VTI Instruments Corp.
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EX10xxA Web Page Operation
The process takes approximately 5 minutes to complete. Once the instrument has rebooted,
reconnect and confirm on the
EX10xxA Main
page that the firmware revision level has been
properly updated.
L
OCKING
M
ENU
The Locking menu is used to acquire, release, and break a lock on the EX10xxA’s acquisition
system.
Lock
This action page attempts to acquire a lock. It is good practice to lock the instrument whenever
protected operation is desired, but it is mandatory in order to perform self-calibration. If the
EX10xxA has been previously locked by another host, the lock will fail, and an error message will
be returned.
Unlock
This action page attempts to release a previously acquired lock. It will only release a lock that was
acquired by the same host. It will not release a lock acquired by a different host. In that case, the
unlock will fail, and an error message will be returned. An error message is also returned if the
unlock command is issued when the instrument is not in the locked state.
Break Lock
This action page breaks the lock on the EX10xxA, regardless of the host that originally acquired it.
It does not automatically acquire a lock in the same operation. If desired, that must be done with a
separate
Lock
command.
A
DVANCED
M
ENU
The Advanced menu is used to configure the EX10xxA to employ user-defined thermocouple
polynomial equations or utilize user-defined CJC temperatures. Neither of these functions is
required for normal operation with standard thermocouples.
User Conversions
This entry page is used to enter user-defined thermocouple polynomial coefficients. Up to two
unique sets of coefficients can be entered. For more details, see
Section 3. The entry of user-defined coefficients does not automatically enable their use. The
enabling is done by setting the EU conversion to User0 or User1 in the
Scan List…Configuration
page.
User CJC Temp
This entry page is used to enter and enable user-defined CJC temperatures. Each channel can be
associated with a unique value and be independently enabled with regards to its use. If enabled, the
user-defined CJC temperature will be used in the thermocouple calculations instead of the internally
measured one. The entry of external CJC values and their enabling are disjoint functions. That is,
the entry of a value does not automatically enable its use, and the disabling of a previously enabled
channel does not clear the value. All entries must be in units of ºC.
NOTE
This feature must be used with care, as the input channel data contains no indication that it was
calculated with an external CJC value instead of an internal one.
Summary of Contents for EX1000A
Page 28: ...VTI Instruments Corp 28 EX10xxA Introduction EX1044 DIAGRAM ...
Page 29: ...www vtiinstruments com EX10xxA Introduction 29 FIGURE 1 5 EX1044 TABLE TOP USAGE ...
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