Ratek TH8500 Programmable Immersion Heater Circulator - User Manual
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operated on a good, reliable supply of power at all times.
Note: The Immersion Heater Circulator should not be operated on the same electrical circuit as other high voltage
household appliances such as fridges, clothes dryers, washing machines or other continuous operation high voltage
devices. These types of devices can create power fluctuations that are undesirable for electrically sensitive
equipment. Consult your workplace administrator or electrical maintenance staff if you are unsure.
IMPORTANT : Use of an incorrect power supply will void the product warranty. If you are unsure about the
rating of your power supply, consult your workplace administrator or electrical maintenance staff to
determine if your power supply is suitable for use with this product before connecting the power lead.
CAUTION
Regularly check the mains power lead condition over the life of the product, and do not operate the equipment if you
suspect there is damage to any part of the equipment or the mains power lead.
Do not operate the equipment if you suspect the power lead has been stretched, over-extended or damaged in any
way.
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Insert the plug end of the mains power supply lead firmly into a properly rated, protective earthed wall
mounted power supply outlet.
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If there are double-adapters or oversized DC power packs causing obstruction of the mains power lead plug,
these should first be removed.
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Ensuring your hands are dry, switch on the power on the mains power supply outlet.
Switching On The Immersion Heater
Circulator
CAUTION
Ensure you have filled the water bath to at least the minimum required level before switching on power. Failure to do
so may create a hazardous situation that can cause burns, scalding and create a fire risk.
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Before switching on the immersion heater circulator, determine the temperature you wish to operate the bath at.
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If you wish to heat your containers from ambient temperature, you should load the bath prior to switching on the
unit. See the section titled “Loading the Water Bath” below.
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If you wish to add your containers to warm or hot water, this should be done with extreme care once the
temperature of the water bath has stabilized.
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Once you are ready to begin heating the water, switch the Mains Power Switch to the position marked with a
vertical line. The Power On/Off indicator will light green to indicate the heating system is active. The Device Ready
Indicator will light blue once the control system has begun startup.
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If the last set temperature is greater than the current water temperature, the Heating Element Indicator will
light green and either flash to indicate intermittent heating or remain lit constantly to indicate constant heating.
CAUTION
Once the Heating Element Indicator is lit, the heating element is active and the surface of the element will remain
extremely hot whilst heating and for many minutes even after power to the unit has been disconnected. Once the
Heating Element Indicator has lit, under no circumstances should you place any part of your body near the heating
element. The residual heat of the element creates a hazardous situation sufficient to cause burns or scalding if
contact with the element is made.
