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Manafacture: Omega
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manual abstract
DMD-476 Bridgesenso. AC Powered Signal Conditione. omega.com® ® ® OMEGAnet OMEGAnetOMEGAnetOMEGAnetOMEGAnetOMEGAnet ® ®®®®® On-Line Service On-Line ServiceOn-Line ServiceOn-Line ServiceOn-Line ServiceOn-Line Service Internet e-mail Internet e-mailInternet e-mailInternet e-mailInternet e-mailInternet e-mail .omega.com .omega.com.omega.com.omega.com.omega.com.omega.com info@omega.com info@omega.cominfo@omega.cominfo@omega.cominfo@omega.cominfo@omega.com Servicing North America. USA: USA:USA:USA:USA:USA: One Omega Drive, Box 4047 ISO 9001 Certifie. Stamford, CT 06907-0047 Tel: (203) 359-1660 FAX: (203) 359-7700 e-mail: info@omega.com Canada: Canada:Canada:Canada:Canada:Canada: 976 Bergar Laval (Quebec) H7L 5A1 Tel: (514) 856-6928 FAX: (514) 856-6886 e-mail: info@omega.ca For immediate technical or application assistance. USA and Canada: USA and Canada:USA and Canada:USA and Canada:USA and Canada:USA and Canada:Sales Service: 1-800-826-6342 / 1-800-TC-OMEGASM Customer Service: 1-800-622-2378 / 1-800-622-BESTSM Engineering Service: 1-800-872-9436 / 1-800-USA-WHENSM TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA Mexico and Mexico andMexico andMexico andMexico andMexico and Latin America: Latin America:Latin America:Latin America:Latin America:Latin America: Tel: (95) 800-826-6342 FAX: (95) 203-359-7807 En Espanol: (95) 203-359-7803 e-mail: espanol@omega.com Servicing Europe. Benelux: Benelux:Benelux:Benelux:Benelux:Benelux:Postbus 8034, 1180 LA Amstelveen, The Netherlands Tel: (31) 20 6418405 FAX: (31) 20 6434643 Toll Free in Benelux: 0800 0993344 e-mail: nl@omega.com Czech Republic: Czech Republic:Czech Republic:Czech Republic:Czech Republic:Czech Republic:ul. Rude armady 1868, 733 01 Karvina-Hranice Tel: 420 (69) 6311899 FAX: 420 (69) 6311114 Toll Free: 0800-1-66342 e-mail: czech@omega.com France: France:France:France:France:France:9, rue Denis Papin, 78190 Trappes Tel: (33) 130-621-400 FAX: (33) 130-699-120 Toll Free in France: 0800-4-06342 e-mail: france@omega.com Germany/Austria: Germany/Austria:Germany/Austria:Germany/Austria:Germany/Austria:Germany/Austria:Daimlerstrasse 26, D-75392 Deckenpfronn, Germany Tel: 49 (07056) 3017 FAX: 49 (07056) 8540 Toll Free in Germany: 0130 11 21 66 e-mail: info@omega.de United Kingdom: United Kingdom:United Kingdom:United Kingdom:United Kingdom:United Kingdom:One Omega Drive, River Bend Technology Centre ISO 9002 Certifie. Northbank, Irlam, Manchester M44 5EX, England Tel: 44 (161) 777-6611 FAX: 44 (161) 777-6622 Toll Free in the United Kingdom: 0800-488-488 e-mail: info@omega.co.uk It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply. OMEGA is constantly pursuing certification of its products to the European New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification. The information contained in this document is believed to be correct, but OMEGA Engineering, Inc. accepts no liability for any errors it contains, and reserves the right to alter specifications without notice. W WWWWWARNING ARNINGARNINGARNINGARNINGARNING: These products are not designed for use in, and should not be used for, patient-connected applications. Description The Model DMD-476 is a self contained, AC powered signal conditioner for bridge type instrumentation. It contains a precision instrumentation amplifier with isolated, filtered output and a highly regulated, low noise, adjustable output bridge excitation source. The unit is completely encapsulated for use in rugged environments. Features . Complete Strain Gage Bridge Signal Conditioner . Isolated 4-20 mA or 0-20 mA Output . Output Capable of Driving 1000 ohm Loop . Bridge Balance with 80% Tare Offset Capability . High Gain Amplifier; Can Accept Full Scale Live Load Signals as Low as 5 mV and Provide 16 mA Output Span . Excitation Supply Capable of Driving Four Load Cells . AC Powered . Rugged Epoxy Encapsulated Design Applications . Weighing with Load Cells . Process Control Add-on Loops . Can Be Used With All Types of Low Output Sensors Specifications NOTE: Unless otherwise noted, specifications apply after one hour warm up at 25°C ambient. Temperature coefficients apply between 0°C and 55°C ambient. Isolation Input to Output 700 VDC 60pF Amplifier Gain Adjustment Range Input for 4 -20 mA Output 5 mV to 50 mV Linearity ±0.01% of Full Scale Temperature Stability 50 PPM (0.005%/°C) Input Noise .1 Hz to 10 Hz 2 V P-P Tare Adjustment Range Bridge Offset -3 mV to +25 mV (Equals 80% F.S. of 3 mV/V cell) Input Resistance Differential and Common Mode 1000 megohm Common Mode Rejection, DC 100 dB minimum Common Mode Input + 5 Volts Output Zero Adjust Temperature Coefficient 0 or 4 mA 1mA/ C Current Output Span 4 to 20 mA or 0 to 20 mA Compliance Voltage -1 to +20 Volts Current -1 mA to +20 mA Loop Resistance 0 to 1000 ohms Frequency Response, -3dB 10 Hertz, 2 Pole Roll Off Response Time Rise Time 10% to 90% To 0....