Instruction manual
OCM Pro CF
page 30
OCM Pro CF - Rev. 09 as of 07.06.2016
®
7.2 Electrical Installation
For electric installation the local regulations in the respective countries
(e.g. VDE 0100 in Germany) must be referred to.
Before feeding the rated voltage the transmitter and sensor installation must be
correctly completed. The installation shall be carried out by qualified personnel
only. Legal standards, provisions and technical regulations need to be observed.
CAUTION
Secure your plant sections
The OCM Pro CF power supply must be separately protected by a 6 A slow-
blow fuse and has to be isolated from other facility parts (separate turn-off,
e.g. by using an automatic cut-out with >B< characteristics).
Before feeding the rated voltage the transmitter and sensor installation must be
correctly completed. Check the installation for correctness.
Observe that installation shall be carried out exclusively by expert personnel.
Take further statutory standards, regulations and technical rulings into account.
All outer circuits, wires and lines connected to the device must have a minimum
isolation resistance of 250 V. If the voltage exceeds 42 V DC an isolation re-
sistance with 500 kOhm min. will be required.
The cross-sectional dimension of the power supply wires must be 0.75 mm2
(0.03 in2) and must be in accordance to IEC 227 or IEC 245. The maximum al-
lowed switching voltage on the relay contacts must not exceed 250 V and not
undershoot 10 mA.
According to Ex protection it must be checked if the devices power supplies
must be integrated into the facility’s emergency shutdown conception.
7.2.1 Connection of Transmitter in Wall Mount Enclosure
General
-
The OCM Pro transmitter is available in 3 different versions:
-
standard version type >S4<
-
Type >M4< with extended connections for up to 3 flow velocity sensors, digi-
tal inputs as well as additional analog inputs / outputs plus controller func-
tion.
-
Type >R4< featuring extended options to connect a Type OFR radar sensor.
All three models have the same clamp terminal marking. The transmitters M4
and R4 merely have additional connecting options which have not been
equipped in type S4.
Important Note
The terminal clamp wiring of wall mount and panel mount enclosure signifi-
cantly vary from each other. The wiring diagram of the wall mount enclosure
cannot be used for the wiring of a panel mount enclosure! The same applies in
reverse.
