The EMI 22 Magnetic Incremental Encoder Functions Fine Underwater

An Aquarium company had a problem and came to Micromech – whose engineers recommended the Eltra EMI 22 for an underwater application.  Compact dimensions and being able to operate across a wide temperature range from -25 to +125 °C were other crucial parameters.

Further important features of the EM series are: no need for physical contact between encoder and motor shaft; high resolution and precision; high working speed (max. rotation speed 10,000 rpm); excellent mechanical robustness; and very easy mounting.

Of course, most important in the case of this application was the need for a high enclosure rating of IP68 and with the body, housing and magnet-carrier material made of aluminium (D11S UNI 9002/5) a long life is assured.

The EMI 22 is very robust, withstanding shocks of 50G/11ms and vibration 10G/10 to 2000 Hz, yet resolution is incremental up to 2048 p.p.r. The current consumption without load is 100mA maximum and maximum load current is 15mA for channel.

Besides this special application the EMI series encoders are also ideal in such areas as electric motors, marine industry, iron/steel industry and textile machines. In addition they are well suited in many other tough environments including: woodworking, paper working, glass-working, marble-working machinery, automation and process control fields.

Comments

Post a Comment

Popular posts from this blog

What is Class I Division 2?

Image
A Class I Division 2 is a location: (1) In which volatile flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are handled, processed, or used, but in which the liquids, vapors, or gases will normally be confined within closed containers or closed systems from which they can escape only in case of accidental rupture or breakdown of such containers or systems or in case of abnormal operation of equipment, or (2) In which ignitable concentrations of flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are normally prevented by positive mechanical ventilation, and which might become hazardous through failure or abnormal operation of the ventilating equipment. Class I Division 2 Classification Class I Division 2 refers to the ANSI/ISA 12.12.01 standard. This standard was previously UL1604 until UL recommended the newer ANSI/ISA standard be used and that all hazardous location products be certified under this standa
Read more

FUSE SIZING CONSIDERATIONS FOR HIGHER EFFICIENCY MOTORS

Image
When selecting the proper fuse for short circuit protection in motor starting applications, it is important to not only ensure that the fuse will not nuisance open during motor start up times, but also that the fuse will coordinate as required with overload relays. When sizing fuses between 125% and 150% of the motor nameplate current, several advantages, including ease of coordination with an overload device, a smaller disconnect, and increased short circuit protection from a lower fuse rating, can be achieved. However, if sizing at this level prevents the motor from starting, it may then be necessary to increase the fuse ampere rating and it then becomes important to know the NEC sizing limitations. As of June 1, 2016, the US Department of Energy has mandated that newly manufactured electric motors will need to meet NEMA Premium® efficiency standards. As motor efficiencies increase, motor locked rotor currents can also be expected to increase. In addition to this, with across-the-lin
Read more

7/8 16UN Connectors that Provide 600 Volts and 15 Amps

TURCK announces new A-Size 3 and 4-pin 7/8 16UN powerfast™ connectors that provide up to 600 Volts and 15 Amps of power. These IP67 rated connectors provide a modular wiring system designed to handle high current applications for machine power distribution, while providing resistance to vibration commonly associated with conveyors, motors and material handling applications. The cordsets are available with a tray rated, exposed run PVC flexlife ® cable, with or without STOOW rating, and 14 AWG wires that allow you to replace hard wiring with a robust, quick disconnect system that saves the time and money spent installing a conduit system. The A-Size powerfast line offers male and female, straight connectors, standard and custom lengths, and pigtails or extensions. To make the system complete, fully encapsulated mating receptacles, with 1/2”-14 NPT mounting threads are available.
Read more