Siemens OOHC740 - Page 100

Specifications
Technical data for OOH740
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100 | 108
Building Technologies
A6V10305793_m_en_
--
Fire Safety
2016-02-15
External alarm indicator
External alarm indicators which can be
connected
2 external alarm indicators and 1 sounder base
Voltage DC 10…17 V
Current 9…15 mA
Flashing interval times:
● Normal bright flashing 15 ms
● Faint flashing 1 s
Device characteristics Response sensitivity (typ.) 1.5…12 %/m (depending on the parameter set)
Note: The limit for the 'Ultra Sensitive' parameter
set is 0.5 %/m. However, this parameter set does
not meet the requirements of EN 54-7.
● Permissible wind speed Max. 5 m/s
● Compensation speed ≤ 1/45 voltage increase for detection/h
Ambient conditions Operating temperature -25…+55 °C
Storage temperature -30…+70 °C
Optimum storage temperature 0…+20 °C
Air humidity ≤95 % rel.
Protection category (IEC 60529):
● Detector base DB721/DB721D/DB110 IP40
● Detector base DB721/DB721D/DB110 and
sounder base DBS720 with detector base
seal RS720
IP44
● Sounder base DBS720 IP40
● Base attachment wet BA721 IP44
Electromagnetic compatibility:
● 10 kHz…2.7 GHz 50 V/m
Mechanical data Dimensions (Ø x H) with detector base: 117 x 49 mm
Color ∼RAL 9010 pure white
Standards European standards ● EN 54-5
● EN 54-7
● EN 54-17
● CEA 4021