Operating instructions

Setting
Setting
Setting
Settingthe
t he
the
themeasuring
m easuring
measuring
measuringfunctions
f unctions
functions
functions
TheIRthermometerHT-280Hcanperformdifferentmeasuringfunctions.
Toaccesssetupmode,pressthebutton„SET“whenthethermometeristurnedon(button
„MEAS“).
The„SET“buttontakesyoutothenextrespectivemenupointandthebutton„LASER“changes
theparameters.Theactivefunctionisdisplayedonthedisplay.
Menu
Menu
Menu
Menusequence:
s equence:
sequence:
sequence:
MAX/MIN:Displayoftheminimumormaximumvalue.(MAX/MIN/Off=noicon).
SwitchingthetemperatureunitfromCelsius(°C)toFahrenheit(°F)andvice-versa.
Increasingthedegreeofemission„E“(max.1.00)
Decreasingthedegreeofemission„E“(min.0.10)
Settingforpermanentmeasuring(lockicon).
OFF=Measuringonlytakesplacewhenthemeasuringbuttonisdepressed
ON=Permanentmeasuringisactivated,thedevicedoesnotswitchoffafter12s.Todeactivate
thismode,pressthebutton„Laser“.Thecastleicongoesoff.
Raisingthealarmlevel
Loweringthealarmlevel
Activatingthetemperaturealarm.
OFF
ON=Themeasuringdeviceemitsawarningsoundwhenexceedingthepreviouslysetalarm
level.
Tips
Tips
Tips
Tipsand
a nd
and
andinformation
i nformation
information
information
•Theemissiondegreedescribedtheenergyemissioncharacteristicsofamaterial.Thehigherthisvalueis,themore
radiation
amaterialmayemit(thermalradiation).Manymaterialshaveavaluethatisclosetothepresetvalue„0.95“oftheIR
thermometer.
Metallicshinysurfaceshavealesserdegreeofemissionthan
matteblacksurfaces.
Therefore,thedegreeofemissionmustbepresetaccordingly.
Inthiscase,attachinganadhesivestrip(orlacquerwithmatteblackpaint,ifpossible),helpstobeabletomeasurewith
thecommonemissiondegreeof0.95.
•Measuringthroughaglasspaneisnotpossible,instead,thetemperatureoftheglasspaneisdisplayed.
Maintenance
Maintenance
Maintenance
Maintenanceand
a nd
and
andCleaning
C leaning
Cleaning
Cleaning
Periodicallycheckthetechnicalsafetyofthedevice.
Itcanbeassumedthatrisk-freeoperationisnolongerpossibleif:
•thereisvisibledamagetotheapplianceor