Instrumentation and Control News

Suited for applications utilizing ac and dc operated LVDT inputs, the microprocessor-based, dual-channel Series DMC provides digital position indication and cross-channel math and control functions for monitoring, measuring, and control requirements. Units offer programmable input averaging, digital filtering, and HI/LO limit detection. GUI enables operators to calibrate and set up sensors, retrieve or send programs, and view and collect data remotely through RS-232 or Ethernet.

DMC Digital Controllers feature microprocessor-based logic and advanced software to provide digital position indication and cross-channel math and control functions for advanced monitoring, measuring and control requirements. It features programmable input averaging and digital filtering and HI/LO limit detection for "Go/No-Go" gaging applications for in process gaging, quality control and product sorting.

Offered in both hard-connected and spring-loaded versions, Macro Sensors’ 4-20 mA current loop output LVDTs are hermetically sealed against dirt, water, steam, solvents, and other corrosive elements, that enables their installation in hostile environments while the loop wiring connects to remote indicators and/or controllers located in environments safe from hostile conditions.

The system consists of an analyzer that is capable of operating from one to four sensors or transducers for reliable and cost-effective measurement. Measurements are made by transmitting a high frequency sound wave and measuring the interval between sensor origin and the sludge blanket below.

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...

GHSI 750 Series is available in ranges of +0.500 in. to ±2.00 in. with max linearity of ±0.5% of full range output. Sensors consist of spring-loaded shaft running in precision sleeve bearing and connected to core of LVDT...

Sensors are also ideal for remote sensing applications in which AC power is not readily available to operate external signal conditioning. In addition, the sensor can be installed in a hazardous location while the wiring connected to power supplies, indicators and controllers in a safe environment...

Using built-in electronics, the SE 750 series of general purpose DC-LVDTs provide frictionless operation and dynamic response, but with the convenience of DC input and pre-calibrated output. These devices promise highly reliable, contact less operation with high resolution, excellent repeatability and low hysteresis.

The LVDT-based linear position sensors are available in a variety of configurations. These include hermetically sealed AC- and DC-operated LVDTs with axial or radial connectors, and UL/ULC- listed AC-operated LVDTs approved for operation in Class 1, Division 2 and Class Zone 2 hazardous locations...

The company explained that the true zero voltage output is a valuable feature that 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 24Vdc operating power is available from virtually any PLC and from most DAQ systems...