FPR120 Series
Visual Flow Indicator with Switch
Description:
FPR 1 2 0 unit s monit o r dyn a m i c fluid flo w . The roto r react s to turbul enc e , pul -
sati o n, entr a i ned air, and ot h e r flow a bn o r mal iti e s i n duce d i n th e fl o w st ream
by o t h er pro c ess ha rd wa r e. For o p t im u m p erform anc e, i nst all un i ts w here nom -
ina l flow co n dit i ons exis t , with port s loc a ted at the to p . Inc o m i ng flo w m a y be
plac e d to ei t h er p o rt . A mi n im um of 8” of s trai g h t pip e on th e in l et si d e is re -
quir e d .
Installation: FPR 1 2 0 serie s sensors co nnec t t o piping via NPT m a t ing thre a d fo r m s.
The fo l lowi n g g u i d e l in e s a r e p r ov i ded to ass i st with i n s tal l ati o n f or a leak - free sea l , w i tho ut
dam a ge to th e uni t : 1. A p pl y pipe t h r ea d s eal ant to m al e p i p e t hreads . 2. T hrea d uni t on t o
ma l e pi p e thr ead u nti l ha n d -ti g ht. 3 . Ti g hten pipe 1 to 1 -1/2 a d di t iona l turn s . 4 . If i mp r o pe r
seal res ults , con t i n u e t urni n g p i pe i nto uni t i n 1/ 4 t u rn i nc r em e n ts . Do n ot e xc eed one ad d i-
tio n a l tu r n . R ecom m e n ded P ipe S e a l ant : PFA Th r e ad T ap e .
Panel Mounting:
An y FPR 1 20 se ries s e nsor m ay be pan el m ou n t e d using hol e s i nte g r at e d i nto th e b o di e s .
Two (2 ) m o un t i ng ears ar e p ro v i ded a t the bod y cent e rl i ne to r e c eiv e #8 sel f -t a p ping
scre ws. NO T E : A NS I T T ype 2 3 sel f - tappi ng s c re ws a r e rec o m me n d ed. T h e y ma y be r e -
plac e d wi t h s t a nd a r d m ac h i ne s cre ws i f rei n s tal l ati o n s h oul d be req u i re d .
Filtration and Cleaning: 150 mi c ron filtra t i on is rec o m m en d e d. However , sho u l d
forei g n partic l es ent e r t he FPR 1 2 0 s en s or, accum ula t i o n i s e a s il y cle a red b y removi ng t he
lens from th e b o dy. T he len s i s r em o v ed b y t u r ni n g i ts c ent e r r i b 4 5 ° c o un t e r - c l ock wis e an d
then pull i ng i t o u t. T o r e inst a ll the l ens, si m pl y r evers e th e p r oc e s s.
Pre s s ure m ust be r eli e v ed from t h e s ystem pri o r t o sen s or c lean - o ut.
Switch Set Point Calibration with LED Signal:
W ith the uni t inst a l le d in t h e li n e and p o wer suppl i ed, co m pl e te the
fol l owing step s to c ali b r at e s wi t ch ac t uati o n p o i nt w i t h p ro p e r f l o w
rate. A sm a l l flat - blad e sc r e wdr i ver is all tha t is requi r e d . 1. Adjust
liq u i d f l ow in th e lin e t o the
rate at whic h a c tu a tio n i s des i re d . 2. Ins e r t scr e wd r i ve r int o o pen i ng
on ba c k s i de o f ho u sin g a n d fit bl a de i n to
the poten t i om e ter adjus t me n t s c r e w i n sid e . 3. If LED is n ot illu m i nat-
ed, slo wl y t u r n sc r e w d r i ver c o u n ter -clock wis e a nd st o p as s o on as
LED illum inat e s . 4. If LED i s il l um i nat e d , t ur n screwd riv e r c loc k w i se
unti l LED l igh t g o es out . The n, sl o wly tu rn sc r e wd r i ver c o un t e r -
clo c k wi s e an d sto p as s o o n as L E D il l um i nate s .
