Commissioning Page 7/8
4.2.2 Output Circuits
The relays K1 to K5 (terminals 3 to 17) serve as limit signal indicators. There are 5 potential-
free changeover contacts.
Special features of the UM-O and UM-O Ex versions of the device:
– Non-acknowledgeable overfill protection relays:
Relays K1 (terminals 3,4 and 5)
– Acknowledgeable overfill protection relays:
Relays K2 (terminals 6, 7 and 8)
4.2.3 Power Supply
The power supply is connected to the terminals PE, N and L of the circuit board. In the 24 VDC
version + must be connected to L and - to N.
4.2.4 External Acknowledge Button
An external acknowledge button (potential-free NO) can be used. This is connected to the
terminals “Ack.” (18 and 19).
CAUTION MAINS VOLTAGE!
5 Commissioning
The measurement evaluation unit is supplied with a factory setting (default) and must be
adapted to the local conditions.
Detailed information for the setting of the measurement evaluation unit can
be found in Section 6 „Operation“.
The values of the factory settings are listed in Section 6.14 „Menu structure
with factory setting“.
For commissioning of the system proceed as follows:
(1) Attach the measurement evaluation unit UM-X to its intended location and insert
the filling-level sensor into the container (see also Section 4).
(2) Connect at least the power supply and the sensor.
(3) During the assembly, ensure that the ribbon cables from the display and from the
membrane keyboard are correctly connected before the measurement evaluation
unit is closed.
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