Item NO：conventiona photoelectric smoke alarm TA-2988 series
ProductName：smoke detector
Detailed：
Advanced photoelectric technology
TA-2988 series optical smoke detectors
TA-2988 series optical smoke detectors are designed to respond to a wide spectrum of fires and ease installation. every unit is individually tested and calibrated to ensure high reliability and prevent false alarms.
features and benefits
advanced photoelectric smoke sensing technology
durable sensor head; excellent smoke access
ar (auto reset) function for security systems
(optional for 4 wire models)
n/c (normal/close)-n/o (normal/open) selectable relay output
easy installation and maintenance
modern design (white and beige colors)
freq. :3~5 sec
five-year limited warranty
available options
sensor base: standard and shottky diode
remote led
comply with en54 and ce
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smoke sensitivity
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EN 54-5/7:2000 standard
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detection range
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100 square meters rating for smoke sensor; 50 square meters rating for heat sensor
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start-up current
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70 μa maximum
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alarm impedance
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for 2-wire models: 100Ω+3v max; 560Ω+3v max (red led open circuit)
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alarm indicator
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led continuously emitting red light
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temperature range
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-10°c to 50°c
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remote output
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15 ma max, diode gate
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humidity
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0 to 95% rh, noncondensing
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alarm contact
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for 4-wire: n/o or n/c operation
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form a: 1.0a@30vdc/0.5a@125vac
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dimensions
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10mm (dia) x 46mm (ht) with base
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weight
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130g/set with base
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