Physitemp Instruments PTU-3 - Manual

APPENDIX 1
OPERATING INSTRUCTIONS FOR PHYSITEMP
PUMP AND TANK UNIT, PTU-3
1. Unscrew cap. Fill reservoir with 5 gallons of distilled water.
2. Connect extension tubing to the back of the controller and the connections on the tank. Direction
of the flow is not important. All water fittings are automatically self-sealing when disconnected to pre-
vent water spills.
3. Connect the AC line cord to the receptacle on the pump and to the outlet on the rear of the con-
troller. This ensures that water is always flowing when the controller is on.
4. Switch on the controller.
GENERAL INSTRUCTIONS
The use of distilled water is recommended. This avoids discoloration of the tubing due to organic matter
in untreated water. A purification agent can be added to the water. Any commercially available dehumid-
ifier treatment in liquid, powder or tablet form may be used.
If the stage will be operated for long periods, water temperature may gradually increase. Ice cubes can
be added to the tank to maintain low temperature.
The tank should not be placed more than three feet below the stage itself.
When filling the reservoir for the first time, or when refilling it, a small amount of air may become
trapped in the pump housing and cause intermittent noise, cavitation and a reduced flow rate. If this
occurs, screw the cap firmly onto the tank and, while pump is running, tip it at an angle of approximate-
ly 45 degrees to the horizontal in all four directions as shown below. This will eliminate air in the pump
housing and restore flow to its maximum.
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EB BFS-MPCSA 6310 Rev2 04/07