NBK-M
7.4. Magnetostrictive Pick-up with 4-wire Transmitter (option ..T..)
Ensure that the electrical supply lines are de-energized.
•
•
•
•
To avoid faults caused by electrical fields from other circuits, the cables should
not be laid in conduits with power cables.
Unscrew cover and pull the supply lines through the cable gland.
Connect the transmitter according to the terminal connection diagram below.
GND
+Us
AGND
AOUT
+
-
4-20 mA
24 V DC
+
-
8. Startup
Fill vessel, and switch on the electrical controller, if present.
The entering liquid lifts up the float and thus the coupled magnet actuator. The
roller indicator indicates the liquid level.
Commissioning of electrical reed switches
Function of switches
All switches have three connection poles (black (2), blue (3) and brown (1)).
The black wire (2) is the common pole for both switching functions
(N/C and N/O contact).
black (2) / blue (1)
black (2) / brown (3)
float above
closed
open
float below
open
closed
brown
black
blue
With cable connection
NBK-M_manual_3-5-04.doc
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