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Drain
Ensure the temperature of the bath fluid is safe before draining the unit.
The unit is equipped with a drain located at the back of the unit at the base of
the bath. The drain has ¼" MPT and is capped with a stainless steel plug. To
drain the reservoir simply remove the cap.
To assure proper fit when replacing the cap, be sure to line the threads with
1½ turns of Teflon
®
tape.
Fluids
Never use flammable or corrosive fluids with this unit.
The selected fluid must have a viscosity of 50 centistokes or less at the
lowest operating temperature.
Filtered tap water is the recommended fluid for operation from +8°C to +80°C.
See Water Quality Standards and Recommendation on the next page.
For operation from -30°C to +8°C, a 50/50 mixture, by volume, of tap water
and laboratory grade ethylene glycol is suggested.
Above +80°C and below -30°C, the user is responsible for fluids used.
Never use pure ethylene glycol as a bath fluid. Above 80°C the user is
responsible for the fluid used.
Filling
Requirements
The bath work area has a high and low level marker to guide filling. The
markers are 1 inch horizontal slits located in the center of the stainless steel
baffle separating the work area and the pump assembly. The correct fluid
level falls between these two markers. The heating and cooling coils will be
exposed and may become damaged if the correct fluid level is not provided.
When pumping to an external system, keep extra fluid on hand to maintain
the proper level in both the circulating lines and the external system.
Never run the unit when the work area is empty.
