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European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH www.e2s.com Tel: +44 (0)208 743 8880
Document No. D211-00-651-IS-SC-UL Issue: A 26-07-2022 Sheet 1 of 4
FIRE INSTRUCTION MANUAL
D2XC2XH1 & D2XC2XH2 UL1971 Alarm Horn and Xenon
Beacon for use in Hazardous Locations
1)
Rating & Marking Information
1.1 Public Mode Fire Alarm Ratings
The D2xC2XH1 and D2xC2XH2 are certified for use as public mode audible and visual alarm devices in accordance with UL1971 /
UL1638 & UL464.
For use in public-mode fire alarm systems the equipment must be installed without the wire guard or plastic lens cover on the beacon.
For light output ratings of the beacon see section 10.
For Fire Alarm applications, the Sounder Volume must be at the highest setting, (see volume control section).
The sounder section produces a sound pressure level above 75dB(A) at 10 feet.
For fire alarm use, the temporal pattern tone No. 12 as per the tone table provided in these instructions must be selected. This tone
produces a minimum sound pressure level of:
CAN/ULC-S525: 100.4dB(A)* at 10 feet.
(*anechoic room)
UL464:
92.2dB(A)
†
at 10 feet.
(
†
reverberation room)
Testing of synchronization requirements of UL1971 & UL1638 / CAN/ULC-S526 were conducted by UL using a total of 6 units
connected to the same wire run. Auto-synchronization does not require the use of any external sync modules or protocols. Providing
the correct cable has been selected (see section 6) an unlimited number of units will remain synchronized when powered from the
same source.
2)
Light output for Fire alarm use
In order to meet the requirements for UL 1971, (when used with 1Hz Flash rate), the installation must be carried out to the correct
NFPA standards and guidelines.
2.1
Horizontal Light Output Dispersion for wall mounting – public mode
0°
15°
15°
30°
45°
60°
75°
90°
90°
30°
45°
60°
75°
Fig. 1 – Horizontal dispersion angles for wall mounting
Table 1A - D2xC2XH1 - Horizontal Light Output Dispersion for Wall Mounting
Viewing Angle
% Of Rating
Intensity (cd) at 1Hz flash rate
0
⁰
100
18.18
5-25
⁰
90
16.36
30-45
⁰
75
13.64
50
⁰
55
10.00
