Eaton DB3B UL Bedienungsanleitung

The horn – DB3B UL

Technical manual

ii THE HORN – DB3B UL TM261 April 2020 www.eaton.com

DISCLAIMER OF WARRANTIES AND LIMITATION OF LIABILITY

The information, recommendations, descriptions and safety notations in this document are based on Eaton Corporation’s

(“Eaton”) experience and judgment and may not cover all contingencies. If further information is required, an Eaton sales

office should be consulted. Sale of the product shown in this literature is subject to the terms and conditions outlined in

appropriate Eaton selling policies or other contractual agreement between Eaton and the purchaser.

THERE ARE NO UNDERSTANDINGS, AGREEMENTS, WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING

WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY, OTHER THAN THOSE

SPECIFICALLY SET OUT IN ANY EXISTING CONTRACT BETWEEN THE PARTIES. ANY SUCH CONTRACT STATES THE

ENTIRE OBLIGATION OF EATON. THE CONTENTS OF THIS DOCUMENT SHALL NOT BECOME PART OF OR MODIFY

ANY CONTRACT BETWEEN THE PARTIES.

In no event will Eaton be responsible to the purchaser or user in contract, in tort (including negligence), strict liability or

other-wise for any special, indirect, incidental or consequential damage or loss whatsoever, including but not limited to

damage or loss of use of equipment, plant or power system, cost of capital, loss of power, additional expenses in the

use of existing power facilities, or claims against the purchaser or user by its customers resulting from the use of the

information, recommendations and descriptions contained herein. The information contained in this manual is subject to

change without notice.

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Contents

1.0 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

2.0 GENERAL SAFETY MESSAGES AND WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

3.0 INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Access to terminals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Wiring details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

AC version wiring details (Types 1 & 2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

DC version – 3 stage without monitoring wiring details (Type 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

DC version – Dual stage common +ve with monitoring (standard configuration) wiring details (Type 4) . . . . . . . . 3

DC Version – Up to 3 user selectable stages with 2 independantly powered stages (Type 5) 3

DC version – Up to 3 stage with or without monitoring (alternative configuration) wiring details (Type 6) . . . . . . . 4

DC version with voltage free stage activation wiring details (Type 7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

4.0 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Directional characteristics:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

5.0 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

6.0 CERTIFICATION/APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Electrical ratings: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

7.0 SPECIAL CONDITIONS FOR SAFE USE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

8.0 FUNCTIONAL SAFETY ...............................................................11

Introduction ................................................................................11

Assessment of functional safety................................................................11

Conditions of safe use....................................................................... 12

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1.0 Introduction

This range of horns, suitable for fire alarm or general use,

is intended for use in potentially explosive gas (G) or gas

and dust (GD) atmospheres.

The enclosure is manufactured from a UV stable glass

reinforced polyester with a rugged thermoplastic flare.

Stainless steel mounting bracket, cover screws and

fixings are incorporated throughout thus ensuring a

corrosion free product.

A UL ordinary locations listed version is also available for

use in non-explosive atmospheres.

2.0 General safety messages and

warnings

All instructions and safety messages in this manual must

be followed to allow safe installation of the device. The

device must only be installed and maintained by correctly

trained site personnel/installers.

I. To reduce the risk of ignition of hazardous

atmospheres and shock, do not apply power to the

device until installation has been completed and the

device is fully sealed and secured.

II. To reduce the risk of ignition of hazardous

atmospheres and shock, keep device tightly closed

when the circuit is energised.

III. Before removing the cover for installation or

maintenance, ensure that the power to the device

isisolated.

IV. Following installation, test the device to ensure

correct operation.

V. Following installation ensure a copy of this manual

ismade available to all operating personnel.

VI. When installing the device, requirements for

selection, installation and operation should be

referred to e.g. IEE Wiring Regulations and the

‘National Electrical Code’ in North America. Additional

national and/or local requirements may also apply.

VII. Cable termination should be in accordance with the

specification applying to the required application.

MEDC recommends that all cables and cores should

be correctly identified. Please refer to the wiring

diagram in this manual (or separate diagram provided

with the unit).

