Secutron MR-2605

Secutron Inc. 21
Table 3 Battery Calculation Chart
Select a battery with an Amp-Hr. rating that is equal to or larger than the calculated minimum
Amp-Hr. battery required.
8 Select ‘standby’ time required (24 or 60 Hr.): Hr.
9 Standby Amp-Hr. - multiply 8 × 7 = (Amps × Hr.): Amp-Hr.
10 Select ‘alarm’ time required (0.08 or 0.5): Hr.
11 Alarm Amp-Hr. - multiply 7 × 10 = (Amps × Hr.): Amp-Hr.
12 Total Amp-Hr = standby Amp-Hr (9) + alarm Amp-Hr. (11): Amp-Hr.
13 Multiply the total Amp-Hr. by the safety margin: 1.20
14 Total battery Amp-Hr required to support the system: Amp-Hr.
Note: The maximum battery allowed is 26 Ah. Install batteries outside the panel box. Total “Standby”
current is not to exceed 0.5 Amperes.
Step Device Current
per
device
(mA)
Number
of
device
Tota l
Standby
Current
(mA)
Tota l Al arm
Current
(mA)