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“O” ring 1 Sealed liquid Sensor chip Fitting Stainless steel diaphragm 1 5 3 SUS 316L Fluoro-rubber Silicone oil Silicone SUS 316 INTERNAL STRUCTURE PS8 /g79/g3Solidstate pressure switch with no mechanical moving parts /g79/g3High corrosion resistance by double diaphragm structure /g79/g3Two pressure setting points /g79/g3Wide pressure medium compatibility ˙ FEATURES ˙ MODEL NUMBER DESIGNATION P S 8 - 1 0 2 G Series name Rated pressure range 102ɿ0 ~ 98.1 kPa {0 ~ 1 kgf/cm2} 352ɿ0 ~ 343 kPa {0 ~ 3.5 kgf/cm2} 103ɿ0 ~ 981 kPa {0 ~ 10 kgf/cm2} Pressure reference GɿGauge VɿGauge (Vacuum) PRESSURE SWITCHES PS8 Pressure reference Gauge Rated pressure range G 3/8(PF 3/8) Pressure port ˙LIST OF MODEL NUMBERS PS8-102G PS8-352G PS8-103G PS8-102V /g75 Verify the above model numbers when placing orders.
No. of output Output interface Setting method Adjustable range NPN open collector output Adjustable by VR 10 ~ 100 % of rated pressure Accuracy 0 ~ 50 °C (Reference temp.: 25 °C) Hysteresis Switching capacity Residual voltage Response
30 V DC 80 mA maximum
0.8 Approx. 2 V maximum ms ± 3 2% F.S. maximum % F.S. Display Red LED (lighted when output is ON.) Switch output PS8 PRESSURE SWITCHES General specificationsݯ Power ˙ STANDARD SPECIFICATIONS Item Pressure reference Rated pressure range Maximum pressure Break-down pressure Operating temp. range Compensated temp. range Storage temp. Operating humidity Supply voltage Pressure medium Insulation resistanca Dielectric strength Sealed liquid Pressure port Net weight Model number PS8 102G 102V 352G 103G Gauge Corrosive gases/liquids compatible with SUS 316L or SUS 316 Approx. 120 12 ~ 24 ± 10 % 100 (500 V DC)
500 V AC, 60 s
ʢLeakage current 1mA maximumʣ Silicone oil G 3/8 (PF 3/8) ˞ 0 ~ 50 35 ~ 85ʢNo condensationʣ − 20 ~ 70ʢAtmospheric pressure humidity 65 %RH maximumʣ − 20 ~ 70 kPa {kgf/cm2} kPa {kgf/cm2} kPa {kgf/cm2} %RH MΩ minimum g V DC Ripple content Consumption current 10 % (P-P) maximum 20 mA maximum maximum ˞ : An “O” ring is supplied as accessory. (P18). /g79/g3Unless otherwise specified, the specs are defined at an ambient temperature of 25 ± 5 °C and excitation voltage of 12 V DC.
S.Output1Main circuit Power B Sensor Common Shield S.Output2 Load 2 ̡̙̚ɹIndicator1 Pressure (50.2) 11 11 28.2 )( Aluminum with alumite finishHousing 4-core shielded cable L = 600 +100 ( 3.6) AWG26φ G 3/8 (PF 3/8) (SUS 316) φ Stainless steel diaphragm (SUS 316L) “0” ring (P 18) Fluoro – rubber P 1 P 2 Indicator LED 1 Indicator LED 2 Setting VR 1 Setting VR 2 OFF Hysteresis Set value Hysteresis Set value–98.1 kPa Rated pressure10 % of rated pressure–9.8 kPa ON OFF ON ˞2 switches show same performance. PS8 PRESSURE SWITCHES ˙ ENVIRONMENTAL CHARACTERISTICS Test item Test conditions (At 25 ± 5 °C) Permissible change Vibration 10 ~ 500 Hz, 1.5 mm maximum/98.1 m/s2, 3 directions for 2 hours each 981 m/s2, 3 directions for 3 times each 0 ~ Rated pressure, 106 cycles 40 °C, 90 ~ 95 %RH, 240 hrs. Switch output setting: ± 1 %F .S. maximum Shock Pressure cycling Moisture resistance ˙ INTERNAL ELECTRICAL SCHEMATICS ˙ OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ± 0.5 (Unit: mm) /g79PS8 /g79/g3PS8-102V /g79/g3PS8- ˎˎˎG Wire color Red Green White Black Shield Connection Power B Output 1 Output 2 Common Fitting ˙ SWITCHING OPERATION Extra care should be taken with the diaphragm part. Do not touch the diaphragm directly to avoid damaging the diaphragm.