IM-P736-02 EMM Issue 3
34
VLM30 In-Line Vortex Flowmeter
3.13 Opening and closing the housing
Warning!
Risk of injury due to live parts.
Improper work on the electrical connections can result in electric shock.
- Connect the device only with the power supply switched off.
- Observe the applicable standards and regulations for the electrical connection.
NOTE
Potential adverse effect on the IP rating!
If the O-ring gasket is seated incorrectly or is damaged, this may have an adverse effect
on the IP rating.
- Check that the O-ring gasket is properly seated when closing the housing cover.
Fig. 18 Cover lock (example)
To open the housing, release the cover lock by screwing in the Allen screw.
After closing the housing, lock the housing cover by unscrewing the Allen screw.
Note: After several weeks, increased force will be required to unscrew the housing cover. This is not caused
by the threads, but instead is due to the type of gasket.
The electrical connection may only be established by authorised specialist personnel and in accordance
with the connection diagrams.
The electrical connection information in this manual must be observed; otherwise, the IP rating may be
adversely affected. Ground the measurement system according to requirements.
Allen screw Allen screw
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