VIII. This is an Ex d product, correctly listed or certified

explosion proof cable glands and stopping plugs must

be used.

IX. Ensure that only the correct listed or certified

stopping plugs are used to blank off unused gland

entry points and that the NEMA/IP rating of the unit

is maintained.

X. MEDC recommend the use of a sealing compound

such as HYLOMAR PL32 on the threads of all glands

and stopping plugs and/or a suitable sealing washer

in order to maintain the IP rating of the unit.

XI. The internal earth terminal must be used for

protective earthing when required. Do not remove

the internal ground strap from the earth terminal

where fitted.

For units with metric entries; gland continuity and

earthing my be achieved with an optional external

earth plate. If the external plate is fitted, a thread

sealing compound such as HYLOMAR PL32 must be

employed to maintain the IP rating of the unit.

XII. When installing the device, MEDC recommends the

use of stainless steel fasteners. Ensure that all nuts,

bolts and fixings are secure.

XIII. The unit should be positioned such that debris, dust

or water cannot settle in the re-entrant horn.

XIV. The unit should be positioned such that any solid

object, not part of the equipment, is a minimum of

40mm from the Ex d flamepath joint.

3.0 Installation

The unit is mounted via 2 off Ø23/64” (Ø9mm) fixing

holes in the U-shaped stirrup/mounting bracket. If

required, the unit can be initially placed via the Ø33/64”

(Ø13mm) central hole in the stirrup. The unit can then

berotated to the required position and fixed via the

otherholes.

If ordered with the unit, a swivel mounting bracket option

is available to allow further rotational adjustment to

the unit.

The fixing holes have been designed to accept an Ø5/16”

(M8) screw or bolt.

Access to terminals

The cover is secured with 6 off M5 cover screws

(4.0mm A/F hexagon key). Once the cover fixings are

unscrewed, the cover can be lifted away from the

enclosure to gain access to the interior. The cover fixings

are captive and will remain in the cover.

Once termination is complete, carefully replace the

cover assembly back onto the body, avoiding damage to

the mating surfaces. Tighten the cover screws evenly.

Ensure the O-ring is seated correctly on the cover during

reassembly. Ensure the required maximum gap of

0.0015” (0.038mm) is maintained between the cover and

the enclosure body once assembled.

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Wiring details

The unit is available in a number of basic configurations:

1. AC input, single stage.

2. AC input, dual stage with voltage-free stage selection.

3. DC input, up to 3 user selectable stages without

monitoring.

4. DC input, up to 2 user selectable stages with

EOL/monitoring (standard configuration).

5. DC input, up to 3 user selectable stages with 2

independantly powered stages.

6. DC input, up to 3 user selectable stages with optional

EOL/monitoring (alternative configuration).

7. DC input, 5 user selectable stages with voltage free

stage selection with or without monitoring.

AC version wiring details (Types 1 & 2)

• Type 1: Connect the live and neutral supply wires to

the terminals as detailed in the wiring diagram. The

unit will be supplied with the link between R1 and R0

fitted to the terminals. When power is applied to the

unit, the stage 1 tone will be produced as selected

on the 5- way DIP switch.

• Type 2: Connect the live and Neutral supply wires

to the terminals as detailed in the wiring diagram.

The unit will be supplied with no link fitted between

R1 and R0. Connect wires and remote switches to

terminals R0, R1 and R2 as shown. When power is

initially applied to the unit, no tone will be produced.

When the switch connected to R1 is closed, the

stage 1 tone will be produced as selected by the

5-way DIP switch on the electronics assembly.

When the switch connected to R2 is closed, the

pre-selected tone for stage 2 is produced. See tone

table 2 for details of pre-selected tones.

ote:N Closing both switches will produce no tone.

DC version – 3 stage without monitoring wiring

details (Type 3)

This type can be configured in a number of different ways

depending on requirements. Independent tone selection

for all 3 stages is via the 3 off 5-way DIP switches fitted

to the electronics assembly:

• 2-wire system (Single stage): Connect the positive

and negative supply wires to the terminals as detailed

in the wiring diagram.

