Signature 2000 probe Heat Detector | Fixed Temperature Fire Sensor (IP42)
A high-performance fixed-temperature probe heat detector designed for hazardous and high-heat environments. Built with high-grade aluminum, it ensures fast response, durability, and reliable fire detection with auto-reset functionality.
Part Number: AGNI-PROB-207 | Category: Conventional Detectors
Description
The Signature 2000 Series Probe Detector by Agni Instruments Engineers India Private Limited is a precision-engineered thermal detection device designed for demanding industrial and commercial environments. It operates as a fixed-temperature, auto-resetting heat detector, ideal for applications where rapid heat detection is critical.
Constructed using high-grade 7000 / 2000 series aluminum, the detector offers exceptional resistance to corrosion, shock, and harsh environmental conditions. The probe contains a heat-sensitive bimetal thermostat switch that activates when the preset temperature threshold is reached, closing the electrical contacts to trigger an alarm. Once the temperature falls below the set point, the system automatically resets.
The detector supports a wide temperature range (factory preset between 60°C to 150°C), making it suitable for diverse applications such as industrial kitchens, HVAC ducts, boiler rooms, heavy machinery zones, and chemical processing plants.
Its gold/silver-plated contacts ensure reliable conductivity, while nickel-plated copper cables with high-grade insulation enhance durability and safety. With dual LED indication and compliance with EN 54-5-7 and IS 2189 standards, this detector delivers consistent performance in critical fire safety systems.
A blinking red LED indicates normal and healthy operation status of the device, confirming that the probe sensor is functioning correctly. When the red LED remains steadily ON, it signifies that the probe heat sensor has been activated and the fire alarm zone circuit has triggered an alarm condition.
According to the datasheet (Page 1 & 2), it is specifically designed for high-temperature environments like ovens, furnaces, ducts, and manufacturing units, ensuring dependable fire detection even in extreme conditions
How it Works
How does the Signature 2000 Series Probe Heat Detector Work?
The Signature 2000 Series Probe Heat Detector works by detecting heat at a fixed temperature and triggering an alarm when that temperature is reached.
Commonly Used
- Industrial Kitchen
- HVAC Duct System
- Boiler RoomÂ
- Heavy Machinery Area
- Chemical Processing Plant
- Warehouse Storage Zone
Step-by-Step Signature 2000 Series Probe Heat Detector Working Principle?
01
Continuous Heat Monitoring
The aluminum probe (120 mm length) is constantly exposed to the surrounding environment or heat source. It senses temperature changes in real time.
02
Fixed Temperature Threshold
The detector is factory preset to a specific temperature between 60°C to 150°C. It does not react to smoke or minor fluctuations, only to critical heat levels.
03
Bimetal Activation
Inside the probe, a bimetal thermostat switch responds to heat. When the temperature reaches the preset limit, the metal expands the triggers the internal mechanism.
04
Alarm Triggered
The electrical contacts close (NO/NC configuration), sending a signal to the fire alarm panel. At the same time, the red LED indicator activates to show alarm status.
05
System Response
Once triggered, the connected fire alarm system can: Activate sirens or hooters, Alert control panels, Initiate emergency protocols.
06
Auto Reset Function
When the temperature drops below the set threshold, the automatically resets and returns to monitoring mode. No manual intervention needed.
Technical Specification
|
PARAMETER |
Specification |
|---|---|
|
Part Number |
AGNI-PROB-207 |
|
Product Type |
Fixed Temperature Probe Heat Detector |
|
Model Series |
Signature 2000 Series |
|
Operating Voltage |
30V DC to 36V DC (±6%) |
|
Operating Temperature Range |
-10°C to +150°C |
|
Preset Temperature Range |
60°C to 150°C (factory set options) |
|
Maximum Alarm Current |
25 mA |
|
Alarm Resistance |
560 Ω / 1k Watts |
|
Sensor Type |
Bimetal Thermostat Switch |
|
Contact Type |
NO/NC (Normally Open / Normally Closed) |
|
LED Indication |
Red LED, 120° wide angle |
|
Protection Rating |
IP42 (Indoor Use, Type A) |
|
Humidity Tolerance |
Up to 95% RH |
|
Probe Material |
High-grade 7000 / 2000 series aluminum |
|
Probe Length |
120 mm |
|
Probe Diameter |
23 mm |
|
Dimensions (H x W x D) |
160 mm x 95 mm x 60 mm |
|
Net Weight |
240 g |
|
Shipping Weight |
250 g |
|
Cable Specification |
20 SWG, 2 mm OD insulation |
|
Connector Type |
2-way connection |
|
Mounting Type |
20 mm electrical conduit thread |
|
Sensitivity Accuracy |
±5% or ±5°C |
|
Certifications |
EN 54-5-7, IS 2189, ERTL / NABL |
|
Application Areas |
Industrial kitchens, ducts, boilers, HVAC, machinery, chemical plants |
Job to be Done
Primary Job
Continuously monitor temperature and trigger an alarm when a preset heat threshold is reached to prevent fire hazards.
Safety Job
Detects abnormal heat early, triggers alarms, protects life and equipment, reduces fire risk, ensures safety in hazardous environments, and supports compliance with fire safety standards.
Functional Jobs
Monitors temperature continuously, detects preset heat levels, triggers alarm signals, provides LED indication, auto-resets after cooling, and ensures reliable performance in industrial environments.
FAQ
What is a probe heat detector and how does it work?
A probe heat detector is a fixed-temperature fire detection device that senses heat through a metal probe. When the preset temperature (60°C–150°C) is reached, the internal bimetal switch activates and triggers an alarm. It automatically resets once the temperature drops.
Where can the Signature 2000 Series Probe Detector be used?
This detector is ideal for high-heat and hazardous environments such as industrial kitchens, HVAC ducts, boiler rooms, furnaces, heavy machinery areas, chemical plants, and warehouses.
Is this heat detector suitable for my application?
If your environment involves high heat like kitchens, boilers, ducts, or machinery, this detector is ideal. It is designed specifically for heat-intensive and hazardous areas.
What temperature should I choose for my setup?
Choose based on your normal operating environment:
- 60–80°C → Low to moderate heat areas
- 100–120°C → Industrial kitchens, ducts
- 130–150°C → Heavy machinery, boilers
Does it work in dusty or dirty environments?
Yes, Unlike smoke detectors, this probe heat detector performs reliably in dusty, oily, or smoky conditions.Â
What makes this better than standard heat detectors?
Its probe design allows direct heat sensing inside ducts, machines, or confined spaces, providing faster and more accurate detection.
Signature 2000 Probe Heat Detector
Signature 2000 Series Probe Heat Detector with auto-reset bimetal sensor, IP42 protection & fast response. Ideal for industrial, HVAC & high-heat environments.
