Seametrics IP80 Series Instructions page 2

Installation
These water meters are not recom-
mended for installation downstream of
!
the boiler feedwater pump where instal-
lation fault may expose the meter to
boiler pressure and temperature. Maxi-
mum recommended temperature is 130ºF (Plastic),
200ºF (Metal).
Fitting Installation. IP80 Series meters require spe-
cial fittings. The meter fitting must first be installed in the
pipeline. Straight pipe of at least ten times the diameter
upstream of the meter and five diameters downstream
are strongly recommended. Inadequate straight pipe,
especially downstream of an elbow, change in pipe di-
ameter, or partially-opened valve, can result in signifi-
cant inaccuracy. Typically this inaccuracy is in the form
of the meter reading high. Some IP80 Series meter fit-
tings are supplied with upstream straight pipe.
10
Diameters
In the larger sizes, the length provided is less than ten
diameters upstream and five downstream. It is not ad-
visable to connect directly to the end of these fittings
with a flow-disturbing device such as a valve or elbow. If
possible, straight pipe should be added to these fittings.
Caution: Never remove the u-
!
clip retainer when the pipe is
under pressure. Always remove
pressure from the pipe before
attempting to remove the meter.
Removal under pressure may result in damage
or serious injury.
A PVC fitting is usually installed by solvent welding. The
stainless steel and brass meter fittings have female pipe
threads, requiring the appropriate male threaded fittings.
Saddle fittings (size 3" and above) require a hole to be
cut in the pipe. The recommended hole size is 1-3/4".
2 of 4
Meter Installation. After the meter fitting is installed in
the pipeline, the meter can be installed in the fitting. Press
the meter into the fitting as far as it will go. Then retain
the meter in place by inserting the u-pin. This pin
can be installed from either side. It is sometimes neces-
sary to rotate the probe back and forth slightly to start
the pin into the slots on the probe. Slide the pin in as far
as it will go.
Meter Connection. See the "IP80 Series Connections"
diagram for meter connections. Unless the meter is sup-
plied pre-connected to a meter-mounted FT415/420 flow
indicator, three leads must be connected. These three
5
leads are color coded. The red wire is 6-24 VDC posi-
Diameters
tive, the black is negative, and the white wire is the sig-
nal lead.
IP80 Series Connections
K-factor. If the IP80 Series meter is ordered with its
fitting, the meter is factory calibrated in the fitting. A K-
factor (meter factor) is indicated on the side of the fit-
ting. This represents the actual number of pulses per
gallon the meter produced during the factory flow test.
This number can entered into an FT415/420 or FT5210
flow indicator to make it read properly. If a pulse divider
is being used, the K-factor is the starting point for calcu-
lating the divider number.
Okay, if no air in pipe
BEST
Okay, if no sediment
in pipe.
Red (+)
White (SIG)
Black (-)