Instruction Manual
22 Operation
LED Indicators
There are four LEDs located on the front of the pump that indicate the operation status of the pump. All
four lights are green; the indicators are defined by letter and position on the pump (definitions appear
below). They may be used during troubleshooting to help identify a failure. Table 3-1 describes the
LED indicator status. Table 3-2 describes common conditions based on LED status.
Table 3-1 LED Indicator Status
LED Indicator Location ON indicates OFF indicates
PRIME Prime In prime position Not in prime position
FULL Home At home sensor Not at home sensor
LIMIT End of Travel At end of piston travel
Not at the end of
piston travel
STOPCOCK Stopcock
Stopcock in either dispense
or refill position
Stopcock in transition
Table 3-2 Common Conditions
Condition LED Indicator and Status
P H F S
Priming Position
0 0
Dispense Ready
0 0 0
Chamber Empty
0 0
0 = OFF
= ON
Figure 3-6 LED Indicators
LED Indicators










