B PRESSURE SWITCHES PS71 – General Purpose Mini Pressure Switches  10 to 5000 psi (0.7 to 344 bar) These versatile general purpose switches with snap action microswitches can be used in a wide range of hydraulic and pneumatic applications. Their proven piston/ diaphragm design offers outstanding accuracy over a very wide pressure range with an outstanding 6000 psi proof pressure. Their modular construction allows Gems to offer a large number of standard pressure fittings in two materials as well as numerous electrical ratings and terminations. Users can easily configure this model to meet their needs. Specifications Dimensions Switch SPST; SPDT Repeatability See Table 1 DIN 43650A WITH CABLE CLAMP Wetted Parts ® Diaphragm Nitrile (optional EPDM, Viton or Neoprene) Fitting Zinc-Plated Steel (Optional 316 SS) Electrical Termination DIN 43650A IP65; Spade Terminals IP00; Flying Leads IP65; 2.20˝ Conduit with Flying Leads IP65; IP option IP66 (56) Proof Pressure 6000 psi (414 bar) Burst Pressure 9000 psi (600 bar) 2.87˝ (73) Approvals CE, UL Approved units available Weight, Approximate 0.4 lbs. (0.15 kg) SPDT Shown FLYING LEAD VERSION ADJUSTMENT SCREW Recommended Operating Temperature Limits Options Selected 1.84˝ No option, Diaphragm Material -RD or -RD and -G -SP or -10A (47) -10A, -SP or -RD RED, NO. GREEN, NC. 15°F to 185°F 15°F to 250°F 15°F to 212°F Nitrile BLACK, COM. (-9°C to +85°C) (-9°C to +121°C) (-9°C to +100°C) 0°F to 185°F 0°F to 250°F 0°F to 212°F ® Viton IP66 OPTION ø1.25˝ (-18°C to +85°C) (-18°C to +121°C) (-18°C to +100°C) (ø32) -10°F to +185°F -10°F to +250°F -10°F to +212°F EPDM (-23°C to +85°C) (-23°C to +121°C) (-23°C to +100°C) -10°F to +185°F -10°F to +250°F -10°F to +212°F Neoprene (-23°C to +85°C) (-23°C to +121°C) (-23°C to +100°C) 2.45˝ (62) Note: Switches may function below the cold temperature limit but the set points and deadband will increase. Consult factory for details. Electrical Switch Ratings RIGHT ANGLE DIN 43650A WITH CABLE CLAMP Options Selected AC DC 5 amps resistive, No option or -RD 5 amps @ 125/250 Volts 3 amps inductive @ 28 Volts OPTIONAL PORT THREAD SIZES 1 amp resistive, -G only or -RD with -G 1 amp @ 125 Volts SEE ORDERING DATA 0.5 amp inductive @ 28 Volts -10A only or -SP without -G 10.1 amps @ 125/250 Volts — -SP with -G 2 amps @ 125/250 Volts — 2.80˝ (71) 1.75˝ (38) 2.36˝ (60) 1-1/8˝ AF ADJUSTMENT SCREW (28) UNDER CAP SCREW I-15 Visit www.GemsSensors.com for most current information. mInIaTURE How To Order Use the Bold characters from the chart below to construct a product code. Please reference Notes. PS71 -10 -4MNZ -C -H -XX -XXXX 1 2 3 4 5 6 7 Notes: 1 Pressure Range Code 5 Options 1. Other fittings available. ® Insert Pressure Range Code from Table 1, below. -V = Viton Diaphragm Consult factory. -E = EPDM Diaphragm 1 2. 20% increase in deadband 2 Pressure Fitting -N = Neoprene Diaphragm typical. 12L14 Zinc-Plated Steel 3. 18˝ is standard. Specify lead -10A = 10A @ 125/250 VAC Max. Rating -2MNZ = 1/8˝ NPTM length in inches (max. 48˝). -G = Gold Contacts -4MNZ = 1/4˝ NPTM e.g. -FL18 or -FLS30. (for loads less than 12 mA @ 12 VDC) 4. 