Users Manual Part 2
Table Of Contents
- Contents
- 1 Preliminary note
- 2 Safety instructions
- 3 Intended use
- 4 Items supplied
- 5 Function
- 6 Mounting
- 7 Electrical connection
- 8 Parameter setting
- 9 Operation
- 10 Troubleshooting
- 10.1 Troubleshooting incorrect level readings
- 10.1.1 Level too high / too low
- 10.1.2 Measured value is stuck
- 10.1.3 Measured value drops when level close to antenna
- 10.1.4 Measured value fluctuates
- 10.1.5 Measured value is occasionally unstable
- 10.1.6 Lagging of measured value during rapid level changes
- 10.1.7 Measured value correct at 0% (4 mA) but incorrect at 100% (20 mA)
- 10.1.8 Incorrect measured value when level is above 50%
- 10.1.9 Measured value drops to zero close to tank bottom
- 10.1.10 Level measurement is lost in an empty tank
- 10.1.11 Alert mode when level close to tank bottom
- 10.1 Troubleshooting incorrect level readings
- 11 Maintenance, repair and disposal
- 12 Factory setting
- 13 Appendix
Electronic level sensor LW2720
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6.8.3 Premount the adapter for pipe fittings
u Slide the coupling nut up over the bottom of the unit.
u Make sure that the O-ring is mounted in the groove of the unit.
u Screw the adapter onto the unit until it is hand-tight.
u Secure the unit and adapter using a vice.
Use suitable vice jaws (protectors). Do not over-tighten the vice
as it might damage the adapter.
39 mm
u Tighten firmly. Recommended tightening torque: 35 Nm.
Further tightening may affect the sealing. Replace the O-ring or
the entire process connection if the seal area is damaged.
6.8.4 Install the welding aid
Install the welding aid:
The welding aid absorbs heat during the welding process and can prevent warping of the weld-in
adapter.
GB