Hach BioTector B3500dw User Manual page 72

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5. ZERO and SPAN CALIBRATION:
Go to Operation, Reagents Setup, Install New Reagents menu, confirm the menu items and select
the "START NEW REAGENT CYCLE" function for the BioTector to prime the reagents and set the
Zero Adjust (zero offset) values automatically. See Section
and
8.2.5
New Reagents Program
Observe that the automatic pressure/flow test passes when analyzer is started up. See Section
2.1.3
Analysis Data Screen
It is recommended to check the zero response. When the Zero Calibration cycle is completed, go
to Operation, Start Stop menu (see Section
analyzer. Go to Zero Calibration menu and select RUN ZERO CHECK function. Alternatively, to
confirm that the zero response is correct, connect DIW to the manual sample port and run 5
analysis cycles on DIW using the Manual Program menu.
point for SAMPLE 1. If the BioTector has been in storage for a long period, and if the zero readings are not
satisfactory, a second "Install New Reagents" cycle may be required.)
If the zero readings and CO
1
Confirm that the pH in the reactor is correct, using the test sequence in the pH Test menu. See
Section
8.1.1.5
pH Test
2
Check for a pH of <2 during the TIC phase.
3
Check for a pH of >12 during the Base Oxidation phase.
4
Check for a pH of <2 during the TOC phase.
5
Run a further 2 reactions on DIW.
Run an "Install New Reagents" cycle on the system to adjust the zero offset.
6
Program the concentration of the standard solution in the Span Calibration menu
Calibration). The concentration of the calibration standard used must be typically greater than 50%
of the full scale of the RANGE the calibration is carried out. In order to see BioTector calibrated
ranges, see System Range Data screen
standard solution, see procedures described in Section
"R009. Standard Solutions for BioTector Multi-component Analyzer", which is available inside the MMC/SD
card shipped with the BioTector.)
Connect the standard solution to the MANUAL/CALIBRATION port. If these ports are not
available, use the SAMPLE 1 port. It is recommended that the standard solution should be located
at the same height as the sample chamber. Run the Span Calibration cycle using the RUN SPAN
CALIBRATION function in Span Calibration menu. A minimum of five complete analysis cycles is
recommended for the span calibration.
Download BioTector "All Data" in text format into the MMC/SD card using the SEND ALL DATA
function in Data Output menu to record all changes made in the system configuration. See Section
8.1.4
Data Output
for details.
Go to Start Stop menu and start the BioTector. When the BioTector is running online, carefully
observe the first two or three reactions and confirm that the CO
for details.
and
8.3.4.5
2.2.1
peaks are correct, items from 1 to 6 below can be skipped.
2
for details.
(2.2.3 System Range Data
2.2.2.1
Pressure/Flow Test Program
Start Stop
for details) and stop the
(If manual port is not available, use the input
6.2
Calibration Standards
peaks are correct.
2
Install
New
Reagents
for details.
(2.3.2
Span
Screen).
(To prepare a
or information sheet
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