Features

Pressure Gauge

The MAN-R pressure gauge from KOBOLD (Pittsburgh, PA) uses an elastic measuring element to generate a precise, reproducible deflection when subjected to pressure. The pressure is converted into rotary motion of a pointer. The subsequent pressure measurement can then be read on the scale of the dial. Available in ranges from 30" Hg to 15,000 PSIG, the MAN-R offers a choice of up to four magnetic, sliding, or highly reliable inductive switches. Bottom or rear process connections are available in 1/4" or 1/2" NPT.

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Regulator

STMicroelectronics (Coppell, TX) has introduced the LDBL20, a 200mA Low-Dropout (LDO) regulator in a 0.47 × 0.47 × 0.2 mm chip-scale package. The LDBL20 features a 200mA output. Input voltage ranges from 1.5V to 5.5V, with 200mV typical dropout. Rejection (PSRR) of 80dB at 100Hz and 50dB at 100kHz simplifies filtering over a wide frequency range. The device has a quiescent current of 20μA no-load, 100μA full-load, and 0.3μA in standby. Output voltages are available on request, from 0.8V up to 5.0V in 50mV increments. Built-in features include logic-controlled electronic shutdown, internal soft-start, and support for active output-voltage discharge if required.

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Position Sensors

The Alliance Sensors Group (Moorestown, NJ) has introduced the PG Series of linear variable differential transformer (LVDT) position sensors. The products are designed specifically for valve position sensing applications, such as steam turbine control systems in electric power generation plants. Installation features include standard body clamps, flange mounts, ball joint couplings, and rod eye ends. Two double-contact shaft seals keep contaminants from the LVDT’s bore. With no connector, the sensor has screw clamping terminals that accept No. 24-14 AWG wire. Continuous sensor operation is possible in ambient temperature up to 350 °F (175 °C).

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Wireless Temperature Sensing System

Chromalox (Pittsburgh, PA) offers the IntelliTrace® Wireless system for heat trace applications in both ordinary and hazardous areas. The Chromalox temperature sensing system includes the IntelliTrace® ITAS or ITLS Series Heat Trace Control Panel and specific industrial wireless transmitters, which are paired with appropriate temperature sensors. The panel facilitates both wired and wireless temperature sensor inputs, and the touchscreen computer HMI distinguishes wireless circuits from wired ones. The IntelliTrace® Wireless system utilizes the Rosemount® 248 Wireless Temperature Transmitter, which may be pipe- or structure-mounted. The 248 transmitter is offered with either aluminum or polymer housing, and is available with or without a matching universal mounting bracket.

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Sensor Diagnostics

The IP67-rated Allen-Bradley ArmorBlock IO-Link master from Rockwell Automation (Milwaukee, WI) allows manufacturers and industrial operators to access detailed sensor diagnostics in harsh operating environments. The device features event and process time-stamping capabilities for on-machine applications. The IO-Link master stores up to 40 timestamps of sensor events on each channel. Input timestamps of all sensor data also can be sent to the controller upon a change of state. The on-machine option requires only a single cable from the cabinet. The ArmorBlock IO-Link master includes connectivity for up to eight IO-Link sensors.

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Transceiver

Mountain RF Sensors (Fort Lauderdale, FL) has announced the MtRF-7501 VHF/UHF Ground-to-Air Transceiver. The model supports Single Side Band (SSB), LSB, and USB modes. Featuring frequency ranges of 116–152 MHz (VHF) and 225–400 MHz (UHF), the Model MtRF- 7501 provides RF output of 25 Watts AM, 50 Watts FM, and 100 Watts on SSB. Housed in a 4U, 19-inch rackmount enclosure, the transceiver includes serial, USB, Ethernet, and remote display ports. The unit features a color touch screen standard, plus dedicated front panel controls for power, volume, squelch, tuning, and high/low power. The MtRF-7501 operates from 90–250 VAC line power or 24–32 VDC.

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Lidar Sensor

Velodyne LiDAR (Morgan Hill, CA) has announced the Puck Hi-Res™ sensor. Expanding on the company’s VLP-16 Puck, a 16-channel, real-time 3D lidar sensor, Puck Hi-Res provides greater resolution in the captured 3D image. Puck Hi-Res retains the VLP- 16 Puck’s 360° horizontal field-of-view (FoV) and 100-meter range, but offers a 20° vertical field of view for a tighter channel distribution — 1.33° between channels instead of 2.00°. The real-time LiDAR sensor supports autonomous-vehicle, 3D-mapping, and surveillance industries and applications.

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