Automation Devices, Inc.

Air Operated Sensor and Switch

What is an Air Part Sensing Device?

Air Operated Sensor

8902 Jet-Tron

Low-Cost, Medium Speed, Non-Contact Detection

The Jet-Tron Detector (Model 8900) is a low-cost, air-operated control unit that detects any solid object without physically contacting it. It can detect any material which is capable of interrupting a small low-pressure stream of air. Any solid object which interrupts the air stream will cause a change in air pressure on the diaphragm. This in turn changes the state of the contacts of an internal micro switch.

Jet-Tron Air Operated Sensor

Entire kit, part number 8900, featuring flow control valve, sensor, fittings and air lines.

The reaction time of the air operated Jet-Tron Detector is slower than electronic detection devices; however, it is more than adequate for such applications as parts feeding, broken tool detection, on/off control of conveyors and auxiliary processing equipment, and most limit switching.

The Jet-Tron is ideal for detecting glass and other transparent or translucent materials which are not efficiently sensed by some types of electronic detectors.

Specifications, Applications, and Options

Model 8900 Specifications and Dimensions

All dimensions are in inches

Electrical Switch SPDT with Form C contacts
8 Amp resistive @ 120 Volts AC
5 Amp resistive @ 240 Volts AC
Air Supply Requires a clean air supply of 40 to 120 PSI
Diaphragm actuating pressure is adjustable from 0.2 to 2.5 PSI
Regulator fitting is 1/4 NPT
Maximum distance between probes is 3 inches

Shipping Weight: 2 pounds

Jet-Tron Air Sensor Components

Model NumberDescriptionComments
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Full AssemblyJet-Tron Air Flow detector, complete with Model 8700 air regulator, two 2-foot lengths of plastic tubing, and two reducing orifices.
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Air Flow DetectorAir flow switch ONLY - NO regulator, tubing, or fittings.
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Air RegulatorAvailable separately. Output range is adjustable from 0 to 100 PSI.
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Pressure GaugeMounts in the 1/8 NPT tapped hole in the regulator. Scale range is from 0 to 160 PSI.
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Regulator BracketComplete with a nut to secure the bracket to the regulator housing.

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