Contents
zenitel EAPFX-1-V2 Exigo Ex Access Panels Turbine Ex Intercoms
Product Information
About this Document
The document provides installation and maintenance procedures for the Exigo Ex Access Panels Turbine Ex Intercoms. It includesinformation on the scope, revision history, and certificates.
The Ex Products
The Exigo Ex Access Panels Turbine Ex Intercoms are part of the Ex range of products. These products are designed for use in hazardous environments where there is a risk of explosion.
System Design Overview
The system design overview provides information on the Ex protection strategy, marking, specific conditions of use, connection to central equipment, electrical connections, connectionof audio accessories, earthing, cable insertion, electrical parameters, terminals, and connectors.
Maintenance Service
The maintenance service section covers general maintenance procedures for the Exigo Ex Access Panels Turbine Ex Intercoms. Itincludes information on watertight enclosure, wires, repair/overhaul/modifications, and end of life and the WEEE directive.
Product Usage Instructions
- Ensure that you have read and understood the entire document before proceeding with installation or maintenance.
- Familiarize yourself with the Ex protection strategy and specific conditions of use to ensure safe installation and operation in hazardous environments.
- Follow the provided marking guidelines to identify and label the Exigo Ex Access Panels Turbine Ex Intercoms correctly.
- Make appropriate electrical connections according to the system design overview. Ensure proper grounding and cable insertion.
- If using audio accessories, refer to the instructions for connecting them to the intercoms.
- Regularly perform general maintenance procedures outlined in the document to ensure optimal performance of the intercoms.
- If any issues arise, follow the repair/overhaul/modification procedures as necessary. Dispose of the product according to the end-of-life guidelines and the WEEE directive.
About this Document
Scope
This document describes the installation and maintenance procedures for the Exigo EAPFX Ex Access Panels and Turbine TFIX Ex Intercom Stations, henceforth commonly referred to as “Ex Products”, and their intended audio accessories. The following models are covered by this manual:
| Item Number | Item Name | Product Description |
| Exigo Ex PA Access Panels | ||
| 1023221611 | EAPFX-1-V2 | Exigo Ex Access Panel, 1 button, Flowire |
| 1023221616 | EAPFX-6-V2 | Exigo Ex Access Panel, 6 buttons, Flowire |
| Turbine Ex Intercom Stations | ||
| 1008123110 | TFIX-1-V2 | Turbine Ex Intercom Station, Full Keypad |
| 1008123120 | TFIX-2-V2 | Turbine Ex Intercom Station, 6 buttons |
| 1008123130 | TFIX-3-V2 | Turbine Ex Intercom Station, 3 buttons |
| Ex Accessories | ||
| AK5850HS | AK5850HS | Ex-Approved Headset with plug |
| 1008150025 | TAX-2B | Ex-Approved Plugbox & Cable for AK5850HS Headset with PTT Button |
| 1008150030 | TAX-3 | Ex-Approved Handset with PTT, unterminated |
| 1023533511 | EMMAX-1H | Exigo Handheld Industrial Ex Microphone, 1 Button, IP66 |
Revision History
| Rev. | Date | Prepared by | Comments | Approved by Ex responsible |
| 1.0 | 13.1.2022 | Hon Khiam Leong | V2 Turbine-Exigo, FCDC3 | Erik Bjørkander |
Certificates
| ATEX Certificate number | DNV 21 ATEX 04699X |
| IECEx Certificate number | IECEX DNV 21.0097X |
| Certificates can be downloaded from www.zenitel.com | |
The Ex Products
The Ex Products are approved according to IECEx and ATEX regulations, and bear the marking: II 2(2)G Ex eb ib mb (ib) IIC T4 Gb (See section 3.1.1 Marking for detailed information).
The following models and audio accessories are approved for use in hazardous areas:
Access Panels
Intercoms
Audio Accessories
System Design Overview
Ex Protection Strategy
Conductors of the intrinsically safe audio accessories and GPI push buttons shall not be carried in the same cable or cable gland as conductors of the non-intrinsically safe power supply, relay and external speaker.
Marking
The Ex Products have the following marking: II 2(2)G Ex eb ib mb [ib] IIC T4 Gb
Specific Conditions of Use
- The Ex Products and associated cable glands are tested for low risk of mechanical hazard and shall be protected against higher impact energy levels if used.
- The cable glands shall be mounted according to the manufacturer’s instructions, and additional clamping of the cable may be needed.
- Other certified cable glands than supplied with the product may be mounted and used according to the manufacturer’s instructions.
Connection to Central Equipment
The Ex Products are connected to the central equipment rack using shielded 2-wire twisted pair cable. A Zenitel proprietary protocol, Flowire, is used to extend the Ethernet connection and support power distribution on the 2-wire cabling infrastructure. To support the Flowire interface, the central equipment rack must be equipped with a Flowire Converter (FCDC3).
