Omega | LVN-141/LVN-142 | Owner Manual | Omega LVN-141/LVN-142 Owner Manual

Omega LVN-141/LVN-142 Owner Manual
LVN-141/LVN-142
Vertical Level Switch
M-5176/1112
Installation:
Part Number
Mounting
HEX Size
Float Diameter
A s tandard N P T fem al e bos s i n tank top, bottom or s i de i s al l LVN-141
1/8” NPT
1/2”
1”
that i s requi r ed. U ni ts op erate i n an y atti tud e - f rom t he v ert i c al to a 30° i nc l i n ati on - wi th l e ad wi res up or d ow n. S t and ard LVN-141-G
G 1/8”
9/16”
1”
IP S pi pe e xt ends u ni ts to an y i nterm edi ate l ev el i n t he t ank .
LVN-141-M12
M12
5/8”
1”
Moi s ture P rotec ti on: W hen m oi s ture e xi s ts i n c o ndui t and
ext ens i on pi pes , th e pot enti al fo r thi s m oi s ture t o " wi c k " down
1/8” NPT
1/2”
1”
the wi re l eads and i nto t he s w i tc h as s em bl y e xi s t s . S ho ul d *LVN-142
thi s happe n, the s wi tc h wi l l app ear to be c l os e d due t o a hi gh *LVN-142-G
G 1/8”
9/16”
1”
res i s tanc e path thr ough the m o i s ture. T he f ol l owi ng s u gges ti ons m a y h el p to p rev e nt thi s fr om happeni n g:
*LVN-142-M12 M12
5/8”
1”
1. P i tc h c ond ui t a wa y from the l ev el s wi tc h, s o t hat c onde ns a*Plastic
sensors
made
from
NSF
approved
material
safe
ti on wi l l dri p a wa y fr om the l ev el s wi tc h as s em bl y.
2. W hen a v erti c al r un of e xt en s i on pi pe i s us e d t o e xt e nd a for use in potable water.
l ev el s wi tc h do wn fr om the top of the ta nk , a non -c onduc t i v e
s i l i c one oi l s houl d be us ed to fi l l the v erti c al run. A l t e rnat i v el y, an ap pro pri ate pot ti ng m a y be us ed to fi l l the v ert i c al run
to oc c up y t he s pac e i n whi c h c o ndens ati on wi l l norm al l y f orm .
C A U T ION LV N -141 an d LV N -14 2 l ev el pr oduc ts i nc orp orat e a
potti ng c a p or ar e ful l y potte d. D ue to the bondi n g c ha rac t er i s ti c s of the pot ti ng to t he wi re l eads , the re i s n o wa y of as s uri ng a wate r -ti ght s eal a t the potti ng j oi nt. O ur p ot t i ng c ap
wi l l res i s t m oi s ture to s om e de g ree, but t he pr ec aut i o ns m enti oned abov e s houl d be us e d to as s ure m oi s ture does n' t ent er
the s wi tc h an d c aus e a s ho rt.
T hread T reatm ent 1. S eal i ng: W hen threadi n g m et al t hr eads
i nto a m etal c oupl i ng, pi pe s ea l ant or P FA tap e i s r ec om m end ed. D ue t o pot e nt i al c om pat i bi l i t y prob l em s , when s eal i ng pl as ti c thre a ded uni ts , a c om pat i bl e pi pe s ea l ant i s rec om m ended.
2. T i ghteni ng: W hen threadi n g a pl as ti c l ev el s wi t c h i nt o a m et a l c oupl i ng, t he i n s t al l er s h oul d us e a s ui t a bl e wrenc h an d
ti ghten th e thr eads o ne to one a nd one hal f ad di t i onal t u rns pa s t hand -t i ght . O v e r -t orqui ng of t he t hreads wi l l res ul t i n
dam age to t he pl as ti c m ounti n g pl ug.
Electrical Data
S ee T ypi c al W i ri ng D i agram . C onnec t l ead wi res t o l o ad c i rc ui t , us i ng app rov ed
m ethod. C auti on: S ee s pec i fi c a ti ons abov e an d “S wi t c h R at i n gs ” bef or e c onnec ti ng p o wer.
S tandard re ed s wi tc h es i n O ME GA l ev el s wi tc h uni t s a re herm et i c al l y - s eal e d,
m agneti c al l y ac tuat ed, m ak e -an d - break t ype. S wi t c h es ar e S P S T or S P D T and
are rated i n V ol t - A m ps (V A ). S ee the adj ac ent c hart f o r m a xi m um l oad c h arac teri s ti c s of OME GA l ev el s wi tc h es . C A U T ION : C ont ac t prot ec t i o n i s requi red f or
trans i ent or hi g h i n -rus h c ur rent . C ontac t O ME G A f or m ore det ai l s .
