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1.0 Software Overview:
Main Menu
The FilterTec Plus main menu consists of
five (5) operational modes
as shown on the
previous page. Use the
“Up”
and
“Down”
keys to scroll through the main menu. Press the
“Select”
key to enter a chosen operational mode, i.e. CONSTANT RATE. Pressing the “Select”
key enters the 1
st
submenu level, which provides access to the
“Exec”
,
“Edit”
, and
“Prime”
functions in most modes. In the “Edit” submenu, the pump parameters are selected. In the
“Exec” submenu, the parameters chosen under “Edit” are executed. The “Prime” key runs the
pump when the key is held down to ‘prime’ the system and removes the air bubbles when
needed. Press the
“Exit”
key to return to the main menu. Pressing “Exit” repeatedly will always
return to the top of the menu.
CONSTANT RATE Mode:
This operation mode allows implementation of a
Constant Rate /
Constant Pressure Filtration,
i.e. a user selected rate (filtration feed rate) is maintained
during
the initial
phase of the filtration. If the “
Pmaintain
” alarm is enabled, the unit will change from
constant rate to constant pressure control at a user defined pressure level. In the “Edit”
submenu
first select the pump tubing you want to use in your application. Based upon your
tube
size selection,
the FilterTec Plus will access factory installed calibration tables, which relate the
pump output in ml/min. to pump motor speed. Please note: the flow rate calibration data can be
updated by the user utilizing the star (
) key. This provides simple modification of the factory-
installed data for a particular motor/pump head/tubing combination.
Several user-programmable Alarms can be selected: Cumulative Volume; Hi Temperature; Run
Time; Lo-Pressure; Hi-Pressure; Filtrate Weight, or Low-Flow.
Each alarm can be: 1. Off (Disabled), 2. Alarm Only (Provide auditory alarm), or 3. Stop Pump
(Provide an auditory alarm and stop), and are triggered when alarm limits are exceeded. The Hi-
Pressure alarm has one additional option, 4. Pmaintain, which changes from rate to pressure
control at a user defined limit. The FilterTec Plus simultaneously monitors and displays up to
three line pressures needed for filter train evaluation as provided by the three SciPres
Disposable pressure sensors. The Hi and Low Pressure alarms relate to the pressure sensor
chosen as the “Pressure Source” as defined in the SETUP: Pump, Press Sensor
submenu
At user-defined intervals, all filter/pump parameters can be printed out or send to a PC for
archiving. Print parameters are set in the SETUP: Printer. The balance allows quantitative
filtrate collection by weight, use of the Filtrate Weight alarm mentioned above, along with the
display and printout of the Collection Rate.
CONSTANT PRESSURE Mode:
This operation mode allows you to implement
Constant
Pressure Filtration,
i.e. a user selected filter backpressure is maintained by modulating the
pump output. When the filtration device starts to plug up, the FilterTec Plus will maintain the
selected filter backpressure by automatically decreasing the feed rate. The FilterTec Plus
simultaneously monitors and displays up to three line pressures as provided by the 3 SciPres
disposable pressure sensors. The process can be controlled by any one of the 3 line pressures
as selected by the user in the
SETUP: Pump, Press Sensor; Source
submenu. The filter
backpressure setting,
Pump Pressure
, is selected in the “Edit” submenu. This setting allows
you to choose a safe backpressure that also is consistent with a desired filtrate flow rate.
NOTE:
All Alarm, Print and Balance parameters are the same as discussed in CONSTANT
RATE Mode, except for the replacement of the Hi-Pressure Alarm with a Low-Flow Alarm.
PROGRAMMABLE R-P Mode:
This mode allows you to implement variable Feed Rates or
Pressure Rates that change over time in a Stepped (immediate change) or Scanned (ramped)
Содержание SciLog FilterTec Plus
Страница 1: ...1 SciLog FilterTec Plus Installation Operation Maintenance Instructions ...
Страница 39: ...39 ...
Страница 62: ...62 Appendix A Application Examples ...
Страница 66: ...66 Appendix B Troubleshooting ...