CO2Deadband: To change the CO2deadband,presstheMENUbut-
tontodisplaytherstmenuitem.UsetheUPandDOWNarrowbuttons
toscrollthroughandnd“SetCO2Deadband”ontheLCDscreen.To
changethesetting,presstheENTERbutton.Thecurrentsettingwill
behighlightedtoindicatethesettingcanbechanged.UsetheUPand
DOWNarrowbuttonstochangethesetting.PresstheENTERbuttona
second time to accept the new setting and store it in memory.
Minimum CO2Level: The unit records the minimum CO2level mea-
suredbythesensor.Toresettheminimumlevel,presstheMENUbutton
todisplaytherstmenuitem.UsetheUPandDOWNarrowbuttonsto
scrollthroughandnd“MinCO2”ontheLCDscreen.Toreset,pressthe
ENTERbuttontwiceafterthevalueisdisplayed.
Maximum CO2Level:TheunitrecordsthemaximumCO2level mea-
suredbythesensor.Toresetthemaximumlevel,presstheMENUbutton
todisplaytherstmenuitem.UsetheUPandDOWNarrowbuttonsto
scrollthroughandnd“MAXCO2”ontheLCDscreen.Toreset,press
theENTERbuttontwiceafterthevalueisdisplayed.
CO2Mode:TheunitwilloperatetoIncreaseorDecreaseCO2levels.In
most indoor growing and greenhouse applications, the unit should be set
to increase CO2levels. To change the CO2Mode,presstheMENUbut-
tontodisplaytherstmenuitem.UsetheUPandDOWNarrowbuttons
toscrollthroughandnd“SetCO2Mode”ontheLCDscreen.Tochange
thesetting,presstheENTERbutton.Thecurrentsettingwillbehighlight-
edtoindicatethesettingcanbechanged.UsetheUPandDOWNarrow
buttonstochangethesetting.PresstheENTERbuttonasecondtimeto
accept the new setting and store it in memory.
Selecting Photocell Settings
TheunitwilloperateduringtheDay,Nightor24-hoursmode.Abuilt-in
photocell on the remote sensor detects the lighting level and automati-
cally activates the CO2output only during the hours the user selects. To
changethePhotocellsettings,presstheMENUbuttontodisplaytherst
menuitem.UsetheUPandDOWNarrowbuttonstoscrollthroughand
nd“PhotocellMode”ontheLCDscreen.Tochangethesetting,press
theENTERbutton.Thecurrentsettingwillbehighlightedtoindicate
thesettingcanbechanged.UsetheUPandDOWNarrowbuttonsto
changethesetting.PresstheENTERbuttonasecondtimetoacceptthe
new setting and store it in memory.
Calibrating the CO2Sensor
The CO2sensor is factory calibrated, but should be calibrated once a
year.Placethesensoroutsideinashadedareaawayfrompeopleand
other sources of CO2.Plugintheunitandallowthesensortooperatefor
10-15minutes.PresstheMENUbuttontodisplaytherstmenuitem.
UsetheUPorDOWNarrowbuttonstoscrollthroughandnd“Calibrate
380PPM”ontheLCDscreen.PressENTERtwicetostartthecalibration
process.Whenthecalibrationprocessiscomplete,theunitwillreturnto
normaloperationafterbrieydisplaying“380CalibrationComplete”on
the LCD screen.
Troubleshooting
The LCD screen is blinking and showing an error message.All
detectederrorswillcausetheunittogointo“safemode.”Itwillshut
downtheconnecteddeviceanddisplayoneofthefollowingerrors:
Sensor Error(problemwithsensor)
Overload(currentdrawexceeds10A)
HoldingtheENTERbuttonfor3secondswillresetanyerrorexcept
forOVERLOADandSENSOR.Forasensorerror,ensurethesen-
sor cable is properly connected to the unit. For an overload error,
disconnecttheunitfromtheelectricalsupplytoresettheerror.Itmay
benecessarytoreducethesizeoftheconnectedequipment(ifitex-
ceedsa10Adraw)topreventtheOVERLOADerrorfromreoccurring.
Seewarrantyprocedureinformationifyouresettheunitandtheerror
code continues to appear.
Why doesn’t the unit function immediately when plugged in?
Whentheunitispluggedin,itwilltakeabout5-10minutesforthe
CO2sensor to warm up. During this time, the display will read
“WARMINGUP.”
How can I tell if the photocell is working correctly?
Thephotocellwilldetectevendimlylitareasasbeing“Daytime.”
Whenthephotocellsensesenoughlight,itwillactivatetheDaytimer
settingsandtheunitwillread“Day”ontheleftsideofthedisplay.
Whenitdoesn’tdetectlight,thedisplaywillread“Night.”
The unit seems to be reading the CO2level incorrectly.
Ensure there is air circulation around the CO2sensor. Do not breathe
near or directly on the CO2sensor. To quickly verify the CO2sensor
is measuring CO2correctly, connect the unit to a power source away
from people or other sources of CO2.After10minutestheCO2read-
ingshouldbebetween375and425ppm.Ifitdoesnot,recalibratethe
CO2sensor.
rev:112013
