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PressureMAT User Guide
Revision 8
Page 28/48
Changing the Pulse Constant- Press the SELECT/PROG with Pulse Constant selected. The
default value is 100000 pulses/L which is the default value for the PDKT-FM
22WV flow meter with the ¼ inch hosebarb. To determine a pulse constant, set the pulse
constant to 1 and totalize flow through the flow meter rotor. The total flow registered on the
LCD is actually the number of pulses and this can be divided by the volume collected to yield
pulses/mL.
Changing the Alarm Point- Press the SELECT/PROG with the desired Alarm selected. Use
the RIGHT ARROW button on the keypad until you get to the digit that you want to change.
Use the DOWN ARROW/UP ARROW buttons on the keypad to change the values. To
change a digit from a numerical value to zero, change the value to a zero. When the correct
value has been selected, press the SELECT/PROG button and the value will be confirmed. To
escape from this menu without changing the value, press the BACK button and the main
channel menu will appear.
Alarm Valid- This value is set to a default of 0 seconds. This is the amount of time an alarm
condition must be present for an actual alarm to occur. In certain processes with rapidly
changing pressures, this value can be changed to prevent undesired false alarms. Press the
SELECT/PROG with Alarm Valid selected. Use the RIGHT ARROW button on the keypad
until you get to the digit that you want to change. Use the DOWN ARROW/UP ARROW
buttons on the keypad to change the values. To change a digit from a numerical value to zero,
change the value to a zero. When the correct value has been selected, press the
SELECT/PROG button and the value will be confirmed. To escape from this menu without
changing the value, press the BACK button and the main channel menu will appear.
Comm Port- Indicates data output function. There are several settings but the only active
settings are Off and Serial Report (Sio Report). If Off is selected, no data for the selected
channel is sent out the Serial Port. If Sio Report is selected, data is sent out the Serial RS232
port at the frequency programmed in the Global Settings Menu if set for automatic report
generation. Reports are not required to be automatically generated with the PressureMAT Data
Acquisition Software (see Appendix C for details on data collection from the PressureMAT).
Press the SELECT/PROG with Comm Port selected.
Use the DOWN ARROW/UP ARROW buttons on the keypad to change the settings. When
the correct setting has been selected, press the SELECT/PROG button and the value will be
confirmed. To escape from this menu without changing the value, press the BACK button and
the main channel menu will appear.
Note: See User Guide Appendix C on Data Collection to a PC