RMS621
Wiring
Hauser
15
4.2.1
Power supply connection
"
Caution!
• Before wiring the device, ensure that the supply voltage corresponds to the specification on the
nameplate.
• For the 90 to 250 V AC version (mains connection), a switch marked as a separator, as well as an
overvoltage organ (rated current
≤
10 A), must be fitted in the supply line near the device (easy
to reach).
Fig. 7:
Power supply connection
4.2.2
Connecting external sensors
!
Note!
Active and passive sensors with analog, PFM or pulse signal and RTD sensors can be attached to the
device.
Depending on the type of signal of the sensor in question, the terminals can be freely selected which
means the Energy Manager can be used with great flexibility. This means that the terminals are not
fixed to the sensor type, e.g. flow sensor-terminal 11, pressure sensor-terminal 12 etc. If the device
is used as a heat counter in accordance with EN 1434, the connection regulations mentioned there
apply.
Active sensors
Connection method for an active sensor (i.e. external power supply).
Fig. 8:
Connecting an active sensor, e.g. to input 1 (Slot A I).
Item 1: pulse signal
Item 2: PFM signal
Item 3: 2-wire transmitter (4 to 20 mA)
Item 4: active sensor connection, e.g. optional Universal extension card in slot B (slot B I,
→
Fig. 13)
