Endress+Hauser RTA421 - Function and System Design

RTA421
2 Endress+Hauser
Function and system design
Measuring system The RTA421 contactor monitors industrial processes for safe operation. The unit analyses 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.
Applications include pump control in the waste water industry, level measurement in silos can be economically
achieved.
a0016740
1Pump
2 Signal input with loop power supply
3Relays
Alarm set point function
1
2
3
Mode Minimum, Maximum
Switch threshold 00 to 99%
Hysteresis 01to 99%
Time delay 00 to 99 s
Reaction time 0.4 s