Model U3W Bridge Based Sensor In-Line Amplifier DESCRIPTION The Model U3W amplifier supplies a highly regulated bridge excitation voltage for the transducer and converts the millivolt signal of the transducer to a 4 mA to 20 mA three-wire current output signal. The Universal In-line features two selectable excitation voltages, programmable gain settings, a wide adjustment range on the zero, and a buffered solid-state shunt cal relay for quick calibration. FEATURES * Strain gage sensor amplifier * 18 Vdc to 32 Vdc supply voltage * NEMA 4 housing * Selectable excitation voltages: 3 V or 5 V @ 70 mA * 4-20 mA analog output * Increases signal-to-noise ratio in noisy environments * Effects of voltage drops in excitation sources are eliminated * Signals may be sent to the data systems from low impedence sources Model U3W PERFORMANCE SPECIFICATIONS Characteristic Measure Number of channels 1 Case material Plastic or painted aluminum Mounting Use #6 or #8 screws ENVIRONMENTAL SPECIFICATIONS Characteristic Measure Temperature, operating -15 C to 71 C [5 F to 160 F] Sealing IP66 or NEMA 4 OPTION CODES 2-pole active filter Many range/option combinations are available in our quick-ship and fast-track manufacture programs. Please see http://sensing.honeywell.com/ TMsensor-ship for updated listings. Filter setting 1 Hz 3 Hz 5 Hz 10 Hz 20 Hz 30 Hz 50 Hz 100 Hz 300 Hz 500 Hz 1000 Hz MOUNTING DIMENSIONS AND CHARACTERISTICS TRANSDUCER INTERFACE Characteristic Measure Transducer type Bridge-based sensor Transducer excitation 3 Vdc or 5 Vdc @ 70 mA AMPLIFIER CHARACTERISTICS Characteristic Measure Supply voltage 18 Vdc to 32 Vdc Current draw 70 mA Frequency response (-3 dB) Rise time (0 % to 90 %) dc: 7000 Hz with 350 ohm bridge dc: 5000 Hz with 5000 ohm bridge 54 ms with 350 ohm bridge 78 ms with 5000 ohm bridge Zero adjustment range, coarse 70 % Zero adjustment range, fine 25 % Span adjustment range 0.5 mV/V to 6.6 mV/V 25 % fine adjustment Linearity 0.02 % of full scale Shunt calibration Solid state relay on board Signal output 4 mA to 20 mA (three-wire) Signal-to-noise ratio 65 db dc power supply rejection ratio > 110 db Not RoHS compliant 2 Honeywell * Sensing and Control TYPICAL SYSTEM DIAGRAM Model U3W Bridge Based Sensor In-Line Amplifier Warranty. Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Honeywell's standard product warranty applies unless agreed to otherwise by Honeywell in writing; please refer to your order acknowledgement or consult your local sales office for specific warranty details. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace, at its option, without charge those items it finds defective. The foregoing is buyer's sole remedy and is in lieu of all warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. In no event shall Honeywell be liable for consequential, special, or indirect damages. While we provide application assistance personally, through our literature and the Honeywell web site, it is up to the customer to determine the suitability of the product in the application. WARNING PERSONAL INJURY * DO NOT USE these products as safety or emergency stop devices or in any other application where failure of the product could result in personal injury. Failure to comply with these instructions could result in death or serious injury. WARNING MISUSE OF DOCUMENTATION Find out more Honeywell serves its customers through a worldwide network of sales offices, representatives and distributors. For application assistance, current specifica- * The information presented in this datasheet is for reference only. DO NOT USE this document as product installation information. * Complete installation, operation and maintenance information is provided in the instructions supplied with each product. Failure to comply with these instructions could result in death or serious injury. tions, pricing or name of the nearest Authorized Distributor, contact your local sales office. To learn more about Honeywell's test and measurement products, call +1-614-850-5000, visit http://measurementsensors. honeywell.com, or e-mail inquiries to info.tm@honeywell.com Sensing and Control Honeywell 1985 Douglas Drive North Golden Valley, MN 55422 USA honeywell.com 008831-2-EN IL50 GLO June 2014 Copyright (c) 2014 Honeywell International Inc. All rights reserved. Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Honeywell: 060-6827-03