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Temperature sensors
The Biotherm pro system is equipped with two independent temperature sensors. Position the sensors (
,
) at a
sufficient distance away from any sources of HEAT to avoid incorrect measurement and control values.
2. Basic functions
2.1 Safety cut-out while programming
For safety reasons, both slots (
,
) are deactivated when entering program mode.
2.2 Return function
Biotherm pro automatically returns to operating mode when no button is pressed for a period of 90 seconds while in
program mode.
2.3 Monitoring the function of external devices
The connection strip is equipped with LEDs (
) that light up to indicate any external device active control processes.
Each slot can be switched on and off eight times within any 24-hour period. The operating status is also indicated in
the display of the operating unit (
).
2.4 Overwrite function
Time control can be selected on slot 2 (
) as an alternative to temperature control. Any previously entered tempera-
ture values are deleted by the timer settings. Any timer settings will also be deleted if a temperature is programmed.
2.5 Memory function
To safeguard against loss of data in the event of a power failure, Biotherm pro stores the set values for temperature
and time periods. The unit will continue to calculate the time for up to five hours after such an event, so the clock
does not need to be reset after brief power failures.
2.6 Detection of cable breaks, short circuits and programming errors
If a sensor fault or short circuit is detected in the temperature sensor 1(
) or the temperature sensor 2 (
), this is
indicated by E1 or E2 on the display. For safety reasons, external devices are deactivated in such an event. A pro-
gramming error in the time settings for temperature on slot 1 is indicated by an output of E3. A programming error
) is indicated by E5.
of the time settings for temperature on slot 2 (
2.7 Auto-calibration of temperature sensors
The temperature sensor 1 (
) and temperature sensor 2 (
) are a precision measuring instruments and can, if
required, be replaced without further calibration.
2.8 Safeguard function
To protect electronic components, a delay of 60 seconds is set between 2 switching states before the respective slot
becomes active again.
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