Brookfield Bath, Model TC-602 - Manual (Page 22)

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4.11.6 Setting High/Low Temperature Limits and Alarms
The Limits/Alarms sub-menu allows you to establish temperatures at which either power to the
temperature control components (heater/condenser) will be disconnected or which Controller’s
audible alarm will sound (Alarms).
Limit High Temperature — This feature provides additional safety and protection by allowing a
selectable upper temperature limit set point. To avoid an unwanted shutdown during regular
operation, the high limit value should be set at least 5°C higher than the selected control
temperature. It should never be set higher than the Safety Set Set Point temperature (see Section
4.6)
If you attempt to enter a set point value that exceeds the Limit High value, the audible alarm will
sound and a Warning message will flash on the display when the Limit High value is reached. You
will also be prevented from increasing the set point value any further.
To clear a Limit High warning, enter a higher value for the Limit High or reduce the control
temperature set point.
If the Limit High value is exceeded during operation (due to a Controller fault, excessive heat load,
etc.), a Fault message will appear on the display and power to the heater and condenser will be
disconnected. The pump will continue to run.
Alarm High Temperature — This feature is useful if you are using the bath to cool an external
device. It alerts you when bath temperature exceeds your programmed alarm high temperature
setting (due to insufficient cooling, blocked lines, etc.).
When the Alarm High value is exceeded, a Warning message flashes on this display and the audible
alarm sounds. Heater, condenser, and pump operation continue.
To clear an Alarm High warning, correct the problem or increase the Alarm High temperature value.
Alarm Low Temperature — This feature is useful if you are using the bath to warm an external
device or need to maintain the bath at a minimum temperature. It alerts you when bath temperature
falls below your programmed alarm low temperature setting.
When bath temperature falls below the Alarm Low value a warning message flashes on the display,
and the audible alarm sounds. Heater, condenser, and pump operation continue.