Aritech DT713-7 High-Temperature Conventional Heat Detector

1. Product Name: Aritech DT713-7 High Temperature Conventional Heat Detector

2. Description:

What Is the Aritech DT713-7 Heat Detector?

Aritech DT713-7 is a Category B conventional heat detector in the Dx700 series. It combines a fixed temperature threshold of 70°C with an integral rate-of-rise (ROR) function. It complies with EN54-5 and is CPR-certified.

Operating Principle

The detector typically triggers an alarm when the ambient temperature reaches +70°C ± 1.5°C. It also responds to rapid temperature rises of 8°C per minute above 40°C, enabling it to detect developing fires. The alarm is indicated by a red LED. 700 series heat detectors continuously monitor their own sensitivity and operating status; once a day, they perform a full diagnostic test that dynamically checks their internal electronic circuits and reports any abnormal conditions to the compatible panel.

Role in Fire Detection Systems

Heat detectors are preferred in areas with dust, steam or exhaust where smoke detectors are prone to false alarms. DT713-7 sends an alarm to the panel via the zone in these areas and allows the alarm to be monitored externally via a remote indicator connection. Its maximum application temperature of +65°C makes it suitable for areas with a high normal ambient temperature.

Why Choose It?

• High immunity to false alarms: Heat-based detection reduces nuisance alarms in smoky or dusty environments.
• Fixed threshold and ROR: A fixed threshold of 70°C and rate-of-rise detection are combined in a single device.
• Automatic self-diagnostics: Faults are reported to the panel through a daily dynamic test.
• Wide compatibility: Works with Aritech conventional systems and Aritech and Excellence conventional ZMUs.
• Polarity-independent: Installation is faster because the connection polarity does not matter.

Installation and Commissioning

The detector is fitted to the DB702 base, which is ceiling-mounted. Each 700 series base has a normally closed continuity link between the LINE IN (1) and LINE OUT (2) terminals, allowing zone wiring to be tested using the bases alone before the detectors are installed. When a detector is fitted, the link opens automatically; if the detector is removed, the panel generates a fault message. The device is polarity-independent.

Technical Specifications

• Status indicator: Red LED (alarm)
• User interface: LED
• Compatibility: Aritech conventional systems and Aritech and Excellence conventional ZMUs
• Reset voltage: <2.5 V
• Reset time: 1 s
• Number of alarm levels: 1
• Connection: 2-wire zone and remote indicator
• Power supply type: Zone-powered
• Operating voltage: 8.5 to 33 VDC
• Current consumption: 100 µA (quiescent at 24 VDC) / <60 mA (alarm at 24 VDC)
• Detection principle: Heat
• Sensitivity: Category B
• Zone length: Cable-dependent
• Alarm temperature (typical): +70°C ± 1.5°C
• Rate of rise (ROR): Above 40°C at 8°C/min
• Number of outputs: 1
• Remote alarm output: Indicator
• Dimensions: 100 x 50 mm (Ø x H)
• Net weight: 85 g
• Colour: Cream white (RAL 9001)
• Mounting type: Ceiling-mounted
• Housing material: Plastic
• Vandal-resistant: No
• Operating temperature: -10 to 65°C
• Storage temperature: −10 to +70°C
• Application temperature (maximum): +65°C
• Application temperature (typical): +40°C
• Relative humidity: %0 to %95 (non-condensing)
• Environment: Indoor
• IP rating: IP43
• Compliance: CE, REACH, RoHS 3, WEEE
• Certification: CPR
• Standard: EN54-5

Applications

• Boiler rooms
• Industrial kitchens
• Production areas with high ambient temperatures
• Generator and machine rooms
• Areas near dryers and ovens
• Lofts and plant rooms

Compatible Products

DT713-7 is used with the standard Aritech DB702 detector base. For a remote indicator, the AI672 or the buzzer-equipped AI673 can be used. In systems installed with Aritech 1X-F4 and 1X-F8 conventional panels, it can be used alongside optical detectors such as the DP721I and DP721T.

Frequently Asked Questions

At what temperature does DT713-7 trigger an alarm? The typical alarm temperature is +70°C ± 1.5°C; it also responds to a rise of 8°C/min above 40°C.

What is the difference from DT713-5? DT713-5 is Class A2 with a threshold of 57°C, while DT713-7 is Class B, with a threshold of 70°C, making it suitable for hotter environments.

Which base is it used with? It is used with the Aritech Dx700 series DB702 standard base.

At Narstek, we provide project support for the Aritech DT713-7 heat detector and conventional products in the 700 series. Contact us for a quote and technical information.