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Digital Monitoring Products XR500 Series Canadian Installation Guide
12
InstallatIon
6.9 Standby Battery Selection
Tochoosethetypeandnumberofbatteriesneededfor24,60,or72hoursofstandbypowerbasedontheAmpHours
Required calculation from section 6.8 XR500 Series Power Requirements, perform the following:
1.Selectthedesiredstandbyhoursrequiredfromthetablebelow:24,60,or72hours
2. Select the desired battery size: Model 368 (12 Vdc 5.0 Ah), Model 369 (12 Vdc 7 Ah),
Model 365 (12 Vdc 9 Ah), Model 366 (12 Vdc 18 Ah).
3. Select a Max. Ah Available number that is just greater than the number calculated in Amp Hours Required.
4.InstallthenumberofbatteriesshowninthecorrespondingNo.ofBatteriesrequiredcolumn.
Example: IftheAmpHoursRequiredcalculationequals22Ahfor24hoursofstandbytimeand4.5Ahbatteries
are desired, install six (6) Model 368 (12 Vdc, 5.0 Ah) batteries.
Note: You can use a Model 327-CAN Plug-in 50VA with up to 36Ah of standby battery or ATC Frost FTA7516 75VA
transformer with any of the number of batteries choices listed below.
24 hours of standby power
5.0 Ah Batteries 7 Ah Batteries 7.7 Ah Batteries 9 Ah Batteries 18 Ah Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
8 2 6 1 6 1 8 1 16 1
12 3 12 2 13 2 16 2 32 2
16 4 18 3 20 3 24 3 48 3
20 5 24 4 27 4 32 4
24 6 31 5 34 5 40 5
28 7 37 6 41 6
32 8 43 7
36 9 Note:48hoursisthetypicalbatteryrechargetimeforanyoftheNumberofBatteries
shown in this section.
40 10
60 hours of standby power
7 Ah Batteries 7.7 Ah Batteries 9 Ah Batteries 18 Ah Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
13 2 14 2 17 2 17 1
20 3 22 3 26 3 34 2
27 4 29 4 34 4 52 3
33 5 37 5 43 5 69 4
40 6 44 6 52 6
47 7 52 7 61 7 Note:48hoursisthetypicalbattery
recharge time for any of the Number of
Batteries shown in this section.
54 8 59 8 69 8
60 9 67 9
67 10
72 hours of standby power
9 Ah Batteries 18 Ah Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
16 2 16 1
25 3 33 2
33 4 50 3
42 5 67 4
50 6
59 7 Note: 72 hours is the typical battery recharge time required for any of the Number of
Batteries shown in this section.
67 8
Note: If the Amp Hours Required calculation is greater than any Max. Ah Available number shown on a table, then
add power supply(s) to power some system devices allowing the Amp Hours Required calculation to be reduced. See
the710BusSplitter/RepeaterInstallationGuide(LT-0310).
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