas.val C40 with MEAS
>display calibration pH(as) and slope with CAL
719 S Titrino
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2.12 Method memory, keys <USER METH>
2.12 Method memory, keys <USER METH>
USER METH
3
user methods
>recall method
>recall method
method name:
>store method
method name:
>delete method
method name:
)
Management of the internal method memory with key
<USER METH>.
Method identifications can be entered directly or
selected with the <SELECT> key.
recall method:
Loads a method from the internal method memory into
the working memory.
store method:
Stores the method which is in the working memory in
the internal method memory.
delete method:
Deletes a method from the internal method memory.
The display texts of the Titrino are shown to the left.
The values are the default values.
Recall method
Recall method from the internal method memory to the
working memory (input of method name, which is
included in the memory).
If a method identification is entered which is not found
in the method memory, the selected value blinks.
Store method
Store method from the working memory to the internal
method memory (up to 8 ASCII characters).
If a method with an identical name is already stored,
you are requested if you wish to overwrite the old
method. With <ENTER> it is overwritten, with <QUIT>
you return to the entry.
Delete method
Delete method from the internal method memory (input
of method name, which is included in the memory).
For safety, you are again asked if you really wish to
delete the method. With <ENTER> it is deleted, with
<QUIT> you return to the working memory.
If a method name is entered which is not found in the
method memory, the selected value blinks.
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2.12. Method memory, keys <USER METH>
The contents of the method memory can be printed with the key sequence
<PRINT><USER METH><ENTER>
Document your methods (e.g. parameter report, def. report and C-fmla report)!
With a PC and the 6.6008.XXX Vesuv program, you should carry out a complete method
backup from time to time.
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2.13 Calibration data, key <CAL.DATA>
2.13 Calibration data, key <CAL.DATA>
cal. data
>input 1
CAL.DATA
5
*
With <CAL.DATA>, the current pH calibration data of
all measuring inputs can be seen. Calibration data are
entered here automatically on completion of a
calibration.
input 1:
Calibration data for measuring input 1.
Identical for input 2 and diff.
The display texts of the Titrino are shown to the left.
The values are the default values.
>input 1
pH(as) 7.00
slope 1.000
temp 25.0 °C
cal.date
electr.id
pH calibration data for measuring input 1
Asymmetry pH (0...±20.00)
Entered automatically after a calibration with measuring
input 1.
Slope (0...±9.999)
Entered automatically after a calibration with measuring
input 1.
Calibration temperature (-20.0...120.0 °C)
Will be printed automatically after calibration with
measuring input 1.
Date of last calibration (no entry possible)
If the calibration data "pH(as)" and/or "slope" are
changed by a manual entry, the date entry is deleted.
Electrode identification of calibrated electrodes (no
entry possible)
If an electrode identification has been entered in the
CAL mode, it is automatically entered after the
calibration.
The calibration report with the current measuring input data can be printed at any time
with the key sequence
<PRINT><CAL.DATA><ENTER>.
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2.14. Current sample data, key <SMPL DATA>
2.14 Current sample data, key <SMPL DATA>
SMPL
DATA
smpl data
>id#1 oer C21
smpl data
id#1 or C21
id#2 or C22
id#3 or C23
smpl size 1.0 g
smpl unit: g
The key <SMPL DATA> can be used to enter the
current sample data. The contents of this key change
when the silo memory is switched on, see page 52.
Instead of entering the current sample data with
<SMPL DATA>, you can request these data
automatically after start of determinations.
Configuration: <PARAM>, ">preselections".
Current sample data can be entered live. For working
with the silo memory see page 51.
id#1...3 or C21...C23, sample identifications:
The sample identifications can also be used as sample
specific calculation variables C21...C23.
smpl size:
Sample size.
Entry using keypad or via balance, see page 120.
smpl unit:
Unit of the sample size.
The display texts of the Titrino are shown to the left.
The values are the default values.
Sample data
Sample identification 1...3 or sample specific operand
C21...C23 (up to 8 characters).
Sample identifications or sample specific operands
can be entered using the keypad, via a balance with a
special input device or via barcode reader.
Sample size (6-digit number: ±X.XXXXX)
Entry using keypad, via balance or via barcode reader.
Unit of sample size (g, mg, mL, µL, pc, no unit or up to
5 characters)
Select unit with <SELECT>.
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2.15 Silo memory for sample data
2.15 Silo memory for sample data
In the silo memory or pushup storage, sample data (method, identifications and smpl
size) can be stored. This is useful, e.g. when you work with Sample Changers and other
automatic sample addition systems.
SILO
-
9
If the silo memory is switched on, sample data are routed to the last free line of the silo
memory. If no new value is put in, the value from the last line is automatically copied. In
this manner, data can be simply taken over when they remain unchanged.
When the instrument is started, the sample data are fetched from the next silo line.
Organisation of the silo memory
Silo memory contains 35 lines.
Next free line is 36
1 silo line needs between 18 and 90 bytes memory capacity.
99
1
2
Press the key <SILO> for working with the silo
memory. The status LED "silo" is on when the silo
memory is switched on. The silo memory works by the
FIFO principle (First In, First Out).
1
99
35
2
35
6 of the 35 lines have been
processed. Free lines from 36 to 99
and from 1 to 6.
6
Filling the silo memory with a connected balance
If the silo memory is filled from the balance, you must ensure that there is sufficient space
in the silo memory for the required number of silo lines! The number of free bytes is given
in the user memory report.
When the sample data are entered from a balance, the transfer of the sample size is
taken as the end of the silo line. You should not send data from the balance and edit the
silo memory at the same time.
For mixed operation, manual input of identifications and sample sizes from a balance, the
values from the balance are sent into the line in which editing just takes place. Confirmed
the data with <ENTER> at the Titrino.
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2.15. Silo memory for sample data
Key <SMPL DATA> with the silo memory switched on
Sample data can be entered into the silo memory with
SMPL
DATA
smpl data
>edit silo lines
key <SMPL DATA>.
edit silo lines:
Entering sample data into the silo memory.
delete silo lines:
Deletes single silo lines.
delete all silo lines:
Deletes the whole silo memory.
The display texts of the Titrino are shown to the left.
The values are the default values.
>edit silo lines
silo line 1
method:
id#1 or C21
id#2 or C22
id#3 or C23
smpl size 1.0 g
smpl unit: g
Input for silo memory
Silo line (1...99)
The next free line is displayed automatically. Lines
already occupied can be corrected.
Method with which the sample is processed (method
name from the method memory)
If no method name has been entered, the sample is
processed with the method in the working memory.
Selection of the method with <SELECT>.
Sample identification 1..3 or sample specific calculation
variables C21...C23 (up to 8 characters)
Sample size (6-digit number: ±X.XXXXX)
The method specific limits are tested on result
calculation.
Unit of sample size (g, mg, mL, µL, pc, no unit or up to
5 characters)
Select unit with <SELECT>.
>delete silo lines
delete line n OFF
Delete individual silo lines
Line number of the line to be deleted(1...99, OFF)
<CLEAR> sets "OFF".
Deleted lines remain in the silo memory. Access is
blocked during the processing. To show that a line has
been deleted, they are marked with "∗ ". The symbol ∗
indicates that the line has been deleted.
Deleted lines can be reactivated if the appropriate line
is re-edited.
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2.15 Silo memory for sample data
>delete all silo lines
delete all: no
Delete all silo lines
Confirmation (yes, no)
When all silo lines are deleted, the silo is completely
empty: The line numbering starts again with 1.
cycle lines: OFF
With "ON", worked off silo lines will be copied to the
highest line of the silo memory (ON, OFF)
Data cycling "on" is useful if you constantly have to
process the same sample data. In such a case, the
processed silo line is not deleted, but copied to the
next free line, see below. If you work in this mode, you
should not enter any new
determinations.
Silo memory with data cycling "on"
silo lines during the
99
2
1
99
2
1
6
Silo memory contains 35 lines.
Next free line is 36.
35
41
6 of 35 lines have been processed.
The processed lines have been
35
copied to the end of the silo
memory: your silo is filled up to line
41.
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3.1 General rules
3 Operation via RS232 Interface
3.1 General rules
The Titrino has an extensive remote control facility that allows full control of
the Titrino via the RS 232 interface, i.e. the Titrino can receive data from an
external controller or send data to an external controller. CR and LF are used
as terminators for the data transfer. The Titrino sends 2xCR and LF as termination of a data block,
LF as terminators. The controller terminates its commands with CR and LF. If
more than one command per line is sent by the controller, “;” is used as a
separator between the individual commands.
The data are grouped logically and easy to understand. Thus e.g., for the selection of the dialog language, the following must be sent
whereby it is sufficient to only transmit the boldface characters, thus:
The quantities of the commands above are:
Config configuration data
Aux auxiliaries, various data
Language setting the dialog language
The data are hierarchically structured (tree form). The quantities that occur in
this tree are called objects in the following. The dialog language is an object
which can be called up with the
command.
If one is in the desired location in the tree, the value of the object can be queried.
The query command $Q initiates the issuing of the value on the instrument
and the value emission is triggered. Entries which start with $, trigger something. They are thus called triggers.
Values of objects can not only be queried, they can also be modified. Values
are always entered in quotes, for example:
&Config.Aux.Language "english"
to differentiate between a data line which has CR and
&Config.Aux.Language "english"
&C.A.L "english"
&Config.Aux.Language
&Config.Aux.Language $Q Q means Query
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3.1. General rules
A
3.1.1 Call up of objects
An excerpt from the object tree is represented below:
3rd node
2nd node
1st node
0st node
Language Prog
ux
Config
RSSet
&
Root
Rules Example
The root of the tree is designated by &.
The branches (levels) of a tree are marked with
a dot (.) when calling up an object.
When calling up an object, it is sufficient to give
only as many letters as necessary to uniquely
assign the object. If the call is not unequivocal,
Calling up the dialog language
&Config.Aux.Language or &C.A.L
the first object in the series will be recognized.
Mode
Upper- or lowercase letters may be used. &C.A.L or &c.a.l
An object can be assigned a value. Values are
signified at the beginning and end by quotes (").
They may contain up to 24 ASCII characters.
Numerical values can contain up to 6 digits, a
negative sign, and a decimal point. Numbers
with more than 6 characters are not accepted;
more than 4 decimal places are rounded off. For
numbers <1, it is necessary to enter leading
Entering the dialog language:
&C.A.L"english"
correct entry of numbers:
"0.1"
incorrect entry of numbers
"1,5" or "+3" or ".1"
zeros.
The current object remains until a new object is
called.
New objects can be addressed relative to the
old object:
entry of another dialog language:
"deutsch"
From the root to node 'Aux': &C.A
Forward from node 'Aux' to 'Prog': .P
A preceding dot leads forwards to the next level
in the tree.
More than one preceding dot leads one level
backwards in the tree. n node backwards re-
quire n+1 preceding dots.
If you must jump back to the root, enter a preceding &.
