linear fire heat detector - uzoba · 2014. 9. 14. · delta – linear fire heat detector 2 linear...
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Linear Fire Heat Detector
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DELTA – Linear Fire Heat Detector
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Linear detector routed throughout the protected zone covering the entire protected area
analyzes the rate of temperature rise (Rate of Rise) to confirm presence of fire or
overheating
• Fast Detection - Detects fire within 60 -100 msec
• Distant Sensing - Identifies fires occurring a distance from the sensor tubing
• Robust & Durable - Tolerates grime, dirt, and extreme conditions
• Automatic Fire Extinguisher - Contains the suppressing agent and will release it when
required
• Built-In-Test (BIT) capability
• Patented Technology
• International Standards
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What is a Rate-of-Rise Detector?
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A flame or overheat detector responds when the temperature rises at a rate
exceeding a predetermined value. The Rate-of-Rise heat detector operates on
a rapid rise in element temperature over time, irrespective of the starting
temperature
Example
A temperature change of
10 degrees per second has
a different interpretation
than the same change over
3 hours
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Linear fire heat detector
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Delta Delta AVI
DELTA Detection Hollow Metallic Tube
Control
Delta
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Lehavot DELTA Detector - Standards
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FM 3210
Military Standards:
MIL-STD 810 - For environmental conditions
MIL-STD 461 - For electromagnetic compatibility
MIL-STD 1275 - For Characteristics of 28V DC
electrical systems in military vehicles
EN 54 – Certified Emergency Voice Alarm
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Delta detector configurations
The Delta detector family is defined into 6 groups:
• Transportation:
• Machinery:
• Off-Road Vehicles
• Industry
• Oil & Gas
• Military
Each group has his own characteristics and features and is designed for the
mentioned application. Nevertheless the Delta detector can be configured
and calibrated to specific parameters to ensure maximum efficiency.
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Linear Detector Comparison
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Parameter DELTA Linear Detector
Signal Processing DSP (Digital Signal Processing)
Minimal Detection Time 100 Milliseconds
Calibration Not required
EMI RFI MIL-STD-461 Approved
Maintenance Not required
Built In Test Electrical
Leakage Risk Very Low
Sensing Tube Length Up to 100m
Sensing Tube Material 2mm diameter Stainless Steel
Temperature Resistance Controller -40O C to +125O C Sensing Tube up to 1000O C
Enclosure Metallic
Water resistance Protection IP 67
Approvals FM 3210
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DELTA - Track Record
• Over 10,000 DELTA detectors supplied to the MaxxPro MRAP program
• IDF Test Results - DELTA detector is the best choice
• Israel Navy - DELTA detector best choice
• Lehavot has protected over 100 HUMVEE engine bays as well as car
trains, cranes and buses using the DELTA detector
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DELTA - Track Record
The Lehavot Delta detectors are suitable for a large variety of industrial and commercial
applications such as busses, trains, off road vehicles, agricultural vehicles, CNC machines,
printers and more
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Thank You
Lehavot - Advanced Fire Protection Systems
www.lehavot.com