Metrohm 849 Level Control - Manual (Page 18)

3.2 Connecting the sensor ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
10 ￭￭￭￭￭￭￭￭ 849 Level Control
3.2 Connecting the sensor
The sensor is comprised of three rods in one screw cap adapter which can
be mounted on a plastic canister or on a glass bottle. Two connections for
one to two sensor cables are located in the screw cap adapter.
E
R
F
Figure 8 Wiring the sensor
R Reference
Sensor rod for the reference potential E Empty level
Sensor rod for detecting the minimum fill
level
F Full level
Sensor rod for detecting the maximum fill
level
One sensor cable has two lines and two narrow test plugs at one end.
Always connect the red plug to the connector R (= Reference, see
below). The reference connection is always linked with a long sensor rod.
E F
R E F
6.1113.000 6.1113.100/6.1113.110
Figure 9 Bottle adapter
R Reference connector
Connector for the reference line (for the red
plug) E Empty level connector
Connector for detecting the minimum fill
level (for the black plug)
F Full level connector
Connector for detecting the maximum fill
level (for the black plug)