A line of 24VDC- operated LVDT position sensors provides a true zero to 10 V output for easy field integration with PLCs, digital indicators, A/D converters, computer-based DAQ systems, and QC data collection systems. The true zero voltage output permits a user to know exactly when the LVDT’s core is positioned at the beginning of the LVDT’s linear range of operation. The 24 VDC operating power is available from virtually any PLC and from most DAQ systems. Using built-in electronics, the SE 750 Series of general purpose DC-LVDTs provide the desirable features of AC-operated LVDTs, such as frictionless operation and dynamic response, but with the convenience of DC input and pre-calibrated output. Units provide highly reliable, contact-less operation with the high resolution, repeatability, and low hysteresis. The performance specifications and easy field integration of these industry-standard 3/4 in. diameter LVDTs make them suitable for a range of position measurement applications, including valve position sensing, hydraulic cylinder positioning and as machine tool positioners and automatic assembly equipment. The SE 750 Series is available in nine standard full scale ranges from 0.1 to 20 in. Maximum linearity error for sensors is less than or equal to ?.25 percent of FSO, with ?.10 percent of FSO available as an option. Operating temperature range is 0° to 160°F. Units operate from 24 VDC nominal, 15- 24 VDC ? percent at 30 mA nominal input and provide a full-scale output of 0 to 10 VDC over the specified linear sensing range. A single-ended LVDT, the SE Series 750 LVDTs feature a through-bore design that makes the sensor’s core accessible from both ends for better mechanical support and core guidance, as well as facilitating bore cleaning if needed in an application. Stainless steel housings act as supplemental magnetic shields to reduce the effects of external AC magnetic fields. SE 750 LVDTs are optionally available with Teflon bore liners and metric threaded cores.
Macro Sensors
Bldg. 22, 7300 U.S. Rte. 130 N., Pennsauken, NJ 08110-1514.
