Tube
Atmospheric
vent port
Series
ZSE40A(F)/ISE40A
Specific Product Precautions 1
Be sure to read before handling.
Refer to back pages 1 and 2 for Safety Instructions, “Handling Precautions for SMC
Products” (M-E03-3) for Pressure Switches Precautions.
1. Do not drop, bump, or apply excessive impacts (100
m/s
2
) while handling. Although the body of the
sensor may not be damaged, the internal parts of the
sensor could be damaged and lead to a malfunction.
2. The tensile strength of the cord is 49 N. Applying a
greater pulling force on it can cause a malfunction.
When handling, hold the body of the sensor––do not
dangle it from the cord.
3. Do not exceed the screw-in torque of 7 to 9 N·m when
connecting the pipe to the switch. Exceeding this
torque may cause the switch to malfunction.
4. Do not use pressure sensors with corrosive and/or
flammable gases or liquids.
Caution
Handling
Caution
Connection
1. Incorrect wiring can damage the switch and cause a
malfunction or erroneous switch output.
2. Connections should be done while the power is
turned off.
3. Wire separately from power lines and high voltage
lines, avoiding wiring in the same conduit with these
lines. Malfunctions may occur due to noise from
these other lines.
4. If a commercial switching regulator is used, make
sure that the F.G. terminal is grounded.
Caution
1. This pressure switch is CE marked; however, it is not
equipped with surge protection against lightning.
Lightning surge countermeasures should be applied
directly to system components as necessary.
2. This pressure switch does not have an explosion
proof rating. Never use in the presence of an explo-
sive gas as this may cause a serious explosion.
Operating Environment
Warning
Operating Environment
1. Do not use the product in a place where it could be
splashed by oils or solvents.
2. When this pressure switch is used in a place where
water and dust splash on, water and dust may enter
inside the switch through the atmospheric vent port.
Insert a ø4 tube (I.D. ø2.5) into the atmospheric vent
port, and bring piping of the opposite side up to the
safe position to keep it from water and dust. Do not
bend the tube or close the hole of it. It causes
malfunction with the measurement of positive
pressure.
∗
Make sure that the tube is inserted to the end of the atmospheric
vent port.
∗
Use SMC tubing, TU0425. (Material: Polyurethane, Tube O.D.
ø4, I.D. ø2.5)
To the safe position to keep
from water and/or dust.
3. Take measures against static electricity with
equipment when this switch is used in connection
with resin piping. Also, the ground should be
separate from that of the units that generate strong
electromagnetic noise or high frequency, otherwise,
the switch can be damaged by static electricity.
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