cm Posted January 15, 2010 Share Posted January 15, 2010 Hi folks, What size battery would I need for the above Panel? What Texecom smoke detector would you recommend for use in a house? What surface mount door contacts are compatable with this panel? Thanks in advance Chris Quote Link to comment Share on other sites More sharing options...
Secware_Tech6 Posted January 15, 2010 Share Posted January 15, 2010 Chris Your battery needs to be sized based on the load. There are minumum requirements re standby time depending on the version of the regs your using, ie older BS4737 or newer BS EN 50131 re smoke detector any of the texecom unit will work fine but personally id use a menvier M12 unit as its 3 sensors in one and can be programmed at the sensor to detect as required, ie heat / smoke / rate of rise or a combination of those. Door contacts You can use any normal double pole contact and fit eol resistors or use a contact with built in resistors ie the elmdene / knight graded units. Quote Link to comment Share on other sites More sharing options...
cm Posted January 18, 2010 Author Share Posted January 18, 2010 Thanks for that. Regarding the battery, can you advise what size based on the following. 5 (possibly 6) DT PIR's 2 Prox Keypads 2 Smoke Detectors 2 Door Contacts This is a private install, so not fussed about regs, but would like to have sufficent standby time to cover regs anyway (whatever gives the best times I suppose) :-) Thanks, Chris Quote Link to comment Share on other sites More sharing options...
Secware_Tech6 Posted January 18, 2010 Share Posted January 18, 2010 The only way to be 100% is to measure the current as installed. You can make make a rough calculation from the manufactures supplied specs so generic pir (is215) = 16mA Prox keypad (Texecom premier) = 90mA Smoke detector (Menvier M12) = 1mA Door contacts wont use any current Panel (texecom premier) = 70mA SAB (AG6) = 35mA Totals Pirs 6x16 = 96mA Keypads 2 x90 = 180mA smoke = 2x1 = 2mA Panel = 70mA SAB = 35mA total = 383mA WOrking it out the BS4737 way (8 hours standby + 30mins alarm) = 383 x 8 = 3064mA I would add a 10% margin to allow for battery aging 3064 + 306mA = 3370mA There isnt a battery that size so id use a 7A/h battery (7000mA/h) that would give approx 15 hours standby time. Obviously these are calculated values and you need to confirm them with a meter. Quote Link to comment Share on other sites More sharing options...
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