ARI Armaturen CONA control EN - Manual (Page 33)

Rev. 0040807014 1614 Page 2-33
Operating and Installation Instructions
CONA
®
-control
8.0 Troubleshooting
In the event of a malfunction or faulty operating performance, check that all installation and
adjustment work has been carried out and completed in accordance with these Operating
Instructions.
If you cannot correct the fault with the help of the table in section "9.0 Troubleshooting
table", please consult the supplier or manufacturer.
9.0 Troubleshooting table
9.1 Fault indications on the measuring amplifier
ATTENTION !
- Read sections 10.0 and 11.0 prior to all dismantling or repair work!
- Read section 6.0 before restarting the plant!
Fault Possible cause Corrective measure
power LED not lit Mains voltage failure Check the mains power supply
Operating voltage is incorrect Connect the operating voltage
indicated on the rating plate
Electronics have burnt out Make sure the mains voltage
coincides with the value indicated
on the rating plate.
Replace the electronics
Terminal not connected correctly or
cable does not make proper contact
inside terminal Insert the terminal securely and
check the connecting cable
Indication Meaning Possible cause Corrective measure
Blockage
Sensor surrounded by
cold condensate and /
or condensate
temperature is below
specified value
Detection temperature is too high
Set a lower detection temperature
(refer to 4.4 Measuring amplifier)
Depending on the steam trap type /
plant operating conditions,
condensate may collect in the test
chamber after the plant has been
shut down
No fault
The plant / part of the plant is not in
operation
High accumulation of condensate,
with the result that the capacity of
the steam trap is no longer
adequate
Select a steam trip with a higher
capacity
If thermal steam traps are installed,
the sub-cooling temperature is too
high
Refer to the Operating Instructions
for the steam trap
Blocked strainer or valve inside the
steam trap
Defective controller inside the
steam trap
Leakage
Steam leakage
Sensor surrounded by
steam and
temperature is above
specified value Dirt has got inside the steam trap
control element, with the result that
the valve no longer closes
Check the steam trap
Refer to the Operating Instructions
for the steam trap
Controller defective
Blockage
+
Leakage
Sensor surrounded by
cold air / steam
Plant / steam trap not in operation
No fault
The plant / part of the plant is not in
operation