Vector/Magnitude Gauss Meter - IC-VGM

The model VGM is designed for rapid identification and measurement of areas that are magnetized. It is a DC gaussmeter with X,Y and Z sensors at the end of a probe. It displays the magnitude of the field and the X, Y, and Z components, showing both the actual values and the peak values of all the variables. In addition, whenever the field magnitude exceeds a value that you set, an alarm sounds and lights up, and a logic high signal appears at the output jack. The meter is shipped ready-to-use, and includes a 9-volt battery, AC adapter and calibration certificate. This meter is optimized to measure magnetized parts; its range of 799.99 gauss is not high enough to measure the surface of most permanent magnets.

Features:

- Displays the true DC magnetic field magnitude regardless of orientation of the probe
- No need to rotate the probe in order to find a relative maximum. This feature greatly speeds up the measurement of residual magnetism (by roughly a factor of 10) compared to a standard single-axis gaussmeter.
- Peak Hold Mode
- When set to the Peak/Hold mode, it displays the maximum field encountered since the last time Reset was pressed. The Peak/Hold response time is also 5 milliseconds, so after scanning a surface, the meter can detect and display any very brief peak (spike) as well as a slow one. It separately displays the peak values of magnitude, X, Y, and Z even if these four peaks had occurred independently.
- Sound alarm and light
- Alarm sounds if field exceeds a level you set or if the field is between lower and upper levels you set.
- Intuitive to use with rapid turn on, fast update. Begin measuring just by turning the knob. No setup or calibration required
- Runs on battery or AC adapter (included)
- Useful for long-term peak detection. All four peak values remain stored (and continue to update if a higher peak is encountered) until you reset them. The peak values and the present values of magnitude, X, Y, and Z can be displayed at any time.
- CE Compliant
- Certificate of NIST Traceability
- Detachable Rubber Boot
- Optional data logging and data set downloading using USB with AlphaApp
- Output Jack
- An alarm output jack is on the side of the VGM. Included is a plug terminating two wires, which is a 1/8 (3.25 mm) phone jack, similar to a small headphone jack. Output is 3.5 V when the alarm sounds (but only if the alarm is active) and 0V when the alarm is not sounding.

Applications:

- Very fast screening of parts for residual magnetism
- Can be scanned across a part to check whether it is magnetized anywhere on its surface. An alarm sounds (and lights) only where the field magnitude exceeds the level that you set. The alarm response time is 5 milliseconds, so it can be scanned quickly. The location(s) of high magnetism then become obvious. The alarm also detects rapid transients or spikes in the magnetic field, regardless of the direction or polarity. By using the alarm and peak hold functions, partially magnetized parts can be characterized with a minimum of effort, regardless of whether the field is oriented in an unexpected direction.
- Rapid mapping of magnetic field, such as from an MRI
- Use the alarm functions, for example, to find the 5 gauss contour without worrying about the probe orientation.
- Use as a laboratory X, Y, Z and magnitude magnetometer
- Also measures transient field, even if a pulse occurs once for 5 milliseconds within a period of days.

Specifications

- Range/Resolution: +/- 799.99 G/ 0.01 G. Includes polarity of X, Y, Z. Magnitude = is sqrt of sum of squares.
- Accuracy: 1% of reading (16 to 29 C), 2% of reading (-4 to 65 C) Pointing accuracy 1% of arc.
- Offsets: Relative zero (subtracts present field from X, Y, Z); Unlimited manual offset of X, Y, Z.
- Probe: 3-axis nondetachable 6.3 x 6.3 x 50 mm long. All three sensors are within 1.5 mm of probe end.
- Peak Hold: 0.005 sec time constant. Peaks in X, Y, Z and magnitude are recorded and stored separately.
- Alarm: Associated with magnitude only, 5 millisecond response time; Simultaneous red light.
- Alarm Levels: 100 levels can be selected, from 1.00 to 790.00 G
- Meter Size: 5.8 x 3.8 x 2.0 inches; 147 x 97 x 51 mm
- Weight: 11.7 oz
- Battery: 9 volt alkaline (10 hour life) /Low Battery indicator.