JULABO HT30-M1 High Temperature Circulator - Manual (Page 31)

HT30-M1
31
5.8. Countercooling
Caution:
Securely attach all tubing to prevent slipping.
From a working temperature of 200°C on always work with counter-cooling.
HT30
(45) (44)
Thread M12 /
∠37 +
Barbed fittings 8 mm ID
CU
(47) (46)
Tube connections 10 mm ID
On the HT30-circulator we distinguish two different cooling devices:
(Cooling water see page 13)
1. A cooling coil in the cooling zone for cooling water.
Without C.U.-cooling unit
The cooling wate is directly connected to the connections (44,
45).
Flow of cooling water: app. 2 l/min at >150 °C.
or
A magnetic valve for clocked cooling water is connected to the
connection (44)
When required the control exit opens and closes the magnetic
valve.
JULABO Order no..
8 980 704 Magnetic valve
With assembled C.U.-cooling unit
the cooling water is connected to the connections (47, 46)
The flow of cooling water is controlled automatically.
HT60 Returnf (52)
HT60 Feed (53 )
Thread M16x1
2. A cooling coil in the C.U.-cooling unit for rapid cool-down of the
tempering liquid
Via the pump connections (52, 53) the tempering liquid is led
through the CU-unit.
The heat is drained via the cooling water (47).
Comments:
• With an assembled C.U.-cooling unit the menu-point CoolingMax has
to be set to a value of >0. So, the automatic control of the cooling can
become active.
• In the C.U.-unit water and oil temperature are supervised at each
outflow.
The oil flow-through is interrupted
when the oil temperature is app. 150 °C and
the water temperature is app. 80 °C.
C.U.-cooling unit:
Cooling capacity at 2 l/min flow of cooling water.
Temperature [°C] 350 250 150 75
Cooling capacity [kW] 12 8 4 1