ENSIM SENSORS ELC 21d Operating Manual page 6

2.7.
Please pay attention to following matters in order to operate your flow switch properly.
Do not connect the switch in reverse.
Their characteristics may vary.
Do not pull the cable strongly,
otherwise the characteristics
might be changed.
Please do not dip cables
potting into liquids,otherwise
instulation problem may cause.
WARNING !!!
Vibration might be caused instability.
Please keep away from magnetic materials
like iron board ; otherwise the
characteristics might be affected
Do not fasten switch reversely ,
otherwise its characteristics
might be changed.
6
When opening the upper part of the housing
not to break the connection plastic
please note.
In case vapour splash cable
potting points,insulation
problem may cause.
Fluids that can damage the material
keep away.