進口SMC氣動用壓力開關，乾拓低價SMC壓力開關 1. Do not use in an environment, where water or  oil is splashed. Because it is the open type construction. If water or oil were to make an ingress, the electrical circuit would be corroded and result in a malfunction or  2. Operating fluids are either air or inert gas exclusively. Never use liquids. 3. Never use in an environment where flammable fluid or gas is used. Use of this product near flammable materials could cause an explosive situation. This 1. Turn the adjusting screw on the cover to set the pressure with a flat head screwdriver. Fix the screw with locking nut after adjusting. Hysteresis is a fixed value. Increase the setting value by turning to “+” (H) side. Decrease the setting value by turning to “–” (L) side. 2. Use a flat head screwdriver to set the pressure. Then, lock it in place with the lock nut. Otherwise the set pressure will change. 3. The hysteresis (the ON-OFF range) is fixed. 4. Set pressure scale is the value when pressure increases.