Gas detector OOHC740

heatfirecarbon monoxide

Product overview
SIEMENS Cerberus PRO OOHC740 fire and CO detector for very early and reliable detection of emerging fires by analysing smoke, heat and gas. Dual optical scatter (forward and backward), two heat sensors and an integrated CO sensor provide fast response to CO-generating fires and high immunity to nuisance phenomena. Selectable ASA parameter sets adapt detection behaviour to application environments. Additional channels enable CO life-safety detection and ambient thermal/CO monitoring. Compatible with C-NET systems and FS720 devices.

Notes
The detector base must be ordered separately.

Scope of delivery
Detector and dust cap

Accessories

• FDBZ291 — Identification plate
• FDBH291 — Detector heater
• DBZ1190-AA — Miniature junction terminal
• DBZ1194 — Protective cage
• DBZ1193A — Identification plate (alternate)
• DBZ1190-AB — Auxiliary terminal 2.5 mm²
• DB721 — Base DB721
• DB722 — Base DB722 for humid environments
• BA720 — Surface-mount base BA720
• BA721 — Base adapter for humid environments
• DBS720 — Base with integrated sounder
• RS720 — Base seal for humid conditions
• LP720 — Tamper device LP720
• PSR720-1 / PSR720-2 — End-of-line resistors

Characteristics / Technical specifications

• Standards: CEA 4021, EN 54-5, EN 54-7, EN 54-17, VdS 2806
• Protection category: IP40; IP42 with detector base seal (RS720)
• Operating voltage: DC 12…33 V
• Operating current: 0.38 mA
• Quiescent current: ~300…380 μA
• Operating temperature: -10…50 °C
• Storage temperature: -20…+55 °C
• Relative humidity: ≤95 % rel.
• External alarm indicator: 2
• System compatibility: C-NET -> FS720
• Communication protocol: C-NET
• Airflow tolerance: up to 20 m/s
• Materials: recyclable (SN36350)
• Detection features: ASA very-early detection algorithm; dual optical forward/backscatter; integrated CO sensor; dual temperature sensors; integrated short-circuit isolator (EN 54-17)
• Dimensions (Ø x H): 106 x 43 mm
• Color: Pure white, ~RAL 9010