AIR PROXIMITY SENSOR - okcc.com

1 APPLICATIONS High Speed Part Sensing: Rapidresponse time of SENSOR . Manufactured Parts: Counting, Gaging,Position, Presence. Containers and Packages: Counting,Motion, Presence. Die Protection: Part or Stock Presenceand Position. Machine Control: Cam Position, PartPosition, Stock Position. Paper, Film, Textile Sensing: Splice,Edge, Double Thickness Pressure: Up to 10 scfm @ 1 scfm @ 10 psigOutput Signal Pressure: See Output Pres-sure vs. Range Curves. Generally used totrigger air/air amplifier or air/electric Time: 1 millisecond (measuredat SENSOR output).Sensing Range: See Output Pressure Curves. Nominal maximum range is1/8 of Construction:Body Stainless SteelConnectors Brass, DelrinTubing PolyurethaneAir Supply Requirements: Dry air filtered to1 Target Size:Stationary ObjectsMinimum SizeCylinder1/8" " " " TargetsPulse DurationObject Size - In(sec) Approx.

2 = Object Velocity - In/secGENERAL DESCRIPTIONThe air PROXIMITY SENSOR is a non-contact,no-moving-part SENSOR , capable of detect-ing the presence of an object at ranges up to1/8". In the absence of an object, air flowsfreely from the SENSOR resulting in a nearzero output signal. The presence of an ob-ject within the sensing range deflects thenormal air flow and results in a positiveoutput low supply pressure, flow from thesensor exerts only minute force on the ob-ject being sensed and is consequently ap-propriate for use where the object is light-weight, or easily marred by mechanical sen-sors. Since there are no moving mechanicalparts in the air PROXIMITY SENSOR , there are noinherent wear mechanisms or life limita-tions.

3 In this regard, the SENSOR is not cycledependent and is particularly appropriatefor applications requiring large numbers ofcycles. Also, the air PROXIMITY SENSOR isinherently explosion-proof and , it is suitable for many ad-verse 4 PSIGPs 6 PSIGPs 8 PSIGPs 10 PSIGPs 2 PSIGPs 1 PSIG SENSOR OBJECT Po Ps RANGENOTEOUTPUT PRESSURES SHOWN ARETYPICAL AND ACTUAL SENSORSOBTAINED MAY VARY DUE TOMANUFACTURING 1 PSIGPs 3/4 PSIGPs 1/2 PSIGPs 1/4 PSIG SENSOR OBJECT Po Ps RANGENOTEOUTPUT PRESSURES SHOWN ARETYPICAL AND ACTUAL SENSORSOBTAINED MAY VARY DUE TOMANUFACTURING TOLERANCESRANGE (IN). PRESSURE Po - PsigOUTPUT SIGNAL PRESSURE VS. RANGESUPPLY PRESSURE 1 THRU 10 PSIPERFORMANCE CHARACTERISTICS (For General Reference Only)OUTPUT SIGNAL PRESSURE VS.

4 RANGESUPPLY PRESSURE 1/4 THRU 1 PSIRANGE (IN). PRESSURE Po - In H2 OAIR PROXIMITYSENSORO KeefeO Keefe''Controls (203) 261-8331 Toll Free Phone (800) 533-3285CT Phone (203) 261-6711 Mailing Box Q4 Maple DriveTrumbull, CT 06611 O'Keefe Controls Co. 1993 All Rights ReservedMonroe, CT 06468 Air PROXIMITY SensorAir PROXIMITY SENSOR Symbol5/64 OD OUTPUT CONNECTIONFOR 1/16" ID SOFT TUBING3 " OD SUPPLY CONNECTIONFOR 1/8" ID SOFT TUBINGDIM. PORT10-32 THREADCAN BE ROTATEDDIM. BRACKETSTAINLESS STEEL TUBE1-3/49/161-1/161-5/81-1/45/16(4) # 16 (.178)DIA. HOLESAir/Air AmplifierDESCRIPTIONThe air/air amplifier requires only low pressure signals to pilot a directional control valve,which in turn, can operate at supply pressures up to 100 psig.

5 A control signal of 2" H2 Opressure is sufficient to shift the 4 way valve and produce an output signal up to 100 psig. Themain valve is of five ported-4 way construction, and can be used additionally as a 3 way valve,either normally closed or normally SENSOR INTEGRAL MOUNTINGP/N OKC-424 PROXIMITY SENSORP/N OKC 818 (Formerly 6080517)When an object is located inside the sensing range, the SENSOR flow is deflectedwith a resultant pressure buildup in the output. This pressure signal is the "on"condition of the SENSOR . The amount of pressure sensed increases as the objectmoves closer to the SENSOR . Nominal maximum sensing range is 1/8 the absence of an object disturbing the free flow of air exiting from the SENSOR ,the output pressure signal is in an "off" condition.

