Telefire
ADR-3000 – System Introduction
Revision 1.10 4 November 2004
The TFO-440A is designed to protect indoor fire risk areas, except environments where
smoke, steam, dust, or corrosive gasses are present under normal conditions.
Optical smoke detectors should be used for detecting smoldering fires in corridors and
along escape routes, wood- or paper stores, electric cabinets, etc., They should not be
used in steamy, dusty, or smoky areas such as kitchens, bathrooms, saunas, laundries,
etc.
Please refer to the TFO-440A technical manual for further details.
3.2.2 TPH-442A Analog Addressable Multisensor Photoelectric Smoke /
Heat Detector.
Telefire's TPH-442A is a microprocessor-controlled multisensor detector that combines
photoelectric and heat sensors for enhanced fire detection capabilities.
The detector consists of a photoelectric sensing mechanism that contains a vented
chamber (labyrinth), an infrared transmitter and a receiver that detects light scattered
from the smoke particles in the chamber, and a thermal sensor that measures the
ambient temperature. The detector uses a smart algorithm to analyze the physical
parameters (smoke and heat), evaluate their values and trends, and dynamically modify
its sensitivity. This process reduces occurrences of false alarms without reducing
sensitivity to real fire.
The TPH-442A offers the following advantages:
•
The TPH-442A's powerful microprocessor performs signal processing and
enables precise control of the photoelectric chamber. The microprocessor offers
a high level of noise immunity. The microprocessor also performs signal
processing, enables accurate control of the photoelectric chamber according to
pre-set parameters, and manages the communication process with the control
panel.
•
The TPH-442A detector excels in sensing smoldering smoke and differentiating
between fires and false alarms due to other events that produce heat or smoke,
such as cooking.
•
It is considered “green” (environment friendly), as it does not contain radioactive
materials.
Please refer to the TPH-442A technical manual for further details.
3.2.3 TFI-330A Analog Addressable Ionization Smoke Detector
Telefire’s TFI-330A Ionization Smoke Detector is a highly advanced, third generation
ionization chamber smoke detector.
The TFI-330A contains a double chamber with a single radioactive source that emits
less than 1 microcurie of Am
241
and conforms to the strictest hazardous material
regulations.
The TFO-330A is designed to protect indoor fire risk areas, except environments where
smoke, steam, dust, or corrosive gasses are present under normal conditions. It is
especially suited for fast-burning, high-energy fires, such as solvent storage, switch
rooms, etc.
A mixture of optical and ionization sensors can be used to ensure coverage in areas of
high value, like computer rooms.
Please refer to the TFI-330A technical manual for further details.
3.2.4 TFH-220A Analog Addressable Heat Detector
Telefire’s TFH-220A is an advanced analog addressable heat detector that combines
two modes of operation – fixed temperature and rate of temperature rise. The detector
contains a powerful microprocessor enabling accurate control of the heat sensing
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