wheelock DB1 Service Manual

Horn - 103dB, Explosion Proof, High Output

DB1

Description:

This range of light weight, flameproof horns has been
designed with a high weatherproof rating to cope with the
harsh environmental conditions found offshore and onshore
in the oil, gas and petrochemical industries.

New electronic circuitry allows the DB1P and DB1HP to be
switched between two selectable tones by either reversing
the supply polarity, or connecting a second voltage supply.

The higher output are particularly suitable for noisy environ­ments.

Architects and Engineers Specifications

Features*:

★ UL Listed – Class I, Div 1. Groups C & D
★ Class I, Zone 1 and Zone 2 use
★ ATEX approved
★ NEMA 4x, IP66
★ Certified temperature –13°F to +158°F (–25°C to

+70°C)

★ NFPA 72 compliant
★ 4 wire diode monitored connection for operation

in supervisory mode

★ Up to 103 dBA output @ 10 feet
★ Marine grade alloy
★ Up to 27 output tones, user selectable
★ 12V, 24V & 48 VDC, 110 VAC
★ Tones can be selected remotely
★ Any two tones may be switched via the external

voltage supply

*Depends on version

Explosion-proof horns shall be UL Listed for Class I, Division 1, Groups C&D, and Class I, Zone 1 hazardous locations. The horns
shall be constructed of marine grade alloy with an epoxy paint finish and shall meet NEMA 4x and IP 66 environmental requirements
over a temperature range of -13°F to 158°F (-25°C to 70°C) in hazardous and harsh environments.

The horns shall have 27 user selectable output tones. Multiple horns shall be able to operate in synchronization. Rated current draw
at 24 vdc shall not exceed 250 mA for rated sound output of 93 dBA at 10 feet or 700 mA for rated sound output of 100 dBA at 10 feet.
The horns shall be capable of direct surface mounting.

Note: Due to continuous development of our products, specifications and offerings are subject to change without notice in accordance
with Cooper Wheelock standard terms and conditions.

ATEX

Specification

Certification: UL Listing:
Listing No. E187688.
ATEX approved: EExd, IIB T3
Cert No. Baseeta 02ETEX0207 for DB(1P)
Cert No. Baseeta 02ETEX0209 for DBH(P)

Material: LM25 corrosion resistant alloy or ANC4B stainless steel with

ABS flare.
Finish: Epoxy paint finish as standard or to customer's specification.
Max Sound Levels:

DB1H(P)=100 ± 3dB(A) @ 10 feet
Note: Sound level is dependent upon the tone selection.

Weight: DB1P 7.7lb./3.5 Kg approx.
DB1HP 12.3lb./5.6 Kg approx.

Certified Temperature: –13°F to +158°F (–25°C to +70°C)
Ingress Protection: NEMA 4x, IP66.
Tone Selection: 27 User Selectable Tones

stainless steel cover screws.

DB1(P)=93±3dB(A) (86±3dB(A) for 12V DB1).

1 Alt Tones 800/970 Hz at 1/4 sec. 15 554 Hz for 0.1S/440 Hz for 0.1S
2 Sweeping 800/970 Hz at 7 Hz 16 Int 660 Hz 150 mS on 150 mS off
3 Sweeping 800/970 Hz at 1 Hz 17 Int 660 Hz 1.8 sec. on 1.8 sec. off
4 Continuous at 2850 Hz 18 Int 660 Hz 6.5 sec. on 13 sec. off
5 Sweeping 2400-2850 Hz at 7 Hz 19 Continuous 660 Hz
6 Sweeping 2400-2850 Hz at 1 Hz 20 Alt 554/440 Hz at 1 Hz
7 Slow Whoop 21 Int 660 Hz at 7/8 Hz
8 Sweep 1200-500 Hz at 1 Hz 22 Int 2850 Hz 150 mS on 100 mS off
9 Alt Tones 2400/2850 Hz at 2 Hz 23 Sweep 800-970 Hz at 50 Hz
10 Int Tones of 970 Hz at 1 Hz 24 Sweep 2400-2850 Hz at 50 Hz
11 Alt Tones 800/970 Hz at 7/8 Hz 25 3x970 Hz pulses 0.5 off, 1.5 off
12 Int Tone at 2850 Hz at 1 Hz 26 3x2850z pulses 0.5 on/0.5 off, 1.5 off.
13 970 Hz at 1/4 sec. on 1 sec. off 27 Int 3100 Hz 0.3 sec. on 0.7 sec. off
14 Continuous at 970 Hz

Current
Consumption:

12V 125mA 900mA
24V 250mA 700mA

NOTE:- DB1H(P) DIMENSIONS IN BRACKETS

Configuration Options:

The following code is designed to help in the selection of the
correct unit. Build up the reference number by inserting the code
for each component into the appropriate box.

48V 250mA –
110V 60mA 200mA

Labels: Duty and tag labels optional.
Entries: Up to 3 x 1/2" or 3/4" NPT
Terminals: Suitable to accept up to 12AWG conductor size

Single Stage - 4 wire diode monitored connection - on board diode allows unit to be
operated in supervisory mode when monitoring line in reverse polarity

Two Stage - Switchable unit available in DC versions only either by:
(i) Reversing the polarity of the supply, or,
(ii) By a 3 wire common +ve system, switching between the -ve lines

Unit Type Voltage Cable Entries Duty Labels Tag Label Features Finish

Class I, Div 1, Groups C & D.

DB1(P) DB1H(P)

DB1P ULA
DB1HP ULA

Voltage Code

12V d.c. 012
24V d.c. 024
48V d.c.

DB1(P) only

048
110V a.c. 110
240V a.c. 240

Entries Code

1

/2" NPT C

3

/4" NPT D
LHS 1
RHS 2
Bottom 3

*

Prefix position with entry
size code
e.g. C1C3 = 20mm left and
bottom entries.

Duty Labels Code
None N

Required* D
*(Please specify)

Tag Label
None N

Required T
*Please specify

Features Code
Not required N

Yes* Y
*Please specify

Standard Models

Series Model Number Order Code Decription

DB1 DB1PULA024D1D2NNNR 109205-001 Multitone, 93dBA, 24 VDC, Red finish

DB1 DB1HPULA024D1D2NNNR 109205-002 Multitone, 100dBA, 24 VDC, Red finish

273 Branchport Avenue
Long Branch, NJ 07740
Phone: [phone]

WE ENCOURAGE AND SUPPORT NICET CERTIFICATION
Fax: [phone]
www.cooperwheelock.com

Finish Code
Red R

Grey G
Special S

3 YEAR WARRANTY

Made in USA

DB1 10/06