MKS UniMag 971, Operation And Installation Manual, Page: 21 / 44

971 UniMag ™ Operation manual 18
The transducer is per factory default delivered with parameters and setup as listed below. If the transducer is
delivered with customer preconfigured parameters the values are different than listed below and the
parameters will be locked per default.
Communication parameters:
Description Command Parameter FD! FD!ALL
Address: AD! 253 - ×
Baud rate: BR! 9600 - ×
Communication delay: RSD! ON - ×
Transducer parameters:
Description Command Parameter FD! FD!ALL
Test mode (LED flash): TST! OFF × ×
User tag: UT! MKS - ×
Set point 1 value: SP1! 1.00E0 - ×
Set point 1 hysteresis value: SH1! 1.10E0 - ×
Set point 1 direction: SD1! BELOW - ×
Set point 1 enable: EN1! OFF - ×
Set point 2 value: SP1! 1.00E0 - ×
Set point 2 hysteresis value: SH1! 1.10E0 - ×
Set point 2 direction: SD1! BELOW - ×
Set point 2 enable: EN1! OFF - ×
Set point 3 value: SP1! 1.00E0 - ×
Set point 3 hysteresis value: SH1! 1.10E0 - ×
Set point 3 direction: SD1! BELOW - ×
Set point 3 enable: EN1! OFF - ×
Setpoint safety delay: SPD! ON - ×
Cold Cathode protect setpoint PRO! OFF
- ×
Switch enable: SW! OFF - ×
Analog out 1: AO1! 30
(1)
- ×
(1) If the transducer is delivered with other analog output than standard mks (part number specified), then the factory default value will
be specified by the specials part number.
Calibration setup:
Description Command Parameter FD! FD!ALL
Gas calibration: GT! NITROGEN × ×
CC Vacuum adjustment: VAC3! Factory adjustment value × ×
Pressure unit: U! TORR - ×
Resetting to factory default
The factory default command resets all or certain parameters of the 971 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, VAC3
Command reply: @253ACKFD;FF