RayTek MARATHON FA - Setpoints; Deadband

Operation
30 MarathonSeriesFA/FR
Peak Hold with decay timer 000.1-299.9 000.0 000.0 -* 0001-9999
Advanced Peak Hold trigger or
threshold
300.0 000.0 0250-3000 -* 0000
Advanced Peak Hold timer or
threshold
000.1-299.9 000.0 0250-3000 -* 0000
Advanced Peak Hold with
decay
timer or
threshold
000.1-299.9 000.0 0250-3000 -* 0001-9999
Valley Hold*** timer 000.0 000.1-299.9 000.0 -* 000.0
Valley Hold*** trigger 000.0 300.0** 000.0 -* 000.0
Valley Hold with decay*** timer 000.0 000.1-299.9 000.0 -* 0001-9999
Advanced Valley Hold*** trigger or
threshold
000.0 300.0 0250-3000 -* 0000
Advanced Valley Hold*** timer or
threshold
000.0 000.1-299.9 0250-3000 -* 0000
Advanced Valley Hold
with decay***
timer or
threshold
000.0 000.1-299.9 0250-3000 -* 0001-9999
Table2:HoldFunctions
*Valuedoesnotaffectthefunctiontype
**Holdsindefinitelyoruntiltriggered
***FunctionavailableonlyforFA
Models
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).