Agni Veiga Series Intelligent Addressable Thermal Fixed Temperature Heat Detector

Intelligent addressable thermal detector combining rate-of-rise and fixed temperature detection for early and reliable fire alerts in challenging environments. 

Part Number: VEIGA-IND-HT | Category: Intelligent Analog Addressable Detector

Description

The AGNI Thermal Rate of Rise Cum Fixed Temperature Detector is a precision-engineered intelligent heat detector designed to provide early fire warning by continuously monitoring temperature variations. 
By combining rate-of-rise detection with a fixed temperature threshold, these detectors are not suitable. It communicates digitally with compatible AGNI fire alarm control panels and supports auto addressing for easy system configuration.

Its low-profile design, 360-degree LED visibility, programmable alarm thresholds, and built-in magnet test facility make it ideal for commercial, industrial, and institutional fire alarm installations requiring accuracy, durability, and compliance.  

Job to be Done

Primary Job

Help building owners and safety teams detect fire caused by abnormal heat rise or overheating and trigger an early, reliable alarm in environments where smoke detectors are not suitable.

Safety Job

Prevent fire-related injuries and property damage by reliably detecting abnormal heat rise or overheating early and activating timely fire alarms for safe evacuation and rapid response.

Functional Jobs

Detect rapid temperature increases caused by electrical faults or sudden combustion, Detect slow-developing fires when temperature reaches a fixed threshold, Provide precise addressable fire location to the control panel.

How it Works

How does the Agni Veiga Thermal Rate of Rise Cum Fixed Temperature Detector Work?

The Agni Veiga Series Intelligent Addressable Thermal Rate of Rise Cum Fixed Temperature Detector continuously monitors the surrounding air temperature using an intelligent sensing element. 

Application & Solution

  • Electrical rooms and cable shafts
  • Warehouses and storage facilities
  • Workshops and manufacturing units
  • Parking basements and service areas
  • Laundry rooms and utility spaces

Application & Solution

  • Electrical rooms and cable shafts
  • Warehouses and storage facilities
  • Workshops and manufacturing units
  • Parking basements and service areas
  • Laundry rooms and utility spaces

How does the Agni Veiga Thermal Detector Operate?

1. Continuous Temperature Sensing

The detector continuously monitors the surrounding air temperature using its built-in thermal sensing element.

2. Temperature Pattern Analysis

It analyzes both the rate of temperature rise and the absolute temperature value in real time.

3. Rate-of-Rise Detection

If the temperature increases rapidly at 7°C–10°C per minute, the detector identifies a fire condition and prepares to trigger an alarm.

4. Fixed Temperature Detection

If the temperature rises slowly and reaches approximately 57°C, the detector activates the alarm based on the fixed temperature threshold.

5. Alarm Signalling & Visual Indication

Once an alarm condition is confirmed, the detector sends its addressed digital signal to the control panel and activates 360° LED indication.

6. System Activation & Reset

The fire alarm control panel triggers alarms and safety responses. After the event is cleared, the detector resets and resumes normal monitoring.

Product in One Line 

Detect dangerous heat buildup early and trigger a reliable fire alarm in environments where smoke detection is not effective.

Technical Specification

PARAMETER

Specification

Product Type

Intelligent Thermal Rate of Rise Cum Fixed Temperature Detector

Part Number

AGNI IND-HT

Series

Veiga Series

Detection Method

Rate Of Rise + Fixed Temperature

Loop Voltage

15 Vdc - 40 Vdc

Average Standby Current

70 µA @ 24 Vdc

Alarm Current

6 mA @ 24 Vdc

Temperature Range (Set)

−30°C to +70°C

Fixed temperature Threshold

Approx. 57°C

Rate of Rise Activation

7°C to 10°C per minute

Alarm Thresholds

4 Selectable Alarm Thresholds

Communication Protocol

Intelligent Digital Communication

Addressing

Auto Addressing on Compatible Fire Panels

LED Indication

360° Cone of Visibility

Humidity Tolerance

95% RH (Non-Condensing)

Max Loop Addresses

240 / 256

Mounting Type

Open Style Mounting Base

Weight (with Standard Base)

130g

IP Rating

IP40

Diameter

Ø 110 mm

Height

48 mm

Compliance Standards

EN 54-5, IS 2189:2175:1988

Certification

CE Compliant

FAQ

What is the Thermal Rate of Rise Cum Fixed Temperature Detector?

It is a heat detector that activates an alarm when it senses a rapid rise in temperature or when a fixed temperature threshold is reached. 

The detector continuously monitors temperature changes. It triggers an alarm if the temperature rises rapidly (7°C–10°C per minute) or reaches approximately 57°C. 

Yes it supports auto addressing on compatible intelligent fire alarm control panels, simplifying installation and configuration. 

It conforms to EN 54-5 and IS 2189:2175:1988 standards and is CE compliant.

The detector has an IP40 rating, which increases to IP42 when used with a waterproof mounting base. 

Yes, it is designed for use in commercial, industrial, and institutional buildings, including factories, warehouses, offices, and public facilities. 

Intelligent Addressable Thermal Fixed Temperature Heat Detector

Agni Veiga IND-HT intelligent thermal rate of rise cum fixed temperature heat detector. EN 54-5 & IS 2189 complaint, addressable fire alarm solution.Â