E2s Bexcp3a-bg User manual

European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH sa[email protected] Tel: +44 (0)208 743 8880

Document D150-00-155-IS Issue 2 11-08-2022 Sheet 1 of 3 www.e2s.com Fax +44 (0)208 740 4200

INSTRUCTION MANUAL

BExCP3C-PB Push Button Manual Call Point

For use

Flammable

Gas and

Dust Atmospheres

BExCP3C-PB

Manual Call Point – Push Button

With resistor Modules

For use in Flammable Gas and

Combustible Dust Atmospheres

1) Introduction

The BExCP3C-PB is a push button manual call

point which is certified to the European and

International Gas and Dust standards. The unit

meets the requirements of the ATEX directive

2014/34/EU and IECEx scheme.

The call point can be used in hazardous areas

where potentially flammable gas and dust

atmospheres may be present.

All units have up to two of the following:

 Monitoring resistors up to 1.5W per module

 Monitoring diode

 Monitoring Zener diode

The units are Group II, EPL (equipment protection

level) Gb. The equipment is certified ‘Ex db eb mb

IIC T4 Gb’ and as such may be used in Zones 1

and 2 with flammable gases and vapours with gas

groups IIA, IIB & IIC and temperature classes T1,

T2, T3 and T4.

These units are also Group III, EPL Db. The

equipment is certified ‘Ex tb IIIC T75ºC Db’ and as

such may be used in Zones 21 and 22 for

combustible dusts groups IIIA, IIIB & IIIC.

2) Ratings & Marking

All units have a rating label, which carries the

following important information: -

Unit Type No.:

BExCP3C-PB Manual Call Point

Input Voltages:

Important: See section 7.1 for current ratings

125VDC Max 0.5A Max. Resistive Load;

0.03A Max Inductive Load

75VDC Max 0.75A Max

48VDC Max 1.0A Max

24VDC Max 5.0A Max Resistive Load;

3.0A Max Inductive Load

12VDC Max 5.0A Max

6VDC Max 5.0A Max

Code:

BExCP3C-PB

Ex db eb mb IIC T4 Gb

Ex tb IIIC T75ºC Db

IP66

–40ºC <= Ta <= +65ºC

Certificate No.:

SIRA 09ATEX3286X

IECEx SIR 09.0121X

CSAE 21UKEX3556X

Epsilon x: II 2GD

CE Marking

Notified 2813

Body No.

UKCA Marking

Notified Body No. 0518

Year/Serial No. i.e. 20/1CP3CPB000001

WARNING - DO NOT OPEN WHEN AN

EXPLOSIVE ATMOSPHERE MAY BE PRESENT

3) Type Approval Standards

The beacon has an EC Type examination

certificate issued by SIRA and have been approved

to the following standards: -

EN60079-0:2018 / IEC60079-0:2017

EN60079-1:2014 / IEC60079-1:2014

EN60079-7:2015 / IEC60079-7:2017

EN60079-18:2015 / IEC60079-18:2014

EN60079-31:2014 / IEC60079-31:2013

The equipment is certified for use in ambient

temperatures in the range

BExCP3C-PB -40oC to +65oC

and shall not be used outside this range.

4) Installation Requirements

Installation of this equipment shall only be carried

out by suitably trained personnel in accordance

with the applicable code of practice e.g.

IEC 60079-14/EN 60079-14

Repair of this equipment shall only be carried out

by the manufacturer or in accordance with the

applicable code of practice e.g. IEC 60079-19/EN

60079-19.

Refer to certificates SIRA 09ATEX3286X, IECEx

SIR 09.0121X and CSAE 21UKEX3556X for

special conditions of safe use.

The certification of this equipment relies on the

following materials used in its construction:

Enclosure: Aluminium Pressure Die Cast Body

LM6

Through enclosure mechanism: Plastic Nylon Zytel

Injection Moulded

Sealing of enclosure and mechanism: O-ring

Acrylonitrile-Butadiene Rubber

Potting Compound of resistors where used: Epoxy

Resin

If the equipment is likely to come into contact with

aggressive substances, then it is the responsibility

of the user to take suitable precautions that prevent

it from being adversely affected, thus ensuring that

the type of protection is not compromised.

