Operation
Marathon MR Rev. E2 04/2011 35
6.2.6 Setpoints
The two Setpoints are deactivated by default (alarm mode). Activating and adjusting the Setpoints is
accomplished through software. Once one or both Setpoints are activated the relay changes state as
the current temperature passes the setpoint temperature.
6.2.7 Deadband
Deadband is a zone of flexibility around the Setpoint. The alarm does not go abnormal until the
temperature exceeds the Setpoint value by the number of set deadband degrees. Thereafter, it does not
go normal until the temperature is below the Setpoint by the number of set deadband degrees. The
Deadband is factory preset to ± 2° C or F of Setpoint value. Adjusting to other values is accomplished
through software. For information on the sensor’s communication protocols, see Section
9 Programming Guide Seite 44. The following figure is an example of the Deadband around a Setpoint
temperature of 960°C (1760°F).
Figure 23: Deadband Example
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