Jump from node 'Prog' to node 'Aux' and select
a new object 'Language' at this level: ..L
Change from node 'Language' via the root to
node 'Mode': &M
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3.1 General rules
3.1.2 Triggers
Triggers initiate an action on the Titrino, for example, starting a process or
sending data. Triggers are marked by the introductory symbol $.
The following triggers are possible:
$G Go Starts processes, for ex. starting the mode run or setting the RS 232 interface
parameters
$S Stop Stops processes
$H Hold Holds processes
$C Continue Continues processes after Hold
$Q Query Queries all information from the current node in the tree forward up to and
including the values
$Q.P Path Queries the path from the root of the tree up to the current node
$Q.H Highest Queries the number of son nodes of the current node
Index
$Q.N"i" Name Queries the name of the son node with index i, i = 1 - n
$D Detail-Info Queries the detailed status information
$U qUit Aborts the data flow of the instrument, for example, after $Q
The triggers $G and $S are linked to particular objects, see the summary table
page 63ff.
All other triggers can be used at any time and at all locations on the object
tree.
Examples
Querying the value of the baud rate: &Config.RSSet.Baud $Q
Querying all values of the node "RSSet": &Config.RSSet $Q
Querying the path of the node "RSSet": &Config.RSSet $Q.P
Start mode: &Mode $G
Querying the detailed status: $D
:
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3.1. General rules
3.1.3 Status messages
In order to have an efficient control by an external control device, it must also
be possible to query status conditions; they provide information on the status
of the Titrino. The trigger $D initiates output of the status. Status messages
consist of the global status, the detailed status and eventual error messages,
e.g. $S.Mode.SET;E26. The global status informs on the activity of the process, while the detailed status conditions show the exact activity within the
process.
The following global status conditions are possible:
$G Go: The Titrino is executing the last command.
$H Hold: The Titrino has been held ($H, key <meas/hold> or by an error which effects
the hold status)
$C Continue: The Titrino has been restarted actively after hold
$R Ready: The Titrino has executed the last command and is ready
$S Stop: A process has been aborted in an "unnatural manner". e.g. stopped or aborted
because there was an error.
Detailed status conditions
Status conditions of the global $G:
$G .Mode.SET .Inac: Instrument at the beginning or at the end of a titration.
.Req .Id1: Instrument in the SET mode, requesting Id1 after start.
.Id2: Instrument in the SET mode, requesting Id2 after start.
.Id3: Instrument in the SET mode, requesting Id3 after start.
.Smpl: Instrument in the SET mode, requesting sample size after start.
.Unit: Instrument in the SET mode, requesting unit of sample size after start.
.Start: Instrument in the SET mode, processing the start conditions.
.SET1: Instrument in the SET mode, titrating to the first endpoint.
.SET2: Instrument in the SET mode, titrating to the second endpoint.
.Cond.Ok: Instrument in the SET, conditioning, endpoint reached (after the first
startup from the standby mode).
.Cond.Prog: Instrument in the SET mode, conditioning, endpoint not reached
(Conditioning progressing).
$G .Mode.MEAS .Inac: Instrument at the beginning or at the end of a titration.
.Req .Id1: Instrument in the MEAS mode, requesting Id1 after start.
.Id2: Instrument in the MEAS mode, requesting Id2 after start.
.Id3: Instrument in the MEAS mode, requesting Id3 after start.
.Smpl: Instrument in the MEAS mode, requesting sample size after start.
.Unit: Instrument in the MEAS mode, requesting unit of sample size after start.
.Meas: Instrument in the MEAS mode, measuring.
$G .Mode.CAL .Inac: Instrument at the beginning or at the end of a calibration
.Req.Temp: Instrument in the CAL mode, requesting calibration temperature.
.Meas.Temp: Instrument in the CAL mode, measuring calibration temperature.
.Req.Buf1: Instrument in the CAL mode, requesting pH of buffer 1.
.Meas.Buf1: Instrument in the CAL mode, measures buffer 1.
.Req.Buf2: Instrument in the CAL mode, requesting pH of buffer 2.
.Meas.Buf2: Instrument in the CAL mode, measures buffer 2.
etc.
$G .Assembly.Bur .Fill: Buret in filling process
.ModeDis: Buret in DIS mode
Status conditions of the global $H:
The status message of the action which has been held appears.
If the process is held because a monitored limit has been violated, its status
message is $H.Mode.XXX.XXX.
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3.1 General rules
Status conditions of the global $C:
The status conditions of the global $C are identical with the ones of the global
status $G. They appear when the process has been restarted actively from the
status "Hold" ($C, key <meas/hold> or automatically after elimination of an
error).
Status conditions of the global $R:
$R .Mode.XXXX.QuickMeas: Quick manual measurement from the initial status in mode XXXX.
$R .Mode.SET .Inac: Instrument in the SET mode, inactive.
.Cond.Ok: Instrument in the SET mode, conditioning, endpoint reached.
.Cond.Prog: Instrument in the SET mode, conditioning, endpoint not reached.
$R .Mode.MEAS .Inac: Instrument in the MEAS mode, inactive.
$R .Mode.CAL .Inac: Instrument in the CAL mode, inactive.
$R .Assembly.Bur.ModeDis: Buret in the DIS mode, inactive.
Status conditions of the global $S:
$S .Mode.XXXX.QuickMeas: Quick manual measurement from the initial status in mode XXXX.
The instrument gives the status from which it has been stopped. The detailed
status information is therefore identical to for the global status $G.
Violation of monitored limits with action "end" give the status message
$S.Mode.XXX.Inac;EYYY.
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3.1. General rules
3.1.4 Error messages
Error messages are added to the status messages and separated from them
by the sign ";".
E20 Check exchange unit.
Exit: Mount Exchange Unit (properly) or &m $S.
E21 Check electrode, short circuit.
Exit: Rectify fault or &m $S.
E22 Check electrode, break.
Exit: Rectify fault or &m $S.
E23 Division by zero.
Exit: The error message disappears on next startup or on recalculation.
E26 Manual stop.
Exit: The error message disappears on next startup.
E27 Stop V reached in SET.
Exit: The error message disappears on next startup.
E28 Wrong object call up
Exit: Send correct path for object. Start path at root.
E29 Wrong value or no value allowed.
Exit: Send correct value or call up new object.
E30 Wrong trigger, this trigger is not allowed or carrying-out of action not
possible.
Exit: Send correct trigger (exception: $D) or call up new object.
E31 Command is not possible in active status. Repeat command in inactive
status.
Exit: Send new command.
E32 Command is not possible during titration. Repeat command during the
conditioning phase or in inactive status.
Exit: Send new command.
E33 Value has been corrected automatically.
Exit: Send new command.
E34 Instrument at the end of the titration and sample data is edited; the instrument
at rest or editing during filling.
Exit: &m $S.
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3.1 General rules
RS receive errors:
E36 Parity
Exit: <QUIT> and ensure settings of appropriate parameters at
both devices are the same.
E37 Stop Bit
Exit: <QUIT> and ensure settings of appropriate parameters at
both devices are the same.
E38 Overrun error. At least 1 character could not be read.
Exit: <QUIT>
E39 The internal working-off buffer of the Titrino is full (>82
characters).
Exit: <QUIT>
RS send errors:
E40 DSR=OFF No proper handshake for more than 1 s.
Exit: <QUIT> Is the receiver switched on and ready to receive?
E41 DCD=ON No proper handshake for more than 1 s.
Exit: <QUIT> Is the receiver switched on and ready to receive?
E42 CTS=OFF No proper handshake for more than 1 s.
Exit: <QUIT> Is the receiver switched on and ready to receive?
E43 The transmission of the Titrino has been interrupted with XOFF for
at least 6 s.
Exit: Send XON or <QUIT>
E44 The RS interface parameters are no longer the same for both
devices. Reset.
E45 The receive buffer of the Titrino contains an incomplete command
(L
missing). Sending from the Titrino is therefore blocked.
F
Exit: Send L
or <QUIT>.
F
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3.1. General rules
E120 Overrange of the primary measured value (pH, U, Ipol, Upol or T
with MEAS T). The secondary measured value (temperature) may
be instable as well.
Exit: Correct error or &m $S.
E123 Missing EP for calculation.
Exit: The error message disappears on next startup or on
recalculation.
E128 No new mean.
Exit: The error message disappears on next startup or on
recalculation.
E129 No new common variable, old value remains.
Exit: The error message disappears on next startup or on
recalculation.
E130 Wrong sample. For SET with preset titration direction the first
measured value lies behind the endpoint.
Exit: The error message disappears on next startup.
E131 No EP set for SET.
Exit: The error message disappears on next startup.
E132 Silo empty and it has been started with open silo or empty silo has
been opened.
Exit: Send a silo entry.
E133 Silo full.
Exit: Send new command.
E134 No method. A method, which is required from the silo memory, does not
exist.
Exit: The error message disappears on next startup.
E135 Check temp.sensor in MEAS T.
Exit: Correct error or &m $S.
E136 Same buffer in CAL. Measured value of the second buffer differs less than 6
mV from the measured value of the first buffer.
Exit: Correct error or &m $S.
E137 XXX Bytes are missing so that the method, the silo line could not be stored.
Exit: Send new command.
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3.2 Remote control commands
3.2 Remote control commands
3.2.1 Overview
The internal object tree can be divided into the following branches:
& Root
├ Mode Method parameters
├ UserMeth Administration of the internal user-memory for methods
├ Config Instrument configuration
├ SmplData Sample specific data
├ Info Current Data
├ Assembly Component data
├ Setup Setting the operating mode
└ Diagnose Diagnostics program
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3.2. Remote control commands
&Mode
Object Description Input range Reference
& Root
├ Mode Mode $G, $S, $H, $C 3.2.2.1.
: ├ .QuickMeas Rapid meas. in basic mode $G, $S 3.2.2.2.
├ .Select Mode selection SET, MEAS,CAL 3.2.2.3.
├ .SETQuantity Measured quantity for SET pH, U, Ipol, Upol ditto
├ .MEASQuantity Measured quantity for MEAS pH, U, Ipol, Upol, T ditto
├ .Name Name of current method read only/read+write 3.2.2.4.
├ .Parameter* Parameter of current mode, page 65ff
│
├ .Def Definitions for data output
│ ├ .Formulas Calculation formulas
│ │ ├ .1 for result 1
│ │ │ ├ .Formula Calculation formula special 3.2.2.5.
│ │ │ ├ .TextRS Text for result output up to 8 ASCII char ditto
│ │ │ ├ .Decimal Number of decimal places 0...2...5 ditto
│ │ │ ├ .Unit Unit for result output up to 6 ASCII char ditto
│ │ │ : up to 9 results
│ ├ .ComVar Assignment of common variables
│ │ ├ .C30 for C30 RSX,EPX,CXX,MNX 3.2.2.6.
│ │ ├ up to C39
│ ├ .Report Reports at the end of determination
│ │ ├ .Assign Assignment depends on mode 3.2.2.7.
│ ├ .Mean Assignment for mean calculation
│ │ ├ .1 MN1
│ │ │ ├ .Assign Input of variable RSX, EPX, CXX 3.2.2.8.
