LED Varistor SOL.A (+) (.) Indicator light A side Indicator light B side Caution Caution Internal Wiring Specifications Light/surge voltage suppressor No polarity by adopting non-polar light. Note) Coil surge voltage generated when OFF is about .60 V. Please contact SMC separately for further suppression of the coil surge voltage. Surge Voltage Intrusion Series S0700 Specific Product Precautions 3 Be sure to read this before handling. Refer to the back cover for Safety Instructions. For 3/4/5 Port Solenoid Valve Precautions, refer to “Handling Precautions for SMC Products” and the Operation Manual on SMC website, http://www.smcworld.com The surge voltage created when the power supply is cut off could apply to the de-energized load equipment through the output circuit. In cases where the energized load equipment has a larger capacity (power consumption) and is connected to the same power supply as the product, the surge voltage could malfunction and/or damage the internal circuit element of the product and the internal device of the output equipment. To avoid this situation, place a diode which can suppress the surge voltage between the COM lines of the load equipment and output equipment. Tube attachment/detachment for One-touch fittings 1) Tube attachment 1. Take a tube having no flaws on its periphery and cut it off at a right angle. When cutting the tube, use tube cutters TK-1, 2 or 3. Do not use pinchers, nippers or scissors, etc. If cutting is done with tools other than tube cutters, the tube may be cut diagonally or become flattened, etc., making a secure installation impossible. Allow some extra length in the tube. 2. The outside diameter of the polyurethane tube swells when internal pressure is applied to it. Therefore, it may be possible that the tube cannot be re-inserted into the One-touch fitting. Check the tube outside diameter, and when the accuracy of the outside diameter is +0.07 mm or larger for o2, +0.15 mm or larger for other sizes, insert into the One-touch fitting again, without cutting the tube to use it. When the tube is reinserted into the One-touch fitting, confirm that the tube goes through the release button smoothly. 3. Grasp the tube, slowly push it straight (0 to 5°) into the Onetouch fitting until it comes to a stop. 4. After inserting the tube, pull on it lightly to confirm that it will not come out. If it is not installed securely all the way into the fitting, this can cause problems such as air leakage or the tube pulling out. 2) Tube detachment 1. Push in the release button sufficiently, pushing its collar equally around the circumference. 2. Pull out the tube while holding down the release button so that it does not come out. If the release button is not pressed down sufficiently, there will be increased bite on the tube and it will become more difficult to pull it out. 3. When the removed tube is to be used again, cut off the portion which has been chewed before reusing it. If the chewed portion of the tube is used as is, this can cause trouble such as air leakage or difficulty in removing the tube. One-touch Fittings Do not apply unnecessary forces such as twisting, pulling, moment loads, vibration and impact, etc. on fittings or tubing. A force of 20 N or more applied to the fitting and/or tube can cause damage to the valve and/or fitting, crushing, bursting, or detachment of tubing, or air leakage. 28