140信号放大器

Model 140 Inline Amplifier Model 140 Revision D 05/23/2012 Low Noise Inline Amplifier User Selectable Gain Settings Small Rugged Package Includes Auto-Zero Function dimensions The Model 140 is a remote in-line DC amplifier designed to be used with bridge- type mV output transducers. The amplifier features five user selectable gain settings with a gain accuracy of ±0.5% and offers a wide bandwidth to 100kHz. The model 140 offers a unique auto-zero function (patent pending) that allows the operator to zero the transducer offset voltage to within ±1.5mV either remotely or by pressing the on-board push button at the user’s command, usually right before the taking of data. This feature removes any offset drift from the sensor for a more accurate measurement. FEATURES • Interface with mV Output Sensors • ±1.5mV Auto-Zero Function • x10, x25, x50, x100 & x200 Gain Settings • Wide Bandwidth to 100kHz • 5 to 30Vdc Excitation Voltage APPLICATIONS • Pressure & Level Indication • Static Acceleration Testing • Instrumentation Labs • Load Monitoring • Strain Measurement www.sensorway.cn Model 140 Inline Amplifier Model 140 Revision D 05/23/2012 performance specifications All values are typical at ±24°C and 12Vdc excitation unless otherwise stated. Measurement Specialties reserves the right to update and change these specifications without notice. Parameters DYNAMIC Input Type Differential Input Range (V) 0.5 to (Vexc – 0.6), each input referenced to ground User Selectable Gain Settings x10, x25, x50, x100, x200 Bandwidth (-3dB) DC to 100kHz Noise (nV/√Hz) 17 RTI + 2000 RTO Zero Output After Auto-Zero Actuation1 ±1.5mV, referenced to 2.5V reference out Input Range Limit for Auto-Zero Function ±10Volts/gain ELECTRICAL Excitation Voltage (Vdc) 5 to 30 Reverse Polarity Protection -20V, on excitation line Quiescent Current (mA) 15 Reference Out (Vdc) 2.5 ±0.05, referenced to ground Output Voltage Limit (Vpk) ±2, referenced to 2.5V reference out Gain Accuracy (%) 0.5 Output Impedance (Ω) <50 Insulation Resistance (MΩ) >100 @ 50Vdc ENVIRONMENTAL Operating Temperature (°C) -20 to +70 Storage Temperature (°C) -20 to +70 Environmental Protection IP50 Vibration (g) 20 pk from 50Hz to 2000Hz Shock (g) 2000 pk with 3.6ms Haversine pulse PHYSICAL Case Material Anodized Aluminum Electrical Connector, Input Binder Connector P/N 09-0098-00-05 (mates with Binder Connector P/N 99-0095-100-05) Electrical Connector, Output Binder Connector P/N 09-0098-00-05 (mates with Binder Connector P/N 99-0095-100-05) Weight (grams) 33 1 Auto-zero can be actuated using pushbutton or grounding remote auto-zero pin for minimum 2 sec. Multiple actuations may be required to achieve the ±1.5mV limit. 2 Supply Out: 5.00 ±0.10 Vdc, <150 mamps current source, >5.2 Vdc excitation required. 3 Excitation and common ground are direct connections from instrumentation end to transducer end. Optional accessories: 379-XXX Cable Assembly, 5x #30 AWG, (XXX designates length in inches, 10ft standard) AC-G04239 Mating Connector Plug (Binder Connector P/N 99-0095-100-05) The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different applications. All operating parameters must be validated for each customer application by customer’s technical experts. Measurement Specialties, Inc. does not convey any license under its patent rights nor the rights of others. www.sensorway.cn Model 140 Inline Amplifier Model 140 Revision D www.sensorway.cn 05/23/2012 schematic ordering info PART NUMBERING Model Number Model 140 中国 北京赛斯维测控技术有限公司 北京市朝阳区望京西路48号 金隅国际C1002 电话：＋86 010 8477 5646 传真：＋86 010 5894 9029 邮箱：sales@sensorway.cn