MTI Proforma 300EMI, Руководство пользователя

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MTI Instruments Technical Manual 7001-0005
Revision 1.0 November 5, 2013
14
The Proforma™ 300Gi can be used to measure wafers that do not require infrared
excitation (such as Silicon). When measuring wafers that do not require infrared
excitation, it is advantageous to turn off the lamps. Turning off the lamps when they are
not needed will increase the expected lifespan of the lamps. Note that the lamps
generate a large amount of heat and that turning the lamps on or off may initially affect
the accuracy of the reading. To guarantee the highest possible accuracy, it is advisable
to allow the system to acclimate of ½ hour after the lamp state has changed and to
perform a recalibration after acclimation.
3.1.4.5.6 Raw Volts
Default: Off
Raw Volts is provided as a diagnostic mode. The raw voltage signal does not have a
linearization table applied and therefore is not proportionally accurate to displacement.
The most common occasion that this setting will be used is when setting the position of
the top probe.
3.1.4.5.7 Resolution
Default:5 Significant Digits
Resolution sets the maximum number of digits that will be displayed on screen.
3.1.4.5.8 RS-232
Default Baud Rate: 57600
Default Format: N,8,1
The Proforma™ Series products support an RS-232 connection to a host computer.
Note that the Proforma™ Series products are DTE terminals and will require a null
modem connection to attach to a host computer. The RS-232 menu allows the user to
both check and set the RS-232 Baud Rate and Format.
3.1.4.5.9 Factory
The Factory setting allows a user reset to the factory default settings. All user settings
will be reset, including mode, calibration standard, limits, contrast, IP address, Ethernet
Mode, Export to location, Lamp operation (Proform™ 300Gi only), Raw Volts display,
Resolution Settings, RS-232 Settings, and Version Display. 2 levels of confirmation are
needed to perform a reset to factory default. Once reset to factory default has occurred,
the user will be instructed to reset the unit so that the values can be applied. Any user
settings will be unrecoverable.
3.1.4.5.10 Update
Via the front panel USB port, the Proforma™ Series products support field reflash of the
internal Firmware, updating the internally stored manual, restoring the factory linear
tables, or updating the web server files. After the file transfer has occurred, the user will
be instructed to reset the unit so that the updated files can be applied. Once the files
have been loaded into the system, the previous version of the files cannot be recovered.
3.1.4.5.11 Version
Activating the version function will place the firmware version number on the screen.