Hach BioTector B3500e, Руководство пользователя

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4. COMMISSIONING MENU SETTINGS:
Using the Commissioning menus (see Section 8.2 COMMISSIONING MENU ), follow below
procedures to set up the BioTector for specific site requirements:
In Reaction Time menu, program the INTERVAL time depending on the required sample analysis
frequency.
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In Sample Pump menu, set the correct Sample Pump FORWARD and REVERSE times. These
times are unique for each site depending on the distance between the sample and the BioTector.
Sample Pump times can be set individually for each stream in the Sample Pump menu. Adjust the
Sample Pump FORWARD times and confirm that sample liquid coming from each stream
bypasses the system and drips into the drain.
In order to establish the required Sample Pump forward and reverse times, go to Simulate menu
and run SAMPLE PUMP reverse (REV) and confirm that the sample tube is completely empty.
Run SAMPLE PUMP forward (FWD) and measure the time (in seconds) required for a fresh
sample to fill and flow out through the bypass port. Add 10 seconds to the measured time and
enter this value as the FORWARD time in the Sample Pump menu. The sample pump REVERSE
time will be automatically set as 10 seconds greater than the FORWARD time.
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Go to Process Test, Sample Pump Test menu and select the PUMP FORWARD TEST and PUMP
REVERSE TEST functions to confirm that the programmed sample pump times are correct to
properly fill and empty the sample tube of each stream.
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If the BioTector SAMPLER is used, then the default sampler time is 100s. This default time must
not be changed unless the time programmed in the PLC of the sampler is also changed. See
BioTector Sampler User Manual for details.
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In COD/BOD program menu, if COD and/or BOD parameter is required, program DISPLAY with
the required parameter. Install the necessary STREAM and TOC FACTORS for each stream.
If
required, the factors for each stream can be obtained following the procedures described in information sheet
“I030. TOC to COD or BOD Correlation Method”, which is available in the MMC/SD card shipped with the
BioTector.
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In New Reagents Program menu, confirm the factory settings are suitable for site requirements. _____
In Reagents Monitor menu, if required, activate/deactivate the reagent monitoring function,
program the reagent volumes and set the relevant reagent warnings.
_____
In Autocal Program menu, if required, program the automatic zero and span calibration cycles. _____
In 4-20mA Program menu, set the required parameter for each stream. Set the full scale
concentration level for each 4-20mA channel. Full scale should be compatible with the external
process control device (e.g. DCS) and BioTector calibrated ranges. In order to see BioTector
calibrated ranges, see System Range Data screen ( 2.2.3 System Range Data Screen ) and Stream
Program menu ( 8.2.3 Stream Program ).
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In Alarm Program menu, set the available relays to the required ALARM levels for each stream. If
necessary, to modify the relay parameters and conditions, go to Output Devices menu. See
section 8.3.5 Output Devices for details.
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Go to Signal Simulate menu and test 4-20mA signals. Simulate 1mA, 4mA, 12mA and 20mA
signals and confirm that the signals are received by the external process control device (e.g.
DCS). Simulate all digital input and output signals and confirm correct operation.
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