Stamolys CA71CODcr
Operation
Hauser
23
5.2.2
AUTO MEASURING
The actions "calibration" and "measuring" are triggered by time-control.
The respective action is displayed in the LC display. The most recently registered concentration
value is displayed until the end of the next measurement.
Otherwise, "wait" is displayed when
• the time of the first measurement has not yet been reached or
• the measuring interval has not yet expired.
"Measuring" flashes when the analyzer is ready for the next measurement but has not yet
received the enable signal from the sample collector or the sample conditioning unit.
5.2.3
CONFIGURATION
Some settings that can be made in this menu affect the defaults in the PARAMETER ENTRY menu.
►
Complete the CONFIGURATION menu first during initial start-up.
Menu item
Range of adjustment
(factory settings in bold)
Display
Info
Code number
03
Input 03.
If an incorrect code is entered the program exits the sub-
menu.
Photometer
Depending on specification
COD-A
COD-B
The setting displays the parameter that is being measured.
This is defined by the product specification and set in this
menu item at the factory. Do not change the value.
Otherwise, you will receive an "Incorrect photometer"
error message.
Default settings
Yes / no
If "yes" is selected, all the settings are reset to the factory
settings.
You must set the current date and time (scroll through
the menu, third-last point).
In the event of a reset, the date for the 1st calibration and
the 1st flush is set to the following day.
Measuring unit
mg/l O
2
The measuring unit selected depends on the type of
photometer. This setting also affects the scope of the
measuring range.
no selection
Calibrate slope
yes / no
Manual calibration. Use the K key to start measuring the
standard solution to determine the calibration factor
(slope of the calibration lines).
Calibration factor
1)
0.20 to 5.00
1.00
The calibration factor is the ratio of the measured
concentration of the calibration standard to the
predefined concentration of the standard (see
"PARAMETER ENTRY", calibration solution). The
deviation results from factors such as reagent aging, aging
of constructive components, etc.
The calibration factor compensates for these effects. CA
71 checks the registered calibration factor logically. If the
factor is outside of the error tolerance, the calibration is
automatically repeated. If the value is still outside the
tolerance range after repeating calibration, an error
message appears and the analyzer continues to work with
the most recently registered, logically correct factor.
The last 100 calibration factors are stored in the memory
with the date and time and can be retrieved by pressing
the
J
key.
The calibration factor can be changed manually.
Concentration offset
0.00
to 50.0 mg/l O
2
The offset gives users the option of adapting to an
external comparison measurement.
(Change the sign with the
J
key.)
COD-A
Photometer
Unit of measure
mg/l O2
Calibrate slope
y:
?
+
n: E