│ │ │ up to 9
├ .CFmla Calculation constants
│ ├ .1 Calculation constant C01
│ │ ├ .Value Input of value 0...±999 999 3.2.2.9.
│ ├ up to C19
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3.2 Remote control commands
*Parameter Tree part "Parameters for SET"
├ .SET1 Control parameters for EP1
│ ├ .EP Endpoint 1 depends on meas.quant. 3.2.2.10.
│ ├ .UnitEp Unit of endpoint read only ditto
│ ├ .Dyn Dynamics depends on meas.quant. 3.2.2.11.
│ ├ .UnitDyn Unit of dynamics read only ditto
│ ├ .MaxRate Maximum dosing rate 0.01...10...150, max. ditto
│ ├ .MinRate Minimum dosing rate 0.01...25.0...9999 ditto
│ ├ .Stop Titration stop
│ │ ├ .Type Type of stop criterion drift, time 3.2.2.12.
│ │ ├ .Drift Stop drift 1...20...999 ditto
│ │ ├ .Time Switch-off delay time 0...10...999, inf ditto
│ │ ├ .StopT Stop time 0...999 999, OFF ditto
├ .SET2 Control parameters for EP2, as for EP1
├ .TitrPara Titration parameters
│ ├ .Direction Titration direction +, -, auto 3.2.2.13.
│ ├ .XPause Pause 1 0…999 999 3.2.2.14.
│ ├ .Start V Start volume
│ │ ├ .Type Type of start volume abs., rel., OFF 3.2.2.15.
│ │ ├ .V Volume for absolute start volume 0...999.99 ditto
│ │ ├ .Factor Factor for relative start volume 0...±999 999 ditto
│ │ ├ .Rate Dispensing rate for start volume 0.01...150.0, max. ditto
│ ├ .Pause Pause 2 0...999 999 3.2.2.16.
│ ├ .ExtrT Extraction time 0...999 999 3.2.2.17.
│ ├ .MeasInput Measuring Input 1, 2, diff. 3.2.2.18.
│ ├ .Ipol Polarization current 0...1...±127 ditto
│ ├ .Upol Polarization voltage 0...400...±1270 ditto
│ ├ .PolElectrTest Test for polarized electrodes ON, OFF ditto
│ ├ .Temp Titration temperature -170.0...25.0...500.0 3.2.2.19.
│
.StopCond Stop conditions
├
│ ├ .VStop Stop volume
│ │ ├ .Type Type of stop volume abs., rel., OFF 3.2.2.20.
│ │ ├ .V Volume for absolute stop volume 0...99.99...9999.99 ditto
│ │ ├ .Factor Factor for relative stop volume 0...±999 999 ditto
│ ├ .FillRate Filling rate 0.01...150.0, max. 3.2.2.21.
│
.Statistics Statistics
├
│ ├ .Status Status of statistics calculation ON, OFF 3.2.2.22.
│ ├ .MeanN No. of individual determinations 2...20 ditto
│ ├ .ResTab Result table
│ │ ├ .Select original,delete n,delete all ditto
│ │ ├ .DelN Deletion of individual results 1...20 ditto
│
.Presel Preselections
├
│ ├ .Cond Conditioning ON, OFF 3.2.2.23.
│ ├ .DriftDisp Display of drift during cond. ON, OFF ditto
│ ├ .DCor Drift Correction
│ │ ├ .Type Drift type auto, man., OFF 3.2.2.24.
│ │ ├ .Value Value for manual drift correction 0.0…99.9 ditto
│ ├ .IReq Request of Id's after start id1, id1&2, all, OFF 3.2.2.25.
│ ├ .SReq Request of smpl size after start value, unit, all, OFF ditto
│ ├ .ActPulse Output of a pulse first, all, cond., OFF 3.2.2.26.
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3.2. Remote control commands
*Parameter Tree part "Parameters for MEAS"
├ .Measuring Measuring parameters
│ ├ .SignalDrift Drift for meas.value acquisition depends on meas.quant. 3.2.2.27.
│ ├ .UnitSigDrift Unit of measured value drift read only ditto
│ ├ .EquTime Equilibrium time 0...9999, OFF ditto
│ ├ .MeasInput Measuring input 1, 2, diff. 3.2.2.28.
│ ├ .Ipol Polarization current 0...1...±127 ditto
│ ├ .Upol Polarization voltage 0...400...±1270 ditto
│ ├ .PolElectrTest Test for polarized electrodes ON, OFF ditto
│ ├ .Temp Titration temperature -170.0...25.0...500.0 3.2.2.29.
│ │
.Statistics Statistics
├
│ ├ .Status Status of statistics calculation ON, OFF 3.2.2.22.
│ ├ .MeanN No. of individual determinations 2...20 ditto
│ ├ .ResTab Result table
│ │ ├ .Select original,delete n,delete all ditto
│ │ ├ .DelN Deletion of individual results 1...20 ditto
│ │
.Presel Preselections
├
│ ├ .IReq Request of Id's after start id1, id1&2, all, OFF 3.2.2.24.
│ ├ .SReq Request of sample size after start value, unit, all, OFF ditto
│ ├ .ActPulse Output of a pulse ON, OFF 3.2.2.25.
*Parameter Tree part "Parameters for CAL"
├ .Calibration Calibration parameters
│ ├ .MeasInput Measuring input 1, 2, diff. 3.2.2.30.
│ ├ .CalTemp Calibration temperature -20.0...25.0...120.0 3.2.2.31.
│ ├ .Buffer
│ │ ├ .1
│ │ │ ├ .Value pH value of buffer 1 0...7.00...±20.00 3.2.2.32.
│ │ ├ .2
│ │ │ ├ .Value pH value of buffer 2 0...4.00...±20.00, OFF ditto
│ │ ├ : up to 9 buffers
│ ├ .SignalDrift Drift for meas.value acquisition 0.5…4.00…999, OFF 3.2.2.33.
│ ├ .EquTime Equilibrium time 0...110...9999, OFF ditto
│ ├ .ElectrodeId Electrode identification 8 ASCII char. 3.2.2.34.
│ ├ .SmplChanger Calibration on a Titrino ON, OFF 3.2.2.35.
│ ├ .ActPulse Output of a pulse first, all, OFF 3.2.2.36.
│ │
.Statistics Statistics
├
│ ├ .Status Status of statistics calculation ON, OFF 3.2.2.22.
│ ├ .MeanN No.of individual determinations 2...20 ditto
│ ├ .ResTab Result table
│ │ ├ .Select original,delete n,delete all ditto
│ │ ├ .DelN Deletion of individual results 1...20 ditto
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3.2 Remote control commands
&UserMeth
Object Description Input range Reference
& Root
:
├ UserMeth Method memory
: ├ .FreeMemory Memory available read only 3.2.2.37.
├ .Recall Load method $G 3.2.2.38.
│ ├ .Name Method name 8 ASCII characters ditto
├ .Store Save method $G ditto
│ ├ .Name Method name 8 ASCII characters ditto
├ .Delete Delete method $G ditto
│ ├ .Name Method name 8 ASCII characters ditto
├ .DelAll Delete all methods $G ditto
├ .List List of methods
│ ├ .1 Method 1
│ │ ├ .Name Method name read only 3.2.2.39.
│ │ ├ .Mode Mode read only ditto
│ │ ├ .Quantity Measured quantity read only ditto
│ │ ├ .Bytes Method size in bytes read only ditto
│ │ ├ .Checksum Checksum of method read only ditto
├ .2 for each method
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3.2. Remote control commands
&Config
Object Description Input range Reference
& Root
:
├ Config Instrument configuration
├ .PeriphUnit Selection of peripheral units
│ ├ .CharSet External printer Epson,Seiko,Citizen
│ │ IBM,HP 3.2.2.40.
│ ├ .Balance Selection of balance Sartorius,Mettler,Mettler AT
│ │ AND,Precisa 3.2.2.41.
│ ├ .Plot Selection of plot at analog output U, dU/dt, V, dV/dt
│ │ U(rel), T ditto
│
├ .Aux Miscellaneous
│ ├ .Language Dialog language english, deutsch,
│ │ francais, espanol, italiano,
│ │ portugese, svenska 3.2.2.42.
│ ├ .Set Setting of date and time $G 3.2.2.43.
│ │ ├ .Date Date XXXX-XX-XX
│ │ ├ .Time Time XX:XX
│ ├ .RunNo Run number 0...9999 3.2.2.44.
│ ├ .AutoStart Automatic start 1...9999, OFF 3.2.2.45.
│ ├ .StartDelay Start delay time 0...999 999 3.2.2.46.
│ ├ .DevName Device label 8 ASCII char. 3.2.2.47.
│ ├ .Prog Program version read only 3.2.2.48.
│
├ .RSSet Settings RS232 $G 3.2.2.49.
│ ├ .Baud Baud rate 300,600,1200,2400,4800,
│ │ 9600
│ ├ .DataBit Number of data bits 7, 8 ditto
│ ├ .StopBit Number of stop bits 1, 2 ditto
│ ├ .Parity Parity even, odd, none ditto
│ ├ .Handsh Handshake HWs, HWf, SWchar,
│ │ SWline, none ditto
│
├ .ComVar Values of common variables
│ ├ .C30 C30 0... ±999 999 3.2.2.50.
│ ├ up to C39 0... ±999 999
│
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3.2 Remote control commands
&SmplData
Object Description Input range Reference
& Root
:
├ SmplData Sample data
: ├ .Status Status of silo memory ON, OFF 3.2.2.51.
├ .OFFSilo Current sample data
│ ├ .Id1 Sample identification 1 up to 8 ASCII char 3.2.2.52.
│ ├ .Id2 Sample identification 2 up to 8 ASCII char ditto
│ ├ .Id3 Sample identification 3 up to 8 ASCII char ditto
│ ├ .ValSmpl Sample size ±X.XXXXX ditto
│ ├ .UnitSmpl Unit of sample size up to 5 ASCII char ditto
├ .ONSilo Current sample data
│ ├ .Counter Counter of silo memory
│ │ ├ .MaxLines Maximum lines read only 3.2.2.53.
│ │ ├ .FirstLine First line read only ditto
│ │ ├ .LastLine Last line read only ditto
│ ├ .EditLine Editing silo lines
│ │ ├ .1 1
│ │ │ ├ .Method Method name up to 8 ASCII char 3.2.2.54.
│ │ │ ├ .Id1 Sample identification 1 up to 8 ASCII char ditto
│ │ │ ├ .Id2 Sample identification 2 up to 8 ASCII char ditto
│ │ │ ├ .Id3 Sample identification 3 up to 8 ASCII char ditto
│ │ │ ├ .ValSmpl Sample size ±X.XXXXX ditto
│ │ │ ├ .UnitSmpl Unit of sample size up to 5 ASCII char ditto
│ │ ├ up to 99 lines
│ ├ .DelLine Delete silo line $G 3.2.2.55.
