PRESSURE SWITCHES PS41 – Economical Miniature Pressure Switches  3.5 to 100 psi (0.24 to 7 bar) These miniature pressure switches are designed for demanding applications where space and/or price are strong concerns. The switches utilize a piston/diaphragm design, which incorporates the high proof pressure of piston technology with the sensitivity of diaphragm designs. Switches are field adjustable via an Allen head screw that is hidden to protect against unauthorized tampering. Specifications Dimensions Switch SPST; SPDT FLYING LEAD ø1.10˝ 3/32˝ or (ø28) Repeatability See Table 1 1/8˝ ALLEN Wetted Parts WRENCH ® ADJUSTMENT Diaphragm Material Nitrile (optional EPDM, Viton or Neoprene) SCREW Fitting Brass (optional 316 Stainless Steel) Electrical Termination DIN 43650A IP65; Terminals IP00; Flying Leads IP65; 1.58˝ PRESSURE (40) Option IP: IP66; Conduit with Flying Leads IP65 RED, NO. PORT GREEN, NC. Proof Pressure 350 psi (24 bar) BLACK, COM. Burst Pressure 700 psi (48 bar) Approvals CE, UL Approved units available INGRESS PROTECTION OPTION (IP66) ø1.25˝ WITH FLYING LEADS FACTORY SET ONLY Weight, Approximate Brass: 0.3 lbs. (0.14 kg) (ø32) Recommended Operating Temperature Limits Options Selected 2.20˝ No option, (56) Diaphragm Material -RD or -RD and -G -SP or -10A -10A, -SP or -RD 15°F to 185°F 15°F to 250°F 15°F to 212°F Nitrile (-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 1.10˝ ® DIN 43650A – MALE HALF ONLY Viton (28) (-18°C to +85°C) (-18°C to +121°C) (-18°C to +100°C) -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) DIN 1.95˝ 43650A (50) Note: Switches may function below the cold temperature limit but the set points and deadband will increase. Consult factory for details. RIGHT ANGLE DIN (HNR) Electrical Switch Ratings ADJUSTMENT SCREW UNDER CAP SCREW Options Selected AC DC 5 amps resistive, No option or -RD 5 amps @ 125/250 Volts 3 amps inductive @ 28 Volts 1 amp resistive, -G or -RD with -G 1 amp @ 125 Volts PRESSURE 0.5 amp inductive @ 28 Volts PORT DIN 43650-HNR -SP without -G 10.1 amps @ 125/250 Volts — -SP with -G 2 amps @ 125/250 Volts — B 2.80˝ 1.78˝ (71) (45) 2.14˝ 1.12˝ AF (54) (28) I-9 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. PS41 -10 -4MNB -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. -N = Neoprene Diaphragm 1 2. Requires -10A or -G option. 2 Pressure Fitting -E = EPDM Diaphragm (20% increase in deadband Brass typical) -10A = 10A @ 125/250 VAC Max. Rating -2MNB = 1/8˝ NPTM 3. 18˝ is standard. Specify lead -G = Gold Contacts -4MNB = 1/4˝ NPTM length in inches (max. 48˝). (for loads less than 12 mA @ 12 VDC) e.g. -FL18 or -FLS30. -2MGB = 1/8˝ BSPM (G type) -RD = Reduced Differential 4. 18˝ is standard. Specify lead -4MGB = 1/4˝ BSPM (G type) length in inches (max. 48˝). (25% reduction typical) -4MSB = 7/16˝-20 SAE Male e.g. -EL18 or -EL30. 8 -IP = Ingress Protection -6MSB = 9/16˝-18 SAE Male 5. 36˝ is minimum. Specify -OXY = Oxygen Cleaned cable length in inches. e.g. 316 Stainless Steel -WF = Weather Pack Connector, Female -CAB36 or -CAB120. 6. DIN connectors require -C -2MNS = 1/8˝ NPTM -WM = Weather Pack Connector, Male SPDT circuit. -4MNS = 1/4˝ NPTM -DE = Deutsch Connector, Male, DT04 Series 7. Options -10A, -G or -RD -4MGS = 1/4˝ BSPM (G type) cannot be combined. 6 Fixed Set Point (optional) -4MSS = 7/16˝-20 SAE Male 8. Ingress Protection is A. Specify set point -FS available only with -FL, -FLS 9 3 Circuit (in PSI or BAR, see example) or -CAB Electrical -A = SPST/N.O. B. Set Point Actuation Termination choices. Ingress Protection requires -B = SPST/N.C. R on Rising Pressure Fixed Set Point -FS. -C = SPDT F on Falling Pressure 9. Set Point must be within Example: -FS0.5BARF for 0.5 BAR Falling Pressure Range selected in 4 Electrical Termination or -FS5PSIR for 5 PSI Rising Step 1. 2 -SP = Spade Terminals 3 -FLXX = Flying Leads 3 -FLSXX = Flying Leads w/PVC Shrink Tubing 4 -ELXX = 1/2˝ NPT Male Conduit w/Flying Leads 5 -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 Cable 6 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 3.5-8 psi (0.24-0.55 bar) ±0.35 psi (0.024 bar) +2% of setting 1.50 psi (0.14 bar) +7% of setting 20 7-30 psi (0.48-2.07 bar) ±0.8 psi (0.055 bar) +2% of setting 3 psi (0.21 bar) +8% of setting 30 25-100 psi (1.7-6.9 bar) ±2.0 psi (0.138 bar) +2% of setting 5 psig (0.28 bar) +10% 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-10 Visit www.GemsSensors.com for most current information. PRESSURE SWITCHES