Operation Environment
1. Never use in an atmosphere with explosive gases.
The structure if auto switches is not intended to prevent explosion. This may lead to explosion hazard.
Please contact SMC concerting ATEX compliant products.
1. Do not use in an area where a magnetic field is generated.
Auto switches will malfunction or magnets inside rotary actuator will become demagnetized. (Please
consult with SMC if a magnetic field resistant auto switch can be used.)
2. Do not use in an environment where the auto switch will be continually exposed to water.
Although auto switches satisfy IEC standard IP67 construction expect some models (D-A3
□
, A44
□
,
G39
□
, K39
□
, RNK, RPK) do not use auto switches in applications where continually exposed to water
splash or splay. This may cause improper insulation or malfunction.
3. Do not use in an environment with oil or chemicals.
If auto switches are used in an environment containing coolant, cleaning solvent, various oils, or
chemicals even for a short period of time, this may adversely affect the auto switches, resulting in
improper insulation, malfunction due to swelling of the potting resin, or hardening of the lead wires.
4. Do not use in an environment with temperature cycles.
If temperature cycles other than normal temperature changes are applied, this may adversely affect the
insides of the auto switches.
5. Do not use in an area where surges are generated.
<Solid state>
If there is an equipment unit (electromagnetic lifter, high-frequency induction furnace, motor, or radio,
etc.) that generates large surges or electromagnetic waves around cylinders with solid state auto
switches or actuators, this may cause the circuit element inside the auto switch to break.
6. Avoid accumulation of iron waste or close contact with magnetic substances.
If many iron particles, such as cutting chips or spatters accumulate around a cylinder with the auto
switches or an actuator or if a magnetic substance (attracted by a magnet) is put close to a cylinder with
the auto switch or an actuator, the magnetic force inside the cylinder or actuator loses, causing the auto
switch to malfunction.
7. Please contact SMC concerning water resistance, elasticity of lead wires, usage at welding
sites, etc.
8. Do not use in direct sunlight.
9. Do not mount the product in locations where it is exposed to radiant heat.
10. Take appropriate measures against the lightning surge on the equipment side as the auto
switches do not have any lightning surge resistance specified in the CE marking.
-15-
Warning
Caution
2020-10-13 10:43
DI987004
