Instruction manual
OCM Pro CF
®
OCM Pro CF - Rev. 09 as of 07.06.2016
page 31
The wall mount enclosure has cable glands and dummy plugs. Some of them
are screwed in or are enclosed as spare parts or additional parts. Number and
size of cable glands and dummy plugs depend on the type of transmitter.
Transmitter type S4:
2 glands M20 x 1.5
1 gland M16 x 1.5
2 dummy plugs M20 x 1.5
2 dummy plugs M16 x 1.5
Transmitter type M4:
2 glands M20 x 1.5
3 glands M16 x 1.5
2 dummy plugs M20 x 1.5
2 dummy plugs M16 x 1.5
Transmitter type R4:
2 glands M20 x 1,5
3 glands M16 x 1,5
2 dummy plugs M20 x 1,5
2 dummy plugs M16 x 1,5
With the supplied glands the following outer cable cross-sections can be con-
nected reliably:
M16 x 1.5: 3.5 mm – 10.5 mm (0.138 – 0.413 in)
M20 x 1.5: 6.0 mm – 14.0 mm (0.236 – 0.591 in)
To be able to use cable diameters outside of the tolerance, glands must be used
which ensure IP65 minimum protection.
Unused lead-ins have to be locked tightly with an appropriate dummy plug be-
fore the initial start-up.
The transmitter is equipped with terminal clamps which ensure reliable connec-
tion of single and multi-wired cables with cross-sectional areas of 0.18-2.5 mm²
(0.007 – 0.098 in) in order to connect power supply as well as digital / analog
outputs and inputs.
The sensors (flow velocity, combi, air-ultrasonic or 2-wire level sensors) are
equipped with connection plugs due to better handling of the wall mount enclo-
sure. The pre-configured cable tips of the NIVUS sensors or single and multi-
wired cables with cross-sectional areas of 0.18-2.5 mm² (0.007-0.098 in) can be
connected to these plugs.
The 7-pole plug-and-socket connections of the 3 flow velocity sensors can be
switched with each other. Switching between 7-pole and 9-pole plug rail
(9 poles = level sensors) is impossible due to mechanical configuration.
For terminal clamp connection it is necessary to use a slotted screwdriver with a
3.0 mm or 3.5 mm (0.118-0.138 in) blade. In order to connect the sensors to the
terminal strips of the wall mount enclosure use a slotted screwdriver with a 2.0
mm or 2.5 mm (0.079-0.098 in) blade.
