RTA421
Limit switch
Contactor with loop power supply for monitoring current or voltage signals
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©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.
Voordelen
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
Toepassingsgebied
Plant and machine construction
Panel builders
Process monitoring
Process control
Kenmerken en specificaties
Documenten/handleidingen/software
Accessoires/Spare parts
Voorganger / Opvolger
Voorganger: HTA182, HTA380, HTA423, XT170