• 2-wire system (Dual stage, reverse polarity):

Connect the positive and negative supply wires to

the terminals as detailed in the wiring diagram. The

second stage is produced by reversing the polarity of

the supply to the unit.

• 3-wire system (Dual stage, common +ve): Connect

3 supply wires to the terminals as detailed in the

wiring diagram (1 common +ve wire and 2 -ve wires).

Stage 1 is produced when power is applied across the

common +ve and stage 1 -ve terminals. Stage 2 is

produced when power is applied across the common

+ve and stage 2 -ve terminals.

• 3-wire system (Dual stage, common -ve): Connect

3 supply wires to the terminals as detailed in the

wiring diagram (2 +ve wires and 1 common -ve wire).

Stage 1 is produced when power is applied across

the stage 1 +ve and common -ve terminals. Stage 2

is produced when power is applied across the stage 2

+ve and stage common -ve terminals.

• 4-wire system (Triple stage, Common -ve): Connect

4 supply wires to the terminals as detailed in the

wiring diagram (3 +ve wires and 1 common -ve wire).

Stage 1 is produced when power is applied across

the stage 1 +ve and common -ve terminals. Stage 2

is produced when power is applied across the stage 2

+ve and common -ve terminals. Stage 3 is produced

when power is applied across the stage 3 +ve and

common -ve terminals.

All versions are supplied with terminals to allow

loop-in loop-out connection of the supply wires.

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DC version – Dual stage common +ve with

monitoring (standard configuration) wiring

details (Type 4)

Connect up to 4 supply wires to the terminals as detailed

in the wiring diagram. Stage 1 is produced when power

is applied across the common +ve and stage 1 -ve

terminals. Stage 2 is produced when power is applied

across the common +ve and stage 2 -ve terminals.

Monitoring functionality is obtained when the supply is

connected across M1 & M2 terminals.

ote:N monitored terminals are not polarity dependent

DC Version – Up to 3 user selectable stages

with 2 independantly powered stages (Type 5)

Connect up to 4 supply wires to the terminals as detailed

in the wiring diagram. Stage 1 is produced when power is

applied across the stage 1 terminals. Stage 2 is produced

when power is applied across the stage 2 terminals.

Stages 1 and 2 may be powered from independent

supplies. Stage 3 is produced when power is applied to

both the stage 1 and stage 2 terminals.

Resistors may be added to the terminals as shown for

monitoring purposes. Monitoring functionality is available

at all times if a suitable monitoring relay is used in

the system.

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DC version – Up to 3 stage with or without mon-

itoring (alternative configuration) wiring details

(Type 6)

ote:N This alternative configuration must be specified

when ordering the unit.

This type can be connected either as a three stage

common –ve configuration, or if an optional EOL is

specified if can be configured as a dual stage common

–ve system with monitoring.

• 4-wire system (Triple stage, Common +ve): Connect

4 supply wires to the terminals as detailed in the

wiring diagram (1 common +ve wire and 3 -ve wires).

Stage 1 is produced when power is applied across the

common +ve and stage 1 -ve terminals. Stage 2 is

produced when power is applied across the common

+ve and stage 2 -ve terminals. Stage 3 is produced

when power is applied across the common +ve and

stage 3 -ve terminals.

• 4-wire system (Dual stage, common –ve with

monitoring): Connect 4 supply wires to the terminals

as detailed in the wiring diagram. Stage 1 is produced

when power is applied across the common -ve and

stage 1 +ve terminals. Stage 2 is produced when

power is applied across the common -ve and stage 2

+ve terminals.

Monitoring functionality is obtained when the supply is

connected across M1 & M2 terminals.

ote:N monitored terminals are not polarity dependents

DC version with voltage free stage activation

wiring details (Type 7)

Connect the positive (+ve) and negative (-ve) supply wires

to the terminals as detailed in the wiring diagram. When

power is applied to the unit, no tone will be produced

initially. Connect wires and remote switches to terminals

R0 to R5 as shown. When the switch connected to R1 is

closed, the stage 1 tone will be produced as selected by

the 5-way DIP switch on the electronics assembly. When

any of the other switches connected to R2 to R5 is closed,

the pre- selected tone for stages 2 to 5 are produced.