“Aggressive substances” - e.g. acidic liquids or

gases that may attack metals, or solvents that may

affect polymeric materials.

“Suitable precautions” - e.g. regular checks as part

of routine inspections or establishing from the

material’s data sheet that it is resistant to specific

chemicals.

5) Call Point Location and Mounting

The location of the call point should enable ease of

access for operation and testing. The unit should

be mounted using the 4 off fixing holes which will

accept up to M4 sized fixings.

View of base unit showing fixing centres.

To gain access to the mounting holes in the base

the front cover must be removed.

This is achieved by removing the 4 off M4 cap

head bolts holding on the cover.

Once the screws are removed the cover will hang

down out of the way to gain access to the Ex e

terminal block, the internal earth terminal and

mounting hole recesses.

European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH sa[email protected] Tel: +44 (0)208 743 8880

Document D150-00-155-IS Issue 2 11-08-2022 Sheet 2 of 3 www.e2s.com Fax +44 (0)208 740 4200

6) Earthing

The unit has both internal and external earth

terminals.

It is recommended that a cable crimp lug is used

on the earth wires.

The internal earth wire is placed under an earth

clamp which will stop the cable twisting. This

secured by an M4 screw and spring washer.

The external earth lug should be located between

the two M5 washers provided and securely locked

down with the M5 spring washer and two locknuts.

Internal Earth

terminals External

Earth Stud

Ex e terminal block

Note: Depending on options chosen an 8-Way DIN

Rail or 6-Way terminal block may be selected.

7) Cable connections

There are 3 off cable entry holes suitable for

M20x1.5 Ex e approved cable glands or stopping

plugs with a minimum ingress protection of IP66.

The unit can be wired in a number of different ways

depending on the resistor combination selected.

Refer to wiring schematic D150-06-051 for detail.

EOL (End of line) device:

resistor – ExxxR / diode – ED1 / zener – ExxxZ

Series (In line) device:

resistor – SxxxR / diode – SD1 / zener – SxxxZ

Microswitch 1 = M/S 1

When wiring to Increased Safety terminal

enclosures, you are only permitted to connect one

wire into each way on the terminal block, unless a

pair of wires are crimped into a suitable ferrule.

For the six-way terminal block wire sizes allowable

are 0.5mm² to 4.0mm². For the 8-way DIN rail wire

sizes allowable are 0.5mm² to 2.5mm²

Leads connected to the terminals shall be insulated

for the appropriate voltage and this insulation shall

extend to within 1mm of the metal of the terminal

throat. They shall only be installed and wired with

cable in an ambient temperature of -10°C to

+80°C.

All terminal screws, used or unused, shall be

tightened down to between 0.5 Nm and 0.7 Nm.

Voltage

option

Max

Voltage

Min resistor value

allowable in module

Type

unit (

6 V dc

27 ohms

12V dc

12 V dc

110 ohms

24V dc

24 V dc

430 ohms

48V dc

48 V dc

1K8 ohms

Table 1

7.1) Current Limitations

The maximum allowable current is determined as

the smallest value from the following scenarios:

1. When both module resistor values are the

same as or above the minimum range of

values shown in table 1, the current is not

further limited.

However, when either resistor value is lower

than those shown in table 1, the current must

be limited to the values given in table 2.

Voltage

option

Max

Voltage

Max current when

resistor values lower

than m

inimum

6 V dc

250mA

12V dc

12 V dc

24V dc

24 V dc

62mA

48V dc

48 V dc

31mA

Table 2

For example, if a 24V DC unit is fitted with a

series resistor of 270 ohms, the maximum

current of the unit would be reduced to 62mA

since the resistance is less than the minimum

430 ohms allowable at this voltage.

E2S recommends a minimum resistor value

of 100 ohms for a Series device and 180

ohms for an EOL device fitted to a 24V unit.

