42 Before operation
Rotate the stroke length adjusting knob
and adjust a
fl
ow rate while the pump is
running.
Before a long period of stoppage (One month or more)
Clean the insides of pump head and tubing.
• Run the pump with clean water for about thirty minutes to rinse the insides of
the pump head and tubing.
Before unplugging the pump
• Always stop the pump by key operation. Wait for three seconds before un-
plugging the pump. Otherwise, the last key operation to stop the pump may
not be put in memory. In this case the pump unintentionally starts to run as
powered on, discharging liquid.
When the pump does not transfer liquid at resuming operation.
• Clean the valve sets, removing foreign matters.
• If gas is in the pump head, expel gas and readjust the
fl
ow rate. See "Degas-
sing" on page 33 and "Flow rate adjustment" on page 38 for detail.
Stroke length adjusting knob
2
Summary of Contents for EHN-R
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