LMI RFP Series, Instruction Manual, Page: 2 / 12

2
INSTALLATION
TYPICAL INSTALLATION
I. UNPACKING
A. Remote Flowmeter (RFP) units are packaged in two
separate cartons. One carton contains the Flowmeter and
10 feet of cable for direct hookup to the Remote Program-
mable Divider. The other carton contains the Remote
Programmable Divider complete with 10 feet of cable for
direct connection to an LMI metering pump.
B. Remote Flowmeter units in 3/4", 1", and 1 1/2" sizes
have a pair of union couplings and gaskets included. The
2", 3", 4" and 6" sizes have flange connections.
C. Because of test water residue, the Remote Flowmeter
should be stored in a frost-proof area. If this is not
possible, the Remote Flowmeter must be thawed prior to
installation.
II. LOCATION
A. Flowmeter
1. Remote Flowmeters should be installed in a frost-
proof, easily accessible area.
2. To prevent accumulation of air and a resultant error in
measurement, the Flowmeter should be installed on the
lowest horizontal point of the pipeline.
3. An uninterrupted run of straight pipe with a length at
least 10 times the nominal diameter of the Flowmeter
both upstream and downstream is need to ensure accurate
readings.
4. If the pipe line downstream from the Flowmeter is
open discharge, the pipe must be raised so open dis-
charge elevation is higher than the top of the Flowmeter
(see "Typical Installation" drawing below).
5. Thoroughly rinse the pipeline by opening the upstream
shut-off valve before installing the Flowmeter.
6. The Remote Programmable Divider may be located as
far as 100 feet from the Flowmeter location. Extension
cables are available. Please consult the factory if the
Remote Programmable Divider will be installed more
than 100 feet from the Flowmeter.
7. The flowmeter must be installed horizontally and
level, with the glass register positioned up (12:00 posi-
tion--see "Typical Installation" drawing).
8. For ease of installation, install a shut-off valve, with an
orifice diameter at least as large as the nominal size of the
Flowmeter. Installation of a bypass is also recommended
for easy removal or servicing of the Flowmeter without
interrupting the water flow (see "Typical Installation"
drawing).