E uropea n P res s u re D i rec ti v e A d dendum
T he produc t i s des i g ned a nd m anufac tu red i n ac c orda nc e wi t h S ound E ngi nee ri ng P rac ti c e as defi ne d b y th e P res s u re
E qui pm ent D i rec ti v e 97/ 23/E C . T hi s produc t m us t not be us ed a s a “s af et y ac c es s or y” as
defi ned b y th e P res s ure E q ui p m ent D i rec ti v e, A rt i c l e 1, P ar ag raph 2. 1. 3. T he p res enc e
of a C E Mark on th e uni t d oes n ot rel ate t o the P r es s ure E qui pm ent D i rec t i v e.
Wiring Diagram
T hi s produc t i s s ui ta bl e fo r C l a s s I an d C l as s I I ap pl i c at i ons onl y, pe r t h e re qui rem ents of s tand ard E N 6 073 0 and an y a ddi t i onal s p ec i f i c re qui rem ent s f o r a
parti c ul ar appl i c ati on or m edi u m bei ng s ens e d. C l as s I c om pl i anc e of m et al b odi ed uni t s re qu i res a gro und c onnec ti on bet we en the m etal bod y and the eart hi ng s ys t em of t he i ns t al l at i on. C l as s I c om pl i anc e of pl as t i c bodi ed
uni ts i n c ontac t wi t h a c onduc ti v e m edi um requi res t hat t he m edi um be ef f ec t i v el y e art h ed s o as t o prov i de an
earthe d b arri e r b et ween the u n i t and ac c es s i bl e ar eas . For C l as s I I I c om pl i anc e, a s u ppl y at s af et y e xt ra - l ow
v ol tage (S E LV ) m us t be prov i d e d. P l eas e c ons ul t t he Fac t or y f o r c om pl i anc e i nf orm at i o n on s p e c i f i c part num bers .
Im port ant p oi nts :
P roduc t m us t be m ai ntai n ed an d i ns tal l ed i n s tri c t ac c or danc e wi t h t he N at i on al E l ec t ri c al C ode and O ME G A p roduc t c at al og and i ns t ruc ti on bul l eti n. F ai l ure to o bs erv e thi s war ni ng c o ul d res ul t i n s e ri ous i nj uri es or d a m ages .
A n appr opri at e e xpl os i o n -proof enc l os ure or i nt ri ns i c al l y s af e i nt erf ac e dev i c e m us t be us ed f or ha z ardo us ar ea appl i c ati ons i nv ol v i ng s uc h thi ngs as (b ut not l i m i ted to) i gni t abl e m i xt u res , c om bus t i bl e d us t an d f l am m abl e m at eri al s .
* * * W arni ng: T o prev ent i gni ti o n of fl am m abl e or c om bus t i bl e at m os pheres , di s c onnec t po we r b ef ore s e rv i c i ng.
P res s ure a nd tem pe ratur e l i m i tati ons s ho wn on i ndi v i du al c at al o g pages and dra wi ngs f or t h e s p ec i f i ed l ev el
s wi tc hes m us t not b e e xc e eded . T hes e pres s ures and t em pera t ures t ak e i nt o c o ns i der at i on p o s s i bl e s ys t em s urge pres s ures /tem per atur es and thei r fr e quenc i es .
S el ec ti on of m ateri al s fo r c om pa ti bi l i t y wi th the m edi a i s c ri t i c al t o t he l i f e a nd op erat i o n of O ME G A l ev el s wi t c h es . T ak e
c are i n th e pro per s el ec ti on of m ateri al s of c ons t r uc t i on; p art i c ul arl y w et t ed m at e ri al s .
Li fe e xpec t anc y of s wi tc h c ontac ts v ari es wi th ap pl i c at i ons .
A m bi ent tem peratur e c han ges d o affec t s wi tc h s et poi nt s , s i nc e t he s pec i f i c gr av i t y of a l i qui d c an v ar y wi t h t em perat u re.
Lev el s wi tc hes h av e b een d es i g ned to r es i s t s hoc k and v i br at i o n; ho wev e r, s hoc k and v i b rat i on s houl d b e m i ni m i zed.
Li qui d m edi a c ont ai ni ng p arti c ul ate and /or d ebri s s h oul d b e f i l t e red t o e ns ur e pro per oper at i on o f O ME G A pro duc t s .
E l ec tri c al entri es a nd m ounti n g poi nts m a y req ui re l i qui d/ v a por s eal i ng i f l oc at e d i n an enc l os e d t ank .
Lev el s wi tc hes m us t not be fi el d repai re d.
P h ys i c al dam ag ed s us t ai ned b y the pro duc t m a y re nder i t uns er v i c eabl e.
240397 rev A
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