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The ShotChek current pulse monitors are a family of instruments which measure the large pulses of electric current used to magnetize materials prior to magnetic inspection, a non-destructive testing technique used to locate defects in ferromagnetic metals. Inspection Research, Inc., has developed the ShotChek Model III current pulse monitor to provide both peak current and pulse duration measurement in a package suitable for permanent mounting in a plant environment. Additionally, the Model III can automatically compare each reading to upper and lower limits set by the user via the front panel keypad. Electrically isolated contact closures which indicate the result of the comparison are provided for connection to alarms, controllers, or other equipment. These new features make the Model III compatible with automated inspection facilities.
The
ShotChek Model III enables inspectors to know that their customers'
specifications for minimum amperage and duration are being
met. Duration measurements conform to the half-amplitude definition
of pulse width now being utilized by Exxon, Shell, and others.
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