Lake Shore Model 460 Gaussmeter User’s Manual
Operation
3-11
3.7
FIELD AND TEMPERATURE COMPENSATION
Pressing and holding the
Filter
key for
≈
5 seconds will show the following field and temperature
compensation displays.
NOTE:
Unless there is a specific reason to the contrary, Lake Shore strongly advises customers
not to turn the field and temperature compensation off. The reading accuracy can be
substantially reduced with the Field Compensation turned off.
Field and Temperature Compensation may be disabled by the user by selecting channel, then pressing
and holding the
Filter
key for
≈
5 seconds. After pressing and holding the
Filter
key for
≈
5 seconds, the
following Field Compensation display will appear.
Se l e c t Wi t h ° ®
Fi e l d Co mp ¡ On Of f
Se t t i n g Ch a n n e l Z
To improve accuracy, many probes have a magnetic field compensation table stored in a PROM.
Selecting Field Compensation Off will cause the Model 460 to ignore this table. Pressing the s or t
keys cycles between On and Off. Push the
Enter
key to accept the new setting or the
Escape
key to
leave the setting as is and return to the normal display. If the probe does not have field compensation,
the setting is ignored.
Se l e c t Wi t h ° ®
Te mp Co mp ¡ On Of f
Se t t i n g Ch a n n e l Z
Some probes also feature temperature compensation. Selecting Temperature Compensation Off will
cause the Model 460 to ignore this data. Pressing the s or t keys cycles between On and Off. Push
the
Enter
key to accept the new setting or the
Escape
key to leave the setting as is and return to the
normal display. If the probe does not have temperature compensation, the setting is ignored.
Although the field and temperature compensation functions are not applicable to the Vector Magnitude
display, the reading accuracy of the Vector Magnitude will be affected by the individual component
settings.
3.8
GAUSS
/
TESLA
The Model 460 displays magnetic field values in gauss (G) or tesla (T). Press
Gauss/Tesla
to toggle
the display between the two units. Changing gauss/tesla settings automatically applies to all X, Y, Z,
and vector magnitude readings. The relation between gauss and tesla is 1 G = 0.0001 T, or 1 T =
10,000 G. When the field units are changed, relative and alarm setpoints convert to the new units with
no interruption in operation. Corrected and Monitor Analog Outputs are not affected by a units change.
When tesla is selected, the Model 460 front panel displays AC or DC field values followed by T for
tesla, mT for millitesla, or uT for microtesla. However, to obtain complete field readings over the
IEEE-488/Serial Interface, the user must also send a
FIELDM?
command to define the multiplier.
When gauss is selected, the Model 460 front panel displays AC or DC field values followed by kG for
kilogauss, G for gauss, or mG for milligauss. However, to obtain complete field readings over the
IEEE-488/Serial Interface, the user must also send a
FIELDM?
command to define the multiplier.
Summary of Contents for 460
Page 4: ......
Page 7: ...Lake Shore Model 460 Gaussmeter User s Manual ...
Page 8: ......
Page 108: ......