18˝ is standard. Specify -2MGZ = 1/8˝ BSPM (G type) -RD = Reduced Differential lead length in inches (max. -4MGZ = 1/4˝ BSPM (G type) 48˝). e.g. -EL18 or -EL30. (25% reduction typical) -4MSZ = 7/16˝-20 SAE Male 5. 36˝ is minimum. Specify 8 -IP = Ingress Protection -6MSZ = 9/16˝-18 SAE Male cable length in inches. e.g. 9 -OXY = Oxygen Cleaned -CAB36 or -CAB120. 316 Stainless Steel -R = Restrictor (low damping coefficient) Brass 6. DIN connectors require -C SPDT circuit. -2MGS = 1/8˝ BSPM (G type) -SR = Spiral Restrictor (high damping coefficient) 7. Options -10A, -G or -RD 10 -4MNS = 1/4˝ NPTM 300 Series Stainless Steel cannot be combined. -4MGS = 1/4˝ BSPM (G type) -WF = Weather Pack Connector, Female 8. Ingress Protection is -WM = Weather Pack Connector, Male available only with -FL, -FLS 3 Circuit or -CAB Electrical -DE = Deutsch Connector, Male, DT04 Series -A = SPST/N.O. Termination choices. -B = SPST/N.C. 6 Fixed Set Point (optional) Ingress Protection requires Fixed Set Point -FS. -C = SPDT A. Specify set point -FS 9. Requires stainless steel 11 (in PSI or BAR, see example) 4 Electrical Termination housing. B. Set Point Actuation 2 10. -SR will result in wider -SP = Spade Terminals R on Rising Pressure deadbands and slower 3 -FLXX = Flying Leads response time. F on Falling Pressure 3 -FLSXX = Flying Leads w/PVC Shrink Tubing 11. Set Point must be within Example: -FS2BARF for 2 BAR Falling 4 -ELXX = 1/2˝ NPT Male Conduit w/Flying Leads Pressure Range selected in or -FS20PSIR for 20 PSI Rising 5 Step 1. -CABXX = 18 AWG PVC Cable 6 -H = DIN 43650A Male Half Only 6 -HR = Right Angle DIN 43650A Male Half Only 6 -HC = DIN 43650A 9mm Cable Clamp -HCR = Right Angle DIN 43650A 9mm 6 Cable Clamp 6 -HN = DIN 43650A with 1/2˝ Female NPT Conduit -HNR = Right Angle DIN 43650A with 1/2˝ Female 6 NPT Conduit Table 1 — Pressure Range Codes Pressure Range Code Pressure Range Repeatability* Average Deadband** 10 10-30 psi (0.7-2.1 bar) ±1.5 psi (0.103 bar) +2% of setting 3.5 psi (0.28 bar) +11% of setting 20 25-75 psi (1.7-5.2 bar) ±2.5 psi (0.172 bar) +2% of setting 3.5 psi (0.28 bar) +11% of setting 30 65-300 psi (4.5-20.7 bar) ±5.0 psi (0.345 bar) +2% of setting 20 psig (1.38 bar) +11% of setting 40 250-1000 psi (17.2-69.0 bar) ±15 psi (1.03 bar) +2% of setting 45 psig (3.10 bar) +12% of setting 50 1000-3000 psi (69-206.8 bar) ±30 psi (2.06 bar) +3% of setting 70 psig (4.83 bar) +12% of setting 60 2500-5000 psi (172.4-344.7 bar) ±50 psi (3.45 bar) +4% of setting 140 psi (9.65 bar) +13% of setting * Repeatability and set point of units may change due to the effects of temperature. ** These numbers are for the standard microswitch. With either the -SP or -10A option, the values are typically 20% greater than those listed. With the -RD option, the values will be typically 25% less than those listed. In certain applications deadband can be tailored and controlled to customer specifications. Consult factory for details. I-16 Visit www.GemsSensors.com for most current information. PRESSURE SWITCHES