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10. Maintenance
Warning!
•
Switch off the power supply for all maintenance or repair works on the measuring system.
The tube must not be in operation during a sensor exchange.
•
Repair and maintenance work must be carried out by trained or expert personnel only.
•
The system is maintenance-free.
11. Warranty
Warranty is granted for one year starting from delivery date under the condition that the operating instructions
have been followed, no interventions on the appliances have been made and the components of the system show
no mechanical damage or wear resistance.
In case of a defect during the warranty period, defective components are repaired or are replaced free of charge.
Replaced parts turn into the property of ENVEA Process. If desired by the costumer that the parts should be
repaired or replaced in its factory, then the costumer has to take over the costs for the ENVEA Process-service
staff.
ENVEA Process is not responsible for damage, which did not develop at the delivery article; especially ENVEA
Process is not responsible for escaped profit or other financial damages of the customer.
12. Troubleshooting
•
Warning!
The electrical installation must only be checked by expert personnel.
Problem
Cause
Measure
Measuring system
does not work.
POW LED off.
RUN LED off.
Power supply interrupted.
Check the power supply.
Break of cable.
Check the connecting cables for a possible break of a cable.
Fuse defective.
Exchange the fuse.
Device defective.
Please call ENVEA Process for further instructions.
Measuring system
does not work.
POW LED on.
RUN LED off.
Microprocessor does not
start.
Power supply switch off and switch on.
Program cables remove.
Measuring system
works.
POW LED on.
RUNLED flashes three
times each cycle.
No sensor communication.
Sensor damaged.
Cable break between sensor and measuring system.
Sensor wrong connected.
Check cable.
Sensor damaged.
Replace sensor.
No 24 Volt supply on sensor.
Assure power supply.
Voltage drop on the supply
line too highly.
Examine cable lengths.
Measuring system
outputs wrong values.
Calibration not correct.
New calibration.
Calibration shifted by
abrasion on front end of
sensor.
New calibration.
Relay output -
Relay flickering.
Hysteresis too small.
Increase hysteresis, check effects caused by external devices.
Do not open, as otherwise the warranty claim expires!
