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Model 157 Charged Plate Monitor
Aug 2005
TREK Inc.Request Info
For Market Needs in ESD-Sensitive Manufacturing
MEDINA, N.Y., Aug. 26 -- Trek Inc., a manufacturer of electrostatic measurement instruments, sensors and monitors, high-voltage amplifiers, power supplies and generators, introduces its enhanced Model 157 charged plate monitor. Software enhancements to this charged plate monitor now enable the storage and retrieval of data and provide an additional data acquisition mode (1 ms/data point) in addition to the traditional mode (10 ms/data point). The new mode allows users to record the discharge data at a very fast sampling rate, which is important for those needing to perform testing of rapidly-changing discharge events, such as in semiconductor, disk drive, LCD and other manufacturing environments sensitive to electrostatic discharge (ESD).
   Specifications for the Model 157 include: DC accuracy better than 0.1 percent of full scale for voltage monitor output, bandwidth (-3 dB) of DC to 80 Hz, less than 6 V per minute drift with time, and monitored voltage range of 0 to 1020 V DC or peak AC. Specific applications for the Model 157 include the testing of room ionization systems, AC and DC blowers, nuclear ionizers, gun-type ionizers and pulsed DC ionizers, as found in open air and cleanroom facilities.

In materials testing, the Model 157 can be used for testing the dissipative qualities of products intended for use within ESD-sensitive facilities, including chairs, containers, placemats, floor mats and related products. The Model 157 is expected to be of interest in other environments where static charge is a concern, such as the assembly, processing, manufacturing and/or handling of electronics, powders, plastic, textile, paper, coatings and other materials in pharmaceutical, chemical, aerospace, automotive, medical/biotech, military and research and development applications.

The new storage and retrieval capability of the Model 157 enables test data to be saved and recalled, including actual data points, graphical waveforms of the data and operator comments about the test conditions or other parameters that need to be captured for future reference or validation.

Pricing for the Model 157 starts at $4400. For details on specifications, customizing options or for more information, visit:; e-mail:

Trek Inc.
11601 Maple Ridge Rd.
Medina, NY 14103
Phone: (800) FOR-TREK or (585) 798-3140
Fax: (585) 798-3106


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