User's Manual AXF Magnetic Flowmeter Integral ... - Yokogawa
User's Manual AXF Magnetic Flowmeter Integral ... - Yokogawa
User's Manual AXF Magnetic Flowmeter Integral ... - Yokogawa
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3. INSTALLATION<br />
3.3.4 Nominal Diameter 2.5 mm (0.1<br />
in.) to 400 mm (16 in.), Flange<br />
Type<br />
IMPORTANT<br />
Use bolts and nuts in compliance with the flange<br />
ratings. Be sure to choose a gasket with an<br />
inner diameter that does not protrude inside the<br />
piping (refer to Table 3.3.13). If the inner diameter<br />
of the gasket is too large, however, fluid<br />
leakage may result.<br />
(1) Mounting Direction<br />
Mount the flowmeter so that the flow direction of the<br />
fluid to be measured is in line with the direction of the<br />
arrow mark on the flowmeter.<br />
IMPORTANT<br />
If it is impossible to match the direction of the<br />
arrow mark, the direction of the electrical connection<br />
can be changed. Refer to Section 5.1 to<br />
do this properly.<br />
In case the fluid being measured flows against<br />
the arrow direction, refer to the parameter J20:<br />
Flow Direction in the user’s manual of the<br />
<strong>AXF</strong>A11 <strong>Magnetic</strong> <strong>Flowmeter</strong> Remote Converter<br />
(IM 01E20C01-01E) or the <strong>AXF</strong>A14 <strong>Magnetic</strong><br />
<strong>Flowmeter</strong> Remote Converter/<strong>AXF</strong> <strong>Integral</strong><br />
<strong>Flowmeter</strong> [Software Edition] (IM 01E20C02-<br />
01E).<br />
(2) Tightening Nuts<br />
Tighten the bolts according to the torque values for the<br />
metal piping in Table 3.3.14. For PVC piping, select an<br />
optional code of GA, GC, or GD, use rubber gaskets<br />
and tighten the nuts to the torque values for the PVC<br />
piping in Table 3.3.15.<br />
For permeable fluids (such as nitric acid, hydrofluoric<br />
acid, or sodium hydrate at high temperatures), tighten<br />
the nuts according to the torque values in Table 3.3.16.<br />
CAUTION<br />
For a flowmeter with fluorocarbon PFA lining, it<br />
is possible that the nuts may loosen as time<br />
passes, so tighten them regularly. Be sure to<br />
tighten the nuts according to the prescribed<br />
torque values. Tighten them diagonally with the<br />
same torque values, step by step up to the<br />
prescribed torque value.<br />
*Piping-side flange<br />
*Gasket (two units)<br />
*: These items must be provided by the user.<br />
Choose nuts and bolts in compliance with<br />
the flange ratings.<br />
<strong>Flowmeter</strong>-side flange<br />
*Bolt<br />
*Nut<br />
F0313.EPS<br />
Figure 3.3.5<br />
Mounting Procedure for Flange Type (size: 2.5 mm (0.1 in.) to 400 mm (16 in.))<br />
3-15<br />
IM 01E20D01-01E
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