Explosion-proof telephone - Cooper MEDC

1 Explosion-proof telephone Operating instructionsFHFBA 9701-2208/112 ForewordOur Explosion-proof , weather-resistant telephone is a captivatingproduct on account of its precision, convenience, long service life andreliability. It is freely programmable and the optimum choice for adverseambient conditions. Be it seawater, high atmospheric humidity, dust orthe toughest mechanical strains, the weather-resistant telephoneaccomplishes its aim in any conditions. The reason for this is the robustkeypad made of V4A steel and an extremely solid housing made ofimpact-resistant and shockproof cast-moulding material. All of thecomponents utilised are even resistant to leeches and lubricants. The21-component V4A-steel keypad - which can be operated by a userwearing gloves - and the easily readable alphanumeric display as wellas the uncomplicated menus all ensure simple operation - thus fulfillingthe requirements for a leading-edge and operationally reliable means ofcommunication. As a telephone suitable for connecting to the publictelephone network and to private automatic branch exchanges, theExResistTel always ensures reliable ZB is designed for telephone exchange operation andcorresponds to the ExResistTel, except for keypad and of contentsGeneral operating 4 Overview of the 5 Display and 8 Contents after 9ZB version 9 explosion protection device description.

2 10 explosion protection device 11 explosion protection characteristic data .. 14 explosion protection 15 Assembly and 16 Connection 17 Sling 18 Drilling 19 Handset 19 Open 19 Hands-free 19 Working with the 21 Main 22 Submenu: telephone 23 Submenu: Change telephone 24 Submenu: Lock / 25 Submenu: 26 Submenu: 27 Default 27 Menu 28 Technical 29 Guidelines and 32 Service .. 33 Maintenance and 33 Waste 33 Warning and safety 33CE 35 Index of 36EC Declaration of 374 General operating instructions1. Both the Explosion-proof ExResistTel telephone and the ZB versionare designed for connection to dial ports with analogue The handset is fitted with a stray-field coil for connecting hearing-aids. People who use hearing-aids which have an inductive receivercan receive the earphone signal The optional, external loudspeaker has three operating modes calling/ringing, open listening and hands-free. If the externalloudspeaker is switched on, the internal loudspeaker volume will The ZB version is not equipped with keypad and display, thereforenot all the features are available with this The ExResistTel has a handset module with a dry reed contact as ahook switch.

3 In order to terminate an existing call connection, thehandset must be hung up. In order to interrupt an existing callconnection, it is sufficient to press the clearing key on thekeypad.(see page 8)6. Use the menu to program the appropriate settings. To access themenu, pick up the handset and press the "YES" If you take longer than 2 minutes before you begin making a choice,the power supply of the exchange may be switched off. If thatoccurs, you will no longer hear a dialling tone. In that case, pleasereplace the handset and wait 2 seconds before picking it up When a setting is stored successfully, this is confirmed by anacknowledgement When you receive a call, the ExResistTel rings at the ringer-volumelevel selected by you and, for the duration of the calling sound, thesymbols ( ( ( ) ) ) appears on the If you enter a PIN with the menu you can restrict or block dialfunctions. Forgetting the PIN is the equivalent of losing a key. If youforget the PIN, please contact our technical You have a guarantee period of 24 months commencing from thedate of purchase.