│ │ ├ .LineNum Line number 1...99, OFF ditto
│ ├ .DelAll Delete silo line $G 3.2.2.56.
│ ├ .CycleLines Cycle lines ON, OFF 3.2.2.57.
st
silo line
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3.2. Remote control commands
&Info
Object Description Input range Reference
& Root
:
├ Info Current data
: ├ .Report Transmission of formatted reports $G 3.2.2.58.
│ ├ .Select Report type configuration, parameters,
│ smpl data, statistics, silo, calib
│ C-fmla, def, user method, full,
│ short, calc, all, ff ditto
│
├ .CalibrationData pH calibration data $G 3.2.2.59.
│ ├ .Inp1 For measuring input 1
│ │ ├ .pHas Asymmetry pH 0...7.00...±20.00 ditto
│ │ ├ .Slope Slope of electrode 0...1.000...±9.999 ditto
│ │ ├ .Temp Calibration temperature -170.0...25.0...500.0 ditto
│ │ ├ .Date Date of calibration read only ditto
│ │ ├ .ElectrodeId Id of the calibrated electrode read only ditto
│ ├ .Inp2 For measuring input 2, as for input 1
│ ├ .Diff For differential input, as for input 1
│
├ .Checksums Checksums $G 3.2.2.60.
│ ├ .ActualMethod Checksum of current method read only ditto
│
├ .DetermData Determination data $G 3.2.2.61.
│ ├ .Write Read/write for several nods ON, OFF
│ ├ .ExV Volume of Exchange/Dosing unit read only/read+write ditto
│
├ .TitrResults Titration results
│ ├ .RS Calculated results
│ │ ├ .1 1
│ │ │ ├ .Value Value read only 3.2.2.62.
│ │ ├ up to 9 results
│ ├ .EP Endpoint
│ │ ├ .1 1
│ │ │ ├ .V Value read only ditto
│ │ │ ├ .Meas Measured value read only ditto
│ │ ├ up to 2 EP's
│ ├ .Var Variables C4X
│ │ ├ .C40 Start measured value read only/read+write ditto
│ │ ├ .C41 Titration end volume read only/read+write
│ │ ├ .C42 Titration time read only/read+write
│ │ ├ .C43 Volume drift in SET read only/read+write
│ │ ├ .C44 Titration temperature read only/read+write
│ │ ├ .C45 Start volume read only/read+write
│ │ ├ .C46 Asymmetry pH read only
│ │ ├ .C47 Slope of electrode read only
│ │ ├ .DTime Time for drift correction read only/read+write
│
├ .StatisticsVal Statistics values
│ ├ .ActN Number of results in chart read only 3.2.2.63.
│ ├ .1 1
│ │ ├ .Mean Mean read only ditto
│ │ ├ .Std Absolute standard deviation read only ditto
│ │ ├ .RelStd Relative standard deviation read only ditto
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st
result
st
result
st
mean
3.2 Remote control commands
│ ├ up to 9 mean values
│
├ .ActualInfo Current data
│ ├ .Inputs I/O Inputs
│ │ ├ .Status Line status read only 3.2.2.64.
│ │ ├ .Change Change of line status read only ditto
│ │ ├ .Clear Clear change $G ditto
│ ├ .Outputs as for I/O Inputs ditto
│ │ ├ .Status Line status read only ditto
│ │ ├ .Change Change of line status read only ditto
│ │ ├ .Clear Clear change $G ditto
│ ├ .Assembly From Assembly
│ │ ├ .CyclNo Cycle number read only 3.2.2.65.
│ │ ├ .Counter Assembly counter read only 3.2.2.66.
│ │ │ ├ .V Volume counter read only ditto
│ │ │ ├ .Clear Clears counter $G ditto
│ │ ├ .PistonPos Measured value read only 3.2.2.67.
│ │ ├ .Meas Measured value read only ditto
│ ├ .Titrator From Titrator
│ │ ├ .CyclNo Cycle number read only 3.2.2.68.
│ │ ├ .V Volume read only ditto
│ │ ├ .Meas Measured indicator voltage read only ditto
│ │ ├ .dVdt Volume drift dV/dt read only ditto
│ │ ├ .dMeasdt Measured value drift read only ditto
│ │ ├ .dMeasdV 1st deviation of titration curve read only ditto
│ ├ .EP EP entry
│ │ ├ .Index Index of entry read only 3.2.2. 69.
│ │ ├ .X X coordinate read only ditto
│ │ ├ .Y Y coordinate read only ditto
│ ├ .Display Display
│ │ ├ .L1 Text line 1 up to 24 ASCII char 3.2.2.70.
│ │ ├ .L2 Text line 2 up to 24 ASCII char ditto
│
├ .Assembly Assembly
│ ├ CycleTime Cycle time read only 3.2.2.71.
│ ├ ExV Volume of Exchange unit read only ditto
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3.2. Remote control commands
&Assembly
Object Description Input range Reference
& Root
:
├ Assembly Assembly control
├ . Bur Buret
│ ├ .Rates Rates
│ │ ├ .Forward Forward rate
│ │ │ ├ .Select Type of rate control digital, analog 3.2.2.72.
│ │ │ ├ .Digital Digital rate 0...150, max. ditto
│ │ ├ .Reverse as for forward rate
│ │ │ ├ .Select Type of rate control digital, analog ditto
│ │ │ ├ .Digital Digital rate 0...150, max. ditto
│ ├ .Fill Fill $G,$H,$C 3.2.2.73.
│ ├ .ModeDis Dispensing $G,$S,$H,$C 3.2.2.74.
│ │ ├ .Select Type of dispensing control volume, time ditto
│ │ ├ .V Volume to be dispensed 0.0001...0.1...9999 ditto
│ │ ├ .Time Time to dispense 0.25...1...86 400 ditto
│ │ ├ .VStop Limit volume 0.0001...9999, OFF ditto
│ │ ├ .AutoFill Filling after each increment ON, OFF ditto
│
├ .Meas Measuring
│ ├ .Status Measuring ON/OFF ON, OFF 3.2.2.75.
│ ├ .MeasInput Selection of measuring input 1, 2, diff., Ipol, Upol, Temp ditto
│ ├ .Ipol Polarization current 0...1...±127 ditto
│ ├ .Upol Polarization voltage 0...400...±1270 ditto
│
├ .Outputs I/O outputs
│ ├ .AutoEOD Automatic output of EOD ON, OFF 3.2.2.76.
│ ├ .SetLines Set I/O lines $G ditto
│ │ ├ .L0 Signal on L0 active,inactive,pulse,OFF ditto
│ │ ├ up to L 3
│ ├ .ResetLines Reset I/O lines $G ditto
│
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3.2 Remote control commands
&Setup
Object Description Input range Reference
& Root
:
├ Setup Settings for the operating mode
├ .Keycode Send key code ON, OFF 3.2.2.77.
├ .Tree Sending format of path info
│ ├ .Short Short format of path ON, OFF 3.2.2.78.
│ ├ .ChangedOnly Paths of modified nodes only ON, OFF ditto
│
├ .Trace Message on changed values ON, OFF 3.2.2.79.
│
├ .Lock Lock key functions
│ ├ .Keyboard Lock all keyboard keys ON, OFF 3.2.2.80.
│ ├ .Config Lock <CONFIG> key ON, OFF ditto
│ ├ .Parameter Lock <PARAM> key ON, OFF ditto
│ ├ .SmplData Lock <SMPL DATA> key ON, OFF ditto
│ ├ .UserMeth Lock functions
│ │ ├ .Recall Lock “loading” ON, OFF ditto
│ │ ├ .Store Lock “saving” ON, OFF ditto
│ │ ├ .Delete Lock “deletion” ON, OFF ditto
│ └ .Display Lock display function ON, OFF ditto
│
├ .Mode Setting waiting intervals
├ .StartWait Waiting time after start ON, OFF 3.2.2.81.
│
│ ├ .FinWait Waiting time after run ON, OFF ditto
│
├ .SendMeas Automatic sending of measured values
├ .SendStatus Connect/disconnect sending ON, OFF 3.2.2.82.
│
│ ├ .Interval Time interval 0.08...4...16200, ditto
│ ├ .Select Selection Assembly, Titrator 3.2.2.83.
│ ├ .Assembly From assembly
│ │ ├ .CyclNo Cycle number ON, OFF 3.2.2.84.
│ │ ├ .V Volume ON, OFF ditto
│ │ ├ .Meas Measured indicator voltage ON, OFF ditto
│ ├ .Titrator From Titrator
│ │ ├ .CyclNo Cycle number ON, OFF 3.2.2.85.
│ │ ├ .V Volume ON, OFF ditto
│ │ ├ .Meas Measured indicator voltage ON, OFF ditto
│ │ ├ .dVdt Volume drift dV/dt ON, OFF ditto
│ │ ├ .dMeasdt Measured value drift ON, OFF ditto
│ │ ├ .dMeasdV 1st deviation of titration curve ON, OFF ditto
│
├ .AutoInfo Automatic message for changes 3.2.2.86.
│ ├ .Status Switch AutoInfo on/off ON, OFF ditto
│ ├ .P When mains is switched on ON, OFF ditto
│ ├ .T Titrator infos
│ │ ├ .R When “ready” ON, OFF ditto
│ │ ├ .G When method started ON, OFF ditto
│ │ ├ .GC When start is initiated ON, OFF ditto
│ │ ├ .S When stopped ON, OFF ditto
│ │ ├ .B Begin of method ON, OFF ditto
│ │ ├ .F End of process ON, OFF ditto
│ │ ├ .E Error ON, OFF ditto
│ │ ├ .H When “hold" ON, OFF ditto
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3.2. Remote control commands
│ │ ├ .C Continue after "hold" ON, OFF ditto
│ │ ├ .O Conditioning OK ON, OFF ditto
│ │ ├ .N Conditioning not OK ON, OFF ditto
│ │ ├ .Re Request after start ON, OFF ditto
│ │ ├ .Si Silo empty ON, OFF ditto
│ │ ├ .EP Entry in EP list ON, OFF ditto
│ │ ├ .RC Recalculation of results done ON, OFF ditto
│ ├ .I Changing an I/O input ON, OFF ditto
│ ├ .O Changing an I/O output ON, OFF ditto
│
├ .PowerOn RESET (power on) $G 3.2.2.87.
├ .Initialise Set default values $G 3.2.2.88.
│ ├ .Select Selection of branch ActMeth,Config,Silo,Calib
│ Assembly,Setup,All ditto
├ .RamInit Initialization of working mem. $G 3.2.2.89.
├ .InstrNo Device Identification $G 3.2.2.90.
├ .Value Input of device identification 8 ASCII characters ditto
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3.2 Remote control commands
&Diagnose
Object Description Input range Reference
& Root
:
├ Diagnose Diagnose
├ .Report Output of adjustment parameters $G 3.2.2.91.
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3.2. Remote control commands
3.2.2 Description of the remote control commands
3.2.2.1. Mode $G, $S, $H, $C
Start and stop ($G, $S) or hold of the current method (3.2.2.3) with $H and
continue with $C.