See tone table 2 for details of pre-selected tones.

ote:N Closing more than one switch at a time will result

in no tone being produced.

4.0 Operation

The sounder is available in various AC and DC input

voltage versions.

For AC versions, 120Vac and 240Vac units comply with

regulated supply limits, for all other AC versions, the

nominal operating voltage is stated on the unit label and

the supply voltage tolerance is ±10%.

For 12-48Vdc versions, the absolute input voltage range is

11.0Vdc to 58.0Vdc.

The unit is fitted with a volume control which is

positioned on the top face of the electronics assembly

PCB. Maximum volume is obtained when this control is

turned fully clockwise. When turned fully anti-clockwise

the unit will emit no sound. For fire alarm use, if the

control is not set to maximum volume, ensure the output

from the horn meets the minimum level required by the

relevant standards.

Warning: Do not attempt to turn the volume control past

its limits of movement as this may cause damage to

the unit.

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Stages

For all versions, a 5-way DIP switch selects the stage required for each stage. The settings for the standard stages are

shown in the table below:

Tone table 1:

Tone no. Tone freq/description Switch setting 12345 Tone description

1Alt Stages 800/970 Hz at 1/4 sec 11111

2Sweeping 800/970 Hz at 7 Hz 11110 Fast Sweep (LF)

3Sweeping 800/970 Hz at 1 Hz 11101 Medium Sweep (LF)

4Continuous at 2850 Hz 11100

5Sweeping 2400-2850 Hz at 7 Hz 11011 Fast Sweep

6Sweeping 2400-2850 Hz at 1 Hz 11010

7Slow Whoop 11001 Slow Whoop

8Sweep 1200-500 Hz at 1 Hz 11000 Din Stage

9Alt Stages 2400/2850 Hz at 2 Hz 10111

10 Int Stage of 970 Hz at 1 Hz 10110 Back-up Alarm (LF)

11 Alt Stages 800/970 Hz at 7/8 Hz 10101

12 Int Stage at 2850 Hz at 1Hz 10100 Back-up Alarm (HF)

13 970 Hz at 1/4 sec on 1 sec off 10011

14 Continuous at 970 Hz 10010

15 554 Hz for 0.1S/440 Hz for 0.4S 10001 French Fire Sound

16 Int 660 Hz 150 mS on 150 mS off 10000 Swedish Fire Alarm

17 Int 660 Hz 1.8 sec on 1.8 sec off 01111 Swedish Fire Alarm

18 Int 660 Hz 6.5 sec on 13 sec off 01110 Swedish Fire Alarm

19 Continuous 660 Hz 01101 Swedish Fire Alarm

20 Alt 554/440 Hz at 1 Hz 01100 Swedish Fire Alarm

21 Int 660 Hz at 7/8 Hz 01011 Swedish Fire Alarm

22 Int 2850 Hz 150 mS on 100 mS off 01010 Pelican Crossing

23 Sweep 800-970 Hz at 50 Hz 01001 Low Freq. Buzz

24 Sweep 2400 -2850 Hz at 50 Hz 01000 High Freq. Buzz

25 3x970 Hz pulses 0.5 off, 1.5 off 00111

26 3x2850 Hz pulses 0.5on/0.5off, 1.5 off 00110

27 Int 3100 Hz 0.32s on/0.68s off 00101

28 Continuous 1400 Hz 00100

29 Spare/Custom tone 00011

30 Spare/Custom tone 00010

31 Spare/Custom tone 00001

32 Spare/Custom tone 00000

ote:N If special tones were requested at the time of ordering, please see the separate tones list supplied with the unit

for details of these special tones and their respective switch settings.

Tone table 2: Pre-selected tone details for voltage-free activation stages:

Tone no. Tone freq/description Switch

setting 12345 Voltage free stage selection tone no.

