Publication 5390-001 Revision B
11
Harvard Apparatus Model 33 Twin Syringe Pump User's Manual
Valve Control Box
Applicable to Following Models
Model No. Description
MA1-55-3334 Supplied with 1/8" ID, 1/4" OD silastic tubing and connector to syringe
MA1-55-3335 Supplied with 1/4" OD 304 stainless steel tubing with Swagelok fittings
Setting up Valve
Set up consists of:
1. Pump to Valve Electrical Connections:
The cable fitted with a male 3 pin connector must be connected to the
female connector on the rear of the Model 33. The Model 33 should be
turned off when making/breaking this connection.
2. Valve tubing to syringe hook up:
The valve(s) are de-energized when the front mechanism (#1) is running in
the INFUSE direction. The syringe on the #1 mechanism when infusing
should therefore be connected to the lower tubing in the pinch valve (see fig-
ures on next page).
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