美卓定位器

Local User Interface (LUI)
CONFIDENTIAL
Single flapper with light aluminium coil structure. Excellent vibration characteristics due to balanced masses.
16
© Metso Date Author Title
Contactless and freely rotating shaft. No vibration effects, no wear, protected against humidity.´The A/D resolution is 4096 steps. Accurate pressure sensing is vital for the smooth control and effective valve condition monitoring
• Updated when:
All the time when the device is powered
• Indicates about:
- Correct sizing of the valve • Notice: - Especially useful when optimising
plant operation or replacing old control valves
- dead time - step response time (T86) - overshoot - gain
• Indicates
- control performance - Stability - operation speed
27
© Metso

company/metso
UNCLASSIFIED
Lifecycle diagnostics
Dynamic State Deviation example—
warning limit
Valve friction has increased!
2 1
© Metso
Spool valve position trend example-
• Indicates:
To analyze possible problems with supply pressure To monitor pressure values that exceed device specifications
2 3
© Metso
Lifecycle diagnostics-Valve position histogram trend—
ND9000
Separate valve controller board and communication board
ND9000
• Double black lacquering
to protect components
• Impact and drop tested
- 1 meter fall to concrete
• •
Updated when:
-
All the time when the device is powered Average operation point of the valve during past 24h Used to track down changes in plant operation
• Updated when:
- setpoint is changed or valve
position is moving
• Indicates about
- Can be used to estimate
valve dynamics such as response times
Notice
- Possible stiction - Process conditions - Small supply air capacity
Notice • Absolute value is not important only changes should be monitored • If process conditions are NOT changed and valve position is slowly increasing this means build up in the control valve • If process conditions are NOT changed and valve position is slowly decreasing this means erosion in closing element
© Metso
MAPAG
400 300 200 100 -270
© Metso
Pressure bar
Size range: NPS 4 (DN 50) to NPS 100 (DN 2500) Materials: A to Z (Aluminium to Zirconium)
-40
600
Temperature °C
I/O
RS 485 HART
Valve Manager
I/O
HART Mux
4..20 mA & HART
4..20 mA & HART
HART
DCS
© Metso
ND9000
ND9000
© Metso
15
ND9000
Prestage Unit Mech. and Digital Position Indicator
• Setpoint reversals--• Valve reversals--• Valve reversals while stable setpoint – • Valve position--• Counter—
2 5
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Counter Diagnostics
Daily valve position trend -
Indicates about:
2 6
© Metso
Valve offline tests --Multipoint step test
• Possibility to run 10 steps in
one test • Calculates accurate key figures from the test data
Neles SwitchGuard
11
© Metso
U. Gensicke / smart products
ND9000
• • •
(I/P)
•
Profibus Hart DCS
© Metso
FF
ND9000
DCS
-> -> HART
DCS DCS
Valve Manager
I/O
4..20 mA
I/O
Neles FieldCare
MAPAG
© Metso 9
“
”
10
© Metso
Smart Products Control valves Neles ND7000
Valves Safety valves ON/OFF valves Standard ON/OFF Neles ValvGuard
metsoworld
metsogroup
metsoworld
metsogroup
1450
ND Switchguard B
VPVL
Valvguard
AXIOM
Stonel
QP
© Metso
• • • • • • • • • • •Biblioteka 75% 70% 65% 40%
150,000 250,000 Neles 700,000 Neles 1,000,000 Neles 5,000,000 Jamesbury 40,000 2,000 MAPAG
66
2011 30000
50
•
(MBL) (CBL)
(M&C)
•
(PAS) FC
© Metso
, , , , ,
© Metso
© Metso
ROTARYGLOBE
Top5
NELDISC
FINETROL RE
© Metso
Neles
Neles
Neles
Jamesbury Jamesbury 4000 Jamesbury 7000/
Spool Valve Assembly
Hart, Profibus PA and Foundation Fieldbus Communication Board
Connection for 4-20 mA output
Valve Controller Board
UNCL ASSIFI ED
© Metso
Actuator membrane has failed, leakage increasing!
2 2
© Metso
Lifecycle diagnostics --Supply pressure trend ----
• Updated when
All the time when the device is powered
Double black lacquering to protect components. Temp range -40 to +85 °C
Positioner supply pressure range 1.4 to 8 bar (20 -115 psi). Wide capacity range - 5.5, 12 and 38 Nm3/h at 4 bar. (Spool 2,3 and 6)
-
ND9000 Revision 2 also includes Daily valve position trend to indicate changes in valve condition or operation
2 4
© Metso
Counter Diagnostics—
Trend collection
resulting from e.g. small spool, small pipes or dirty supply air filter
20
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• • • •
Absolute value is not important only changes should be monitored In on-off application gives high values Changes in the operation of the valve influences the trend Supply pressure level, performance level, calibration and tuning of the device effects the trend
• Full operating temperature
range -40 to +85 °C
© Metso
ND9000
• • • • •
© Metso
ND9000
Adobe Acrobat Document
-
) )
© Metso
Lifecycle diagnostics—
Dynamic state deviation