23
5. Preparations
5.1. Bath
fluids
Caution:
Carefully read the safety data sheet of the bath liquid used, particularly with regard
to the fire point!
If a bath fluid with a fire point of
≤
65 °C is used, only supervised operation is
possible.
Recommended bath liquids for external, c l o s e d s y s t e m s :
See website for list of recommended bath fluids.
Contact: see page 6
Caution:
Fire or other dangers when using bath fluids that are not recommended:
Please contact JULABO before using other than recommended bath liquids.
JULABO assumes no liability for damage caused by the selection of an unsuitable
bath fluid.
Unsuitable bath fluids are fluids which, e.g.,
•
are highly viscous
(much higher than 50 mm2 / S at the respective working temperature)
•
have a low viscosity and have creep characteristics
•
have corrosive characteristics or
•
tend to crack.
No liability for use of other bath fluids!
ATTENTION:
The maximum permissible viscosity is 50 mm2 / S.
Caution:
The use of water in purified or unpurified form is not allowed.
Examples: Tap water, distilled water, water-glycol mixture, CaCl
2
-brine
Important notice concerning the recommended bath liquids:
•
Bath liquids with a range of application above the fire point ?
•
This temperature system is mainly operated in a closed external system (loop
circuit). The contact of the bath liquid with atmospheric oxygen only takes place in
the internal reservoir, which is not located directly in the termperature circuit.
•
A safety device supervises and controls the the temperature in the internal
reservoir.
•
The temperature of the bath liquid is maintained constant at approx. +20°C
•
The safety device with an adjustable temperature value >RES< works
independently from the control circuit. When actuating this safety device (too
much hot fluid streams into the internal reservoir) the temperature system is
switched off all-polo and permanently.
•
Adjust the safety temperature >RES< at at least 20 K below the fire point of
the bath liquid.
Summary of Contents for Presto Plus LH 47
Page 20: ...Operating controls and functional elements 20 Rear...
Page 41: ...41...
