The Aritech DP721RTA is a Dx700 series conventional multisensor detector (optical and heat) with an on-board relay and automatic reset. Combining smoke and heat sensing gives a fast response to both flaming and smouldering fires, and the detector resets itself when the event clears.
Important: the manufacturer states that the DP721RTA must not be used in applications requiring compliance with commercial or residential fire standards such as EN 54-5, EN 54-7, EN 54-29, CEA 4021 or EN 14604. Always ensure compliance with local codes and standards.
Key features
- Optical light-scatter and heat sensing in one head
- Automatic reset when the event clears
- Relay with COM/NO/NC contacts for easy supervision on any system
- Daily automatic self-diagnostics with drift compensation
- Separate fire and fault LEDs
- Magnet-activated sensitivity test mode
- Field-exchangeable, disposable optical chamber
- Wide operating voltage and polarity insensitive
Technical specifications
- Compatibility: Aritech conventional zones, 700 series conventional base
- Operating voltage: 8.5 to 33 V DC
- Current consumption: 100 µA quiescent, <60 mA in alarm
- Smoke sensitivity: 10%/m (+1.6%, -3.3%)
- Heat: rate-of-rise 8°C/min above 40°C, class A2
- Relay output: NO/C/NC, 1 A at 30 V DC, 0.5 A at 120 V AC
- Reset voltage: <2.5 V; reset time 1 s
- Dimensions: 100 mm diameter x 50 mm
- Weight: 112 g
- Colour: cloud white (RAL 9001)
- Operating temperature: -10 to +60°C
- Relative humidity: 0 to 95% non-condensing
- IP rating: IP43 (indoor)
