PS71 GEMS | Alldatasheet
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Technical content
Visit www.GemsSensors.com for most current information. B 2.20˝ (56) 2.87˝ (73) ADJUSTMENT SCREW UNDER CAP SCREW RED, NO. GREEN, NC. BLACK, COM. 2.45˝ (62) ø1.25˝ (ø32) 1.84˝ (47) ADJUSTMENT SCREW UNDER CAP SCREW OPTIONAL PORT THREAD SIZES SEE ORDERING DATA 2.80˝ (71) 2.36˝ (60) 1.75˝ (38) 1-1/8˝ AF (28) SPDT Shown PS71 Series / p1of2 / 07-MAY-14 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 Switch SPST; SPDT Repeatability See Table 1 Wetted Parts Diaphragm Nitrile (optional EPDM, Viton® or Neoprene) Fitting Zinc-Plated Steel (Optional 316 SS) Conduit with Flying Leads IP65; IP option IP66 Proof Pressure 6000 psi (414 bar) Burst Pressure 9000 psi (621 bar) Approvals CE, UL Approved units available Weight, Approximate 0.4 lbs. (0.15 kg) Dimensions Options Selected Diaphragm Material No option, -10A, -SP or -RD -RD or -RD and -G -SP or -10A Nitrile 15°F to 185°F (-9°C to +85°C) 15°F to 250°F (-9°C to +121°C) 15°F to 212°F (-9°C to +100°C) Viton® 0°F to 185°F (-18°C to +85°C) 0°F to 250°F (-18°C to +121°C) 0°F to 212°F (-18°C to +100°C) EPDM -10°F to +185°F (-23°C to +85°C) -10°F to +250°F (-23°C to +121°C) -10°F to +212°F (-23°C to +100°C) Neoprene -10°F to +185°F (-23°C to +85°C) -10°F to +250°F (-23°C to +121°C) -10°F to +212°F (-23°C to +100°C) Note: Switches may function below the cold temperature limit but the set points and deadband will increase. Consult factory for details. Options Selected AC DC No option or -RD 5 amps @ 125/250 Volts 5 amps resistive, 3 amps inductive @ 28 Volts -G only or -RD with -G 1 amp @ 125 Volts 1 amp resistive, 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 — Recommended Operating Temperature Limits Electrical Switch Ratings DIN 43650A with Cable Clamp Flying Lead IP66 Option Right Angle DIN 43650A with Cable Clamp
Visit www.GemsSensors.com for most current information.PS71 Series / p2of2 / 07-MAY-14 MINIATURE
1 Pressure Range Code
Insert Pressure Range Code from Table 1, below.
2 Pressure Fitting1
-2MNZ = 1/8˝ NPTM -4MNZ = 1/4˝ NPTM -8MNZ = 1/2˝ NPTM -2MGZ = 1/8˝ BSPM (G type) -4MGZ = 1/4˝ BSPM (G type) -4MSZ = 7/16˝-20 SAE Male -6MSZ = 9/16˝-18 SAE Male -M10Z = M10 x 1.0, Straight -M12Z = M12 x 1.5, Straight -M14Z = M14 x 1.5, Straight
316 Stainless Steel
-2MNS = 1/8˝ NPTM -4MNS = 1/4˝ NPTM -2MGS = 1/8˝ BSPM (G type) -4MGS = 1/4˝ BSPM (G type)
3 Circuit
-A = SPST/N.O. -B = SPST/N.C. -C = SPDT
4 Electrical Termination
-SP = Spade Terminals2 -FLXX = Flying Leads3 -FLSXX = Flying Leads w/PVC Shrink Tubing3 -ELXX = 1/2˝ NPT Male Conduit w/Flying Leads4 -CABXX = 18 AWG PVC Cable5 -H = DIN 43650A Male Half Only6 -HR = Right Angle DIN 43650A Male Half Only6 -HC = DIN 43650A 9mm Cable Clamp6 -HCR = Right Angle DIN 43650A 9mm Cable Clamp6 -HN = DIN 43650A with 1/2˝ Female NPT Conduit6 -HNR = Right Angle DIN 43650A with 1/2˝ Female NPT Conduit6
5 Options 7
-V = Viton® Diaphragm -E = EPDM Diaphragm -N = Neoprene Diaphragm -10A = 10A @ 125/250 VAC Max. Rating -G = Gold Contacts (for loads less than 12 mA @ 12 VDC) -RD = Reduced Differential (25% reduction typical) -IP = Ingress Protection8 -OF = Oil Free Cleaned9 -R = Restrictor (low damping coefficient) Brass -SR = Spiral Restrictor (high damping coefficient)
300 Series Stainless Steel10
-WF = Weather Pack Connector, Female -WM = Weather Pack Connector, Male -DE = Deutsch Connector, Male, DT04 Series
6 Fixed Set Point (optional)
A. Specify set point -FS (in PSI or BAR, see example)11 B. Set Point Actuation R on Rising Pressure F on Falling Pressure Example: -FS2BARF for 2 BAR Falling or -FS20PSIR for 20 PSI Rising Notes: 1. Other fittings available. Consult factory. 2. 20% increase in deadband typical. 3. 18˝ is standard. Specify lead length in inches (max. 48˝). e.g. -FL18 or -FLS30. 4. 18˝ is standard. Specify lead length in inches (max. 48˝). e.g. -EL18 or -EL30. 5. 36˝ is minimum. Specify cable length in inches. e.g. -CAB36 or -CAB120. 6. DIN connectors require -C SPDT circuit. 7. Options -10A, -G or -RD cannot be combined. 8. Ingress Protection is available only with -FL, -FLS or -CAB Electrical Termination choices. Ingress Protection requires Fixed Set Point -FS. 9. Requires stainless steel housing. 10. -SR will result in wider deadbands and slower response time. 11. Set Point must be within Pressure Range selected in Step 1. Pressure Range Code Pressure Range Accuracy* Average Deadband** 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 * Accuracy 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. Table 1 — Pressure Range Codes PS71 -10 -4MNZ -C -H -XX -XXXX 1 2 3 4 5 6 How To Order Use the Bold characters from the chart below to construct a product code. Please reference Notes.