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RTA421
Limit switch

Contactor with loop power supply for monitoring current or voltage signals

  • Limit switch RTA421 ©Endress+Hauser

The RTA421 contactor monitors industrial processes for safe operation. The unit analyzes current (0/4...20 mA) and voltage signals (0/2...10 V) and switches two independent output relays if the values either exceed or undercut the preset alarm set points. On the display both limit values are indicated in parallel. The bar graph informs on the connected signal at any time. Applications include pump control in the waste water industry. Level measurement in silos can be economically achieved.

Fordele

  • 2 relays for set point monitoring (with SPDT contacts)

  • Loop power supply for connected sensors

  • LC display for alarm set points and bar graph

  • Compact housing

  • Front end setup using 3 push buttons

  • DIN rail mounting, 45 mm housing width

Anvendelsesområde

  • Plant and machine construction

  • Panel builders

  • Process monitoring

  • Process control

Funktioner og specifikationer

Dokumenter/Vejledninger/Software

Tilbehør / Reservedele

Forgænger / Afløser

Forgænger: HTA182, HTA380, HTA423, XT170

Kontakt

Endress+Hauser A/S
Poppelgårdvej 10-12 2860 Søborg , Danmark
Tlf.: +45 70 131 132
Fax: +45 70 132 133
Send e-mail www.dk.endress.com
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