$G also serves to continue after inquiries of identifications and sample size after the start (see 3.2.2.25) as well as after inquiries of calibration temperature
and pH values of buffers (see 3.2.2.31 and 3.2.2.32).
3.2.2.2. Mode.QuickMeas $G, $S
Start and stop of a measurement in the basic mode with the parameters
(measured quantity, measuring input) of the current method. Corresponds to
the <meas/hold> key.
With an ongoing measurement, the current mode can be started. This stops
the measurement automatically.
3.2.2.3. Mode.Select SET, MEAS, CAL
Mode.SETQuantity pH, U, Ipol, Upol
Mode.MEASQuantity pH, U, Ipol, Upol, T
Selection of the standard mode. Mode and
the complete selection.
If a method is selected from the method memory, the nodes &Mode.Select
and &Mode.XXXQuantity are overwritten with mode and measured quantity of
the corresponding user method.
3.2.2.4. Mode.Name read only
Name of the current method in the working memory. $Q sends 8 ASCII characters. Standard methods carry the name ********. The node can be set
read + write, see 3.2.2.61.
3.2.2.5. Mode.Def.Formulas.1.Formula EPX, CXX, RSX, +, -, *, /, (, )
Mode.Def.Formulas.1.TextRS up to 8 ASCII characters
Mode.Def.Formulas.1.Decimal 0...2...5
Mode.Def.Formulas.1.Unit up to 6 ASCII characters
Mode.Def.Formulas.2.Formula
etc. up to .9
Entry of formulas. Rules for formula entry, see page 39f.
Example: "(EP2-EP1)*C01/C00"
In addition to the formula, a text for result output, the number of decimal
places and a unit for the result output can be selected. "No unit" is selected
with the blank string.
In place of "RSX", a result name may be entered (.TextRS). This name is outputted in the report full, short. It is used for the result and the corresponding
mean value.
3.2.2.6. Mode.Def.ComVar.C30 RSX, MNX, EPX, CXX
Mode.Def.ComVar.C31
etc., up to .C39
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the measured quantity belong to
3.2 Remote control commands
Assignment of common variables.
The values of the common variables are to be found in &Config.ComVar. They
can be viewed and entered there, see 3.2.2.50.
3.2.2.7. Mode.Def.Report.Assign
SET, MEAS, CAL: full, short, calc, param, calib, ff
Definition of the report sequence, which is outputted automatically at the end
of the determination. Entries of more than one block have to be separated with
";".
3.2.2.8. Mode.Def.Mean.1.Assign RS1, RSX, EPX, CXX
Mode.Def.Mean.2.Assign
etc., up to .9
Assignment of the statistics calculations. Valid assignments are a requirement
for statistics calculations. In addition, the statistics calculation must be
switched on, see 3.2.2.22. Rules for statistics calculations see page 41.
3.2.2.9. Mode.CFmla
Mode.CFmla.1.Value 0...±999 999
Mode.CFmla.2.Value
etc., up to .19
Calculation constants specific to a method. Stored in the method memory of
the Titrino. Operands specific to the sample (3.2.2.52 and 3.2.2.53) and values of common variables (3.2.2.50) on the other hand are not stored with the
methods.
3.2.2.10. Mode.Parameter.SET1.EP pH: 0...±20.00, OFF
U, Ipol: 0...±2000, OFF
Upol: 0...±200.0, OFF
Mode.Parameter.SET1.UnitEp read only
Parameters for SET: Setting the 1st endpoint as pH value, in mV (with U and
Ipol) resp. µA (with Upol). The corresponding unit can be read with .UnitEP.
If the value is on "OFF", no further nodes will appear from SET1.
3.2.2.11. Mode.Parameter.SET1.Dyn pH: 0.01...20.00, OFF
U, Ipol: 1...2000, OFF
Upol: 0.1...200.0, OFF
Mode.Parameter.SET1.UnitDyn read only
Mode.Parameter.SET1.MaxRate 0.01...10...150, max.
Mode.Parameter.SET1.MinRate 0.01...25.0...9999.9
Parameters for SET: Control parameters, see page 25.
.Dyn: Dynamics, control range in pH, mV (with U and Ipol) or µA (with
Upol). The corresponding unit can be read with .UnitDyn.
.MaxRate: Maximum allowed titration rate in mL/min. Max. means maximum
possible rate with the Exchange Unit in current use.
.MinRate: Minimum titration rate in ul/min.
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3.2. Remote control commands
3.2.2.12. Mode.Parameter.SET1.Stop.Type drift, time
Mode.Parameter.SET1.Stop.Drift 1...20...999
Mode.Parameter.SET1.Stop.Time 0...10...999, inf
Mode.Parameter.SET1.Stop.StopT 0...99 999, OFF
Parameters for SET: Type and size of the stop criterion of the titration.
.Type: Type of stop criterion after stop drift or switch-off delay time.
.Drift: Stop drift in µL/min. Applies when "drift" has been selected.
.Time: Switch-off delay time in s. Applies when "time" has been selected. "inf"
means infinite.
.StopT: Stop time in s. Applies when "time" has been selected and the value of
.Time is set to "inf.".
3.2.2.13. Mode.Parameter.TitrPara.Direction +, -, auto
Parameters for SET: Titration direction.
"auto" means the titration direction is determined automatically by the instrument. If 2 EP's have been set in a SET titration, the titration direction is given
by the two EP's. The entry of the titration direction is then invalid.
3.2.2.14. Mode.Parameter.TitrPara.XPause 0...999 999
Parameter for SET: Pause time 1 in s. Is waited off before the dispensing of
the start volume.
3.2.2.15. Mode.Parameter.TitrPara.StartV.Type abs., rel., OFF
Mode.Parameter.TitrPara.StartV.V 0...999.99
Mode.Parameter.TitrPara.StartV.Factor 0...±999 999
Mode.Parameter.TitrPara.StartV.Rate 0.01...150, max.
Parameters for SET: Start volume.
If an absolute
start volume (abs.) has been selected, the volume in mL is
valid.
A relative
Start volume in mL = smpl size
start volume (rel.) is dispensed as a function of the sample size:
factor
*
The factor is valid.
The dispensing rate in mL/min applies to both cases. Max. means maximum
possible dispensing rate with the Exchange Unit in current use.
3.2.2.16. Mode.Parameter.TitrPara.Pause 0...999 999
Parameter for SET: Pause time 2 in s. Is waited off after the dispensing of the
start volume.
3.2.2.17. Mode.Parameter.TitrPara.ExtrT 0...999 999
Parameter for SET: Extraction time in s.
3.2.2.18. Mode.Parameter.TitrPara.MeasInput 1, 2, diff.
Mode.Parameter.TitrPara.Ipol -127...1...+127
Mode.Parameter.TitrPara.Upol -1270...400...+1270
Mode.Parameter.TitrPara.PolElectrTest ON, OFF
Parameters for SET:
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3.2 Remote control commands
Selection of the measuring input; valid with measured quantities pH and U.
"diff." means differential amplifier, see page 124.
With Ipol, the inquiries for the polarization current in µA (Ipol) and
.PolElectrTest are valid.
With Upol, the inquiry for the polarization voltage in mV (Upol) is valid. Entry in
steps of 10 mV.
Besides .PolElectrTest is valid.
If the test for polarized electrodes is switched on, it is performed on changeover from the inactive state to an active state (titration or conditioning).
3.2.2.19. Mode.Parameter.TitrPara.Temp -170.0...25.0...500.0
Parameter for SET: Titration temperature in °C. If a Pt100 or Pt1000 is connected, the temperature is measured continuously and the parameter .Temp is
updated.
The temperature is used for the temperature correction in pH measurements.
3.2.2.20. Mode.Parameter.StopCond.VStop.Type abs., rel., OFF
Mode.Parameter.StopCond.VStop.V 0...99.99...9999.99
Mode.Parameter.StopCond.VStop.Factor 0...±999 999
Parameter for SET: Stop volume.
If an absolute
stop volume (abs.) has been selected, the volume in mL is
valid.
A relative
Stop volume in mL = smpl size
stop volume (rel.) is dispensed as a function of the sample size:
factor
*
The factor is valid.
OFF means that the criterion is not monitored.
3.2.2.21. Mode.Parameter.StopCond.FillRate 0.01...150, max.
Parameter for SET: Filling rate in the titration in mL/min. Max. means maximum possible filling rate with the Exchange Unit in current use.
3.2.2.22. Mode.Parameter.Statistics.Status ON, OFF
Mode.Parameter.Statistics.MeanN 2...20
Mode.Parameter.Statistics.ResTab.Selected original, delete n,
delete all
Mode.Parameter.Statistics.ResTab.DelN 1...20
Entries for the statistics calculations.
.Status: On/off switching. Requirement for statistics calculations is a valid
assignment, see 3.2.2.8.
.MeanN: Number of individual results for statistics calculations.
.ResTab.Select: Selection of the table for the statistics calculations.
original: Original table. The original table is (again) set up, i.e. any
individual results which have been deleted are reincorporated
in the statistics calculations.
delete n: Single result lines are removed from the statistics calcu-
lation. All results of the corresponding line in the statistics
table are deleted. Specification of the line number in
.ResTab.DelN.
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3.2. Remote control commands
delete all: Clear entire statistics table. The results can not be reac-
tivated.
.ResTab.DelN: Specification of the line number to be deleted.
3.2.2.23. Mode.Parameter.Presel.Cond ON, OFF
Mode.Parameter.Presel.DriftDisp ON, OFF
Parameters for SET:
.Cond: Conditioning ON/OFF
.DriftDisp: Drift display during conditioning ON/OFF.
3.2.2.24. Mode.Parameter.Presel.DCor.Type auto, man, OFF
Mode.Parameter.Presel. DCor.Value 0.0, 99.9
Parameters for SET:
.Type: Mode of drift correction
.Value: drift value in µL/min.
If "auto" is set, the actual drift value at the start of titration is used for drift correction.
Formula for drift correction: EP – (drift value * titration time)
3.2.2.25. Mode.Parameter.Presel.IReq id1, id1&2, all, OFF
Mode.Parameter.Presel.SReq value, unit, all, OFF
Parameters for SET, MEAS: Automatic inquiry after the start of the determination. From such an inquiry, the determination continues if the requested entry/entries is/are made, e.g. &SmplData.OFFSilo.Id1 (see 3.2.2.73) or with &M
$G, see 3.2.2.1.
$H is not possible in requests.
3.2.2.26. Mode.Parameter.Presel.ActPuls ON, OFF
Parameter for SET: first, all, cond., OFF
Output of a pulse on the I/O line "Activate", see page 131.
3.2.2.27. Mode.Parameter.Measuring.SignalDrift
pH, U, Ipol, T: 0.5...999, OFF
Upol: 0.05...99.9, OFF
Mode.Parameter.Measuring.UnitSigDrift read only
Mode.Parameter.Measuring.EquTime 0...9999, OFF
Parameters for MEAS: Criteria for the measured value acquisition. Measured
value drift in mV/min (with pH, U, Ipol), µA/min (with Upol), resp. °C/min
(with T). Equilibration time in s. OFF means that the corresponding criterion is
switched off. If both criteria are OFF, the measurement continues indefinitely.
