LiM-420 - Current Output, LVDT/RVDT OEM Signal Transmitter * * * * * * * * Low cost OEM 4-20mA (3-wire) transmitter Very compact, open PC board design DIP switch selectable coarse gain Zero and span adjustment potentiometers 18 to 30VDC supply voltage o o -25 to +85 C operating temperature range Card-edge or barrier strip connections Works with very low input impedance LVDTs and RVDTs DESCRIPTION The LiM-420 is an LVDT/RVDT signal conditioning transmitter specifically designed for the OEM marketplace. Operating on an 18 to 30VDC unipolar supply voltage, the LiM-420 delivers a low noise 4 to 20mA output signal. Compatible with many 5 and 6 electrical connection LVDT and RVDT transducers (see specifications), this compact transmitter provides excellent performance on a budget. A generous excitation drive current of 20mA, allowing operation with transducer input impedances as low as 175 Ohms. The LiM-420 is designed for easy installation, plugged into a backplane-type connector, or with individual wires connected to the screw terminal barrier strip. Measuring less than 2.5x2.5 inches, the LiM-420 may be mounted or stacked using the permanently attached threaded standoffs, or card-edge guides. All six selectable gain ranges are easily accessed via DIP switches and two multi-turn potentiometers allow for fine zero and gain adjustments. Also see our other LVDT/RVDT signal conditioner models: LVM-110 LDM-1000 ATA-2001 IEM-422 PML-1000 MP-2000 12 to 15VDC supply, multiple uni-polar and bipolar selectable DC voltage outputs 10 to 30VDC supply, DC voltage and 4 to 20mA outputs, DIN rail mountable Line powered, DC voltage and current outputs, push-button programmable Line powered, 4-20mA output, NEMA-13 rated enclosure th AC or DC supply, DC voltage, current and RS485 outputs, 1/8 DIN panel meter, Line-powered, analog DC & RS232 outputs, 1/4 DIN, dual channel set point controller with bitmapped display Measurement Specialties, Inc. (NASDAQ MEAS) offers many other types of sensors and signal conditioners. Data sheets can be downloaded from our web site at: http://www.meas-spec.com/datasheets.aspx MEAS acquired Schaevitz Sensors and the Schaevitz FEATURES * * * * * trademark in 2000. APPLICATIONS Low cost/high performance Wide operating temperature range Six selectable gain ranges 20-turn zero & gain adjustment potentiometers Threaded standoffs for panel/box mounting LiM 4-20 Rev. 5 TM * * * * * Valve position feedback Roller gap sensing Paper head box position Coater knife gap Materials testing machines www.meas-spec.com 1/3 2015-July LiM-420 - Current Output, LVDT/RVDT OEM Signal Transmitter PERFORMANCE SPECIFICATIONS ELECTRICAL SPECIFICATIONS Supply voltage Supply current Output range Temperature coefficient of output Maximum loop resistance Output noise and ripple Frequency response Non-linearity Stability Zero adjustment range 18 to 30VDC (unipolar) 50mA maximum 4 to 20mA 0.02% of FSO per F [0.036% of FSO per C] over operating temperature range 500 (with 24VDC supply) 25A RMS maximum 50Hz @ -3 dB 0.05% of FSO 0.05% of FSO maximum (after 30 minute warm-up) 2.5mA Voltage Current Frequency 3.5 VRMS 10%, sine wave 20mA RMS maximum 2.5kHz Transducer type LVDT/RVDT input impedance LVDT/RVDT output range LVDT or RVDT with 5 or 6 electrical connections 175 minimum 0.1 to 5.6 VRMS for 20mA full scale output Transducer excitation Transducer requirements ENVIRONMENTAL AND MECHANICAL SPECIFICATIONS Operating temperature range Storage temperature range Gain adjustment Zero adjustment Electrical connections Mounting -13F to +185F [-25C to 85C] -40F to +257F [-40C to 125C] 6 DIP switch selectable ranges; 20-turn fine adjustment potentiometer 20-turn fine adjustment potentiometer PC board edge (to backplane-type connector) or barrier terminal strip (accepts AWG 14 to 30 wire sizes) Use the attached threaded standoffs or card-edge guides Notes: All values are nominal unless otherwise noted FSO (Full Scale Output) is the largest absolute value of the outputs measured at the range ends WIRING SCHEMATIC & LOOP RESISTANCE (LOAD) LiM 4-20 Rev. 5 www.meas-spec.com 2/3 2015-July LiM-420 - Current Output, LVDT/RVDT OEM Signal Transmitter DIMENSIONS ORDERING INFORMATION Description LVDT/RVDT 4-20mA Output, OEM Transmitter Module Mating Connector (sold separately) Cable to connect HCA/HCI/GCA/R36AS to LiM4-20 (1) Extension cable to connect LBB (option -001) to LiM4-20 (1) Model/Comments Part Number LiM-420 CINCH 5010A-20 PCB EDGE 1 PTO6A-10-6S to Stripped & Tinned PTO6A-10-6S to Stripped & Tinned 72290000-000 62105012-000 04290417-000 04290582-000 (1) All cables are shielded, 10 foot long, and rated 80C [176F]. Consult factory for other lengths. Download the operation manual at: http://www.meas-spec.com/manuals.aspx TECHNICAL CONTACT INFORMATION NORTH AMERICA EUROPE ASIA Measurement Specialties, Inc. 1000 Lucas Way Hampton, VA 23666 United States Phone: +1-800-745-8008 Fax: +1-757-766-4297 Email: sales@meas-spec.com Web: www.meas-spec.com MEAS Deutschland GmbH Hauert 13 D-44227 Dortmund Germany Phone: +49-(0)231-9740-0 Fax: +49-(0)231-9740-20 Email: info.de@meas-spec.com Web: www.meas-spec.com Measurement Specialties China Ltd. No. 26, Langshan Road High-tech Park (North) Nanshan District, Shenzhen 518057 China Phone: +86-755-33305088 Fax: +86-755-33305099 Email: info.cn@meas-spec.com Web: www.meas-spec.com 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. LiM 4-20 Rev. 5 www.meas-spec.com 3/3 2015-July Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: TE Connectivity: 04290582-000 72290000-000 62105012-000