pg. 22
Calibration setup:
Description
Command
Parameter
FD!
FD!ALL
Gas calibration:
GT!
NITROGEN
×
×
MP Vacuum adjustment:
VAC!
Factory adjustment value
×
×
MP Span atmospheric adjustment: ATM!
Factory adjustment value
×
×
PZ Zero vacuum adjustment:
ZER!
Factory adjustment value
×
×
PZ absolute calibration:
SPN!
760 Torr
×
×
Pressure unit:
U!
TORR
-
×
Resetting to factory default
The factory default command resets all or certain parameters of the 910 to factory default settings as listed
above. If other digital communication setup than factory default values are used, then the communication will
be lost after execution of factory default and the transceiver equipment should be set to transducer values.
The factory default command resets parameters to default values and consequently
user adjustments, setup and factory configured parameters are lost. Use with caution!
Command:
@253FD!ALL;FF
Command values:
None
, ALL, UNLOCK, LOCK, VAC, ATM, ZER, SPN
Command reply:
@253ACK;FF
Transducer lock function
To ensure that no unauthorized personal are able to change transducer setup and parameters, the
transducer lock function can prevent direct access to parameter changes. Transducers delivered with pre-
configured custom specified parameters (special part number) are per default locked and will reply with
“NAK180”, if the user tries to change locked parameters. The unlock procedure must be executed to change
these parameters.
Disable lock function command:
Command:
@253FD!UNLOCK;FF
Command reply:
@253ACK;FF
Enable lock function command:
Command:
@253FD!LOCK;FF
Command reply:
@253ACK;FF
Standard transducer (8 digits part number: 910-xxxxx)
Factory default:
Transducer unlocked
Special configuration transducer (12 digits part number: 910-xxxxx-xxxx)
Factory default:
Transducer locked
If the transducer is delivered with special configuration, the lock function will only be
temporally disabled and will be enabled again after cycling power cycle or executing
the enable lock command.
The 910 transducer can be delivered with factory locked tamperproof settings for
safety interlock applications. This option is defined in the special settings. If
delivered with factory lock the transducer settings can only be changed if returned
to MKS.
