This series of four PASxx differential air flow switches are intended for use in air handling systems for the monitoring of air ducts, filters and fans.The enclosure is plastic with a rating of IP54. A set-point adjustment is provided under the clip-on clear plastic cover.Supplied complete with mounting adaptor ring, two straight duct probes and a 6-foot length of clear tubing.APPLICATIONS• High pressure monitoring• Vacuum pressure monitoring• Filter monitoring • Fan monitoringSPECIFICATIONS Easy cable lead-in Case geometry allows easy cable lead-inIntegrated cable strain reliefCable strain relief integrated in PG11 (DIN 40430)High accuracy High adjustment accuracy through individual laser etched scaleSnap cover User-friendly snap coverStable switching pointsLong-term stability of switching points through trapezoidal bead diaphragmPASXX SERIESMonitor Air Ducts, Filters and FansPASxxMediumAir and neutral gasesPressure rangeSee Ordering Information tableSet-point scaleInches WCTolerable overload on one side20 in. WC at -22 to +185 °FRepeatabilityPAS01±2.5 (0.01 in. WC)PAS02±5 (0.02 in. WC)PAS03±5 (0.02 in. WC)PAS04±5 (0.02 in. WC)Switching loadResistive load5 A at 250 Vac4 A at 30 VdcInductive0.8 A at 250 Vac0.7 A at 30 VdcMaterials in contact with the mediumCase: PC 10% GFCover: PCDiaphragm: Silicone LSR tempered 200 °C, free of gas emissionsOperating temperatureMedium/ambient-22 to +185 °F (-30 to +85 °C)Storage-40 to +185 °F (-40 to +85 °C)Service lifeMechanical > 106 = 1,000,000 switching cyclesElectrical connectionScrew terminals Cable gland type PG11 (DIN 40430) complete with cable strain reliefSwitch contact typeSPDT (change-over)Protection standardWithout coverIP00With coverIP54Pressure connectionsPipe Ø 6.2 mmTests/admissionsEU Conformity, Electromagnetic Compatibility:CE1 conformity according to EN 60730-2-6:2008Low Voltage Directive: 2014/35/EUGas Appliance Directive: 2009/142/ECPressure Sensing Devices for Gas Burners and Gas Burning Appliances: EN 1854:2010EU Directive on RoHS: 2011/65/EU WARRANTYLimited Warranty5 yearsAGENCY APPROVALS800.354.8556 | +1 503.598.4564 | sales@veris.com | intl@veris.comTMPressure Monitoring | Differential Air Pressure Switch HQ0006606.D 0917DIMENSIONAL DRAWINGWIRINGFUNCTIONALITYThe pressure switch has two separate pressure chambers, each with its own connection. The switch operates when the setpoint is either exceeded or not reached.Vacuum MonitoringConnect the pressure switch via P2. Do not connect P1. Leave P1 open. Make sure that debris cannot get into P1.High Pressure MonitoringConnect the pressure switch via Pa. Do not Connect P2. Leave P2 open. Make sure that debris cannot get into P2.Filter MonitoringConnect P1 before the filter and P2 after it.Fan MonitoringConnect P1 after the fan (in blowing direction) and P2 before the fan.1 = COM (Common) 2 = NC Contact (Normally Closed) 3 = NO Contact (Normally Open)ORDERING INFORMATION4 x hole PT - screw d1 = 3.0 mm (0.12 in.)*Hole for PT screws KA2591.4 (3.60)52 (2.05)80.8 (3.18)88 (3.46)53.7 (2.11)4.5 (0.18)53.7 (2.11)4.5 (0.18)15.5º56 (2.20)65 (2.56)44.4 (1.75)25 (0.98)22 (0.87)51 (2.01)6.2 (0.24)P2P178.5 (3.09)6 (0.24)3.4 (0.13)16 (0.63)6.5 (0.26)16 (0.63)8 (0.32)3.4 (0.13)60 (2.36)18 (0.71)9.1 (0.36)2.2 (0.09)*49.7 (1.96)PART NUMBERDESCRIPTIONPRESSURE RANGEPAS01Differential Air Pressure Switch0.08 to 1.2 in. WC (20 to 300 Pa)PAS020.2 to 2.0 in. WC (50 to 500 Pa)PAS030.4 to 4.0 in. WC (100 to 1000 Pa)PAS042.0 to 8.0 in. WC (500 to 2000 Pa)INSTALLATIONMounting:• Vertical with pressure connections facing downward (factory recommended)• Horizontal with cover facing downward (switching setpoint 0.4” WC lower than scale)• Horizontal with cover facing upward (switching setpoint 0.4” WC higher than scale)123Pressure Monitoring | PASxx SeriesHQ0006606.D 0917Next >