Eicom ENO-30, User Manual

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7 | P a g e
2-4. Pump Seal Wash
Sy ringe
Check
Valve
Check
Valve
Tubing
Stop
The ENO-30 has a pump seal wash function, which greatly expands the pump seal lifetime, and
prevents damage to the inside of the pump. Small amount of salt containing liquid can leak
passed the seal. If it is allowed to crystallize, the salt crystals will scratch the piston and seal,
causing premature wear and eventually leakage.
Please purge the washing tube with 2-3 mL of purified water before and after running the
pump.
The inlet end of this tube should be set at the bottom of a bottle containing super pure water.
The outlet can be routed back to the same bottle or directly to waste. Be sure to change this
water frequently to prevent bacterial growth and the buildup of salts and acids.
To begin the flow of water through the wash ports at the back of the pump heads, you must
prime the fluid path with the syringe.
1. Close the tubing roller clamp and aspirate with the syringe.
2. Open the tubing stop and gently dispense the water. Do not force the water too aggressively
as that can cause issues inside the pump. If the water doesn’t flow easily, the tubing may be
clogged or damaged. Check tubing and replace. Leave the syringe in place.
3. Now you can start the pumps. You should see drops of water flowing from the outlet as the
pumps run.