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manner. This is accomplished by entering step-by-step instructions from the FilterTec Plus front
panel buttons. You can enter and control by using Run, Stop, Time, Direction, R-Step, R-Scan,
P-Step, P-Scan, V, and W commands to have the system perform changing rates and
pressures, even rotary selector valve positions for switching buffers or collection vessels. A
sample program is included in this manual. All alarms used in CONSTANT RATE and
CONSTANT PRESSURE Modes except Run Time are available in PROGRAMMABLE R-P
Mode.
SETUP: This operational mode allows you to select various user preferences and interface
options. The Setup: Scale submenu provides electronic balance options. Balances that can
interface with the FilterTec Plus must have bi-directional serial communication, and NOT have
internal calibration or be “delta-range” models. Many Mettler, Ohaus, and Sartorius balances
can be used. The Setup: Clock submenu allows the user to set the time and date used in the
display. The Setup: System Test submenu allows checkout of FilterTec Plus outputs and
requires purchase of a special set of connectors to perform the test. Setup: Test Mode
provides an additional mode to test the I/O’s independently. Setup: Ethernet is used to set the
IP Address, Subnet Mask, and Gateway for Modbus TCP/IP communications. Setup: Printer is
used for setting up the printer/PC communications parameters as well as print time interval and
the print delay. Setup: Analog defines the ranges, alarms and limits for the three analog
channels available for data acquisition and reporting of 4-20 ma signals from detectors
equipped with analog outputs. Setup: Temperature allows the input of an offset value if needed
for the temperature input. Setup: Press. Sensor is used to zero the pressure sensors, set the
units (psi, bar, kpa), and choose the source for the pressure control and alarms. Setup: Pump
allows you to set various pump user preferences, most importantly the Motor RPM. Setup:
Scale2 and Scale3 are similar to Scale mentioned above.
MANUAL: Allows manual control of pump speed and direction, and will display the value of
sensor P1. This is very useful for initial testing to determine flow rate / pressure settings.
NOTE: CONSTANT RATE, CONSTANT PRESSURE, and PROGRAMMABLE R-P mode
Alarms and Printer parameters are not functional in the Manual mode.
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