Network Configuration – Cabling in Ex Zone
Electrical Connections
All electrical connections are made on the main board inside the housing. See section 4.2 Mounting for instructions on opening and closing the housing
Ex i terminals:
|
J13 |
1 | Internal Mic + |
| 2 | Internal Mic – | |
| 3 | Signal GND | |
|
J6 |
4 | Audio Accessory Speaker + |
| 5 | Audio Accessory Speaker – | |
| 6 | Audio Accessory Microphone Mic + | |
|
J7 |
7 | Audio Accessory Microphone Mic – |
| 8 | Audio Accessory Push-To-Talk (PTT) | |
| 9 | Audio Accessory Hook | |
|
J9 |
10 | Audio Accessory GND PTT/Hook |
| 11 | Internal Loudspeaker + | |
| 12 | Internal Loudspeaker – | |
|
J22 |
13 | GPI1 External Push Button |
| 14 | GND External Push Button | |
|
J23 |
15 | GPI2 External Push Button |
| 16 | GND External Push Button |
Ex e terminals:
|
J20 |
17 | External Loudspeaker + |
| 18 | External Loudspeaker – | |
| 19 | Signal GND | |
|
J21 |
20 | Relay COM |
| 21 | Relay NO | |
|
J8 |
22 | Flowire PLC1 + |
| 23 | Flowire PLC1 – | |
|
J10 |
24 | Flowire PLC2 + |
| 25 | Flowire PLC2 – |
Connection of Audio Accessories
Connection of Handheld Microphone EMMAX-1H
Connection of Headset AK5850HS and Plugbox TAX-2B
Connection of Handset TAX-3
Connection of Flowire in a Single System
Earthing
The ground sheet inside the main housing must be earthed according to IEC 60079-14.
Cable Insertion
Only use cables complying with EN/IEC 60079-14.
Only Ex certified cable entries shall be used. The relevant mounting directives for the cable entries used shall be observed. Cable entries must have ingress protection IP54 or higher.
When using cable entries with an ambient temperature range that differs from the ambient temperature range of the panel or intercom, the limiting temperature range shall be adhered to.
Electrical Parameters
Electrical Data
Intercoms and Access Panels:
The apparatus shall be supplied with Safety Extra-Low Voltage (SELV) power supply of 24-48 VDC, 2A.
Intrinsically Safe Connections for External Audio Accessories
| Loudspeaker | Microphone | PTT | HOOK | |
| Terminal | 4 & 5 | 6 & 7 | 8 | 9 |
| Maximum output voltage, Uo | 5.8V | 5.8V | 5.8V | 5.8V |
| Maximum output current, Io | 952mA | 952mA | 952mA | 952mA |
| Maximum output power, Po | 1.008W | 1.008W | 1.008W | 1.008W |
| Maximum external capacitance, | 597nF | 597nF | 597nF | 597nF |
| Maximum external inductance, Lo | 40uH | 40uH | 40uH | 40uH |
The parameters above are a combination of all outputs connected together that can occur if separation distances in external accessories are below the limits in EN 60079-11:2012.
- Only Ex-certified audio accessories which comply with the input and output values shown in the table above may be used with the Ex Products.
- Conductors of the intrinsically safe audio accessories shall not be carried in the same cable or cable gland as conductors of the non-intrinsically safe power supply, relay and external speaker.
- Conductors of the intrinsically safe audio accessories shall be separated from conductors of the intrinsically safe GPI circuits by at least 0.5 mm through solid insulation.
The following Zenitel accessories comply with the input and output values stipulated above, and are approved for use with the Ex Products:
| Ex audio accessories | ||
| 2330040026 | AK5850HS | Ex-Approved Headset with plug |
| 1008150025 | TAX-2B | Ex Approved Cable for Headset with PTT Button |
| 1008150030 | TAX-3 | Ex-Approved Handset with PTT, unterminated |
| 1023533511 | EMMAX-1H | Exigo Handheld Industrial Ex Microphone, 1 Button, IP66 |
Intrinsically Safe Connections for External Push Buttons
| GPI1 | GPI2 | |
| Terminal | 13 | 15 |
| Maximum output voltage, Uo | 4.6V | 4.6V |
| Maximum output current, Io | 21.2mA | 21.2mA |
| Maximum output power, Po | 24.3mW | 24.3mW |
| Maximum external capacitance, Co | 50uF | 50uF |
| Maximum external inductance, Lo | 100mH | 100mH |
The parameters above are a combination of all outputs connected together that can occur if separation distances in external accessories are below the limits in EN 60079-11:2012.
- Only Ex-certified accessories that comply with the input and output values shown in the table above may be used with the Ex Products.
- Conductors of the intrinsically safe GPI circuits shall not be carried in the same cable or cable gland as conductors of the non-intrinsically safe power supply, relay and external loudspeaker.
- Conductors of the intrinsically safe GPI circuits shall be separated from conductors of the intrinsically safe audio accessories by at least 0.5 mm through solid insulation.
