2.4 Mounting
2.4.1 Orientation
The meter may be installed in horizontal, vertical or sloping pipe runs. However, precautions must be
taken to assure that the metering tube is f~d at all times during measurement. A Vertical installation,
with the pipe line carrying liquid upwards assures a filled line under low flow rate conditions and also
minimizes wear on the meter lining by abrasive grit. Horizontal installations should be made with the
meter in the lower section of a pipeline to assure a filled meter condition.
For horizontal or sloping installations the meter should be placed so that the electronic housing of the
meter is on top. This will align the meter electrodes in a lateral plane. Positioning the meter in this
way eliminates the possibility of entrained air acting as an electrode insulator.
The meter must be oriented in accordance with the direction of process flow, as indicated by the
FLOW ARROW
on the meter data tag. For accurate metering, a straight pipe run equivalent to a
minimum of three straight pipe diameters are required upstream of the meter, measured from the
center of the meter. See Figure 2-3 for recommended piping diagram.
If a control valve is required, it is recommended that it be placed downstream of the meter. Upstream
valves can create turbulence that result in air pockets and may affect the meter’s accuracy or cause
its output to be noisy. A minimum of ten pipe diameters of straight pipe are required upstream
between the meter and a control valve or pump (refer to Figure 2-3).
FIGURE 2-3. RECOMMENDED PIPING DIAGRAM
10DS3111A INSTRUCTION MANUAL
2-4
Summary of Contents for 10DS3111
Page 9: ...FIGURE 1 2 ELECTRONIC COMPARTMENT WITH COVERS REMOVED 10DS3111A INSTRUCTION MANUAL 1 3 ...
Page 16: ...FIGURE 2 2 OUTLINE DIMENSIONS 14 THROUGH 24 INCHES 10DS3111A INSTRUCTION MANUAL 2 3 ...
Page 24: ...FIGURE 2 9 10DS3111 INTERCONNECTION WIRING 14 24 in 10DS3111A INSTRUCTION MANUAL 2 11 ...
Page 32: ...FIGURE 5 1 DIAGRAM OF FLOWMETER CIRCUIT 10DS3111A INSTRUCTION MANUAL 5 2 ...
