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. Dimensions Specifications Switch Repeatability Wetted Parts Diaphragm Material Fitting Electrical Termination SPST; SPDT See Table 1 FLYING LEAD Nitrile (optional EPDM, Viton(R) or Neoprene) Brass (optional 316 Stainless Steel) DIN 43650A IP65; Terminals IP00; Flying Leads IP65; Option IP: IP66; Conduit with Flying Leads IP65 350 psi (24 bar) 700 psi (48 bar) CE, UL Approved units available Brass: 0.3 lbs. (0.14 kg) Proof Pressure Burst Pressure Approvals Weight, Approximate o1.10 (o28) 3/32 or 1/8 ALLEN WRENCH ADJUSTMENT SCREW 1.58 (40) PRESSURE PORT RED, NO. GREEN, NC. BLACK, COM. INGRESS PROTECTION OPTION (IP66) WITH FLYING LEADS FACTORY SET ONLY o1.25 (o32) Recommended Operating Temperature Limits Options Selected No option, -10A, -SP or -RD -RD or -RD and -G -SP or -10A Nitrile 15F to 185F (-9C to +85C) 15F to 250F (-9C to +121C) 15F to 212F (-9C to +100C) Viton(R) 0F to 185F (-18C to +85C) 0F to 250F (-18C to +121C) 0F to 212F (-18C to +100C) EPDM -10F to +185F (-23C to +85C) -10F to +250F (-23C to +121C) -10F to +212F (-23C to +100C) Neoprene -10F to +185F (-23C to +85C) -10F to +250F (-23C to +121C) -10F to +212F (-23C to +100C) Diaphragm Material 2.20 (56) 1.95 (50) Note: Switches may function below the cold temperature limit but the set points and deadband will increase. Consult factory for details. PRESSURE SWITCHES Options Selected AC DC No option or -RD 5 amps @ 125/250 Volts 5 amps resistive, 3 amps inductive @ 28 Volts -G or -RD with -G 1 amp @ 125 Volts 1 amp resistive, 0.5 amp inductive @ 28 Volts -SP with -G DIN 43650A RIGHT ANGLE DIN (HNR) Electrical Switch Ratings -SP without -G 1.10 (28) DIN 43650A - MALE HALF ONLY 10.1 amps @ 125/250 Volts -- 2 amps @ 125/250 Volts -- ADJUSTMENT SCREW UNDER CAP SCREW PRESSURE PORT DIN 43650-HNR B 2.80 (71) 1.78 (45) 2.14 (54) I-9 Visit www.GemsSensors.com for most current information. 1.12 AF (28) miniature How To Order Use the Bold characters from the chart below to construct a product code. Please reference Notes. 1 1 Pressure Range Code Insert Pressure Range Code from Table 1, below. 2 Pressure Fitting1 Brass -2MNB = 1/8 NPTM -4MNB = 1/4 NPTM -2MGB = 1/8 BSPM (G type) -4MGB = 1/4 BSPM (G type) -4MSB = 7/16-20 SAE Male -6MSB = 9/16-18 SAE Male 316 Stainless Steel -2MNS = 1/8 NPTM -4MNS = 1/4 NPTM -4MGS = 1/4 BSPM (G type) -4MSS = 7/16-20 SAE Male 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 2 3 -H 4 -XX -XXXX 5 5 Options7 -V = Viton(R) Diaphragm -N = Neoprene Diaphragm -E = EPDM 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 -OXY = Oxygen Cleaned -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)9 B. Set Point Actuation R on Rising Pressure F on Falling Pressure Example: -FS0.5BARF for 0.5 BAR Falling or -FS5PSIR for 5 PSI Rising 6 Notes: 1. Other fittings available. Consult factory. 2. Requires -10A or -G option. (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. Set Point must be within Pressure Range selected in Step 1. 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. Visit www.GemsSensors.com for most current information. PRESSURE SWITCHES PS41 -10 -4MNB -C I-10