JULABO LH 85 High Dynamic Temperature System - Manual (Page 27)

27
Caution:
Securely attach all tubing to prevent slipping.
 Remove the cap nuts from the pump connectors (13, 14) and using
tubing connect the external system
(M16x1 / wrench 19 mm). To prevent the formation of bubbles in the
loop circuit, the pressure line (13) is to be connected to the lower
nozzle of the external system. Also see the description on page 22
 Connect a piece of tubing to the overflow connector (15) and drain
into a suitable vessel. (M16x1 / wrench 19 mm), which always has to
be placed lower thant the exit „Overflow“.(M16x1 / wrench 19 mm)
 If required, the
connector (16) may be
used for connecting an
expansion vessel.
(M16x1 / wrench 19
mm)
The use of an
expansion vessel is
depending on the
highest temperature and
the volume of the bath
liquid in the loop circuit.
(see diagram 1 page
24).
 Close the expansion
vessel with the cover.

Order No. 8 970 830 Expansion vessel
Note:
At the desired highest temperature, drain overflowing bath liquid into a
suitable vessel via the connector (15). If at the desired lowest
temperature, low liquid level alarm is not triggered, there is no need to
use an external expansion vessel.
Important: Leakage on shaft sealing
The shaft sealings of the pump are never absolutely tight. But this does
not have an impact on the proper functioning of the instrument. The
slight leakage that appears ensures good sliding properties of the
sealing. Any excess fluid is drained via the overflow connector (15).