Omega Products LVE 951 Installation Manual

LVE 951/952 & 951-B

Electro-Optic Level Switch

M-5173/1112

Instal lati on:

1. For NP T th re ad e d u n it s:
a. Use T ef lo n ( T FE ) t h re ad t ape o r P erm atex # 80 72 5 p las t ic p ip e
sea l an t t o s ea l thre a d. Ca u tio n: Pip e s ea lant mu st no t c ome i n co n­tac t w i th p ri s m s u rf ace.
b. Th rea d s ens o r in to tan k wall and ti g ht en b y han d. Fu rthe r t igh ten
an a d di tion a l on e to t wo th r ead s pas t han d - ti ghtn ess. ( Avo i d ov e r­tig h te n ing , a s th i s ma y dama g e t h re ads. )

2. For M12 st raig h t th re aded uni t s:
a. T h re ad se n sor i nto t an k w al l b y ha n d un t il se ns or ho usin g c on­tac t s t an k wa l l su rf ac e. ( S e e b elo w fo r ma tin g o-r i ng g la n d d e si gn
inf o rm atio n .)
b. Th e se n so r s ha ll be to rqu e tig h te n ed to 1 2 to 2 4 in -l b ( 1. 4 t o 2. 7
N-m ) . Th i s ra n ge is sl ight l y mo r e th a n “h a nd-t i gh t” to in sur e sea l ing ,
and le s s th an tha t wh i ch wou l d c a us e ho usin g o r th r ead da ma ge.
c. CAU T IO N: Un de r no ci rcu m st ance s sh al l th e se ns o r be tigh tene d
mor e th an 1/ 6 tur n bey o nd th at r e qu i red t o s ea t th e bot t om of the
sen s or hou s in g wi t h th e o uts i de wal l of th e ta n k.

3. Se ns or may be in st al le d in h ori z on tal or up to 4 5 ° fr o m ho ri zo n ta l

Specifications

Materials:

Housing and Prism Polysulfone

Operating Pressure 0 to 250 psig, (0 to 17 bar) Max

Operating Temperature -40°F to 230°F (-40°C to 110°C)

Input Voltage 12 VDC ±10%

Current Consumption 12V ~10mA No Load

Output Configuration Open drain may sink 40 mA max.

Repeatability ±1 mm
Ambient Light
Immunity See Ambient Light Test

Approvals C.E. 61326

Note: Not for use in freezing liquids.

pla ne for be st ope r at i on. Ve r ti ca l m ou ntin g is p os si bl e , m ay be dr o pl et s ens i ti ve,
dep end i ng o n vi sc o sit y o f me d ia .

4. Cau t io n : D o n ot i ns t al l se n sor cl o se to in frar e d s our c es or inc and e sc en t l igh t.
Ref l ec tive su rfac es m a y i nte r fe re w ith prop e r op er a tio n o f th e o pt ic al

sen s or . (Co n su lt Om eg a if p ri sm is to be mo unt e d le s s th an 2” f ro m a ny r efl e ct ive

sur fac e .)

5. C on n ec t vo ltag e su p pl y (V d c + 10% ) B et we e n re d (+ ) a nd b la ck ( -) of u ni t.
Cau t io n : D o n ot c o nne c t o utp u t (blu e wi re) to V dc p ow er w i th ou t a lo a d.
See wi r in g di ag ra m s f o r ou tp u t co nf igur a tio n.

Thi s p ro duct co mpl i es wi t h EN6 1326 El ec tric a l Equ ipme n t for Me as ur em ent, Co n ­tro l a n d L a bo ra to r y u s e- EM C Re qu i rem e nt s fo r Mi n imu m Re q ui re me nts a nd I nd us­tri a l L oc atio n s.
Spe c ia l cau t io n sho u ld be ta k en t o me et EN 6 10 00 - 4- 5 S ur g e Im m uni t y i f any of
the foll o wi ng con d it io ns ap ply to the in st alla t io n: T he p r odu ct is i nsta l le d o ut si de;
the ca bl e is gr ea te r th an 30 met ers in le n gt h. In o rd e r t o mee t t he Su r ge Immu nity
req uir e men ts, the fo llow i ng c on di ti ons m ust be fo ll owe d d u ri ng i ns ta llat i on :

1. Sh i el d ed ca b le m us t be u sed, a n d th e sh ie l d m us t b e ti ed to ea r th gr o un d (n ot
pow er s upp l y g r ou nd) o n a t l e ast on e en d of th e ca bl e s hie l d/d rai n w i re. The
shi e ld m us t b e ma inta i ne d al l th e wa y f rom s ens o r to t h e po we r su pply .

2. If u n sh ield ed ca ble i s u sed , an e art h gr o un ded m e ta l co nd ui t ca n be u se d to
rep lac e t he s hiel d ed c ab l e.

3. Fo r t h e s en so r wit h m etal bo d y o r e nc losu r e t he bo d y/ en cl os ur e m u st be
gro und e d to ear t h. I f a p r ot e ct iv e m et al h ous i ng i s u sed, t he m eta l ho usin g sh o uld
be gro unde d t o ea r th .

4. If a p rot ect i ve plas t ic h ous i ng i s u s ed, the hou sing m us t be a ble to wi th stan d at
lea s t 2 k V fro m t he h o us i ng t o ea rt h gr o un d.
Mai n te n anc e : S e ns or ma y re q u ir e a p e ri od ic c lea n in g of pris m sur f ac e . C hlor i nat ­ed hy d ro c arb o ns m us t no t b e use d for cl ea ni ng . A mi ld de ter g ent ma y be us ed to
cle a n p ri sm s urfa c e.

Dimensions

LVE-951/952 LVE-951B

Nickel plated brass
body with glass prism

Actuation Condition 1/4” NPT M12x1-8

Wet LVE-951 LVE-951-M12

Dry LVE-952 LVE-952-M12

Wet LVE-951-B N/A

LVE-951/952 LVE-951/952-M2 LVE-951-B

Electrical Termination: Lead Wires, 22 AWG, TPE Jacketed, 6” to 8” Extended

Max Ambient Light

Black Container Opaque Container

390 FT-CD 30 FT-CD

Note:
Above testing is based on minimum readings
of at least two (2) samples.

The test depicted to the left was performed to
determine the sensor immunity level to
ambient light. The recorded ambient is the
maximum level at which the sensor performs/

Mating O-Ring Gland Design

M12 x 1 Straight Thread

239547 rev B