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•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.
•Design the system to prevent reverse current when the product is forced to operate for operational check.
Depending on the circuit used, insulation may not be maintained when operation is forced, allowing reverse current
to flow, which can cause malfunction and damage the product.
•Keep wiring as short as possible to prevent interference from electromagnetic noise and surge voltage.
Do not use a cable longer than 30 m.
Wire the DC(-) line(blue) as close as possible to the power supply.
•
When analog 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 switch, this may cause deterioration or breakage of the internal circuit of
the Pressure switch. Avoid sources of surge generation and crossed lines.
•Do not use a load which generates surge voltage.
When a surge-generating load such as a relay or solenoid is driven directly, use a load with a built-in surge
suppressor.
•The product is CE/UKCA 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 switch.
Take proper measures for the remnant not to enter the Pressure switch 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 -5 to 50 °C. Operation under low temperature (5 °C or less) 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.
•Use operating fluid which does not corrode the part in contact with fluid which is made of SUS630 (for
sensing part) or SUS304 (for fitting part).
(Compatibility between fluid and material can be checked by contact to fluid supplier.)
•When resin piping is used, depending on the fluid, static electricity may occur. When connecting the
switch and sensor, please take adequate anti-static electricity measures on the equipment side, and do
not use with a grounding that is shared with equipment that generates strong electromagnetic noise or
high-frequency waves.
This can result in a switch or sensor being damaged by static electricity.
-8-
No.PS※※-OMU0009-F
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