If the equilibration time has never been edited, it is automatically calculated by
the instrument to match the drift, see page 34. After it has been edited once, it
remains in force with the set value.
3.2.2.28. Mode.Parameter.Measuring.MeasInput 1, 2, diff.
Mode.Parameter.Measuring.Ipol ±127...1...+127
Mode.Parameter.Measuring.Upol ±1270...400...+1270
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3.2 Remote control commands
Mode.Parameter.Measuring.PolElectrTest ON, OFF
Parameters for MEAS:
Selection of the measuring input; valid with measured quantities pH and U.
"diff." means differential amplifier, see page 124.
With Ipol, the inquiries for the polarization current in µA (Ipol) and
.PolElectrTest are valid.
With Upol the inquiry for the polarization voltage in mV (Upol) is valid. Entry in
steps on 10 mV.
Besides .PolElectrTest is valid.
If the test for polarized electrodes is switched on, it is performed on changeover from the inactive state to the measurement.
3.2.2.29. Mode.Parameter.Measuring.Temp -170.0...25.0...500.0
Parameters for MEAS: Measurement temperature in °C. If a Pt100 or Pt1000
is connected, the temperature is measured.
The temperature is used for the temperature correction in pH measurements.
3.2.2.30. Mode.Parameter.Calibration.MeasInput 1, 2, diff.
Parameters for CAL: Selection of the measuring input. "diff." means differential amplifier, see page 124.
3.2.2.31. Mode.Parameter.Calibration.CalTemp -20.0...25.0...120.0
Parameters for CAL: Calibration temperature in °C. If a Pt 100 or Pt1000 is
connected, the temperature is measured.
3.2.2.32. Mode.Parameter.Calibration.Buffer.1.Value 0...7.00...±20.00
Mode.Parameter.Calibration.Buffer.2.Value 0...4.00...±20.00, OFF
etc. up to 9 buffers
Parameters for CAL: pH of buffers. The first buffer which is set to "OFF" determines the number of buffers in the calibration.
3.2.2.33. Mode.Parameter.Calibration.SignalDrift 0.5...2...999, OFF
Mode.Parameter.Calibration.EquTime 0...110...9999, OFF
Parameters for CAL: Criteria for measured value acquisition. Measured value
drift in mV/min, equilibration time in s. OFF means that the corresponding criterion is switched off. If both criterions are on OFF, the measured value is acquired immediately.
If the equilibration time has never been edited, it is automatically calculated by
the instrument to match the drift, see page 34. After it has been edited once, it
remains in force with the set value.
3.2.2.34. Mode.Parameter.Calibration.ElectrodeId up to 8 ASCII char
Parameters for CAL: Electrode identification. It is classified under calibration
data, see 3.2.2.59.
3.2.2.35. Mode.Parameter.Calibration.SmplChanger ON, OFF
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3.2. Remote control commands
Parameters for CAL: Calibration at Titrino.
With "ON", there are no hold points in the calibration sequence for entries, the
first buffer is measured directly.
3.2.2.36. Mode.Parameter.Calibration.ActPulse first, all, OFF
Parameters for CAL: Output of a pulse on the I/O line "Activate", see page
131.
3.2.2.37. UserMeth.FreeMem read only
Memory space, available for user methods or silo lines. $Q sends the number
of free bytes, e.g. "4928".
3.2.2.38. UserMeth.Recall $G
UserMeth.Recall.Name up to 8 ASCII characters
UserMeth.Store $G
UserMeth.Store.Name up to 8 ASCII characters
UserMeth.Delete $G
UserMeth.Delete.Name up to 8 ASCII characters
UserMeth.DelAll $G
Management of the internal method memory: Load, store and delete methods.
An action is performed if "$G" is sent to the corresponding node just after entering the name.
Do not use blank characters before and after method name!
.DelAll: Deletes all methods in the user memory.
3.2.2.39. UserMeth.List.1.Name read only
UserMeth.List.1.Mode read only
UserMeth.List.1.Quantity read only
UserMeth.List.1.Bytes read only
UserMeth.List.1.Checksum read only
for each method
List of the methods in the user method memory with the following
characteristics:
.Name: Name of the method
.Mode: Mode
.Quantity: Measured quantity
.Bytes: Number of bytes of the user memory used by the method
.Checksum: Checksum of the method, see 3.2.2.59.
3.2.2.40. Config.PeriphUnit.CharSet Epson, Seiko, Citizen, HP, IBM
Selection of the character set and the graphics control characters of the Titrino.
IBM means the IBM character set following character set table 437 and IBM
graphics control characters. Select 'IBM' for work with the computer.
3.2.2.41. Config.PeriphUnit.Balance Sartorius,Mettler,Mettler AT,
AND,Precisa
Config.PeriphUnit.Plot U, dU/dt, V, dV/dt, U(rel), T
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3.2 Remote control commands
Selection of the balance type and the signal at the analog output.
3.2.2.42. Config.Aux.Language english, deutsch, francais, espanol,
italiano, portugese, svenska
Selection of the dialog language.
3.2.2.43. Config.Aux.Set $G
Config.Aux.Set.Date YYYY-MM-DD
Config.Aux.Set.Time HH:MM
Date and time.
Input format of the date: Year-month-day, two-digit, enter leading zeros.
Input format for the time: Hours:minutes, two-digit, enter leading zeros.
Date and time have to be set with &Config.Aux.Set $G just after entry of the
value.
3.2.2.44. Config.Aux.RunNo 0...9999
Current sample number.
Set to 0 on power on and initialization. After 9999, counting starts again at 0.
3.2.2.45. Config.Aux.AutoStart 1...9999, OFF
Number of automatic, internal starts.
3.2.2.46. Config.Aux.StartDelay 0...999 999
Start delay time in s. During this time, the data of the preceding determination
are retained.
3.2.2.47. Config.Aux.DevName up to 8 ASCII characters
Name of the instrument for connections with several units. It is advisable to
use only the letters A...Z (ASCII No. 65...90), a...z (ASCII No. 97...122) and
the numbers 0...9 (ASCII No. 48...57) when the function Setup.AutoInfo
(3.2.2.86) is used at the same time.
If a name has been entered, it will be printed out in the result report (full,
short).
3.2.2.48. Config.Aux.Prog read only
Output of the program version.
The Titrino sends "719.0021" on requests with $Q.
3.2.2.49. Config.RSSet $G
Config.RSSet.Baud 300, 600, 1200, 2400, 4800, 9600
Config.RSSet.DataBit 7, 8
Config.RSSet.StopBit 1, 2
Config.RSSet.Parity even, odd, none
Config.RSSet.Handsh HWs, HWf, SWchar, SWline, none
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3.2. Remote control commands
$G sets all RS settings. The changes are performed only if the instrument is
inactive. After the setting of the interface parameters, wait at least 2 s to allow
the components to equilibrate.
Settings of the values for the data transmission via the RS interface: baud
rate, data bit, stop bit, parity and type of handshake, see also page 95ff.
The setting of the values must be initiated with $G immediately after entry of
the values.
3.2.2.50. Config.ComVar.C30
with up to .C39, etc. 0... +
999 999
Values of the common variables from C30 up to C39. Insert the common
variables directly or describe the determination results directly from the
method, see 3.2.2.6.
3.2.2.51. SmplData.Status ON, OFF
On/off switching of silo memory. When the silo memory is switched on, the
sample data are fetched from the lowest valid silo line.
3.2.2.52. SmplData.OFFSilo.Id1 up to 8 ASCII characters
SmplData.OFFSilo.Id2 up to 8 ASCII characters
SmplData.OFFSilo.Id3 up to 8 ASCII characters
SmplData.OFFSilo.ValSmpl 6-digits, sign and decimal point
SmplData.OFFSilo.UnitSmpl up to 5 ASCII characters
Current sample data.
The identifications Id1...Id3 can be used in formulas as sample-specific calculation constants C21...C23.
If "no unit" is desired for the unit of the sample size, the blank string must be
entered.
3.2.2.53. SmplData.ONSilo.Counter.MaxLines read only
SmplData.ONSilo.Counter.FirstLine read only
SmplData.ONSilo.Counter.LastLine read only
Information on silo memory.
.MaxLines: Maximum possible number of silo lines.
.FirstLine: Lowest valid silo line.
.LastLine: Last occupied silo line.
3.2.2.54. SmplData.ONSilo.EditLine.1.Method up to 8 ASCII characters
SmplData.ONSilo.EditLine.1.Id1 up to 8 ASCII characters
SmplData.ONSilo.EditLine.1.Id2 up to 8 ASCII characters
SmplData.ONSilo.EditLine.1.Id3 up to 8 ASCII characters
SmplData.ONSilo.EditLine.1.ValSmpl 6-digits, sign and dec.point
SmplData.ONSilo.EditLine.1.UnitSmpl up to 5 ASCII characters
etc., up to .99
Contents of a silo line.
.Method: Method used to process the sample, from the method memory or
from the card.
.Id: The identifications Id1...Id3 can also be used as sample-specific
calculation constants C21...C23 in formulas.
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3.2 Remote control commands
.UnitSmpl: If "no unit" is desired for the sample size, the blank string must be
entered.
3.2.2.55. SmplData.ONSilo.DelLine $G
SmplData.ONSilo.DelLine.LineNum 1...99, OFF
Deletion of a silo line. The line # is deleted with &SmplData.ONSilo.DelLine
$G. If a formerly deleted line is edited again, it becomes valid (function "undelete").
3.2.2.56. SmplData.ONSilo.DelAll $G
Deletes the entire silo memory. Must be triggered with $G.
3.2.2.57. SmplData.ONSilo.CycleLines ON, OFF
Silo data cycling.
With "ON", executed lines are copied to the next free silo lines, see page 53.
Exercise caution if you edit the silo memory during the determinations!
3.2.2.58. Info.Report $G
Info.Report.Select configuration, parameters, smpl data,
statistics, silo, calib, C-fmla, def,
user method, full, short, calc, all, ff
$G sends the selected report to the COM which is set in
&Config.PeriphUnit.RepToComport:
configuration: Configuration report. Is not accessible during a running deter-
mination.
parameters: Parameter report of the current method. During a running deter-
mination only "live"-parameters are accessible.
smpl data: Current sample data.
statistics: Statistics table with the individual results.
silo: Contents of the silo memory.
calib: Calibration data of the measuring input in the current method.
C-fmla: Contents of the <C-fmla> key.
def: Contents of the <def> key.
user method: Contents of the method memory.
full: Full result report of the last completed determination.
short: Short result report of the last completed determination.
calc: Calculation report of the current method.
all: All reports.
ff: Form feed on printer.
Reports which are sent from the Titrino are marked with space (ASCII 32) and
' at the beginning. Then an individual identifier for each report follows. Reports
which are triggered by RS232 ($G) have the same introducer but without preceding space, i.e. they start with '.
