Autocall A4098-9755 Duct Sensor Housing

The Autocall A4098-9755 is an addressable duct detector. In addition to the duct detector being weatherproof, it also comes with a photoelectric smoke detector. Smoke detection system designs that require smoke detection monitoring of an HVAC duct that is exposed to environmental extremes must provide protection against the anticipated temperatures and total weather conditions.

Autocall A4098-9755 compact air duct smoke sensor housings provide TrueAlarm operation for the detection of smoke in air conditioning or ventilating ducts. Sampling tubes come installed into the duct allowing air to be direct to the smoke sensor mount in the housing. TrueAlarm photoelectric sensors use a stable, pulsed infrared LED light source and a silicon photodiode receiver to provide consistent and accurate low power smoke sensing.

Typically duct sensor applications require less sensitive settings due to the ducts being in a relatively dirty environment. However, the standard seven levels of TrueAlarm sensor sensitivity are available for each individual sensor, ranging from 0.2% to 3.7% per foot of smoke obscuration. Sensitivity is select and monitored at the fire alarm control panel.

Features / Specifications

• Information processed by the host control panel to determine sensor status
• Digital transmission of analog sensor
• Programmable sensitivity as well as consistent accuracy
• values via IDNet and also 2-wire communications

Download the Specification sheet in *.pdf format

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