Setpoints; Deadband - RayTek MARATHON FA Operating Instructions Manual

Operation
Peak Hold with decay
Advanced Peak Hold
Advanced Peak Hold
Advanced Peak Hold with
decay
Valley Hold***
Valley Hold***
Valley Hold with decay***
Advanced Valley Hold***
Advanced Valley Hold***
Advanced Valley Hold
with decay***
* Value does not affect the function type
** Holds indefinitely or until triggered
*** Function available only for FA
6.2.9 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.
6.2.10 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 on page 39. The following figure is an example of the Deadband around a
Setpoint temperature of 960°C (1760°F).
30
timer 000.1-299.9
trigger or 300.0
threshold
timer or 000.1-299.9
threshold
timer or 000.1-299.9
threshold
timer 000.0
trigger 000.0
timer 000.0
trigger or 000.0
threshold
timer or 000.0
threshold
timer or 000.0
threshold
Table 2: Hold Functions
Models
000.0 000.0
000.0 0250-3000
000.0 0250-3000
000.0 0250-3000
000.1-299.9 000.0
300.0** 000.0
000.1-299.9 000.0
300.0 0250-3000
000.1-299.9 0250-3000
000.1-299.9 0250-3000
Marathon Series FA/FR
-* 0001-9999
-* 0000
-* 0000
-* 0001-9999
-* 000.0
-* 000.0
-* 0001-9999
-* 0000
-* 0000
-* 0001-9999