Azbil PTG71, Руководство пользователя

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Installation Azbil Corporation
2-2 Model PTG71 / 72 - Smart Pressure Transmitter
2-2 : Installing screw-mount transmitters (model PTG__G, PTG__B,
PTG__A)
Safety precautions
CAUTION
• After the PTG Transmitter is installed, do not use it as a foothold or any other
improper purpose. Doing so may result in damage to equipment and/or physical
injury.
• Hitting the glass portion of the indicator with a tool may break the glass and/
or cause physical injury. Caution must be exercised if your PTG Transmitter is
equipped with an optional digital indicator.
• Be careful when installing the transmitter if the process fluid temperature is high.
The heat of the fluid and/or the heat radiated from the piping may raise the surface
temperature of the Transmitter very high.
Installation precautions
• When installing the Transmitter, position and secure the gasket so that it does
not protrude from where the Transmitter is connected to the process (where an
adapter flange is coupled to a connecting pipe). If the gasket sticks out, liquid
leakage or output error may result.
• Do not use the Transmitter under any other operating conditions than specified
in the product specifications (i.e., rated pressure, connection standard, rated
temperature, rated vibration and rated humidity). Using this product under
incorrect operating conditions may cause damage to the product and leakage that
could lead to a a major accident.
• Wiring work in hazardous area should be performed carefully by following the
work methods specified in the explosion-protection guidelines.
• Connect the Transmitter to a good ground. If it is not grounded or the ground is
inadequate, output error will occur. Not grounding the transmitter is a violation
of regulations. Be careful of your footing during installation. Always wear safety
shoes.
• This product can be installed directly on the pipe (direct mounting), on a 2-inch
pipe with the mounting brackets (optional part), or on a wall.
• Connecting pipe arrangement
•
Piping conditions differ depending on the process.
Liquid: Establish a tap alongside the line and install the Transmitter next to or
beneath the tap to allow gas to return to the inside of the process line.
Gas: Establish a tap on top of or alongside the line and install the Transmitter
next to or above the tap to allow liquid to return to the inside of the
process line.
Steam: Establish a tap alongside the process line and install the Transmitter
beneath that tap to allow condensation to return through the connecting
pipe.