One new magnetic sensor MSK320SKF from SIKO is an Atmosphères Explosibles or ATEX incremental encoder for use in applications located in hazardous areas.
Some applications — including those in oil and gas and chemical processing — need sensors that are ATEX-certified … especially where explosions are a concern.
The sensor’s resilience makes it versatile. In continuous use, SIKO sensor technology is cost-effective; because the MSK320SKF is durable, maintenance and replacement costs are minimized.
The MSK320SKF sensor operates as an open system, linear or rotary, wear-free and low-maintenance. Myriad MB320/1-type magnetic bands and MR320/MBR320-type magnetic rings are available for adapting to various shaft diameters.
The variety of available magnetic rings of varying diameters and pole numbers means flexibility and allows its use in many machine designs. What’s more, SIKO also lets engineers get samples for testing.
The encoder has a digital interface; a high scaling factor of less than or equal to 64; a pole length of 3.2 mm; and speed-proportional signal output.
Reading distance is less than or equal to 2 mm. The encoder works with MB320/1 magnetic tape, an MR320 magnetic ring, or an MBR320 magnetic tape ring. There’s also an ATEX version with a TPS 13 ATEX 47828 001 X EC type-examination certificate.
Note that the MSK320SKF works in Zone 1 and 2 (high and normal safety) areas but requires a protective barrier. Circumferential speed reaches 40 m/sec; travel speed reaches 40 m/sec; the failure rate is 395.2 years at 60 °C (MTBF).
Other MSK320SKF specifications:
Ambient temperature: -40 to 120 °C
Storage temperature: -40 to 120 °C
Withstands relative humidity to 100% and even condensation
EMC: IEC 61000-6-3(ed.2); am1, IEC 61000-6-2(ed.2.0), EN 61000-6-3:07 + A1:11, EN 61000-6-2:05
Insulation strength: 500 Vac
EN 60439-1 Protection category: IP67 EN 60529
Shock resistance: EN 61373 class 2 Vibration resistance EN 61373 class 2