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FAQ Position Sensors and Electronics H. G. Schaevitz LLC Learn more about our linear position sensors and electronics. Need to talk to an engineer? Call us at 856-727-0250
What's So Good About LVIT Technology and What Is It All About, Anyway?Alliance Sensors Group, a division of H.G. Schaevitz, LLC, has developed a linear position sensing technology called LVIT that offers an excellent price-to-performance ratio compared to other linear position sensing technologies such as LVDTs, linear potentiometers, and magnetostrictive devices. Furthermore, LVITs can offer the best stroke-to-length ratio of any contactless linear position sensor, because their overall length only increases by a relatively small percentage beyond their stroke. Quick Start Guide ME-7 In-cylinder Position Sensor Installation
Mechanical installation: An ASG ME-7 in-cylinder position sensors is embedded into a 48 mm diameter
cavity in the rear endcap of a hydraulic cylinder. It may be inserted from the front of an unassembled
cylinder or from the rear of a cylinder with a two-piece endcap with a separate end cover.
 Quick Start Guide Installation of MR-7 Series In-cylinder Position SensorsMechanical installation: MR-7 in-cylinder position sensors are designed to be inserted into an o-ring port machined into the rear endcap of the hydraulic cylinder. Standard MR-7s use an SAE J1926-1 -8 port with a 3/4-16 UNF thread. Metric threaded versions use an ISO 1649-1 port with a M18 x 1.5 thread. Both ports are Illustrated below. For either size port, the sensor's male thread comes with a Viton o-ring installed. SAE J1926-1 -8 Port
GE Position Sensors on Power Gen TurbinesHow they work and how to use them with a third-party LVDT signal conditioner designed specifically for Power Gen Applications LVDTs (Linear Variable Differential Transformers) are very commonly used as position sensors in power plants throughout the world. Working from AC voltages and frequencies not available from power lines, LVDTs require a signal conditioner to provide the necessary operating power. Alliance Sensors Group's model S1A module, designed specifically to be used in power gen applications, is considered by many power gen users be the most advanced and easy to use single channel LVDT signal conditioner on the market today. It can operate practically any inductive or LVDT-type position sensor currently in use. Specific differences between ASG's S1A and SC-100 LVDT signal conditioner modulesThe S1A and SC-100 LVDT signal conditioners are very similar; however, each unit was designed with specific features for the markets it serves in mind, so there are a few differences between them. Linear Position Sensor Calibration using SenSet® Field ProgrammabilityAlliance Sensors' LVIT Linear Position Sensors offer SenSet® Field Programmability. SenSet® allows the installer to very simply and quickly exactly match the full scale electrical output of a sensor to the actual mechanical movement range of the device in which the sensor is installed ASG LVDT Signal Conditioning modules Graphic User Interface (GUI) Instructions1. Connect a 2-wire RS-485 port converter to the computer on which this GUI is to run and connect the converter's output terminals to the RS-485 bus connections on the LVDT module(s), Data A (D-) connects to terminal J3-2 and Data B (D+) connects to terminal J3-1, but always follow the data polarity (D) indicated above, regardless of the letters used for the data lines. ASG LVDT signal conditioner using its RS-485 communication portOperating an ASG LVDT signal conditioner using its RS-485 communication port ASG LVDT signal conditioners incorporate an RS-485 two-wire multi-drop serial communications interface for up to 16 devices. This port enables half-duplex serial communication by which a module can be set up and calibrated remotely and system data can be read or stored on a PC running a terminal program like Hyper Terminal with a 2-wire RS-485 converter for the computer's serial port or USB port connected to terminals J3-1 and J3-2 of the signal conditioner. The communication parameters are: 9600 bps, no parity, 8 data bits, and 1 stop bit (9600, NP, 8, 1), with echo on. Be sure that the RS-485 connection for Data A (D-) is connected to J3-2 and Data B (D+) is connected to J3-1. GE Gas Turbine LVDTs with an ASG S1A LVDT Signal ConditionerBy: Ed Herceg Chief Technology Officer The Alliance Sensors Group model S1A module is the most advanced single channel LVDT signal conditioner available today. It will operate practically any LVDT currently on the market, but occasionally users can be confused by unusual LVDT configurations,Our Technical Support Staff: We have more than 150 years and three generations in the position sensor business and are expert application engineers at what we sell. We have real world experience and know how to solve your measurement challenges. Need help technical help with your measurement application? Call us today 856-727-0250. Our Web Site: We are constantly improving our website and adding new sensors to our product offerings.
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