February, 2019
www.us-tech.com
Brookfield, WI — Exact Metrology is now offering a variety of metrology technology for the power generation market. Some of the typical equipment used includes laser trackers, LIDAR scanners (Leica scan station and Surphaser), white light scanners and blue light scanners. Additional equipment available includes measuring arms and CT scanners. Exact Metrology, with facilities in Cincinnati
Exact Metrology Offers Comprehensive Services and Product Selection
Exact Metrology is targeting companies that produce parts or assemble them in the power gener-
and Milwaukee and affiliated offices throughout the Midwest U.S., is a comprehensive metrology services provider, offering customers 3D and CT scanning, reverse engineering, quality inspection, product development, and 2D drawings. The com- pany also provides turnkey metrology solutions, including equipment sales and lease/rental arrangements.
Ametherm Releases Ceramic PTC Circuit Protection Thermistors
Carson City, NV — Ametherm has introduced a new series of ceramic PTC circuit protection thermistors that combine a high voltage rating with low resistance. The CL20 series PTC Ther -
mistors provide an alternative to fixed resistors and are optimized for inrush current limiting in pre-charge circuits, degaussing circuits and heater applications, in addition to over-current protection. The PTC thermistors deliver
voltage ratings up to 1,200 VDC and maximum energy ratings to 600J. The devices offer five resistance val- ues at 77°F (25°C) from 7 to 100W, with tolerance down to 25 percent, to accommodate a variety of pre-charge times. These resistance values remain unchanged over the operat- ing temperature range of –40 to +230°F (–40 to +110°C). The CL20 series is designed to
provide stability and reliability in high-voltage applications, and can withstand hundreds of hits of maxi- mum inrush current without degrad- ing. PTC thermistors do not require reset time and therefore will not result in large inrush current during repetitive use, as their resistance remains in a high state. The PTC thermistors have a
dissipation constant of 22.5 mW/°C, heat capacity from 2 J/°C to 3.45 J/°C, transition temperature of 248°F (120°C) and a thermal time constant of 65s. Switch and continuous cur- rents for these PTC thermistors range from 450 to 1,750 mA and 225 to 850 mA, respectively. The radial-leaded CL20 series
devices offer easy PCB mounting, have a diameter of 0.9 in. (22 mm), straight leads, and most come with optional outside or inside kinked leads. Ametherm also offers smaller PTC circuit protection devices with diameters from 0.24 to 0.79 in. (6 to 20 mm).
Contact: Ametherm, 961
Fairview Drive, Carson City, NV 89701 % 775-884-2434 E-mail:
lori@ametherm.com Web:
www.ametherm.com
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ation sector. These can be part manufacturers of pumps, housing turbines, etc. Likewise these cus- tomers can be the facilities that assemble these complex parts. Exact’s target personnel includes manufacturing engineers, quality control, quality assurance, design engineers, and project managers. The power generation market has many
applications. Some of these are part qualification, part inspection, reverse engineering, part fit-up, and facility scanning. Others include facility mod- eling, BIM modeling, color map inspections, as-
built modeling, and design intent modeling. Contact: Exact Metrology, Inc., 20515
Exact Metrology six-axis 3D scanning arm.
Industry Avenue, Brookfield, WI 53045 % 262-533-0800 E-mail:
deans@exactmetrology.com Web:
www.exactmetrology.com
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