Alliance Sensors Group

The LA-21-A series AC LVDTs offers the robust designs for which Alliance Sensors Group is known in typical industrial packages, with full ranges from 3 inches (75 mm) to 15 inches (375 mm). They are supplied in a zinc-plated-steel 0.805 inch (20.5 mm) diameter housing with 4-inch (100 mm) stripped-and-tinned axial leads. Each LVDT’s core is enclosed in a 38 inch (9.5 mm) diameter extension rod from which it cannot break loose and has a 516-24 UNF or M8 X 1.25 male thread for easy attachment. LA-21-A AC-LVDTs are ideal for stamping or drawing press die opening, injection molding machine platen position, process valve controls, and roller gap feedback in steel or aluminum mills. Mated with ASG’s SC-100 industrial LVT DIN-rail-mountable analog output signal conditioner, and LA-21-A LVDT becomes an ideal solution for typical industrial applications requiring rugged, accurate position sensors.

Alliance Sensors Group LA-27-A series LVDT linear position sensors are designed to handle extreme industrial environments. This robust linear sensor has a thick wall aluminum housing (also available in stainless steel), a core enclosed inside of the core extension rod assembly that cannot break loose, while offering a sturdy male thread for easy mechanical connection, and a pair of double contact shaft seals to keep fluids and solid contaminants out of its bore. The sensor’s electrical termination includes the choice of an axial connector or a cord grip with a cable. An LA-27-A LVDT is ideal for roller gap positioning, head box feedback, process valve displacement, and actuator position feedback with the durability to withstand the harsh environments found in steam and hydro power plants; paper, steel, and aluminum mills; and industrial automation and fluid power systems. It can operate in such hostile factory environments as lubricant mist, cutting oil spray, and airborne grit or dust, and it survives typical industrial steam cleaning and wash downs. Mated with ASG’s SC-100 industrial LVDT DIN-rail-mountable signal conditioner, the LA-27-A LVDT becomes an ideal solution for heavy duty industrial applications requiring position sensing. For operating an LA-27-A as a steam valve position sensor in a power plant, ASG’s model S1A signal conditioner, which is designed specifically for that application, is recommended.

Alliance Sensors Group LV-45 series LVIT (Linear Variable Inductance Transducer) position sensors are specifically targeted for measuring applications requiring rugged devices, whether measuring position of steam turbine valves, mounted in a paper mill head box or calendar roll stand, or operating outdoors fastened to a bridge or structure. LV-45 sensors use a contactless inductive technology that allows them to replace other technology sensors like potentiometers and DC LVDTs in most applications. With a simple coil design, a captive connecting rod, and a thick walled housing, the sensors are both shorter and more robust than their DC-LVDT counter parts while operating over a wider temperature range, so they can withstand the vibration and shock levels found in mills and power plants, as well as the temperature and humidity found in outdoor applications. Once a sensor has been installed, ASG’s SenSet® range adjustment process permits a user to match the sensor’s zero and full scale output to the workpiece’s actual range of motion. For more information see the technical data sheet below.

The MR-7 Series LVIT (Linear Variable Inductance Transducer) Position Sensors from Alliance Sensors Group has been designed as an alternative to magnetostrictive sensors and has more robust construction and a lower cost of ownership. The unit can be port mounted in industrial or moble hydraulic cylinders and pneumatic actuators. These MR-7 Series sensors are based on a proprietary contactless inductive sensing technology that employs a 7 mm diameter probe with a shorter stroke-to-length ratio than most other technologies, and uses a gun drilled hole in the cylinder rod for sensing the rod position rather than requiring a ring magnet assembly. An MR-7 has a 1.75 inch (44.5 mm) hex sensor head with a male o-ring port thread, so it can be mounted in the same SAE dash 8 or 18 mm 0-ring port as magnetostrictive sensors. Because they are contactless, MR-7 Series sensors do not wear out and have no signal deterioration over the life of the sensors, and because it uses an inductive coil, an MR-7 sensor can withstand much greater shock and vibrations than other technologies. One very useful element of the MR-7 sensors is ASG’s proprietary SenSet™ feature whereby a sensor’s analog output can be easily adjusted in the field after installation too match the range of motion of the cylinder rod. Technical datasheets and additional information can be found below.

