CKD PPX Series User Manual

Pneumatic components (electronic pressure switch and sensors)
Design & Selection
Always read this section before starting use.
Refer to "Pneumatic, vacuum and auxiliary components CB-024SA".
Safety precautions
WARNING
Usethisproductinaccordancewithspecications.
Applications, load current, voltage, temperature, shock and
workingenvironment,etc.exceedingthespecications
range could lead to destruction and malfunction of
peripheral equipment.
Do not use oxygen, corrosive or combustible gas,
ortoxicuidforthisproduct.
The pressure switch is not explosion proof. Do not use
thisproductinammableatmosphere,orexplosionscould
occur.
Donotusethisproductinammableatmosphere
The internal pressure in the closed chamber could change
iftheuidleaksinanaccident.Usethisproductinthe
control box with safety device to control internal pressure,
or indoors with no pressure differential from the outside.
Do not install the product in completely sealed
enclosure.
Power supply voltage
Usetheproductwithinthespeciedpowersupplyvoltage
range.Ifvoltageexceedingspeciedrangeisapplied,or
current power (100 V AC) is applied, circuit damage could
occur.
Load short circuit
Do not short-circuit the load, or circuit damage could occur.
Incorrect wiring
Avoid incorrect wiring such as connecting to the wrong electrode
of the power source, etc., or the circuit damage could occur.
CAUTION
Applicableuid
Whenusingapplicableuidotherthanair;nitrogengas,etc.,
oxygendeciencycouldbecaused.Observethefollowing
instructions.
Use this product in well ventilated location.
Ventilate the work area when nitrogen gas is being used.
Inspect piping regularly, so nitrogen gas does not leak.
Non-corrosive gas is materials in the air (nitrogen, carbon
dioxide) and inactive gas (argon, neon).
To use for pressed air including water and oil, use
PPD(3)-Stype(stainlessdiaphragmsensorspecications),
which has higher corrosion resistance.
Ifthisproductisusedforvacuumsuctionconrmation,
care must be taken for following matters.
The pressure exceeding withstanding pressure in the
specicationsmustnotbeappliedtotheproductifpositive
pressure of vacuum break is applied.
Working environment
Avoid use in the place that vibration or shock not less than
100m/s
2
is applied.
21
Care must be taken in not exceeding ambient temperature
range including piping area.
Do not use the product in locations that water or oil may contact the products.
Considering errors, etc. caused by precision/
temperature characteristics, decide the setting.
When a pressure switch is used for interlock signals
requring high reliability, provide mechanical guards for a
failure, or provide dual interlock as a switch (sensor) other
than pressure switch. Conduct inspection regularly to
check that the normal operation is done.
Care must be taken when this product is used in an
interlock circuit.
Responsiveness is adversely affected depending
on working pressure and capacity of loads. Install a
regulator before the sensor if stable reproducibility
is required.
Use conditions to comply with CE marking
PPX Series is CE marked products complied with EMC
directive. EN61000-6-2 regulation matched to immunity
applies to this product. Conditions below are necessary to
comply with these standards.
Conditions
Length of power line connected to the sensor must be less than 10m.
ProvidealinelterinACpowerline.
Do not share power with an inverter or components
causing motor noise, etc.
Remove noise from inductive load (such as solenoid valve
and relay) with a surge suppressor such as CR or diode in
the source side.
When using components (such as switching regulator
and inverter motor) causing noise around the sensor
installation section, ground a frame ground (F.G.) terminal
of components.
Keep distance between a line connected to sensors and
strongmagneticeld.
Connect to sensors with shield wire.
Connect shield wire to the ground of power side.
Take the following countermeasures to prevent
malfunction caused by noise.
When the secondary side control pressure is
released to atmosphere as air blow, pressure may
uctuatedependingonpipingandblowconditions.
Execute a test under actual working conditions or
contact to CKD.
Selecttheproductwhoseowisnotlessthanthe
total of that used for sensors when selecting a
dryer,anairlter,anoilmistlterandaregulator.

CKD PPX Series Specifications

General

Brand	CKD
Model	PPX Series
Category	Accessories
Language	English