Preparations
10
5.4. Temperature application to external systems
Temperature application to external, closed systems
The circulator is used for temperature application to external,
closed systems (loop circuit) with simultaneous temperature
application in the circulator bath.
• Unscrew the M 16 x 1 collar nuts on the pump connectors
(pressure pump , suction pump ) with a 19 mm (3/4")
wrench and remove the sealing disks. Using the collar nuts,
screw on the tubing connection fittings (for tubing 8 mm or 12
mm in diameter) delivered with the unit and tighten firmly.
• Push on the tubings, and secure with tube clamps.
• Attach the tubings to the connectors of the external closed
system, e.g., an instrument with a pressure-resistant temperature
jacket or a temperature coil, and fasten with tube clamps to
prevent slipping.
Temperature application to external, open systems
K
S
D
H
S = Suction pump connection
D = Pressure pump connection
K = Float
H = Height adjustment
These circulators are equipped with both a pressure and suction
pump for external temperature application in open systems.
Differing flow rates of the pressure and suction pumps should be
compensated. To maintain a constant liquid level, the JULABO
"D+S" Level Adapter is recommended for the external bath tank.
The flow rate of the pressure pump will be then regulated by a
built-in float device. The liquid level may be changed by a height
adjustment on the "D+S" Level Adapter.
Order No. 8 970 410 "D+S" Level Adapter
When working at temperatures below 0 °C and using the "D+S" Level Adapter do
not use oil as the bath liquid. Condensing air will result in the formation of ice and
thus affects the function of the float.
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