APG LFE Series user manual - Manual (Page 6)

LFE Series Rev. A1, 4/07
6
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• Installation Location
Locate the LFE at the position where the liquid level variation will actually
make contact with it. DO NOT locate near liquid inlets/outlets. If there is
turbulence, use a time delay relay to dampen the switch action.
LFE-XXX-XA (Switch closes as level falls), see Figure A
LFE-11R
LFE-12R LFE-11P LFE-12P
Close as level falls 18 28 15 23
Open as level rises 16.5 26.5 13.5 21.5
LFE-XXX-XB (Switch closes as level rises), see Figure B
LFE-11R
LFE-12R LFE-11P LFE-12P
Close as level rises 17 26 14 25
Open as level falls 18.5 27.5 15.5 26.5
Figure A Figure B