3.2.2.59. Info.CalibrationData $G
Info.CalibrationData.Inp1.pHas -20.00...7.00...+20.00
Info.CalibrationData.Inp1.Slope -9.999...1.000...+9.999
Info.CalibrationData.Inp1.Temp -170.0...25.0...+500.0
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3.2. Remote control commands
Info.CalibrationData.Inp1.Date read only
Info.CalibrationData.Inp1.ElectrodeId read only
identical for .Inp2 and .Diff
pH calibration data for measuring input 1. After the calibration, the data are
entered automatically together with the date of the calibration and the electrode identification, see 3.2.2.34.
Calibration data can be entered. They are accepted with &Info.CalibrationData
$G. If calibration data are entered, the calibration date is deleted.
3.2.2.60. Info.Checksums $G
Info.Checksums.ActualMethod read only
The checksums can be used to identify the content of a file unequivocally,
e.g. files with identical content
have identical results of the checksums. An empty file has checksum "0". The
calculation of the checksums is triggered with $G.
.ActualMethod: Result of the checksum of the current method in the working
memory. Identical methods with different method names have the
same results of the checksum.
3.2.2.61. Info.DetermData $G
Info.DetermData.Write ON, OFF
Info.DetermData.ExV read only/read+write
Recalculation of the measuring data is triggered with $G.
.Write: With "ON", the following nodes can be overwritten:
&Info.TitrResults.Var.C4X (X = 0...5) and &Mode.Name.
.ExV: Volume of the exchange unit, with which the determination was
executed
3.2.2.62. Info.TitrResults.RS.1.Value read only
etc., up to .9
Info.TitrResults.EP.1.V read only
Info.TitrResults.EP.1.Meas read only
etc., up to .2
Info.TitrResults.Var.C40 read only/read+write
etc., up to .C47
.RS: Values of the calculated results.
.EP: Endpoints with SET:
Volume coordinate in mL, e.g. "1.2340"
Measured value coordinate in pH "5.12", mV (with U and Ipol) "-
241" or µA (with Upol) "43.7".
.Var: Various variables. You may overwrite the variables C40...C45, see
3.2.2.95.
C40: Initial measured value in pH "5.12", mV (with U and Ipol)
"41", µA (with Upol) "43.7" or °C (with T) "25.0". In MEAS final
measured value.
C41: End volume with SET in ml, "12.5360".
C42: Time from start of titration to end in s, "62".
C43: Volume drift on start of a SET titration from the conditioning
in ul/min, "3.5".
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3.2 Remote control commands
C44: (Last measured) temperature in °C. Used for the temperature
compensation in pH measurements.
C45: Start volume with SET in ml, "2.800".
C46: Asymmetry pH of CAL, "6.89".
C47: Relative electrode slope of CAL, "0.9950".
3.2.2.63. Info.StatisticsVal.ActN read only
Info.Statistics.1.Mean read only
Info.Statistics.1.Std read only
Info.Statistics.1.RelStd read only
etc. up to .9
The current values of the statistics calculation.
$Q sends, e.g.
ActN: Current value of the individual results "3"
Data for MN1:
Mean: Mean value (decimal places as in result) "3.421"
Std: Standard deviation (1 decimal place more than in result) "0.0231"
RelStd: Relative standard deviation (in %, 2 decimal places) "0.14"
3.2.2.64. Info.ActualInfo.Inputs.Status read only
Info.ActualInfo.Inputs.Change read only
Info.ActualInfo.Inputs.Clear $G
Info.ActualInfo.Outputs.Status read only
Info.ActualInfo.Outputs.Change read only
Info.ActualInfo.Outputs.Clear $G
Status sends the current status of the I/O lines, Change sends the information
regarding whether a change in status of a line has taken place since the last
clearing, Clear clears the change information. For the output, there is a conversion from binary to decimal, e.g.
Line No.
Output: 2
| 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 |
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
1
+ 23 = "10"
1 means ON or change; 0 means OFF or no change.
The lines are assigned as follows (see also pages 129ff):
Inputs: Outputs:
0 Start (pin 21) 0 Ready (pin 5)
1 Stop (pin 9) 1 Cond. ok (pin 18)
2 Enter (pin 22) 2 Titration (pin 4)
3 Clear (pin 10) 3 EOD (pin 17)
4 Smpl Ready (pin 23) 4 Freely selectable (pin 3)
5 pin 11 5 Error (pin 16)
6 pin 24 6 Activate (pin 1)
7 pin 12 7 Pulse for recorder (pin 2)
3.2.2.65. Info.ActualInfo.Assembly.CyclNo read only
$Q sends the current cycle number of the voltage measurement cycle, e.g.
"127". From the cycle number and the cycle time (see 3.2.2.71), a time frame
can be set up.
The cycle number is set to 0 on switching on the instrument, on every start
and for QuickMeas. It is incremented as long as the instrument remains
switched on.
87
3.2. Remote control commands
3.2.2.66. Info.ActualInfo.Assembly.Counter.V read only
Info.ActualInfo.Assembly.Counter.Clear $G
$Q sends the volume. With the function &Info.Assembly.Counter.Clear $G, the
volume counter is set to zero.
3.2.2.67. Info.ActualInfo.Assembly.Meas read only
Info.ActualInfo.Assembly.PistonPos read only
$Q sends the current measured value from the assembly.
Piston position: 0 = initial position (filled)
10 000 = end position (empty)
3.2.2.68. Info.ActualInfo.Titrator.CyclNo read only
Info.ActualInfo.Titrator.V read only
Info.ActualInfo.Titrator.Meas read only
Info.ActualInfo.Titrator.dVdt read only
Info.ActualInfo.Titrator.dMeasdt read only
Info.ActualInfo.Titrator.dMeasdV read only
$Q sends the current values in the following formats:
SET MEAS CAL
CyclNo 127 127 127
V(ml) 1.2345 - Meas:
pH
U, Ipol (mV)
Upol (uA)
T (°C)
3.6(mV)
-345.6
-12.5
-
3.345
-345.6
-12.5
25.0
3.345
-
-
dVdt (ul/s) 2.5142 - dMeasdt
pH,U,Ipol mV/s
Upol (uA/s)
T (°C/s)
0.7957
0.7957
-
0.7957
0.7957
0.7957
0.7957
-
dMeasdV (mV/ul) 10.6326 - -
NV: Not Valid. If in the signal drift is OFF in modes MEAS and CAL, the signal
drift is NV.
OV will be sent for "overrange".
A time frame can be set up from the cycle number and the cycle time (see
3.2.2.71). The cycle number is set to 0 at the start of a method and it is incremented until the end of the method.
3.2.2.69. Info.ActualInfo.EP.Index read only
Info.ActualInfo.EP.X read only
Info.ActualInfo.EP.Y read only
.EP.X"1.234" Volume coordinate of the EP
.EP.Y"5.34" Measured value coordinate of the EP
3.2.2.70. Info.ActualInfo.Display.L1 up to 24 ASCII characters
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3.2 Remote control commands
Info.ActualInfo.Display.L2 up to 24 ASCII characters
Lines of the display. The display can be written to from the computer. Proceed as follows:
Lock the display, see 3.2.2.80.
$Q sends the contents of the corresponding display line.
3.2.2.71. Info.Assembly.CycleTime read only
Info.Assembly.ExV read only
Inquiries regarding basic variables of the assembly: Cycle time in s, volume of
the active Exchange Unit in mL.
3.2.2.72. Assembly.Bur.Rates.Forward.Selected digital, analog
Assembly.Bur.Rates.Forward.Digital 0...150, max.
Assembly.Bur.Rates.Reverse.Selected digital, analog
Assembly.Bur.Rates.Reverse.Digital 0...150, max.
Expel and aspirating rate.
Digital or analog control. With digital control, the inputted value applies (in
mL/min). "max." means maximum possible rate with the Exchange Unit in
current use.
Analog means rate control with the analog potentiometer on Titrino.
3.2.2.73. Assembly.Bur.Fill $G, $H, $C
$G starts the 'FILL' mode of the buret function.
3.2.2.74. Assembly.Bur.ModeDis $G, $S, $H, $C
Assembly.Bur.ModeDis.Selected volume, time
Assembly.Bur.ModeDis.V 0.0001...0.1...9999
Assembly.Bur.ModeDis.Time 0.25...1...86400
Assembly.Bur.ModeDis.VStop 0.0001...9999, OFF
Assembly.Bur.ModeDis.AutoFill ON, OFF
Dispensing mode with parameters. The dispensing mode can only be started
and stopped via the RS Control. During a running dosification, no method can
be started at the Titrino.
.Selected: Dispensing of volume increments or during a preset time.
.Volume, .Time: Size of the volume increments or entry of time.
.VStop: Limit volume for the dispensing.
.AutoFill: ON means automatic filling after every dispensing.
3.2.2.75. Assembly.Meas.Status ON, OFF
Assembly.Meas.MeasInput 1, 2, Diff., Ipol, Upol, Temp
Assembly.Meas.Ipol ±127...1...+127
Assembly.Meas.Upol ±1270...400...+1270
Measurement in assembly. The measuring function can only be started via RS
Control. When the measuring function is switched on, no method can be
started at the Titrino.
.Input: Selection of the potentiometric measuring input 1, 2, diff., polar-
ized electrodes or temperature.
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3.2. Remote control commands
.Ipol: Polarization current in µA.
.Upol: Polarization potential in mV, entry in steps of 10 mV.
3.2.2.76. Assembly.Outputs.AutoEOD ON, OFF
Assembly.Outputs.SetLines $G
Assembly.Outputs.SetLines.L0 active, inactive, pulse, OFF
up to .L 3
Assembly.Outputs.ResetLines $G
Setting the I/O output lines.
.AutoEOD: The automatic output of the EOD (End of Determination) at the
end of the determination can be switched off. Thus, for example,
in conjunction with a Titrino several determinations can be performed in the same beaker. Before AutoEOD is switched on, line 3
must be set to "OFF".
.SetLines: With $G, all lines are set.
.SetLines.LX: Set the line LX. "active" means setting of a static signal, "inac-
tive" means resetting of the signal, "pulse" means output of a
pulse of app. 150 ms, "OFF" means the line is not operated, see
also page 130.
Warnings:
• L2 is the EOD line. If you have "AutoEOD" set to "ON", an active
line 2 is set to "inactive" by the EOD pulse.
• L3 is the line of the activate pulse. An active line 3 is set to "inactive" by the activate pulse.
.ResetLines: Lines are set to the inactive status (= high).
3.2.2.77. Setup.Keycode ON, OFF
ON means the key code of a key pressed on the Titrino is outputted. The key
code comprises 2 ASCII characters; table of the keys with their code, see
page 108. A keystroke of key 11 is sent as follows:
#11
The beginning of the message is marked by a space (ASCII 32).
3.2.2.78. Setup.Tree.Short ON, OFF
Setup.Tree.ChangedOnly ON, OFF
Definition of the type of answer to $Q.
