Seametrics EX100-200 Series v.2 - Manual (Page 4)

Piping. For best results, the EX sensor should be in-
stalled with at least ten diameters of straight pipe
upstream and five downstream. Certain extreme situations
such as partially-opened valves are particularly difficult and
may require more straight diameters upstream.
Immersion. The 100/200 Series standard sensors are
not designed for continuous underwater operation. If this
is a possibility, as in a flooded vault, a unit modified for
immersion should be specified (Option -40).
Page 2
Caution: These flow sensors are not
recommended for installation down-
stream of the boiler feedwater pump
where installation fault may expose the
flow sensor to boiler pressure and temperature.
Maximum recommended temperature is 130°F
(Plastic), 200°F (Metal).
INSTALLATION
DISTORTED FLOWS
Distorted
Flow Profile
FLOW
10X
Diameter Minimum
5X
Diameter
Minimum
POSITIONING ThE METER
Horizontal is the preferred installation orientation, since it
improves low-flow performance and avoids problems with
trapped air. Bottom, top, and vertical pipe installations are
all acceptable if required by the piping layout.
Fair
(Unacceptable position
if air is present)
best
Position
Fair
(Unacceptable position if
fluid contains sediment)
Faster Flow
Causes Meter
To Read high
AR
CH
IVE
D
(Includes Dates 5/05 to 9/06)