PBN Series Pressure Switches and Sensors DESCRIPTION and their rugged construction allows use in the most rigorous The Honeywell PBN series is a range of versatile, low-cost, environments. ultra-low pressure switches and sensors. PBN products are compact, lightweight, feature high reliablity, Product specifications such as operating characteristics, and are designed to yield a repeatable response over millions termination type and contact materials can be customised for of cycles. They can be mounted in virtually any orientation certain applications. FEATURES POTENTIAL APPLICATIONS Sensitive to ultra-low pressures Arc fault detection Gage, vacuum and differential measurement Filter restriction Miniature size Safety interlock Lightweight HVAC Fast response Vacuum control Rugged housings Liquid level sensing Shock and vibration resistant Pick and place machiner y Low and high current versions Pump control Counters Edge detection Traffic counters Motor controlPBN3 High-Current, Low Pressure Sensors MECHANICAL SPECIFICATIONS Characteristic Measure Switch type SPDT nor mally open or nor mally closed Switching medium Air or compatible fluids Expected mechanical life Up to five million cycles depending on load Proof pressure 15 psi for units where set point is 75 in-H O or less 80 psi for units where 2 set point is greater than 75 in-H O 2 Weight Less than 20 grams Operating temperature 4 C to 66 C with Polyurethane (standard) diaphragm -40 C to 96 C with Teflon (optional)diaphragm PHYSICAL SPECIFICATIONS Characteristic Measure DESCRIPTION Mounting 2,6 mm (No 4), thread size screws The PBN3 series is a range of miniature, high-current, low- through mounting lugs or 2 mm (No 2) pressure devices which measure gauge pressure and can thread size screws through eyelets switch up to 16(4) A. Smooth 4 mm perpendicular por ts and Case material Polycarbonate and Polyetherimide 5 mm barbed radial ports are available. Nominal actuation standard (other materials available upon request) (see char t) pressure varies from 1 in-H O to 6,5 in-H O. Adjustable models 2 2 Contact material Silver (gold available on special order have actuation pressures which can be set from 10 in-H O to 2 for dry contact applications) 1109 in-H O. 2 Electrical connections 6,3 mm x 0,8 mm quick connect ter mi- nals supplied on all listings except PBN3XXXX-B and -D which have PBN3 devices comprise a snap-action SPDT pressure switch 4,8 mm x 0,5 mm connections which contains an actuator assembly and miniature micro Pressure ports Smooth perpendicular and barbed radial switch. The devices are designed to respond to positive air Pressure settings Factor y set or field adjustable pressure but may also be activated by non-corrosive liquids at (see chart) low pressures. Switching hysteresis = 25 % to 50 % of set point FEATURES ELECTRICAL SPECIFICATIONS High current switching capacity Characteristic Measure Sensitive to low gauge pressures Switch type Single pole double throw Miniature size Switch rating Dependent on actuation pressure Lightweight (see chart) Fast response Contact voltage 250 Vac Rugged housings Adjustable and non-adjustable models POTENTIAL APPLICATIONS Counting Edge detection Liquid level sensing Traffic counters Motor control Honeywell Sensing and Control 5