DC AC

Stage 1 Stage 2 Stage 3 Stage 4 Stage 5 Stage 2

1Alt Tones 800/970Hz at 1/4 sec 11111 T14 T10 T11 T8 T14

2Sweeping 800/970Hz at 7 Hz 11110 T14 T10 T1 T8 T14

3Sweeping 800/970Hz at 1 Hz 11101 T14 T10 T1 T8 T14

4Continuous at 2850Hz 11100 T14 T10 T1 T8 T14

5Sweeping 2400-2850Hz at 7Hz 11011 T14 T10 T1 T8 T14

6Sweeping 2400-2850Hz at 1Hz 11010 T14 T10 T1 T8 T14

7Slow Whoop 11001 T14 T10 T1 T8 T14

8Sweep 1200-500Hz at 1Hz 11000 T14 T10 T1 T6 T14

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9Alt Tones 2400/2850Hz at 2Hz 10111 T14 T10 T1 T8 T14

10 Int Tone of 970Hz at 1Hz 10110 T14 T12 T1 T8 T14

11 Alt Tones 800/970Hz at 7/8Hz 10101 T14 T10 T1 T8 T14

12 Int Tone at 2850Hz at 1Hz 10100 T14 T10 T1 T8 T14

13 970Hz at 1/4 sec on 1 sec off 10011 T14 T10 T1 T8 T14

14 Continuous at 970Hz 10010 T28 T10 T1 T8 T28

15 554Hz for 0.1S/440Hz for 0.4S 10001 T14 T10 T1 T8 T14

16 Int 660Hz 150 mS on 150 mS off 10000 T14 T10 T1 T8 T14

17 Int 660Hz 1.8 sec on 1.8 sec off 01111 T14 T10 T1 T8 T14

18 Int 660Hz 6.5 sec on 13 sec off 01110 T14 T10 T1 T8 T14

19 Continuous 660Hz 01101 T14 T10 T1 T8 T14

20 Alt 554/440Hz at 1Hz 01100 T14 T10 T1 T8 T14

21 Int 660Hz at 7/8Hz 01011 T14 T10 T1 T8 T14

22 Int 2850Hz 150 mS on 100 mS off 01010 T14 T10 T1 T8 T14

23 Sweep 800-970Hz at 50Hz 01001 T14 T10 T1 T8 T14

24 Sweep 2400-2850Hz at 50Hz 01000 T14 T10 T1 T8 T14

25 3x970Hz pulses 0.5 off, 1.5 off 00111 T14 T10 T1 T8 T14

26 3x2850Hz pulses 0.5on/0.5off, 1.5 off 00110 T14 T10 T1 T8 T14

27 Int 3100Hz 0.32s on/0.68s off 00101 T14 T10 T1 T8 T14

28 Continuous 1400Hz 00100 T14 T10 T1 T8 T14

29 Spare/Custom tone 00011

30 Spare/Custom tone 00010

31 Spare/Custom tone 00001

32 Spare/Custom tone 00000

Sound Pressure Output

Audibility ratings according to UL464 and sound pressure level according to CAN/ULC-S525 are as below tested on tones

4, 14, 19 and 28:

Flare Option Tone No. Audibility Rating UL464

(dBA at 10ft) CAN/ULC-S525

(dBA at 3m)

Long Flare 484.9 96.9

Long Flare 14 95.4 99.4

Long Flare 19 92.5 92.2

Long Flare 28 96.8 105.4

Short Flare 485.4 94.6

Short Flare 14 94.2 94.9

Short Flare 19 83.2 88.3

Short Flare 28 96.1 101.5

Directional Characteristics

SPL directional characteristics as measure in accordance with CAN/ULC-S525, measured on Tone 19.

Angle OSPL (dBA) Angle OSPL (dBA)

Short Flare Version Horizontal Axis

Reference (90º) 89.9 Reference (90ºC) 89.9

139 86.9 (-3 dBA) 46 86.9 (-3 dBA)

148 83.9 (-6 dBA) 35 83.9 (-6 dBA)

180 81.8 0º 81.5

Short Flare Version Vertical Axis

Reference (90º) 89.8 Reference (90º) 89.8

143 86.8 (- 3 dBA) 47 86.8 (-3 dBA)

150 83.8 (- 3 dBA) 35 83.8 (-6 dBA)

180 82.2 0º 81.2

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