User manual

Operation
26 MarathonSeriesFA/FR
Thesensorhasaremotelockingfeaturethatkeepstheunitfrombeingaccidentallychangedfromthe
control panel (locked by default in multidrop mode). This lockout mode denies access to all the
switchesonthecontrolpanel.ItisavailablethroughtheRS485connectionandcanbeunlockedonly
by
acommandfromtheremotecomputer.
6.2OperationModes
Whenyoufirstturntheuniton,thedisplayshowsthecurrenttemperature.Pushingthemodeselector
button will change the figures on the display to the current setting for each particular mode. The
following figure illustrates the sequence of operationfor the mode selector button when in current
temperaturemode.


Figure24:ModeSelectorButtonSequence(FAModels)
Display current temperature Switches between °C and °F
Display/Change emissivity
default: 1.00
Raises and lowers emissivity
Display/Change peak hold setting
default = 0 sec / off
Raises and lowers
peak hold timing
Display/Change averaging setting
default = 0 sec / off
Raises and lowers
averaging time
Display/Change valley hold setting
default = 0 sec / off
Raises and lowers
valley hold timing