N O T E S :
Pro d u c t m ust be maint a i ned an d ins t all e d i n st ric t acco r d a nc e wi t h t h e N a tio n al E le c t ric a l C od e and Om eg a p r o duct cat a-
log and in s t ruct i o n bull e t in. Fail u re to o b serv e this warning coul d resul t in serious injuri e s or damages . An appro p riat e
expl o sio n -p r o of e n c los u re o r i nt r i nsi c all y safe int e rfa c e de v ice mu s t be used f o r ha zar dous a rea ap p l ic a t io ns in v o lvi ng
such t h in g s as (bu t not l im i ted to) i g n it able m i x t u res, com bust i bl e dust an d f lam ma b l e m a t e r i a l s. P r e ssur e an d te m per a -
ture lim i tati o ns shown on in div i dual catal o g pages and dra wi n gs for the specifi e d flow switch es must not b e e xc e ed e d .
The s e pressur e s and tem perat u res tak e into consi d e r at i on possi b le system surg e press ures / t e m pera t u re s and thei r fre -
quenc i es. S ele c tio n of m ate r i als fo r compa t i bil i t y w i th t he m edia is c rit i cal t o the l if e a nd o perat ion o f Om ega f l ow s wit c h -
es. T ak e car e i n the p rop e r s e le cti o n of materi a ls of co n struc t io n; pa rti c ularl y w ette d m ateri a ls. Li f e e xpect anc y of s wi t ch
cont a c ts v a ries with a ppli c ati o n s . Ambi e nt te m per a t ure c hang e s do af f ect s wit c h set p oi n ts, s inc e t he s p e cif i c g ravi t y of a
liq u i d can var y wit h tem pera t u r e. Flow switches have been desig n e d to r e sis t shoc k and vib r ati o n; howev e r , shock and
vib r a tion s ho u l d b e m i nim ized. Liqui d media c o n t aini n g p a rtic u l a t e an d/or debris s ho u l d b e fi l te r ed to ensu r e pr o p e r o pe r -
ati o n o f Om ega p r od u c ts . El e ctr ic a l e ntri es a n d m o u nti n g p o int s m a y r eq u ire l i qu i d/v a p o r s eal i n g i f loc a t e d i n an e n cl ose d
tank . Fl o w s w i tch es m ust n ot b e f iel d repa i re d . Ph ysic a l d am a g e d s usta i ne d b y t h e p r od u c t m ay rende r i t uns e rvi c eabl e .
Thi s p roduc t i s s uit a b le for Cl a s s I and Cl a s s II ap p l ic a t ions on l y, pe r t h e r e qu i rem e nts of st and ard EN 6 0 73 0 an d
an y ad d i ti o n al s peci f ic re q u ir e me n t s for a p a rti c ula r a p pl i cat i on o r med i um b e i ng s e n sed. C l as s I com p l ia n c e of
me t a l bodi e d u n i ts re q uire s a gr ound c o nn e c ti o n bet ween t h e m e tal bo dy an d the e a rth i ng s yste m of the i nsta l la-
tio n . Cl a s s I co m pl i ance o f pla s ti c bod i ed un i ts i n cont a c t w i th a con d u c ti v e m e d ium requi r es t h at t h e m e dium be
effe c t ive l y ea r t he d so a s to p r ov i de a n e arth ed ba rri e r bet ween the u n it a n d acc e ssi b l e a reas. For Cl a ss I I I c o m -
pli a n ce, a s uppl y a t s a fet y e x tr a - l o w vol t ag e (S E LV) m u s t b e provided . P lea s e c o nsu l t t h e F ac t or y f or c om pli a n ce i nfo r-
ma t i on o n spec i fi c p a r t num be r s .
Electrical Data
Input Po wer a n d o u tp u t are c o n nec t ed v i a a m u l ti -conduc t or , P V C -jac k e t e d 24” c abl e . C olo r co d e s ar e s h o wn bel o w:
Flow Range—GPM
Standard Low Flow
Body Material Port
Size
Input
Power
Part Number
NPT Threads
Part Number
BSPP Threads
Range Range Adapter Part
Number
Polypropylene
.25
24 VDC FPR 122 FPR 122-BSP
0.5 - 5.0 0.1 - 1.0 152147
110 VAC FPR 123 FPR 123-BSP
.50
24 VDC FPR 125 FPR 125-BSP
4.0 - 20.0 1.5 - 12.0 151832
110 VAC FPR 126 FPR 126-BSP
M-1960/1112
*BSPP units are 4.95”
+VAC/VDC Red
-Power Black
N.O. Contact White
N.C. Contact Brown
Common Green