Endress+Hauser RMS 621 - Page 17

RMS 621 4 Electrical installation
Endress+Hauser 17
Flow sensors with open collector output
!
Note!
Select the relative resistance R, so that I
max.
= does not
exceed 20 mA.
Flow sensors with a passive current output
(4 to 20 mA)
Flow sensors with an active current output
(4 to 20 mA)
Flow sensors with an active current output and an pas-
sive frequency output (measurement of bi-directional
flow)
!
Note!
Select the relative resistance R, so that I
max.
= does not
exceed 20 mA.
Terminals 82/110 = Direction signal
Terminals 10/11 = Flow signal
Temperature sensor using an temperature head
transmitter (4 to 20 mA)
Pressure sensors with a passive current output
(4 to 20 mA)