External Loudspeaker
| Impedance | Minimum rated power |
| 8 Ohm | 25 W |
| 20 Ohm | 10 W |
- Only Ex-certified loudspeakers which comply with the minimum power ratings listed above may be used
- Maximum load of external loudspeaker: 25 W for maximum 30 minutes
- Maximum average load of external loudspeaker in service: 4 W
Relay Output to External Signaling Device
24-48 VDC SELV, max 320mA
Debug Connector
Debug connector, J17, for use in safe area only.
Terminals and Connectors
| Hole diameter | 1.3 mm |
| Screw thread | M3 |
| Tightening torque, min. | 0.5 Nm |
| Tightening torque, max. | 0.6 Nm |
| Conductor cross section solid, min. | 0.2 mm² |
| Conductor cross section solid, max. | 4 mm² |
| Conductor cross section stranded, min. | 0.2 mm² |
| Conductor cross section stranded, max. | 2.5 mm² |
| Conductor cross section stranded, with ferrule without plastic sleeve, min. | 0.25 mm² |
| Conductor cross section stranded, with ferrule without plastic sleeve, max. | 1.5 mm² |
| Conductor cross section stranded, with ferrule with plastic sleeve, min. | 0.25 mm² |
| Conductor cross section stranded, with ferrule with plastic sleeve, max. | 2.5 mm² |
| Conductor cross section AWG/kcmil, min. | 24 |
| Conductor cross section AWG/kcmil, max. | 12 |
| 2 conductors with same cross section, solid, min. | 0.2 mm² |
| 2 conductors with same cross section, solid, max. | 1.5 mm² |
| 2 conductors with same cross section, stranded, min. | 0.2 mm² |
| 2 conductors with same cross section, stranded, max. | 1.5 mm² |
| 2 conductors with same cross section, stranded, ferrules without plastic sleeve, min. | 0.25 mm² |
| 2 conductors with same cross section, stranded, ferrules without plastic sleeve, max. | 0.75 mm² |
| 2 conductors with same cross section, stranded, TWIN ferrules with plastic sleeve, min. | 0.5 mm² |
| 2 conductors with same cross section, stranded, TWIN ferrules with plastic sleeve, max. | 1.5 mm² |
Maintenance Service
General
The valid national regulations for the servicing/maintenance of electrical apparatus for use in potentially explosive atmospheres shall be observed.
Prior to opening the enclosure, it is necessary to ensure that the voltage supply has been isolated or to take suitable protective measures.
The necessary intervals between servicing depend on the specific application and shall be stipulated by the operator according to the respective operating conditions.
During servicing, explosion protection dependent parts shall be tested to ensure their correct state, such as in the following sections.
Watertight Enclosure
- Visual inspection to look for cracks or damages on the enclosure.
- Visual inspection of the screw inserts for the 12 screws connecting the front frame to the on-wall box. If any of these have moved out of their original positions, the integrity of the enclosure is jeopardized.
- Inspect all seals, gaskets and cable entries for efficiency and intactness.
- If water has entered the Ex unit, contact your supplier immediately and do not apply voltage to the unit until it has been inspected and/or replaced by a specialist.
Wires
- Inspect termination points for loose wires.
- Inspect wire isolation and jackets for cracks and signs of ageing.
Repair / Overhaul / Modifications
- Only original Zenitel parts shall be used for carrying out repairs that concern explosion protection.
In the event of damage to the enclosures, replacement of these components is mandatory. Contact Zenitel for guidance.
Reconstruction or modifications to the unit is only possible within the scope of the approvals and shall be certified afterwards.
End of Life and the WEEE directive
- The WEEE Directive does not legislate that Zenitel, as a ‘producer’, shall collect ‘end of life’ WEEE.
This ‘end of life’ WEEE should be recycled appropriately by the owner who should use proper treatment and recycling measures. It should not be disposed to landfill.
Many electrical items that we throw away can be repaired or recycled. Recycling items helps to save our natural finite resources and also reduces the environmental and health risks associated with sending electrical goods to landfill.
Under the WEEE Regulations, all new electrical goods should now be marked with the crossed-out wheeled bin symbol shown.
Goods are marked with this symbol to show that they were produced after 13th August 2005 and should be disposed of separately from normal household waste so that they can be recycled.
Zenitel and its subsidiaries assume no responsibility for any errors that may appear in this publication, or for damages arising from the information therein. Zenitel products are developed and marketed by Zenitel. The company’s Quality Assurance System is certified to meet the requirements in NS-EN ISO 9001. Zenitel reserves the right to modify designs and alter specifications without notice. ZENITEL PROPRIETARY. This document and its supplementing elements contain Zenitel or third-party information which is proprietary and confidential. Any disclosure, copying, distribution or use is prohibited, if not otherwise explicitly agreed in writing with Zenitel. Any authorized reproduction, in part or in whole, must include this legend: Zenitel – All rights reserved.