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(11)
Press the START/STOP key to confirm the operation mode and
value settings. This will also return to the WAIT mode. The
WAIT light will illuminate and the backlight behind SET will
go out.
(12)
IMPORTANT: Changing the pump speed in the WAIT (or
MAN) mode using the and keys sets the MAX operating
speed the pump will operate in the Digital mode (MULT). This
can be used to help moderate the pump output and reduce slug
feeding. For example, if the pump is set to multiply by 10 and
a max of 3 input pulses/min are expected from a flowmeter,
instead of having the pump stroke 10 times in 2 seconds for
each input pulse (pump set at 360SPM), the speed can be
reduced to 40 SPM and the pump will take 15 seconds to
evenly pump in the 10 strokes – the pump will be operating 45
seconds out of 60 instead of 6 out of 60.
(13)
Press the EXT button to start EXT pump operation. The WAIT
backlight will go out, EXT will become backlit, and the ON
lamp will blink with every stroke. The pump will operate at the
speed corresponding to the MULT or DIV setting of the
incoming pulses. To stop the pump, press the STOP/START
key once and the pump will enter the WAIT mode.
Pressing the EXT again will restart the pump in EXT mode.
(see wiring section to ensure the digital input wiring is correct)
19
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