4 If you have a problem, please contact ourtechnical support in Germany, located in M lheim an der Ruhr: telephone : 0208 82 68 102 Fax: 0208 82 68 377e-mail: outside of Germany, please prefix the country code: telephone : +49 208 82 68 102 Fax: +49 208 82 68 3775If a fault occurs which cannot be rectified by telephone , please sendthe whole telephone along with a copy of the sales receipt to thefollowing address:FHFS upport ExResistTelGewerbeallee 15-19D-45478 M lheim an der RuhrGermanyIf, on examination of the telephone , it is discovered that a fault is notthe case, you will be charged a service of the deviceNote: In case of the ZB version, the keypad and display are replaced bya solid metal of the device Outside view of telephone lower part Inside view of telephone upper partNote: The ZB version is not equipped with a pin contact of the device Inside view of telephone lower partProtection Class II ComponentsFactory supplied with: plastic cable : The ZB model does not have a keypad connector or Class I ComponentsFactory supplied with: threaded hole or a 1/2 NPT metal adapter forconnecting armoured cables or conduit entry withscrew capSealing plugSealing plugProgramminginterface connectorKeypad ribbon cablewith connectorDisplay interfaceconnectorLower partof telephoneScrewsLoudspeakercableReedswitc h cableSealing plugSealing plugSealing plugSealing plug Metal adapterSealing plug8 Display and keyboard (except for ZB version)9 Contents after unpackingThe delivery includes:- ExResistTel telephone - Operating instructions- 2 self-adhesive lettering platesZB version notesThe ExResistTel / ZB connects depending on the features of thePABX with the PABX while lifting the handset.

5 The ExResistTel / ZBcan be called also, because the ringing circuit is built there are interfaces for operating an optional secondearpiece, an optional secondary ringer and an optional operating mode external loudspeaker is set up by bridging theterminals 9 and 10 (HSS1, HSS2). With the ZB version this is equivalentto the open listening mode. The ringer sound is also output via theexternal :The set up of the external loudspeaker reduces the volume of theinternal ringer even if the external loudspeaker is not the ZB version offers the following features: Establishing a connection by lifting up the receiver Ringing by means of integrated ringing device Connection of second earpiece Connection of secondary ringer Connection of external loudspeaker10 explosion protection device descriptionRegarding the explosion protection the ExResistTel telephone and theExResistTel telephone in ZB version are explosion protection enables the user to make and receive callswithin hazardous areas of zone 1, in presence of an explosive gas ordust ExResistTel telephone is manufactured in the following protectionclasses.

6 II 2 G Ex emb [ib] IIC T5Ex emb [ib] IIC T5II 2 D Ex tD A21 IP66 T100 C Ex tD A21 IP66 T100 C-25 C Ta +60 C-25 C Ta +60 CEx emb [ib] IIC T6II 2 G Ex emb [ib] IIC T6Ex tD A21 IP66 T80 CII 2 D Ex tD A21 IP66 T80 C -25 C Ta +40 C-25 C Ta +40 C IECEx BVS ExResistTel telephone is designed for connection with analoguetelephone non-intrinsically safe voltage of the telephone network is connectedto the terminals 13 and 14 (A, B) in increased safety. In calling/ringingmode, this voltage is switched to the terminals 15 and 16 (Bell shunt1,Bell shunt) in increased safety. The terminals 15 and 16 (Bell shunt1,Bell shunt) are intended for passive consumers, a passive external, Explosion-proof secondary , a non-intrinsically safe voltage from the analoguetelephone network is turned into: an intrinsically safe receiver circuit with terminals on the inside ofthe telephone housing, for use with the receiver, which ispermanently connected to the telephone housing, and intrinsically safe circuits with terminals within the telephone housingfor connecting an intrinsically safe headset or, optionally, anintrinsically safe second earpiece, and an intrinsically safe circuit with terminals within the telephonehousing for the connection of an intrinsically safe accessories headset, second earpiece, external loudspeaker andexternal secondary ringer are not parts of the ExResistTel telephone ,but optional protection device constructionThe unvarnished housing of the ExResistTel telephone consists of anelectrostatically conductive cast-moulding equipped with a stainlesssteel keypad.

