Baker Hughes Masoneilan 12400 Series, Инструкция по эксплуатации и руководство по безопасности

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APPENDIX C
SCREEN DESCRIPTION FOR ADVANCED SETUP MENU – 1/2
ADV ANCED SETUP
Validate by pressing the * to enter the Advanced Setup menu.
FAIL SAFE POSITION
DIR ECTION
Validate by pressing the * to define the failsafe position direction in case of activation of Failsafe
mode (severe faults).
FAIL SAFE POSITION LOW
Define the failsafe position in case of severe faults. The instrument will generate a current safety
signal below 3.6 mA.
Fail Low position in mandatory for SIL certified instruments
FAIL SAFE POSITION HIGH
Define the failsafe position in case of severe faults. The in strument will generate a current
safety signal above 21 mA. Fail High position is not available for SIL certified instruments (Fail
Low mandatory)
SAVE
Validate by pressing the * to start the saving procedure of parameters previously entered in the
instrument memory.
CANCEL
Validate by pressing the * to cancel the parameters saving procedure.
VAR IABLE SET UP
Validate by pressing the * to enter the sub-menu to set the additional variables.
MA LOW
Validate by pressing the * to adjust the current equivalent to the Low Level position (REF L). The
value, generally 4 mA, must be between 3.8 mA and the high current signal value (MA HIGH).
MA HIGH
Validate by pressing the * to adjust the current equivalent to the High Level position (REF H).
The value, generally 20 mA, must be between the low current signal value (MA LOW) and 20.5
mA.
ENG INEERING UNIT:%
Validate by pressing the * to enter the sub-menu to define the level variable and select the
desired engineering unit (usually %).
Z ERO SHIFT:%
Validate by pressing the * to set the zero of a reduced range. In case of an interface instrument,
when the Specific Gravities of Service [LSG SER] and [HSG SER] are different from those of
Calibration [LSG CAL] and [HSG CAL], zero shift is automatically set to the value resulting from
formula :
([LSG SER)- [LSG CAL])/ ([HSG SER]-[LSG SER])
Value ranges from -9999.9% to +9999.9%.
R EDUCED SPAN: %
Validate by pressing the * to set the span of a reduced range. Value ranges from 0.0% to 99%.
↓
C ON TR O L LER
Validate by pressing the * to enter the Controller sub-menu and define if the Controller function
is activated or not.
Note: only the Transmitter function is SIL certified.
C ON TR O L LER ON
The Controller function is activated
C ON TR O L LER OFF
The Controller function is not activated
SIG NAL GENE RATOR
Validate by pressing the * to enter the sub-menu allowing to generate a loop current to a
defined value independently of true level measurement.
DAMPING
Validate by pressing the * to enter the Damping menu. This is a first order filtering function
which operates on the output current signal.
DAMPI NG ON
Activate first order Filtering function.
DAMPI NG OFF
Deactivate first order Filtering function.
DAMPING:s
Validate by pressing the * to set the damping parameter which is a T63 time: time taken for a
63% response to a level step change. Damping time can be set between 0.1 s and 32 s.