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Eltra S.p.a.
EAX 80 A / D SSI

EAX 80 A / D SSI

Product catalog summary

Main Features
The EAX 80 A/D is an explosion-proof single-turn absolute encoder designed for use in hazardous areas. It utilizes optical sensor technology (OptoASIC) and offers a resolution of up to 13 bits (8192 ppr). The encoder operates with a power supply of up to +28 V DC and uses an SSI electronic interface. It features a 10mm solid shaft diameter and cable output, with mounting options via synchronous or centering square flange.

Ordering Code
The ordering code for the EAX 80 series includes specifications for the model, resolution, code type, power supply, electronic interface, shaft diameter, enclosure rating, maximum rotation speed, output type, and any custom variants.

Ex Classification
The encoder is certified for use in explosive atmospheres, complying with standards EN 60079-0:2012+A11:2013, EN 60079-1:2007, and EN 60079-31:2014. It is marked with ATEX classification II 2GD, indicating its suitability for environments with gas and dust.

Electrical Specifications
The encoder supports resolutions from 2 to 8192 ppr and operates with a power supply range of 7.6 to 29.4 V DC. It has a current consumption of 100 mA without load and uses an RS-422 output type. The clock frequency ranges from 100 kHz to 1 MHz, with a start-up time of 150 ms.

Mechanical Specifications
The encoder features a 10 mm shaft diameter, an IP 65 enclosure rating, and a maximum rotation speed of 3000 rpm. It can withstand axial/radial shaft loads up to 200 N and is designed to endure shocks of 50 G and vibrations of 10 G. The body and housing are made of anodized aluminum, while the shaft is stainless steel.

Connections
The encoder's cable output includes connections for power, data, clock, and reset functions, with specific color coding for each wire.

Environmental and Safety Considerations
The encoder is designed for high protection levels in explosive atmospheres, with a maximum surface temperature of +85°C. It is suitable for environments with gases, vapors, mists, and dust, providing a high level of safety and reliability.

Catalog excerpts

EAX 80 A / D SSI EXPLOSION PROOF ATEX SINGLETURN ABSOLUTE ENCODER MAIN FEATURES Explosion proof encoder for applications within explosive and hazardous areas. • Optical sensor technology (OptoASIC) • Resolution up to 13 bit (8192 ppr) • Power supply up +28 V DC with SSI as electronic interface • Code reset for easy setup • 10mm solid shaft diameter • Cable output • Mounting by syncronous or centering square flange EX CLASSIFICATION It has been assured with EC-TYPE Examination Certifcate CESI 04 ATEX 082 that the EAX 80 comply with essential health and safety requirements according to • EN 60079-0:2012+A11:2013 • EN 60079-1:2007 • EN 60079-31:2014 Declaration of conformity and CE declaration are available for download from Eltra website www.eltra.it SERIES singleturn absolute flameproof encoder EAX MODEL synchronous flange 0 40 mm 80A centering square flange 0 40 mm 80D RESOLUTION (powers of 2) ppr from 2 to 8192 (multiples and submultiples of 360) ppr from 90 to 3600 (multiples and submultiples of 1000) ppr from 250 to 4000 CODE TYPE binary B gray G (no powers of 2) binary offset code (0-XXX) BC (no powers of 2) gray offset code (0-XXX) GC POWER SUPPLY 8 ... 28 V DC 8/28 ELECTRONIC INTERFACE Serial Synchronous Interface - SSI S LOGIC to be reported X OPTIONS to be reported if not used X reset ZE SHAFT DIAMETER mm 10 ENCLOSURE RATING IP 65 X MAX ROTATION SPEED 3000 rpm 3 OUTPUT TYPE radial cable (standard length 1,5 m) PR VARIANT custom version XXX © Copyright 2016 Eltra S.p.a. Unipersonale. All rights reserved. All informations in this catalog are subject to change without notice. Eltra takes no responsibility for typographic errors. For the terms of sales please check the website. REV. 160607 119

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II 2GD Ex d llC T6 Gb Ex tb IIIC T85°C Db IP 65 II 2GD II:group II: different than mines 2-category 2: high level of protection GD :areas containing gas (G) and dust (D) Ex d llC T6 Gb Ex d:flameproof enclosure for explosive atmospheres with gases, vapours and mists IIC :group of gas IIC T6: max surface temperature +85°C of the device for atmospheres with gas Gb:product with a high level of protection Ex tb IIIC T85°C Db © Copyright 2016 Eltra S.p.a. Unipersonale. All rights reserved. All informations in this catalog are subject to change without notice. Eltra takes no responsibility for typographic...

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