Omega | FSW-120 Series | Owner Manual | Omega FSW-120 Series Owner Manual

Omega FSW-120 Series Owner Manual
FSW-120 Series
Molded Flow Switch
M-5170/1112
Installation:
FSW - 120 uni ts are fac t or y -c al i brat ed wi t h w at er i n v ert i c al p os i t i on, wi t h l e ad wi res up. O bs erv e prop er
di rec ti on of l i q ui d fl o w, as m ark ed “ IN ” a nd “ OU T ” on ho us i ng. C an be i ns t al l ed i n an y ori ent at i on.
B e c areful to k eep forei gn m ateri al out of uni ts duri ng i ns t al l at i on. U s e of 50 m i c ron f i l t rat i on i s rec om m ended. A l l pl as t i c
N P T threads s ho ul d be i ns t al l e d us i ng a s ui tabl e t h rea d s eal a nt . (S uc h as T ef l on t ape or P e rm at ex “N o More L eak s . ”)
S eal ant m us t be k ept out of uni t duri ng i ns t al l ati on.
A v oi d ov er -ti ghteni ng wh en c on nec ti ng pi pi ng t o uni t , whi c h i s c ons t ruc t e d of pl as t i c m at eri al . C onnec t i on of m et al l i c pi pi ng to pl as ti c u ni ts i s not rec om m ended.
WARNING: FSW-120 flow switches are plastic, straight -thread, “O” ring sealed instruments.
Over-tightening will result in breakage.
Port Adapter Fittings: Ins t al l pl as ti c a dapt ers wi t h O -ri ngs (s u ppl i ed) di rec t l y i nt o “ IN ” and “ O U T ” po rt s be f ore i ns tal l i ng uni t. C A U T ION : D o not exc eed 20 i nc h - pounds m axi m u m t orque wh en i ns t al l i ng ada pt e r f i t t i ngs . H ol d wre nc h f l at s
on ad apters as i n di c ated bel o w wh en i ns t al l i ng uni t i n pi pi n g t o prev ent a ddi t i onal t orq ue ac c um ul at i on bet w een adapt er
and bo d y. (N o te: P or t ada pter f ittin gs m us t be pur c hase d s ep ar atel y. )
Maintenance: T he onl y m ai ntenanc e norm al l y requi red i s o c c as i onal c l eani ng wh en e xc es s i v e c ont am i nat i on i s pres ent i n the l i qui d. T o di s as s em bl e the uni t for c l eani ng: W i t h s ys t em s hut down an d no l i qui d i n pi pi ng, rem ov e (1) P i s t on
P l ug, (2) S pri ng, a nd (3 ) P i s ton. It i s not nec es s ar y t o r em ov e t he uni t f rom t he s ys t em . R eas s em bl e uni t i n rev ers e o rde r
(#3 to # 1). U s e c are w hen h andl i ng s pri ng t o pr ev ent di s t ort i on.
Wiring Diagram
Dimensions
Adapter
Size
1/8” NPT
Part Number FSW-120-18
1/4” NPT
Specifications
Wetted Parts
Housing and Piston
PPS Resin - R4
O-Ring
FKM
Other Wetted Parts
Epoxy
Spring
316 Stainless Steel
Operating Pressure
250 psig at 70° F
Operating Temperature -0° to +225°F (-17°C to +100°C)
Set Point Accuracy
15%, Maximum
Set Point Differential
20%, Maximum
Switch
SPDT, 20 VA
Inlet/Outlet
9/16” - 18 UNF - 2B Thread
Electrical Termination
18 AWG, 24” L., PVC Lead Wires
Important Points:
Part Number FSW-120-14
Switch Ratings Maximum
Resistive Load
VA
Volts
Amps AC
Amps DC
20
0 - 30
.4
.3
120
.17
.13
240
.08
.06
NOTE: The switch mechanism is an
hermetically sealed reed switch for
pilot duty only.
T hi s produc t i s s ui t abl e f or C l as s I and C l as s I I a ppl i c at i ons onl y, pe r t h e re qui r em ent s of s t and ard
E N 60730 a nd an y addi t i on al s pec i f i c requi r em ent s
f or a part i c ul a r appl i c at i on o r m edi um bei ng s ens e d. C l as s I
c om pl i anc e of m et al bodi ed uni t s requi res a g roun d c onn ec t i on bet we en t he m et al bod y a n d t he ea rt 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 t s i n
c ont ac t wi t h a c ond uc t i 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 he d s o as t o prov i de a n eart hed b arri e r
bet ween t h e uni t and ac c es s i bl e areas . For C l as s I I I c om pl i anc e, a s uppl y at s af et y e xt ra -l ow v ol t a ge (S E LV ) m us t be
prov i ded. P l eas e c ons ul t t he F ac t or y f or c om pl i anc e i nf o rm at i on on s pec i f i c p art num be rs .
Om ega produc ts m us t be m ai nt ai ne d a nd i ns t al l ed i n s t rict accordance with the National Electrical
C ode a nd t he a ppl i c abl e Om eg a pro duc t i ns t ruc t i on B ul l et i n t h at c ov ers i ns t al l at i on, op erat i o n and pro per m ai nt e nanc e.
Fai l ure t o obs e rv e thi s i nf orm ati on m a y res ul t i n s e ri ous i nj ur y o r dam ages .
For ha zar dous are a a ppl i c ati on s i nv ol v i ng s uc h t hi n gs as , but not l i m i t ed t o, i gni t abl e m i xt u r es , c om bus t i bl e dus t and
fl am m abl e m ateri al s , us e an a p propri at e e xpl os i o npr oof e nc 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.
P l eas e adh ere to t he p res s ur e and tem pe ratu re l i m i t at i ons s ho wn t hro ugho ut t hi s c at al og f or o ur l ev el and f l o w s ens ors .
T hes e l i m i tati ons m us t not be exc eede d. T hes e pr es s ur es an d t em perat u res t ak e i nt o c ons i derat i on pos s i bl e s ys t em
s urge p res s ur es / tem per atur es and thei r freq uenc i es .
S el ec ti on of m ateri al s f or 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 o perat i o n of O m e ga pro duc t s . T ak e c are i n
the pro per s el ec ti on of m ate ri al s of c ons tr uc ti on, t es t i n g i s req ui red.
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 on.
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 grav i t y of a l i qui d c an v ar y wi t h t em pe rat u re.
Our s ens ors hav e be en d es i gne d to res i s t s h oc k and v i brat i o n. H owev er, s h oc k and v i brat i o n s houl d b e m i ni m i zed.
Fi l ter l i qui d m edi a c o ntai ni ng pa rti c ul ate an d/or debri s t o ens u re t he pro per oper at i on of our pro duc t s .
E l ec tri c al entri es a nd m ounti n g poi nts i n an enc l os e d t ank m a y r equi re l i qui d/ v apo r s eal i ng.
Our s ens ors m us t not be fi el d -re pai red.
P h ys i c al dam ag e s us tai n ed b y p roduc t m a y re nde r i t uns e rv i c ea bl e.
240327 rev B
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