User Manual

20of30 MN890570 RevA

INSTALLATION StepNine

TheSeriesULSshouldalwaysbemountedperpendiculartotheliquidsurfaceandinstalledusingtheprovided

FKMmountinggasket.Makesurethatthefittingandtransmitterthreadsarenotdamagedorworn.Always

hand‐tightenthetransmitterwithinthefitting.Performaninstalledleaktestundernormalprocessconditions

priortosystemstartup.Note:ThepreferredmountingfittingfortheSeriesULSS&ULSMistheULS‐ACC‐121

(2”threadx1”thread)reducerbushing.

MountingGuide

1. Donotmountatanangle

2. Liquidshouldneverenterthedeadband

3. SideWall:

a. Mountat

least2”fromthesidewall

b. ForSeriesULSL‐mountatleast3”fromthesidewall

4. Donotmountwhereobstacleswillintrudeonsensor’sbeamwidth

a. SeeSpecifications,StepTwo

5. Donotmountinavacuum

6. Avoidmountinginthecenterofadome

toptank.

7. Inconebottomtank,positionthesensoroverthedeepestpartofthetank.



Donotinstallat

anglerelativetothe

liquid.

Donotinstallwithin

2”oftanksidewall.

(3”forSeriesULSL)

Donotinstallwith

objectsinthebeam.

Donotinstallin

applicationswith

vacuum.



Installation in existing f ittings:If the existing fitting is larger than the threads of the Series ULS, select a

reducerbushingsuchastheULS‐ACC‐121(2”threadx1”thread)orULS‐ACC‐131(3”threadx2”thread).

MetalTanks(SeriesULSS&ULSM):DwyerInstruments,Incultrasonictransmittershavebeenoptimizedfor

useinnon‐metallicfittings.

1. Forbestperformance,avoidtheuseofmetallicfittings.

a. Useaplastic2”x1”reducerbushing,suchastheULS‐ACC‐121oraplastic1”flange,suchasthe

ULS‐ACC‐312formetallictanks.

While installations directly into a 1” metal fitting are not recommended, acceptable results may be

obtained if the 1” fitting is a half coupling in formand the outer diameter of the coupling istightly

wrappedinvinyltapetodampenvibrations.