Burkert Type 8071 - Manual (Page 19)

19
Maintenanceandtroubleshooting
Type 8071
9.6. if a problem occurs
Problem Cause Solution
Fluid does not
flow through the
device any more Obturated device
→
Remove and clean the oval rotors (see chap. "9.4. Dismantle the device" and
"9.5. Assemble the device").
→
Add a strainer of 75 µm upstream of the device.
Obturated strainer (if present)
→
Clean the strainer.
Rotors damaged
→
Replace the rotors (see chap. "10. Spare parts and accessories", "9.4. Dis-
mantle the device" and "9.5. Assemble the device").
Reduced flow
rate through the
device Strainer (if present) partially obturated
→
Clean the strainer.
Fluid too viscous Use rotors for fluids with a viscosity > 1000 mPa.s.
Incoherent
measurement Flow rate range not adapted
→
Verify specifications, adjust the device or the flow rate (see chap. "6.2.2.
General data").
Air within the pipe
→
Slowly drain air from the pipe.
Friction due to an incorrect assembly
of the device
→
Verify the assembly of the rotors in the fitting (see chap. "9.4. Dismantle the
device" and chap. "9.5. Assemble the device").
No frequency
output Incorrect wiring of the outputs
→
Make sure that the device has been wired correctly (see chap. "7.3. Wiring").
Rotors incorrectly mounted
→
Dismantle the device and modify the position of the rotors (see "9.4. Dismantle
the device" and "9.5. Assemble the device").
Magnet damaged
→
Replace the rotors (see chap. "10. Spare parts and accessories", "9.4. Dis-
mantle the device" and "9.5. Assemble the device").
Hall sensor or Reed switch defective
→
Replace the cover with electronic module (see chap. "10. Spare parts and
accessories", 9.4 and 9.5).
English