6 This "off" condition is a nearzero output FLOWOUTPUTSIGNALONOBJECTBEINGSENSEDFLOW CHANGED BYSOLID OBJECTP rinciple of OperationSPECIFICATIONSPART Valve 5 ports, 2 positions, 4 waySignal Pressure Valve shifts at 2" H2O increasing pressureValve resets at 1/2" H2O decreasing pressureSupply Pressure 30 to 100 psigPilot Pressure 50 psig optimum pressureMain Valve Flow Cv equals .08 (limited by 1/16" ID barbs)Range of PROXIMITY SENSOR Up to 1/8"Air/Amplifier Combination9/163/16 ADJUSTABLEMOUNTING NUTS 9/16 CAN MOUNTTHROUGH 1/2 " DIA. HOLE3/4 SIGNAL PORT1/16" IDPOLYURETHANETUBING 4' LENGTH1/4 MOUNTING BRACKETP/N OKC 326 SYMBOL-AIR/AIR AMPLIFIERSIGNALNORMALLYPASSINGFLOWPATHNO RMALLYNON PASSINGFLOWPATHPILOTAC1524 BARBS FOR 1/16" ID TUBING5 WORKING PORTS1 PILOT PRESSURE PORT1 AUXILLIARY CONTROL PORTDIM.

7 UNC TAP THRU - 2 PLACESO KeefeO Keefe''Controls Co. O'Keefe Controls Co. 1993 All Rights ReservedSIGNAL PORT (C)10-32 UNFAIR/AIR PRESSURE AMPLIFIERP/N KLUF2 Air/Electric SwitchesDESCRIPTIONThe air/electric switches presented here operate readily with the airproximity SENSOR . Each responds to low pressure air signals, and eachhas special characteristics which increase the total range of applica-tions of the air PROXIMITY SENSOR . Considerations in selecting a switchare current requirements, response time, differential or single endedoperations, and maximum required sensing OKC-661 Excellent vibration resistance; small size; pressure,vacuum or differential operation; fast response OKC-664 Greatest current capacity (10 amps); pressure only;SPDT contacts; moderate response OKC-819 Smallest size; fastest response time; up to 60 mil-liamps; pressure, vacuum or differential A separate electrical connector is provided for soldering to the electrical wireterminals.

8 Soldering must be done with the electrical connectors removedfrom the switch to prevent damage to the switch contacts by soldering heat. When controlling inductive loads, such as small relays, it is good practice touse RC suppression or diodes, as required to prevent arcing. Range Maximum sensing distance for combination of air PROXIMITY sensorand air/electric switch. Response Time Combined response time of air PROXIMITY SENSOR and air/electric COVER1-21/32 DIM. MTG. HOLES CLEARANCE FOR #6 SCR'SSIGNAL INPUT FOR 1/16 IDFLEXIBLE TUBINGOKC-661 OKC-819-1 OKC-664 DIA. MTG. HOLES(4 PLACES)REMOVABLE 2-PINELECTRICAL SOCKET 17/6423/64 DIM. FOR 1/16 IDSOFT TUBING (2 PLACES) FOR 5/32 IDSOFT TUBING (2 PLACES)CLEARANCE FOR#2 SCR'SDIM.

9 For P/N OKC-819P/N OKC-819-1 Normally Open (air to(formerly 6080157)make contacts)P/N OKC-819-2 Normally Closed (air to(formerly 6080503)break contacts)TypeSingle Pole Double BreakMaximum Current60 ma @ 120 volts-ACFor Resistive Load40 ma @ 120 volts-DCMediaAir or inert gas onlyDifferential Pressure1" H2O minimumTo Operate1 psig maximumResponse Time 10 millisecInput ConnectionsFor 1/16" ID tubingBody MaterialsPlasticTerminalsSolder connections Range 1/8" maximumSpecifications for P/N OKC-664P/N OKC-664 Air to actuate (positive(formerly 6080158)pressure only)TypeSingle Pole DoubleThrowMaximum Current10 amps @ 125 orFor Resistive Load250 VACM ediaAir or inert gas onlyPressure to4" H2O minimumOperate5 psig maximumResponse Time 50 millisecInput ConnectionFor 1/16" ID tubingBody MaterialsPlasticTerminalsScrew styleRange 3/32" maximumSpecifications for P/N OKC-661P/N OKC-661 Normally Open(air to make contacts)

10 TypeSingle Pole Double BreakMaximum Current200 ma @ 30 VDCFor Resistive LoadNeon lamp @ 120 VACM ediaAir or inert gas onlyDifferential " H2O minimumTo Operate1 psig maximumResponse Time 20 millisecInput ConnectionsFor use with 5/32" ID tubingBody MaterialsPlasticTerminals3/16" Male Tab connectors furnishedRange 1/8" maximumO KeefeO Keefe''Controls Co. O'Keefe Controls Co. 1993 All Rights Reserv