4 2-channel open-loop control – Hach-Lange WTOS P-RTC User Manual
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Parameterization and operation
4.3.4
2-channel open-loop control
In addition to the 1-channel version, a 2-channel version is also
available. The 2-channel version is able to control 2 phosphate
precipitants separately.
All of the key parameters appear twice and are identified as
channel 1 and channel 2.
In contrast to the 1-channel version, a percentage factor for
distribution of the profile (
DIST PROFILE
) has been added. If
measurement signals drop out, the percentage factor
DIST
PROFILE
distributes the influent waste water to the precipitant.
CONFIGURE (CONTINUE)
PRECIPITANT
METAL CONTENT
Metal concentration in precipitant (refer to
)
[g/L]
ATOMIC WEIGHT
Relative atomic weight of active precipitant substance (refer to
[g/mol]
MODBUS
ADDRESS
Start address of an RTC module within the MODBUS network. Default is 41. This
setting must only be changed by the manufacturer's service department (
).
(Refer to
)
DATA ORDER
Specifies the register order within a double word. Default is NORMAL. This setting
must only be changed by the manufacturer's service department (Refer to
)
DATALOG INTRVL
Indicates the interval in which the data is saved in the log file
[min]
MAINTENANCE
RTC DATA
RTC MEASUREMEN
Displays up to 5 measured values; additional values can be selected by scrolling
RTC ACTUAT VAR
Displays up to 5 actuating variables; additional variables can be selected by scrolling
DIAG/TEST
EEPROM
Hardware test
RTC COMM TO
Communication time-out
RTC CRC
Communication checksum
LOCATION
A location name can be issued here for better identification of the RTC module e.g.
activation 2
SOFTWARE VERSION
Version number for service
RTC MODE
Indicates the mode set in the RTC module.
1-channel open-loop control