User Manual
RH520A-EU-EN v4.4 8/13
7
GettingStarted
POWER
1. TheRH520ArunsonbatterypowerorACadaptor(4.5VDC300mA).Batterypowerconsists
ofthree(3)‘AA’batteries.SeetheBatteryReplacementsectionofthismanualwhen
changing/installingthebatteries.Note:Batteriesandadaptoraresupplied.
2. PlugtheACadaptorintheACadaptorjackshowninthe
Descriptionsection.Thebatteries
willactasbatteryback‐upintheeventofanACpowerfailure.
3. Oncethebatteriesareinstalledortheadaptorproperlyconnected,theRH520Awillbegin
displaying.
4. IntheunlikelyeventthattheACpowerANDthebatteryback‐upfails,the
RH520Awill
requirea“ProgrammingReset”toresetthedisplay.PresstheRESETbuttonlocatedinside
thebatterycompartment.“Reset”clearsallsettings.Time,Dateandthelogginginterval
needtobeentered.Themeasurementdataandalarmhistory,however,willstillberetained
inthenon‐volatilememory.
5. The
5‐segmentbatterylifeindicatorallowstheusertotrackthestatusofthebattery.When
all5‐segmentsaredark,thebatteryisfullycharged.Segmentsswitchoffasthebatteryages.
Whenthebatteryindicatorhasonlyonesegmentleftthebatteriesmustbereplaced
immediately.
NOTE:Always
settheDate,Time,andSamplerateimmediatelyafterbatterieshavebeen
installedoraftertheRESETbuttoninthebatterycompartmenthasbeenpressed.
ThenpresstheDataResetbuttonontherearfaceofthemeterfor>4secondsto
clearanyrecordeddata.
MOUNTINGTHERH520A
TheRH520Acanbeusedinthefollowingways:
1. Placedonatabletopwheretheswivelkeypadisemployedasthetablestand
2. Wallmountedusingtherearmountingholes
MEASUREMENTPROBE
Theprobeisattachedtothemeterwitha1metercableandcanbeusedstoredintheRH520A
probecradleorremotely.TheprobecablelengthcanbeeasilyextendedwithanRJ45cableand
agenderchanger.
PUSH‐BUTTONLOCK‐OUTSECURITYFEATURE
TheRH520Acanbesecuredfromtamperingbyhavingitspush‐buttonslocked.
1. Pressforapprox.1secondandreleasetheUP,DOWN,LEFT,andSETarrowbuttons
simultaneouslytolock‐outthepush‐buttons.
Note:Thesecuritylockoutcanonlybeperformedfromthemainviewscreen.Ifascrollkey
orthetimebuttonwaspressedpriorto
settingupthelock‐out,theusermustscrollbackto
themainscreen.
2. Pressforapprox.1secondandreleasetheUP,DOWN,LEFT,andSETarrowbuttons
simultaneouslytorestoretheoperationofthepush‐buttons