User manual

EXTECHINSTRUMENTS
5FM100‐en‐GB_v1.76/16
RelativeHumidityCompensationAdjustment
When
isshownonthedisplay,pressandholdthecontrolbuttontoentertherelative
humiditycompensationadjustmentmode.Momentarilypressthecontrolbuttontomakea
stepchangein theRH%offset;therangeis‐9to+9RH %.Whendone,pressandholdthe
controlbuttontosavethesetting.Themeterwillreturntothenormalmode.
Warning: While performing the compensation adjustments, do not touch the sensor, as
accuracymaybelostwhenadjustingthetemperaturevalues.

Warning: While performing temperature or RH%compensationadjustments do nottouch
the slotted openings on the meter housing, these are where the sensors are located.
Otherwise,accuracymaybecompromised.

ChangeFormaldehydeUnit(ppmormg/m
3
)
When isshownonthedisplay,pressandholdthecontrolbuttontoentertheunit
selectionmode.Choosetheunits(ppmormg/m
3
)bymomentarilypressingthecontrol
button.Oncethedesiredunitsarechosen,pressandholdthecontrolbuttontosavethe
setting.TheLCDdisplaywillreturntothenormalmeasurementmode.

BeeperActivateorInactivateSelection
When isshownonthedisplay,pressandholdthecontrolbuttontoenterthealarm
(beeper)settingmode.Momentarilypressthecontrolbuttontotogglethebeeper
conditionONorOFF.Onceselected,pressandholdthecontrolbuttontosaveandreturn
tothenormalmodeofoperation.