2. If a diode module is pre-fitted as either an

EOL or Series Device, the following current

limitation applies:

Unit Voltage

ax. Diode Current

48V DC 0.75A

6, 12

& 24V DC

2.0A

3. If a Zener diode module is pre-fitted as either

EOL or Series device, the following current

limitation applies:

Zener

Voltage

Max. Input

Voltage

Max. Current

3.3V

56V DC

230mA

4.7V

162

5.1V

149mA

5.6V

136mA

6.2V

2mA

6.8V

112mA

10V

76mA

12V

63mA

8) Testing unit operation

The push button unit can be tested without the

need to replace any element.

To test, lift the cover lift flap to reveal the push

button. The button should be pressed into the body

to activate the unit and place it into the operated

condition.

The call point switch will now change over its

contacts to operate the alarm.

Once testing is complete the unit needs to be reset

from the operated condition.

Rotate the push button anticlockwise by an angle

of 55º, see guide alignment marks on button and

cover, shown below (1). The push button should

pop back up to its original position.

Ensure that the push button has also twisted back

clockwise by 55º to its original position see guide

marks on button and cover, shown below (2).

The unit is now reset.

1. On operated unit 2. Button should pop

Twist push button up and twist back to

Anticlockwise 55º original position

to reset

Note: use alignment

marks circled to

indicate the push

button’s status

/position.

Unit currently shown

as ‘standby

condition’

Resetting an operated unit is the same as resetting

a tested unit.

European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH sa[email protected] Tel: +44 (0)208 743 8880

Document D150-00-155-IS Issue 2 11-08-2022 Sheet 3 of 3 www.e2s.com Fax +44 (0)208 740 4200

9) SIL 2 Reliability Data

Reliability and Functional safety IEC/EN61508

which has been assessed and is considered

suitable for use in low demand safety function:

• Random Hardware Failures and Systematic

Failures (route 2H)

• As an unvoted item (i.e. hardware fault tolerance

of 0) at SIL 2

The product was assessed against failure modes:

• Failure to close a contact when the call point is

struck with specified force

• Failure to open a contact when the call point is

struck with specified force

• Spurious output despite no input

Integrity in respect of failure to

SIL 2

Total Failure rate 0.133 pmh

“hazardous” failure rate (revealed) 0 pmh

“hazardous” failure rate

(unrevealed)

0.1 pmh

“safe” failure rate (revealed) 0.033 pmh

“safe” failure rate (unrevealed) 0

Diagnostic Coverage 99%

System type A

Hardware Fault Tolerance 0

Safe Failure Fraction >99%

PFD (hazardous failure) 1.25 x 10-3

Proof Test Interval Up to 1 year

European Safety Systems Ltd. Impress House, Mansell Road, Acton, Londres W3 7QH www.e2s.com Tel: +44 (0)208 743 8880

Nº do Documento D150-00-001-IS-IEx_Emissão_3 - 15/06/2022 - Folha 1 de 7

Nº: IEx 10.0011X

INSTRUÇÕES

Acionador Manual de Alarme Quebra Vidro

BExCP3A-BG, BExCP3B-BG, BExCP3C-BG, BExCP3D-BG, BExCP3E-BG

Acionador Manual de Alarme com Botão Pulsador de Rearme Manual Rotativo

BExCP3A-PB, BExCP3B-PB, BExCP3C-PB, BExCP3D-PB, BExCP3E-PB

Acionador Manual de Alarme com Botão Pulsador de Rearme Rotativo por Chave

BExCP3A-PT, BExCP3B-PT, BExCP3C-PT, BExCP3D-PT, BExCP3E-PT

Certificado Sira 09ATEX3286X e Certificado IECEx SIR 09.0121X

O seguinte texto será reproduzido sem alteração no manual de instruções dos produtos acima e um

manual de instruções acompanhará cada produto ou lote de produtos.

1 A marca da certificação é a seguinte:

(Tensão nominal 24V mostrada; consulte as observações para obter informações sobre as alterações