SMC Networks PSE575 Operation Manual page 6

■After maintenance is complete, perform appropriate functional inspections and leak tests.
Stop operation if the equipment does not function properly or there is a leakage of fluid.
When leakage occurs from parts other than the piping, the product might be faulty.
Disconnect the power supply and stop the fluid supply.
Do not apply fluid under leaking conditions.
Safety cannot be assured in the case of unexpected malfunction.
■Use within the specified operating pressure.
Otherwise it can cause damage to the Pressure Sensor or inability to measure correctly.
If fluid is supplied at a pressure exceeding the proof pressure, the ceramic diaphragm will be damaged. A significantly
damaged diaphragm will result in external leakage. In addition, the power supply is short circuited depending on the
applied fluid. Please use a power supply which includes short circuit protection.
■NOTE
○Follow the instructions given below when designing, selecting and handling the product.
●The instructions on design and selection (installation, wiring, environment, adjustment,
operation, maintenance, etc.) described below must also be followed.
Product specifications
Use the specified voltage.
Otherwise failure or malfunction can result.
Applicable fluid is a fluid that does not corrode C3604 + electroless nickel plated, AI203 (aluminum
oxide) and FKM.
Do not use a fluid containing chemicals, synthetic oils including organic solvent, salt and corrosive gases.
Otherwise, damage to the product and malfunction can result.
Check the details of the specifications before using.
Reserve a space for maintenance.
Allow sufficient space for maintenance when designing the system.
A ceramic diaphragm type pressure sensor is used in this product. The ceramic diaphragm can be
damaged by overpressure from hydraulic shock, which can be generated when condensate in the fluid
collides with the sensor during pressure fluctuation. This is also known as "water hammer".
To mitigate hydraulic shock, it is recommended to insert an orifice between the fluid and the sensor. A gas pocket
also needs to be between the orifice and the sensor to cushion the shock pulse. The sensor would then need to
be located above the orifice with the orifice mounted vertically so that no fluid gets between the orifice and sensor.
Some recommended and NOT recommended examples are shown in the following figure. Part
numbersZS-31-X175 or X188 are applicable orifices (called throttles in product literature).
Caution
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No.PS※※-OMT0006-B