SSI America BINARY SOLVENT DELIVERY MODULE 90-2581 REV B - Manual (Page 15)

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3.1.1.3 Status LEDs
Q ml/min When lit, the digital display shows flow rate in mL/min.
Q PSI When lit, the digital display shows system pressure in psi.
Q HI PR When lit, the display shows the user-set upper pressure limit in psi.
Q LO PR When lit, the display shows the user-set lower pressure limit in psi.
Q RUN Lights to indicate that the pump is running.
Q FAULT Lights when a fault occurs and stops the pump.
3.1.1.2 Power-up Configuration
Non-volatile Memory Reset: If the pump is operating erratically,
there is the possibility that the memory has been corrupted. To reset
the memory and restore the pump to it's default parameters, press and
hold the UP-ARROW button when the power is switched on. Release
the button when the display reads "rES". The parameters stored in
non-volatile memory, i.e., the flowrate, the pressure compensation, the
voltage/frequency select, the lower pressure limit, and the upper
pressure limit will be set to the factory default values. The head type
setting is the only parameter not changed by the non-volatile memory
reset function. If the firmware is upgraded to a newer version, a non-
volatile memory reset will automatically occur the first time the power
is switched on.
3.1.1.5 Power-Up Tests
Display Software Version Mode: The software version can be
displayed during power-up by pressing and holding the RUN/STOP
and the UP-ARROW buttons when the power is switched on. Release
the buttons when the display reads "UEr". The decimal point number
displayed on the display is the software version. To exit this mode,
press the RUN/STOP button.