User's Manual

XTL Installation Guide Digital Monitoring Products
5
InstallatIon
Secondary Power Supply
6.1 Standby Battery
TheXTLrechargeablebatteryisusedtoprovide24hoursofbackupbatterypowerwhenDCpowerisnot
available.ThebatteryisintendedforbackuppoweronlyandnottooperatetheXTLpanelonadailybasis.
Ifthebatteryislow,ornotpluggedintotheJ1batteryconnector,alowbatteryconditionisindicatedbythe
XTLpanel.
Note:IfremovingtheXTLpanelfromservice,disconnectthebackupbatteryfromtheXTLconnector.
6.2 Replacement
UsethefollowingstepstoreplacetheXTLstandbybattery.DMPrecommendsreplacingthebatteryevery3
years under normal use.
Top PCB Snaps
Bottom PCB Snaps
Battery
connector
3.7V
Rechargeable
Battery
Figure 4: Standby Battery Replacement
1. Unplugthebatteryconnector(J1)fromtheXTLpanel.
2. LoosenthetopPCBsnaps.
3. LeanthepanelPCBforwardandliftoutfromthebottomPCBsnaps.
4. Removeandproperlydisposeoftheusedbattery.
 Caution:Riskofre,explosion,andburns.Donotdisassemble,heatabove212°F(100°C),
or incinerate. Properly dispose of used batteries.
5. PlacethenewbatteryintotheXTLhousingbasewiththebatterywiresdirectedtowardthe
bottomrightcorner.SeeFigure4.
6. SettheXTLPCBintothebottomsnapsandpressintothetopsnapstosecureinplace.
7. Plugthebatteryintothepanelconnector(J1).
6.3 Battery Supervision
ThepanelteststhebatteryonceeveryhourwhenDCpowerispresent.Thistestoccurs15minutespast
eachhourandlastsforveseconds.Aloadisplacedonthebatteryandifthebatteryvoltageislow,alow
batteryisdetected.IfDCpowerhasfailed,alowbatteryisdetectedanytimethebatteryvoltagefalls
below3.7V.