Watson Marlow Pumps 505LA Bedienungsanleitung Seite 26

505L: Using twin inlet tubes
Improved flow rates may be obtained by fitting two inlet tubes and using a Y connector to obtain a
smooth flow.
Lift the two levers at either side of the pumphead and remove the track.
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Remove the mushroom peg on the suction side of the pump by turning it counter- clockwise
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through one quarter turn and withdrawing it. Do not remove the peg on the delivery side.
Fit two lengths of tube to the top branches of a Y connector. Lay this assembly across the rotor, with
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the Y connector over the end peg on the delivery side.
Tube clamps are available, marked with the nominal bore for their intended tubing. Pull the two
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lengths of tube taut and firmly secure them with a correctly-sized clamp on the suction side of the
pumphead, using the bayonet-style fixing previously used for the mushroom peg. You may find it
convenient to insert the tubes into the arches of the clamp before securing the clamp.
Replace the track and secure it by closing the two levers.
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Ensure the braided earth lead is securely connected to both the track and pumphead body
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26 PB0379:m-505atex-en-04