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ETMA 1 / 2

Product catalog summary

Overview: The document provides technical specifications for the ETMA series of magnetic incremental linear sensors by Eltra S.p.a. These sensors are designed for harsh environments and are used in applications such as marble and glass working machines.

Main Features:

Non-contact technology ensures no wear and tear.
Maximum resolution of 0.01 mm after quadrature evaluation.
Power supply options up to +28 VDC with various electronic interfaces.
Capable of handling travel speeds up to 4 m/s.
IP 67 protection grade, suitable for harsh environments.

Ordering Code: The ordering code for the sensors includes series, resolution, zero pulse, power supply, electronic interface, enclosure rating, output type, and variant options.

Electrical Specifications:

Resolution: ETMA1 offers 0.1 mm (0.025 mm after quad eval), ETMA2 offers 0.04 mm (0.01 mm after quad eval).
Zero pulse: ETMA1 every 5 mm, ETMA2 every 2 mm.
Power supply options: 4.5-5.5 V DC, 4.75-29.4 V DC, 7.6-25.2 V DC with reverse polarity protection.
Current consumption without load is 30 mA max, with a max load current of 20 mA per channel.
Output types include push-pull and line driver HTL/RS-422.
Linearity error: ±0.025 mm for ETMA1, ±0.01 mm for ETMA2.
Electromagnetic compatibility: IEC 61000-6-2, IEC 61000-6-4.

Mechanical Specifications:

Enclosure rating: IP 67 (IEC 60529).
Shock resistance: 50 G, 11 ms (IEC 60068-2-27).
Vibration resistance: 20 G, 10-2000 Hz (IEC 60068-2-6).
Housing material: Anodized aluminum.
Operating temperature: -10°C to +60°C (+14°F to +140°F).
Storage temperature: -25°C to +70°C (-13°F to +158°F).
Working distance from magnetic tape varies based on model and protection.
Weight: 150 g (5.29 oz).

Connections: The document details the cable output connections for push-pull and line driver configurations, including color coding for each function.

Catalog excerpts

ETMA 1 / 2MAGNETIC INCREMENTAL LINEAR SENSOR MAIN FEATURES Incremental linear system based on magnetic principle without wear thanks to no-contact technology. Thanks to high IP rating ETMA is suitable for harsh environment applications such as marble and glass working machines, washing systems machines. • 0,01 mm max resolution (after quad eval) • Power supply up to +28 VDC with several electronic interfaces available • Up to 4 m/s travel speed • IP 67 as protection grade • Cable output, connector available on cable end SERIES magnetic incremental linear sensor ETMA RESOLUTION 0,1 mm 1 0,04 mm 2 ZERO PULSE without zero pulse S with zero pulse Z POWER SUPPLY (with L electronic interface) 5 V DC 5 (with L or PC electronic interface) 8 ... 24 V DC 8/24 5 ... 28 V DC 5/28 ELECTRONIC INTERFACE push-pull P (AEIC-7272) protected push-pull PC line driver L power supply 5/28 V - output RS-422 RS ENCLOSURE RATING IP 67 S OUTPUT TYPE cable length 3 m PR3 preferred cable lenght 3 / 6 / 10 / 20 m, others on request 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 184

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Mechanical tolerances A ± 1 mm ELECTRICAL SPECIFICATIONS dimensions in mm © 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 185

Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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