BLASI – Timer 3
The BLASI Timer 3 (pulse broadening) is a signal conditioning module that extends short sensor pulses for reliable detection by TA-4 control systems in automatic revolving door applications. This precision timer stretches brief activation signals from photocells, safety edges, and manual switches to ensure consistent controller recognition while preventing signal loss due to electrical noise or marginal contacts. Adjustable broadening from 100ms to 2 seconds accommodates various sensor types and environmental conditions. Essential for maintaining reliable operation in noisy commercial environments where pulse integrity directly impacts safety and performance.
Product Details
The BLASI Timer 3 pulse broadening module eliminates intermittent sensor operation by converting short electrical pulses into extended timing signals that guarantee TA-4 logic board recognition across varying environmental conditions. Precision RC timing circuits provide adjustable pulse extension from 100ms minimum to 2-second maximum, accommodating slow-responding safety edges, marginal photocell signals, and mechanically worn switches common in high-traffic installations.
Monostable operation ensures clean, square output waveforms while suppressing electrical noise and contact bounce that cause controller misinterpretation. Multi-turn potentiometer enables field calibration for specific sensor characteristics and site requirements while diagnostic LED confirms activation timing during Service-IBS verification testing.
Direct DIN-rail mounting integrates within TA-4 distribution panels while conformal-coated PCB withstands humid entrance environments. Critical for maintaining consistent safety circuit performance and operational reliability in hotels, offices, hospitals, and retail facilities where sensor reliability prevents false alarms and ensures immediate hazard response during peak occupancy periods.
Article No: 8990000
Additional information
| Brand | BLASI |
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