Instruction manual
OCM Pro CF
®
OCM Pro CF - Rev. 09 as of 07.06.2016
page 163
No screen (black /
flickering)
Connection
Check power supply connection
Power supply
Check power supply voltage
Check switch position on connection board
Compare power supply (AC or DC) with transmitter
type.
Memory card
Unauthorised manufacturer
à
use NIVUS memory
card.
Improper memory size?
à
use card with permissible
maximum capacity
Card formatted on PC?
à
send card to NIVUS.
Display Error Sensor
>X<
Connection
Check cable connection. Wiring on terminal strip
switched? Cables firmly connected to plugs
(retighten screws, pull at cable ends)? Insulation of
single wires unintentionally clamped in?
Hint: error messages indicating sensor number 1, 2
or 3 refer to flow velocity sensor 1, 2 or 3. >Error
Sensor 4< refers to the air-ultrasonic sensor.
Communication
Communication to sensor disturbed. Can be
checked by pressing the I key. Sensors should be
indicated in the third line of the following screen.
Check cables for interruption or loose connection.
Check sensor for mechanical damage.
Messwert instabil
Messstelle hydraulisch
ungünstig
Check quality of measurement place by using the
graphic flow profile display.
Relocate the sensor to a hydraulically more suitable
place (extend calming section).
Remove soiling, sedimentation or obstructive
constructions in front of the sensor.
Straighten the flow profile by installing appropriate
baffle plates and calming elements, flow
straighteners or similar upstream of measurement.
Increase damping.
Sensor
Check sensor installation (towards flow direction,
horizontal installation).
Check sensor for sedimentation or obstructions.
