Alpha Lab VMG Electromagnetic Field Meter

PRODUCT DESCRIPTION

The Vector Gaussmeter displays the true magnitude of the field at any location as well as the X Y Z components of up to 800 gauss. Also separately displays peak values of X Y Z and magnitude.  There is a sound alarm that determines the locations where the field magnitude exceeds user-set threshold. Because magnitude is measured the orientation of the sensor (E-W N-S and up-down) is not important; this is unlike a 1-axis gaussmeter.  With the VGM the user can set the alarm to 15 gauss (for example) and it will sound (simultaneous with a red light) whenever the field exceeds 15 gauss for at least 5 milliseconds.  Using the meter this way it is easy to make a map of the 15 gauss line (or for whatever threshold is set) around a strong magnet. When using the alarm of a steel part can be rapidly scanned to show if any areas exceed the set threshold.  Then the "peak hold",function can be interrogated showing the peak values of X Y Z (including polarity) and magnitude that occurred during the scan.  Peak hold also has a 5 millisecond response time. The "reset",button resets all peak hold registers to the present values of X Y Z and magnitude which are displayed in real time when the knob is set to "measure."  Offsets can be manually applied to X, Y and Z or a "relative zero",can be applied to all three. This subtracts out the field at the time the button was pressed.