Operating Instructions WBL-118 Refrigerated bath and circulator
6
Class I/NFL
Caution, Risk of fire!
The equipment is designed for operation with non-flammable heat transfer liquids
only! Water and mixture of water and glycol are the most popular non-flammable
heat transfer liquids appropriate for the equipment.
No silicone oil is allowed for use with this series of the equipment. The internal
silicone rubber parts may swell when in contact with silicone oil resulting in leakage of
the liquid!
For engineering change related to the use of silicone oil or other liquid, consult your
local MRC distributor or MRC technician! The use of inappropriate liquid may
adversely affect the performance and safety of the equipment!
The circulation of the heat transfer liquid is important for performance and safety!
The kinematic viscosity, immersion and distribution of the specimen and, flow
resistance of the application system and the circulating tubing significantly influence
the circulation of the liquid!
The first time commissioned for use or when exchange of the heat transfer liquid and,
immediately after startup of the circulating pump, check if any liquid leakage exists in
the external circulating tubing and fittings, if head pressure of the pump and flow of
the heat transfer liquid are in their rated range and, if the liquid level is in its range for
safe operation!
Mixing and use of heat transfer liquids with different physical and/or chemical
properties may adversely affect the performance and safety of the equipment! The
liquid shall be completely drained and removed before attempting to charge the
other. When necessary, consult MRC or supplier of the liquid for particular
application!
Never touch or attempt to handle the heat transfer liquid with temperature higher
than +60
°
C! Caution, burn hazard!
No draining of the heat transfer liquid with potential of chemical or biological hazard!
Collect and identify the heat transfer liquid for future use! Consult MRC or
manufacturer of the liquid for proper disposal!
Install an extraction system over the bath opening, if the operating of the equipment
could lead to liberation of hazardous air or gas mixture, for example the evaporation
of the heat transfer liquid! The rating of the fume hood shall be at least the maximum
possible exhausting temperature! If necessary for safety, additional temperature
limiting and warning devices, condensate accumulator shall be installed for the
extraction system!
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