.Short: With "ON", each path is sent with only the necessary amount of
characters in order to be unequivocal (printed in bold in this manual). A combination of .Short and .ChangedOnly is not possible.
.ChangedOnly: Sends only the changed values, i.e. values which have
been edited. All paths are sent absolute, i.e. from the root.
3.2.2.79. Setup.Trace ON, OFF
The Titrino automatically reports when a value has been confirmed with <enter> at the Titrino. Message, e.g.:
&SmplData.OFFSilo.Id1"Trace"
The beginning of the message is marked by a space (ASCII 32).
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90
3.2 Remote control commands
3.2.2.80. Setup.Lock.Keyboard ON, OFF
Setup.Lock.Config ON, OFF
Setup.Lock.Parameter ON, OFF
Setup.Lock.SmplData ON, OFF
Setup.Lock.UserMeth.Recall ON, OFF
Setup.Lock.UserMeth.Store ON, OFF
Setup.Lock.UserMeth.Delete ON, OFF
Setup.Lock.Display ON, OFF
ON means disable the corresponding function:
.Keyboard: Disable all keys of the Titrino
.Config: Disable the <configuration> key
.Parameter: Disable the <parameter> key
.SmplData: Disable the <smpl data> key
.UserMeth.Recall: Disable "recall" in <user meth> key
.UserMeth.Store: Disable "store" in <user meth> key
.UserMeth.Delete: Disable "delete" in <user meth> key
.Display: Disable the display, i.e. it will not be written to by the device pro-
gram of the Titrino and can be operated from the computer.
3.2.2.81. Setup.Mode.StartWait ON, OFF
Setup.Mode.FinWait ON, OFF
Holding points in the method sequence. If they are "ON", the sequence stops
until "OFF" is sent. Switching the instrument on sets both nodes to OFF:
.StartWait: Holding point right after starting a method or submethod in TIP
(holding point after AutoInfo !".T.GC").
.FinWait: Holding point at the end a method or submethod in TIP (holding
point after AutoInfo !".T.F").
3.2.2.82. Setup.SendMeas.SendStatus ON, OFF
Setup.SendMeas.Interval 0.08...4...16200, MPList
.SendStatus: ON means the automatic transmission of measured values (see
3.2.2.84 and 3.2.2.85) in the inputted interval is active.
.Interval: Time interval (in s) for the automatic transmission of associated
measured values defined under points 3.2.2.84 and 3.2.2.85. The
inputted value is rounded off to a multiple of 0.08. The smallest
possible time interval depends on the number of measured values
which have to be sent, on the baud rate, on the load on the interface and on the type of device connection.
The automatic transmission is switched on/off with 'SendStatus'.
3.2.2.83. Setup.SendMeas.Select Assembly, Titrator
Selection of the unit of which the measured values should be sent (3.2.2.84
or 3.2.2.85).
3.2.2.84. Setup.SendMeas.Assembly.CyclNo ON, OFF
Setup.SendMeas.Assembly.V ON, OFF
Setup.SendMeas.Assembly.Meas ON, OFF
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91
3.2. Remote control commands
Selection of the values from Assembly for the output in the set time interval
(see 3.2.2.82):
.CyclNo: Cycle number of the potential measurement. Together with the
cycle time (3.2.2.81), a time frame can be set up.
The cycle number is set to 0 on switching on the instrument and it
is always incremented as long as the instrument remains
switched on.
.V: Volume
.Meas: Measured value associated to the cycle number.
The unit "assembly" must be preset (see 3.2.2.83).
3.2.2.85. Setup.SendMeas.Titrator.CyclNo ON, OFF
Setup.SendMeas.Titrator.V ON, OFF
Setup.SendMeas.Titrator.Meas ON, OFF
Setup.SendMeas.Titrator.dVdt ON, OFF
Setup.SendMeas.Titrator.dMeasdt ON, OFF
Setup.SendMeas.Titrator.dMeasdV ON, OFF
Selection of the values from the titrator which are sent in the set time interval
(see 3.2.2.82, formats see 3.2.2.68):
.CyclNo: Cycle number. Together with the cycle time (3.2.2.71), a time
frame can be set up. The other data belong to the corresponding
cycle number. The cycle number is set to 0 at the start of a
method and it is incremented until the end of the method.
.V: Volume.
.Meas: Measuring value
.dVdt: associated volume drift.
.dMeasdt: associated measured value drift.
.dMeasdV: associated 1st derivative of the titration curve.
The unit "titrator" must be preset (see 3.2.2.83).
3.2.2.86. Setup.AutoInfo.Status ON, OFF
Setup.AutoInfo.P ON, OFF
Setup.AutoInfo.T.R ON, OFF
Setup.AutoInfo.T.G ON, OFF
Setup.AutoInfo.T.GC ON, OFF
Setup.AutoInfo.T.S ON, OFF
Setup.AutoInfo.T.B ON, OFF
Setup.AutoInfo.T.F ON, OFF
Setup.AutoInfo.T.E ON, OFF
Setup.AutoInfo.T.H ON, OFF
Setup.AutoInfo.T.C ON, OFF
Setup.AutoInfo.T.O ON, OFF
Setup.AutoInfo.T.N ON, OFF
Setup.AutoInfo.T.Re ON, OFF
Setup.AutoInfo.T.Si ON, OFF
Setup.AutoInfo.T.M ON, OFF
Setup.AutoInfo.T.EP ON, OFF
Setup.AutoInfo.T.RC ON, OFF
Setup.AutoInfo.I ON, OFF
Setup.AutoInfo.O ON, OFF
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92
3.2 Remote control commands
ON means that the Titrino reports automatically the moment the corresponding change occurs.
.Status: Global switch for all set AutoInfo.
.P PowerOn: Simulation of power on (3.2.2.87). Not from mains.
Messages from node .T, Titrator:
.T.R Ready: Status 'Ready' has been reached.
.T.G Go: Instrument has been started.
.T.GC GoCommand: Instrument has received a go command.
.T.S Stop: Status 'Stop' has been reached.
.T.B Begin of sequence.
.T.F Final: End of determination, the final steps will be carried out.
.T.E Error. Message together with error number, see page 60ff.
.T.H Hold: Status 'Hold' has been reached.
.T.C Continue: Continue after hold.
.T.O Conditioning OK: EP reached (in SET with conditioning).
.T.N Conditioning Not OK: EP not reached (in SET with conditioning).
.T.Re Request: In the inquiry of an identification or the sample size after
start of titration.
.T.Si SiloEmpty: Silo empty, i.e. the last line has been removed from
the silo memory.
.T.EP EPList: Entry into EP list (with SET)
.T.RC Results have been recalculated.
Messages for changings in the I/O lines. If the changings are made simultaneously, there is 1 message. Pulses receive 2 messages: one message each
for line active and inactive.
.I Input: Change of an input line.
.O Output: Change of an output line (except 7, pin 2, for recorder
pulses).
If a change occurs that requires a message, the Titrino sends space (ASCII
32) and ! as an introducer. This is followed by the name of the device (see
3.2.2.47). Special ASCII characters in the device name are ignored. If no device name has been entered, only ! is sent. Finally the Titrino sends the information which node has triggered the message.
Example: !John".T.Si": The message was triggered from instrument "John",
node .T.Si
3.2.2.87. Setup.PowerOn $G
Simulation of 'power on'. The device has the same status as after power on:
The cylinder is filled, error messages deleted and the current sample number
set to 0. The method last used is ready for operation.
3.2.2.88. Setup.Initialise $G
Setup.Initialise.Select ActMeth, Silo, Calib, Config,
Assembly, Setup, All
Setting of default values for the following areas:
ActMeth: Current method. Parameters, calculations, and assignments for
the data output, operands C01...C19.
Silo: The silo memory is deleted. Same function as delete entire silo.
Calib: pH calibration data for all measuring inputs.
Config: All values under &Config.
Assembly: All values under &Assembly.
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93
3.2. Remote control commands
Setup: All values under &Setup.
All: Values of the entire tree (except silo and method memory).
The action must be triggered with &Setup.Initalise $G.
3.2.2.89. Setup.RamInit $G
Initializes instrument, see page 116. All parameters are set to their default
value and error messages are cleared. The user and silo memories will be deleted. The user memory contains the default user methods from Metrohm.
3.2.2.90. Setup.InstrNo $G
Setup.InstrNo.Value serial number, 8 ASCII characters
Instrument identification for report output.
Set the value with &Setup.InstrNo $G .
3.2.2.91. Diagnose.Report $G
Output of the report containing the adjustment parameters. The Titrino has to
be in its inactive basic state.
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94
3.3 Properties of the RS 232 Interface
3.3 Properties of the RS 232 Interface
Data Transfer Protocol
The Titrino is configured as DTE (Data Terminal Equipment).
The RS 232 interface has the following technical specifications:
• Data interface according to the RS 232C standard, adjustable transfer pa-
rameters, see page 10.
• Max. line length: 512 characters
• Control characters: C
L
XON (ASCII DEC 17)
XOFF (ASCII DEC 19)
• Cable length: max. approx. 15 m
Start 7 or 8 Data Bit Parity Bit 1 or 2 Stop Bit
Only a shielded data cable (for example, METROHM D.104.0201) may be
used to couple the Titrino with foreign devices. The cable shield must be
properly grounded on both instruments (pay attention to current loops; always
ground in a star-head formation). Only plugs with sufficient shielding may be
used (for example, METROHM K.210.0381 with K.210.9045).
(ASCII DEC 13)
R
(ASCII DEC 10)
F
3.3.1 Handshake
Software-Handshake, SWchar
Handshake inputs on the Titrino (CTS, DSR, DCD) are not checked.
Handshake outputs (DTR, RTS) are set by the Titrino.
As soon as a L
extra characters and store them.
However, the Titrino also sends XOFF if its input buffer contains 60 characters. After this, it can receive maximum 22 extra characters (incl. L
If the transmission is interrupted for the time of 4 characters after the Titrino
has sent XOFF, the string received earlier is processed even if no L
sent.
is recognized, the Titrino sends XOFF. It can then receive 6
F
).
F
has been
F
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95
3.3 Properties of the RS 232 Interface
X
X
X
X
X
Titrino as Receiver :
Titrino external device
RxD
60 characters
TxD
max. 22
characters
OFF
Time of 4
characters
String is
processed
L
F
Data output
ON
Time
OFF
Data input
400 µs
Titrino as Sender :
Titrino external device
OFF
RxD
ON
Data output
TxD
max. 4
characters
Data output
disabled
Data output
enabled
L
F
Time
Data input
Software-Handshake, SWline
Handshake input ports on the Titrino (CTS, DSR, DCD) are not checked.
Handshake output ports (DTR, RTS) are set by the Titrino.
The Titrino is equipped with an input buffer that can accommodate a string of
up to 80 characters + C
. As soon as an LF is recognized, the Titrino sends
RLF
XOFF. After this, it can receive maximum 6 extra characters and store them.
The string sent previously is now processed by the Titrino. Afterwards, the Titrino sends XON and is again ready to receive.
719 S Titrino
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