Electrical Connection - RECHNER SENSORS i-LEVEL Bedienungsanleitung

Mounting
It is mandatory to have a galvanic connection between the sensor head and an earthed container (or ad-
ditional electrode)! With metal containers the BE-connection (function earth) is normally made through the
threading of the sensor to the metal container. With non-metal containers the connection to the BE electrode
is made by means of a cable via an M3 threaded hole at the rear of the sensor.
1/4 D
IBS
M
IB1

Electrical Connection

20
IB1 = Non-active range 1
M = Measuring range
IBS =Non-active range shield
BE
The measuring range must not be mounted in the area of the container
where there is a change in the cross section; for example the cone.
The probe can be mounted in the centre of the container or just off
to one side. For a measurement to be independent of the filling cone,
we recommend that the probe be mounted at ¼ of the diameter. The
minimum distance between the end of the measuring range and the
container's lid is 50 mm.
Connect the BE (function earth) through the process connection or
by means of the rear screw connection.
Electrical connection:
• Disconnect the system from all power
• Connect the probe according to the connection diagram
• Switch power on
• The sensor automatically detects during starting for each
switching output individually, if the switching output is con-
nected to a "-" (=PNP) or "+" (=NPN) load.
Load resistor is ≤ 20 k Ohm for the digital outputs S MIN
and S MAX.
2
3
Pin connection
Pin 1: +24 V
1
Pin 2: SWITCH MAX
5
Pin 3: GND
4
Pin 4: SWITCH MIN
Pin 5: ANALOGUE OUT