Reference Manual
00809-0100-4792, Rev CA
August 2010
Rosemount 1495, 1496
2-2
RECEIVING AND
INSPECTION
Rosemount 1495 Orifice Plates, 1496 Flange Unions are available in different
models and with different options, so it is important to inspect and know which
model you have before beginning installation.
Upon receipt of the shipment, check the packing list against the material
received and the purchase order. Report any damage to the carrier.
INSTALLATION
CONFIGURATION
The Orifice Flowmeter Assembly must be installed in the proper orientation
relative to the pipe and the fluid measured.
Gas Applications
Mount hardware upward to allow moisture to drain out and not fill the impulse
piping:
• Slope impulse piping at least one inch per foot (8 centimeters per
meter) downward from the transmitter toward the process connection.
Liquid Applications
Mount hardware downward to allow the escape of trapped vapor in the
impulse piping:
• Slope impulse piping at least one inch per foot (8 centimeters per
meter) upward from the transmitter toward the process connection.
• Vent all gas from the liquid piping legs.
• Prevent sediment deposits in the impulse piping.
• Keep the liquid head balanced on both legs of the impulse piping.
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