User Manual

HOBO U14 Data Logger User Manual
3
Plot B:InternalRHSensorAccuracy
Internal Relative Humidity Accuracy
 Temperaturecompensated.
 DonotexposetheinternalRHsensortofog,mist,orothercondensing
conditions.
 Thelogger’srelativehumidityaccuracyfortheinternalmodelisshowninthe
plotatright.
Components
Front Back

CircuitBoard

LCDScreen.
SeeTheLCD
Screensection
fordetails.
USBPort.
UseanOnset‐
suppliedUSB
interfacecable
toconnectthe
HOBOU14toa
computer.
ExternalSensor
Port(Model
U14‐002Only).
Connect
supported
SmartSensor
here.
ReplaceableInternalRHSensor(ModelU14‐001Only).Theinternal
relativehumiditysensor
intheU14‐001mayrequirereplacementif
itisdamagedmechanicallyorbyexposuretocondensationor
chemicals.Thereplacementsensor(partnumberHUM‐RHPCB‐3or
RHPCB‐3A)isavailablefromOnsetoranOnsetAuthorizedDealer.
Seethelastpageformoredetails.
RelayTerminal(forRemote
AlarmorAutomaticDialer).TheHOBO
U14iscompatiblewithOnset’sRemoteAlarm(partnumberARA)and
AutomaticDialer(partnumberAVD‐45)availablefromOnset
ComputeroranOnsetAuthorizedDealer.Seethenextsectionfor
moredetails.
MountingHoles.Use
mountingscrews2.5cm
(1inch)aparttomount
theU14toawall.
BatteryCompartment.TheHOBOU14requires
threeAAAbatteries.OnsetComputerCorporation
stronglyrecommendstheuseoffreshalkaline
batteries.Batteriesshouldbereplacedwhenthe
BATTLEVELbargraphisdowntoonesegment,
whichindicates20%batterylifeorless.