The GHS-19 series of LVIT (Linear Variable Inductive Transducer) spring-loaded position sensors by Alliance Sensors Group are contactless devices designed for dimension measurements in QA labs, or position measuring applications in factory automation systems and in various industrial and commercial applications such as automotive testing, milaero test stands, robotic arms, and packaging equipment, where the sensing element cannot be attached to the object being measured. GHS-19s are offered in nominal full scale ranges from 6.35 to 100 mm (0.25 to 4.0 inches) with excellent resolution and high stroke-to-body-length ratios. The maximum tip contact force on the item being measured is 1 pound. GHS-19 sensors have a 0.75 inch (19 mm) diameter aluminum or stainless steel body with a 12-20 UNF-2A thread 1.5 inches (38 mm) long with two 19 mm (0.75 inch) hex jam nuts for drop-in installation in place

Alliance Sensors Group’s LA-25-R series of AC-LVDT linear position sensors have been designed for use in steel, aluminum, and paper mills; fluid power systems; and steam or hydro power plants. These heavy duty sensors use a thick wall aluminum housing (stainless steel available) with an open bore and radial terminations that include a cable in a cord grip, a heavy duty industrial connector, or an optional high temperature connector, with which the LA-25-R is a natural choice as a heavy duty replacement for older through-bore LVDTs with a radial connector found in some steam power plants for valve position. The core of the LA-25-R is enclosed in a 38 inch diameter stainless steel connecting rod assembly from which it can never break loose, and which has a male threaded end for connection to a user’s workpiece or many optional end pieces available from ASG. Because it has an open bore, an LA-25-R has no shaft seal around the operating rod, but it still has an internal stop for the fully retracted core rod to facilitate mechanical setup. The LA-25-R series LVDT are ideal for roller gap measurement, head box feedback, control valve shaft position, and hydraulic actuator position feedback. They have the ruggedness to withstand the harsh environments in steam power plants; paper, steel, and aluminum mills; industrial fluid power systems; and hydroelectric plants, and can survive industrial wash downs and equipment cleaning operations. Mated with an Alliance Sensors’ model SC-100 DIN-rail-mounting LVDT signal conditioner, an LA-25-R LVDT based system becomes an ideal solution for almost any heavy industrial position measuring applications. For power plant applications, an ASG model S1A is the recommended DIN-rail-mounting LVDT signal conditioner to use with an LA-25-R series LVDT.

Kit Includes: EGT Probe, Marine Duty Digital Pyrometer Gauge with Audible High Temperature Alarm, Adjustable Compression Fitting, Stainless steel weld bung, plus Extension Cable + Connectors (Recommended for fuel types: Diesel & Biodiesel) Features EGT Probe diameter 316 inch (0.187 inch) (4.75 mm) Inconel 600 sheath Includes 316 SS adjustable compression fitting Digital Pyrometer Size ~ 1.5" high x 3.0" wide x 1.75" deep Max temperature "Peak hold" display capture capability High set-point alarm with internal relay contact °F°C selectable Front Bezel Rating: NEMA4XIP65 Power: 9 to 28 VDC Audible Buzzer Alarm Stainless Steel Weld Bung Adapter 10, 20, 50, 75, or 100 feet of PTFE coated Extension Wire Male & Female wire connectors MADE IN USA

The Sensor Connection TCA-MS-K-8-A4 EGT Probe Thermocouple Amplifier Module functions to convert the low output voltage signal from up to 8 Type K thermocouple probes into 8 independent linearized 0 to 5 VDC output voltages. This output is ideal for interfacing to dataloggers, aftermarket ECU's, temperature indicators, chart recorders, controllers, or other instrumentation equipment.

This ThermocoupleRTD scanner is perfect for any multi-point temperature measurement application. The bright red LED display is easy to read, even at a distance. Splash-resistant front panel keypad is easy to clean & wipe down. The meter has 2 user-selectable HILO, HIHI, or LOLO alarm set points, configured through the front panel push buttons. During an alarm condition a front panel LED annunciator is enabled & an internal 2 Amp relay contact output is engaged. The meter display will cycle through all input channels at a user determined rate of 0.5~10 seconds. 24 VDC powered. A must have for multi-point temperature monitoring in the Lab, control room, or Dynamometer.