Aritech DB2016 Detector Base with Isolator

1. Product Name: Aritech DB2016 Isolator Detector Base

2. Description:

What Is the Aritech DB2016 Isolator Detector Base?

The Aritech DB2016 is a mounting base with an integrated short-circuit isolator for 2000 series addressable detectors. It detects overloads and short-circuit faults on the loop and isolates only the affected section. This prevents a single fault from causing the entire loop to lose communication.

Operating Principle

DB2016 continuously monitors the loop voltage and disconnects the negative line to isolate the faulty section when the line voltage falls to 14 V. When the fault is cleared and the voltage rises to 14,5 V, the connection is automatically restored. A yellow LED on the base indicates the isolation status. The detector fitted to the base continues to receive power during a short circuit; if every detector on the loop is fitted to an isolator base, no devices are lost in the event of a single short circuit.

Role in Fire Detection Systems

Isolators are essential to maintaining system integrity in an addressable loop topology. Regulations require that a single fault on the loop affect no more than one detection zone and no more than 32 devices. DB2016 meets this requirement at detector level and reduces the need for a separate isolator module. For complete protection, the manufacturer recommends using a DB2016 base with every detector.

Why Choose It?

• Loop protection: Prevents the loss of the entire loop in the event of overloads and short circuits.
• Automatic reset: The connection is restored automatically once the fault is cleared.
• Visual indication: The yellow LED makes the isolation status easy to identify on site.
• Detector remains operational: The detector on the base continues to operate during a single short circuit.
• Standards compliance: Complies with EN54-17 and is CPR-certified.

Installation and Commissioning

DB2016 is mounted on the ceiling in the same way as standard 2000 series bases; the loop in and out conductors, earth and, if required, remote indicator connection are wired to the terminals. As the base is powered from the loop, no additional power supply is required. The detector head is fitted and turned into place; the detector can be locked by removing the locking tab, if required. The product is suitable for use in dry indoor locations only. During commissioning, the number and positioning of isolators should be planned with the device limit per zone in mind.

Technical Specifications

• Status indicator: Yellow LED
• Compatibility: Aritech 2000 series point detectors
• Connection: 2-wire loop, earth and remote indicator
• Power supply type: Loop-powered
• Operating voltage: 17 – 34 V (28 V nominal)
• Current consumption: 30 µA (standby) / <1,6 mA (when isolated)
• Cable core count: 2
• Terminal count: 5
• Monitoring: Short circuit
• Isolation type: Negative line disconnection
• Isolation voltage: 14 V
• Reconnection voltage: 14,5 V
• Switching current: 800 mA (max.)
• Series resistance: 0,1 Ω
• Dimensions: 100 x 13 mm (Ø x H)
• Net weight: 49 g
• Colour: Cloud white (RAL 9001)
• Mounting type: Ceiling-mounted
• Housing material: Plastic
• Operating temperature: −10 to +55 °C
• Storage temperature: −10 to +70 °C
• Relative humidity: 10%–95% (non-condensing)
• Protection rating: IP30
• Compliance: CE, REACH, RoHS 2, WEEE
• Certification / Standard: CPR, EN54-17

Applications

• Hospitals and intensive care areas
• Airports and terminal buildings
• Large shopping centres
• Data centres
• High-rise offices and residences
• Administrative areas of industrial facilities

Compatible Products

DB2016; compatible with 2000 series detectors such as the DP2061N optical smoke detector, DP2061T multisensor detector and DT2063N heat detector. Manufacturer data also lists the AS2368CAP-W locking cap among compatible products. Where an isolator is not required on the same loop, it can be used with a DB2002 standard base or a DB2004 deep base.

Frequently Asked Questions

Does DB2016 require manual intervention after a short circuit? No. Once the fault has been rectified and the line voltage rises to 14,5 V, the base automatically restores the connection.

Is it necessary to use an isolator base for every detector? It is not mandatory; however, for full protection, the manufacturer recommends using DB2016 with every detector. At a minimum, a single fault should not affect more than 32 device.

How can the isolation status be identified? The yellow LED on the base lights up to indicate isolation.

At Narstek, we provide project support for loop design, isolator placement and commissioning of Aritech 2000 series systems. Contact us to request a quote for the DB2016 isolator detector base.