7 The keypad front plate contains a display sealed by aviewing ZB version comprises no keypad and no display area, but a solidfront housing consists of a rectangular lower part, in which there hasbeen placed a tray for mounting the electronic parts, as well as avaulted cover with a cover and the lower part of the housing, divided by a surroundingseal only, are pressed together by four screws. The cover makes upboth the non-intrinsically safe and the intrinsically safe electricalenclosure. The electronics circuit board is situated in the tray of thelower part of the housing, completely embedded in a safe terminals in increased safety:Protruding from the compound (see connecting diagram on page 17), a4-pole increased-safety terminal row is intended for connecting the non-intrinsically safe telephone network (A, B), terminals 13 and 14, as wellfor connecting an optional, external, explosion -protected secondaryringer (Bell shunt1, Bell shunt), terminals 15 and safe terminals:Protruding from the compound (see connecting diagram on page 17), a12-pole intrinsically safe terminal row is intended for connecting thereceiver, which is permanently connected with the telephone housing,terminals 1 to 4, as well as the intrinsically safe accessories, terminals 5to terminals 7 and 8 are intended for the connection of dynamicreceiver insets, like the ones used in second earpieces and output thus can be used for connecting a second earpiece or aheadset, which means that a second earpiece and a headset cannot beconnected Dynamic receiver inset connection 12 Dynamic receiver inset connection 2 Receiver inset3 Electret-foil microphone connection (+)4 Electret-foil microphone connection (-)Receivermicrophone5 Electret-foil microphone connection (+)6 Electret-foil microphone connection (-)

8 HeadsetMicrophone, not forZB version7 Dynamic receiver inset connection 18 Dynamic receiver inset connection 2 Headset orsecond earpiece910 Jumper between the terminals 9 and 10is identified by the telephone asheadset in case of the ZB version asexternal loudspeaker or ZB version identification ofexternalloudspeaker11 Dynamic loudspeaker connection 112 Dynamic loudspeaker connection 2 ExternalloudspeakerTo connect accessories, you must replace the blind plugs screwed intothe telephone housing by Explosion-proof cable glands ( ).Before connecting intrinsically safe accessories, and if a systemcertificate for the intended connection does not exist, the constructorshould perform an evaluation of the intrinsic safety according to the PTBreport Zusammenschaltung nichtlinearer und linearer eigensichererStromkreise (Interconnection of non-linear and linear intrinsically safeelectrical circuits), PTB-ThEx-10, from November 1999 (ISBN 3-89701-440-9).The technical data for the evaluation of the intrinsic safety can be foundin the chapter explosion protection characteristic data.

9 13 Further information see EN60079-14 Electrical apparatus for explosivegas atmospheres - Part14: Electrical installations in hazardous areas and EN50281-1-1 Electrical apparatus for use in the presence ofcombustible dust . The user shall observe the standard EN50281-1-2(IEC61241-1-2) if the device operates in hazardous areas withcombustible metal bracket is supplied for hanging up the intrinsically safe secondearpiece or headset. The metal bracket should be attached to thetelephone by means of the two threaded bushes in the floor of thetelephone housing. The corresponding bores in the metal bracket canbe used to screw the bracket securely onto to the housing floor (seeoverview of the device on page 6). Thus, if the constructor wants to usethe metal bracket, the first thing he has to do, is to fix it to the housingfloor. Subsequently, the device may be mounted on the safe programming interfaceAn 8-pole, intrinsically safe contact strip (14) (see overview of the deviceon page 7) protrudes from the compound.

10 This contact strip isexclusively used by the manufacturer for programming purposes. Do notswitch any circuits by using the contact strip. The constructor may notperform any kind of safe display interfaceAn 8-pole, intrinsically safe contact strip with a soldered-on circuit board(15) (see overview of the device on page 7) protrudes from thecompound. The circuit board is equipped with a zero power plug forconnecting the intrinsically safe LC display film conductor. Connect thebuilt-in display only to this safe strand connection to the built-in loudspeakerAn intrinsically safe 2-pole strand conductor (16) (see overview of thedevice on page ) goes from the compound to the built-in strand is soldered onto the circuit board below the compound, aswell as onto the safe strand connection to the reed switchAn intrinsically safe, 2-pole strand conductor (17) goes from thecompound to a circuit board with a reed switch (see overview of thedevice on page 7). On the compound-covered circuit board the strandruns underneath the compound, and on the other circuit board it issoldered onto the reed safe keypad connectionAn intrinsically safe, 14-pole ribbon cable with plug bush (18) comes outof the compound.