Manual

Form #04-VAM-UM-00229 09/12 Page 7
Don’t - Install the meter near fast-
acting valves. Fast-acting valves
have the potential to create high
magnitude hydraulic pressure
spikes. These spikes can damage
the internal components of the
meter, resulting in inaccuracies or
malfunction.
Don’t - Allow unidirectional meters
to be operated against the direc-
tion of the ow arrow. The standard
ow meter is an unidirectional ow
meter. The piston acts as a check
valve to block ow in the reverse
direction. This causes an excessive
pressure dierential, which can
result in damage to internal meter
components. The ow meter is
also available in a modied design,
which oers a reverse ow by-pass
feature to accommodate bi-direc-
tional ow.
NOTE: In-line meters with a reverse
ow by-pass feature are available. Con-
sult factory for details.
INSTALLING THE FLOWALERT
1. See Figure 4. Mount the meter
so uid is traveling in the
direction of the ow arrow.
2. See Figure 5. Select a mounting
location that is suitable for
viewing and product service. To
connect the ow meter into the
piping system, place an open-
ended wrench onto the ow
meter wrench ats adjacent
to the pipe connection being
installed. DO NOT wrench on
the opposite end of the ow
meter or leakage may result.
3. See Figure 6. After installation,
rotate meter by hand to view
ow scale.
ELECTRICAL CONNECTIONS
Micro Switch
Equipped Models
All meters (size ¼” to 1½”) are of-
fered in single (1) switch or double
(2) switch models. The single switch
model is equipped with a 34” length
of 4-wire #18 AWG type SO jacketed
cable. The double switch model is
equipped with a 18” length of 7-wire
#16 AWG type SO jacketed cable.
One Switch  4-Wire Cable
Red Normally Closed (NC)
Black Normally Open (NO)
White Common
Green Ground
Two Switch  7-Wire Cable
Switch 1
Red Normally Closed (NC)
Black Normally Open (NO)
White Common
Switch 2
Orange Normally Closed (NC)
Blue Normally Open (NO)
White/Black Common
Green Ground
TABLE 2  MICRO SWITCH
WIRE DESIGNATIONS