Brookfield Bath, Model TC-602 - Manual (Page 10)

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Locate the Circulator on a level surface, free from drafts and out of direct sunlight. Do not place it
where corrosive fumes, excessive moisture, high room temperatures, or excessive dust are present.
Refrigerating/Heating Circulators must be a minimum of four inches (102mm) away from walls or
vertical surfaces so air flow around the unit is not restricted.
To help prevent voltage drops, position the Circulator as close as possible to the power distribution
panel and a properly grounded outlet. The use of an extension cord is not recommended.
Warning: These units are equipped with over-temperature protection (Safety Set). A low liquid
level or failure to set the Safety Set and properly immerse the heater may result in heater burnout
and triac failure. While operating, do not allow the heater to contact any potentially flammable
materials, such as plastic racks or the sides of plastic tanks, as a fire hazard may result.
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Fill the reservoir with the appropriate bath fluid. The liquid level should be sufficient to cover the
heating coils, pump, over-temperature sensor, and at least one inch (25mm) of the temperature
sensor.
After filling the reservoir with fluid, you must set the Safety Set and the Limit High value as well as
your desired control set point temperature.
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The Programmable Controller is designed to accommodate an optional remote temperature probe.
The probe (order p/n DVP-94Y) attaches with an adapter (order p/n TC-54Y), to the 9-pin male
D-connector on the rear panel of the Controller.
The Controller will automatically sense the presence of the external probe when main power (rear
panel circuit breaker/power switch) is turned On. To control temperature using the external probe,
“External” must be selected via the Controller’s software. You must also set a Maximum Setpoint
Differential value. See Section 4.11 – Setting Operational Parameters and Functions - Selecting the
Temperature Probe.
To attain better temperature uniformity when using the external temperature probe in a jacketed or
air-filled vessel, stirring the external fluid with pumps or mixing air with fans is recommended. Expect
only ±1.0°C stability with air or any medium that does not conduct heat well. Insulate and cover the
entire set-up to remove temperature gradients; the Controller cannot compensate for external
chamber or component temperature gradients.
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Programmable Controllers incorporate an RS232 interface to provide remote data-logging and
control capability. The 9-pin female RS232 connector is located on the rear panel of the Controller.
The RS232 interface should be connected to a serial communication port on a remote PC using an
appropriate cable (RSS-E1) supplied with the bath. Information on the RS232 command and
communication protocol can be found in Section 8.2 – RS232.