Endress+Hauser Proservo NMS81
Servo tank gauging instrument
up to 0.4 mm
Process temperature-200В°C...200В°C
(-328В°F...392В°F)
up to 25 bar (363 psi) abs
Max. measurement distance47 m (154 ft)
Main wetted parts316L, AlloyC276, PTFE
- Overview
- Comments
High precision servo measurement for liquid level, interface and density.
Measuring principleServo / Float Tank Gauging
Characteristic / ApplicationServo Tank Gauging: High precision measurement for liquid level, interface, spot density, profile density
Supply / Communication85-264 VAC
Ambient temperatureStandard:
-40В°C...60В°C
40В°F...140В°F)
For calibration to regulatory
Standards:
-25В°C...55В°C
(-13В°F...131В°F)
-200В°C...200В°C
(-328В°F...392В°F)
up to 25 bar (363 psi) abs
Wetted parts316L, AlloyC276, PTFE
OutputFieldbus: Modbus RS485, V1, HART
Analog 4-20mA output (Exi/ Exd)
Relay output (Exd)
Inputs:
Analog 4-20mA input (Exi/ Exd)
2-, 3-, 4-wire RTD input
Discrete input (Exd, passive/ active)
ATEX, FM, IEC Ex, NEPSI, EAC
OptionsRedundant fieldbus
Alu-coated or 316L housing
Weather protection cover
Guide wire assembly
Relief valve
Gas purging nozzle connection
Pressure gauge
Cleaning nozzle connection
Custody transfer level measurement
Interface measurement
Spot density, density profile measurement
47 m (154 ft)
Other approvals and certificatesOIML, NMi, PTB
Measuring principleServo / Float Tank Gauging
Characteristic / ApplicationServo Tank Gauging: High precision measurement for liquid level, interface, spot density, profile density
SpecialitiesCustody transfer level measurement
Interface measurement
Spot density, density profile measurement
85-264 VAC
Accuracyup to 0.4 mm
Ambient temperatureStandard:
-40В°C...60В°C
(-40В°F...140В°F)
For calibration to regulatory Standards:
-25В°C...55В°C
(-13В°F...131В°F)
-200В°C...200В°C
(-328В°F...392В°F)
up to 25 bar (363 psi) abs
Main wetted parts316L, AlloyC276, PTFE
Process connectionFlange:
DN80/3" / DN100/4" / DN150/6"
47 m (154 ft)
CommunicationOutputs:
Fieldbus: Modbus RS485, V1, HART
Analog 4-20mA output (Exi/ Exd)
Relay output (Exd)
Inputs:
Analog 4-20mA input (Exi/ Exd)
2-, 3-, 4-wire RTD input
Discrete input (Exd, passive/ active)
ATEX, FM, IEC Ex, NEPSI, EAC
Safety approvalsOverfill protection WHG
SIL
EN 10204-3.1
NACE MR0175, MR0103
OIML, NMi, PTB
OptionsRedundant fieldbus
Alu-coated or 316L housing
Weather protection cover
Guide wire assembly
Relief valve
Gas purging nozzle connection
Pressure gauge
Cleaning nozzle connection
Stilling well or guide wires for turbulent
application
Recommend PTFE displacer for high
viscosity application
Recommend AlloyC276 displacer for corrosive application
Interface measurement requires min. difference of 0.100 g/ml
between layers
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