LDM-1000 - LVDT/RVDT Signal Conditioning Module * * * * * * * * * 10 to 30VDC operation Standard DIN rail form factor 4 to 20mA and VDC outputs Zero, span and phase adjustable 2.5, 5 and 10kHz excitation frequencies Low noise, 3-pole Butterworth filter Master/slave capability Compatible with 4, 5 & 6-wire LVDTs/RVDTs Works with very low input impedance LVDTs and RVDTs DESCRIPTION The LDM-1000 is an extremely versatile and popular LVDT/RVDT signal conditioning module and the perfect choice for industrial applications requiring the DIN standard rail mount. The LDM-1000 provides everything you will need for accurately interfacing an AC operated Linear or Rotary Variable Differential Transformer to your industrial position control system. The LDM-1000 was designed with maximum sensor/system compatibility in mind. A wide range of gains, excitation voltages and frequencies ensure compatibility with virtually all LVDT and RVDT type transducers. A full-wave synchronous demodulator eliminates quadrature and harmonics to maximize external noise rejection. The LDM-1000 also provides several different input/output options to accommodate varying PLC and analog I/O requirements: Single-ended voltage outputs with the use of 100% zero suppression to maximize the sensor stroke utilization while simplifying programming (no need to deal with sign) Bipolar voltage output to maximize A/D bit usage with most PLC analog input modules, for applications requiring high resolution 4-20mA current output for applications requiring long signal runs or where noise immunity may be an issue. The 4-20mA loop is driven by an internal power supply, provided by the LDM-1000. Finally, the frequency response is internally selectable and so is the master/slave function which allows synchronization of multiple LDM-1000 modules to prevent beat frequencies and cross talk between transducers. Also see our other LVDT/RVDT signal conditioner models: LVM-110 LiM-420 ATA-2001 IEM-422 PML-1000 MP-2000 15VDC supply, 10 and 0 to 10VDC outputs, open circuit board 24VDC supply, 4-20mA (3-wire) output, open circuit board 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 types of sensors and signal conditioners. Data sheets can be downloaded from our web site at: http://www.meas-spec.com/datasheets.aspx Measurement Specialties acquired Schaevitz Sensors and the Schaevitz LDM-1000 Rev. 7 www.meas-spec.com 1/3 TM trademark in 2000. 2015-July LDM-1000 - LVDT/RVDT Signal Conditioning Module FEATURES * * * * * APPLICATIONS Standard DIN rail form factor Voltage and current output signals Phase correction Status LED's for power and loop integrity Multiple LVDT master/slave capability * * * * * Gas and steam turbine control systems Process control systems Reeler/dereeler control systems Automotive test track instrumentation Paper head box control PERFORMANCE SPECIFICATIONS ELECTRICAL SPECIFICATIONS Supply voltage Supply current Output types and ranges Temp. coefficient of output Voltage output noise & ripple Current output noise & ripple Current loop resistance Frequency response Non-linearity Input sensitivity range 18 to 30VDC or 10 to 18VDC (jumper selectable, 18 to 30VDC as shipped) 65mA maximum 5VDC, 0 to 5VDC, 0 to 10VDC, and 4 to 20mA (DIP switch selectable, 5VDC as shipped) 0.02% of FSO per F [0.036% of FSO per C] over the operating temperature range 5mV RMS maximum 25A RMS maximum 700 maximum (with 18 to 30VDC supply voltage) 250 or 1000Hz @ -3 dB (3-pole Butterworth, DIP switch selectable, 250Hz as shipped) 0.02% of FSO 0.05 to 2.50 VRMS Voltage Current Frequency 1 or 3 VRMS (DIP switch selectable; 3VRMS as shipped, with 18 to 30VDC supply voltage only) 25mA RMS 2.5, 5 or 10kHz (DIP switch selectable, 2.5kHz as shipped) Transducer excitation Transducer requirements Transducer type LVDT/RVDT input impedance LVDT/RVDT full scale output LVDT or RVDT with 4, 5 or 6 electrical connections 50 minimum @ 1 VRMS excitation ; 150 minimum @ 3 VRMS 0.05 to 2.50 VRMS ENVIRONMENTAL AND MECHANICAL SPECIFICATIONS Operating temperature range Storage temperature range Mounting Size Wire terminal size IEC 60529 rating -13F to +185F [-25C to 85C] -67F to +257F [-55C to 125C] Standard DIN-3 rail mount 3.90 [99.0] high x 0.89 [22.5] wide x 4.51 [114.5] Deep 24 to 12 AWG [0.2 to 2.5mm] IP60 Notes: All values are nominal unless otherwise noted Dimensions are in inch [mm] FSO (Full Scale Output) is the largest absolute value of the outputs measured at the range ends WIRING Download the operation manual at: http://www.meas-spec.com/manuals.aspx LDM-1000 Rev. 7 www.meas-spec.com 2/3 2015-July LDM-1000 - LVDT/RVDT Signal Conditioning Module DIMENSIONS AND INTERNAL VIEW Dimensions are in inch [mm] ORDERING INFORMATION Description LDM-1000 Signal Conditioning Module DC power supply (15VDC), Model PSD 40-15 Cable to connect HCA/HCI/GCA/R36AS to LDM-1000, 200C [392F] (PTO6A-10-6S to Stripped/Tinned) (1) Extension cable to connect LBB (option -001) to LDM-1000 (PTO6A-10-6S to Stripped & Tinned) (1) Part Number 02291333-000 02291339-000 04290595-000 04290596-000 (1) All cables are shielded, 10 foot long, and rated 80C [176F] operating unless otherwise noted. 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. LDM-1000 Rev. 7 www.meas-spec.com 3/3 2015-July Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: TE Connectivity: 02291333-000