SMC Networks PSE550 Operation Manual - page 7
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No.PS※※-OMG0009-C
Wiring
Do not pull the lead wires.
In particular, never lift a Pressure Sensor equipped with fitting and piping by holding the lead wires.
Avoid repeatedly bending or stretching the lead wire, or placing heavy load on them.
Repetitive bending stress or tensile stress can cause the sheath of the wire to peel off, or breakage of the wire.
If the lead wire can move, fix it near the body of the product.
The recommended bend radius of the lead wire is 6 times the outside diameter of the sheath, or 33 times the
outside diameter of the insulation material, whichever is larger.
Replace the damaged lead wire with a new one.
Wire correctly.
Incorrect wiring can break the Pressure Sensor.
Do not perform wiring while the power is on.
Otherwise damage to the internal parts can result, causing malfunction.
Do not route wires and cables together with power or high voltage cables.
Otherwise the product can malfunction due to interference of noise and surge voltage from power and high
voltage cables to the signal line. Route the wires (piping) of the product separately from power or high voltage
cables.
Confirm proper insulation of wiring.
Poor insulation (interference from another circuit, poor insulation between terminals, etc.) can lead to excess
voltage or current being applied to the product, causing damage.
Keep wiring as short as possible to prevent interference from electromagnetic noise and surge voltage.
Do not use a cable longer than 10 m.
Wire the DC(-) line(blue) as close as possible to the power supply.
When analogue output is used, install a noise filter (line noise filter, ferrite element, etc.) between the
switch-mode power supply and this product.
Environment
Do not use the product in area that is exposed to corrosive gases, chemicals, sea water, water or
steam.
Otherwise failure or malfunction can result.
Do not use in a place where the product could be splashed by oil or chemicals.
If the product is to be used in an environment containing oils or chemicals such as coolant or cleaning solvent,
even for a short time, it may be adversely affected (damage, malfunction, or hardening of the lead wires).
Do not use in an area where surges are generated.
If there is equipment which generates a large amount of surge (solenoid type lifter, high frequency induction
furnace, motor, etc.) close to the Pressure Sensor, this may cause deterioration or breakage of the internal circuit
of the Pressure Sensor. Avoid sources of surge generation and crossed lines.
The product is CE marked, but not immune to lightning strikes. Take measures against lightning strikes
in the system.
Mount the product in a place that is not exposed to vibration or impact.
Otherwise failure or malfunction can result.
Prevent foreign matter such as remnant of wires from entering the Pressure Sensor.
Take proper measures for the remnant not to enter the Pressure Sensor in order to prevent failure or malfunction.
Do not use the product in an environment that is exposed to temperature cycle.
Heat cycles other than ordinary changes in temperature can adversely affect the inside of the product.
Do not expose the product to direct sunlight.
If using in a location directly exposed to sunlight, shade the product from the sunlight.
Otherwise failure or malfunction can result.
Keep within the specified fluid and ambient temperatures range.
The fluid and ambient temperatures should be 0 to 50 °C. Operation under low temperature leads to cause
damage or operation failure due to frozen moist in the fluid or air.
Protection against freezing is necessary. Air dryer is recommended for elimination of drain and water.
Avoid sudden temperature change even within specified temperature.
Do not operate close to a heat source, or in a location exposed to radiant heat.
Otherwise malfunction can result.