KEM ECO Series - Analog Configurations; Fig 3: 4-20 Ma Analog Output and NPN Output with Scaled Frequency

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Operation
Version: ECO_M_ENG_220303_E002
5.2.2. Analog configurations
In addition to the frequency/pulse information, analog configurations offer the option of outputting a further
analog output variable. The flow rate or the medium temperature is available as the reference variable for this
analog information. The analog outputs also have the option of signaling an error.
5.2.2.1. 4-20 mA Passive + Frequency/Pulse (NPN) – ECO XX-AN-XX-X
A passive 4-20 mA current loop is also available here, via which the device is also supplied with power (two-wire
operation). Here too, the frequency range of the digital outputs maps the 1:1 frequency of the calibrated flow
meter. Customer-specific parameterizations for scaled frequencies up to max. 5000 Hz or customer-specific K-
factors can also be selected.
Fig 3: 4-20 mA analog output and NPN output with scaled frequency