Ratek TH8500 Programmable Immersion Heater Circulator - User Manual
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CAUTION
Do not use abrasive cleaners or solvents on the Immersion Heater Circulator as these may break down certain
components of it’s construction, reducing it’s life and potentially creating a hazardous situation. Use only a mild
household detergent or laboratory sterilization agent when cleaning the Immersion Heater Circulator.
CAUTION
If the Immersion Heater Circulator has been used with any dangerous, chemical or biological substances it should be
decontaminated prior to cleaning. Decontaminate the Immersion Heater Circulator using a decontamination procedure
appropriate to the contaminant, however in all cases ensure the following :
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No decontamination or cleaning agents are used which could cause a hazardous situation to arise as a result
of a reaction with parts of the Immersion Heater Circulator or with any materials contained in it. For
example, substances that may compromise the integrity or function of electrical insulation, electrical
components, stainless steel components or water seals.
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Ratek are consulted prior to decontamination or cleaning being undertaken if there is any doubt about the
compatibility of decontamination or cleaning agents with parts of the Immersion Heater Circulator or with
any materials contained in it.
CAUTION
When cleaning the unit, only use a damp sponge.
Do not use a sodden wet sponge.
Do not make any part of the
control panel, any exposed control or receptacle or any part of the Immersion Heater Circulator excessively wet. If
these receptacles and controls remain wet once electrical power is restored they can create a hazardous situation
sufficient to cause serious injury or risk to life due to electrical shock. Always ensure the unit and in particular all
controls and switches are completely dry before restoring electrical power.
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Turn off the Mains Power Switch
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Unplug the equipment from the mains power supply outlet.
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Using a mild detergent and damp sponge, clean around the element and pump being careful not to knock the over-
temperature safety capillary bulb which is clipped to the element. Pay particular attention to any loose particles
that may lead to or accelerate corrosion.
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The bottom plate of the pump head may be removed by loosening 3 screws with a phillips head screwdriver to allow
access to remove any debris from around the pump impellor. Do not remove the impellor. Refit the pump cover
once clean.
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Once the Immersion Heater Circulator is clean, use a soft dry cloth to dry all surfaces of the Immersion Heater
Circulator paying particular attention to any controls or switches.
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Once cleaning has been completed, it may be re-installed and operated in accordance with this User Manual.
Maintenance
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Turn off the Mains Power Switch
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Unplug the equipment from the mains power supply outlet.
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Under good light, carefully inspect the mains power lead and check for any signs of wear, over-extension or
damage. If you believe the lead to be damaged in any way, contact your supplier to arrange for service.
