Burkert 8045 - Page 34

34
8045
ENGLISH
MAINTENANCE
5.1 STORING AND CLEANING OF THE SENSOR
In correct installation conditions the 8045 flow transmitter is maintenance-free. If
contamination or clogging should occur during operation the sensor can be cleaned
with water or another cleaning agent compatible with the PVDF and SS316L.
It is highly recommended to perform a calibration of the zero point 24 hours
after the cleaning of the electrodes, or in cases of changes of the fluid.
The current output is set to 22 mA in case of an electronic failure and at the
start-up of the device all parameters are set to factory setting values (§ 4.6).
The reasons for failure can be seen within Display ERROR - output current
22mA in the trouble shooting guide below.
5.2 TROUBLE SHOOTING GUIDE
If any problems persist, please contact your local Bürkert subsidiary or
return the product with a full explanation of the problem.
This section is designed to assist with problems which may occur during installation or
operation. If in doubt please do not hesitate to contact you local Bürkert subsidiary.
Faults Status Actions
The transmitter does not work
Transmitter connected No Connect the device 3.3
Power supply on terminal + and - ok? No Check the connection 3.3
Power supply between 18-30VDC? No Change power supply ----
Power supply regulated
(oscillations rate less than 5%?) No Change power supply ----
Fuse OK (if any) No Change the fuses ----
Switch on (if any) No Set the switch ON ----
Transmitter programming/testing unavailable
Internal switch 2 Locked? Yes Set switch 2 down. 3.4.3
Display ERROR - output current 22mA
Display at the start-up (EEPROM failure)? Yes Restart the device ----
Error at each start-up? Yes Return the device ----
Display after validation of the menu
(EEPROM failure) Yes Configure the device again 4.4
Failure at each validation of the menu? Yes Return the device ----
Fluctuating display
Inappropriate filter ? Yes Increase the filter or 4.4.7
select slow mode filtering.
Air bubbles in the fluid Yes Set slow mode filtering 4.4.7
The electrodes are dirty Yes Clean the electrodes 5.1
Are the electrodes passivated No Install the transmitter into 3.1
the fluid 24hr before use
5.1