Technicalйdata
ProlineйPromagйDй400йHART
126
Hauser
16
Technical data
16.1 Application
TheйmeasuringйdeviceйdescribedйinйtheseйInstructionsйisйintendedйonlyйforйflow
measurementйofйliquidsйwithйaйminimumйconductivityйofй5йμS/cm.
Dependingйonйtheйversionйordered,йtheйmeasuringйdeviceйcanйalsoйmeasureйpotentially
explosive,йflammable,йpoisonousйandйoxidizingйmedia.
Toйensureйthatйtheйdeviceйremainsйinйproperйoperatingйconditionйforйitsйserviceйlife,йuseйthe
measuringйdeviceйonlyйforйmediaйagainstйwhichйtheйprocess-wettedйmaterialsйare
adequatelyйresistant.
16.2 Function and system design
Measuringйprinciple
Electromagneticйflowйmeasurementйonйtheйbasisйofй
Faraday's law of magnetic induction
.
Measuringйsystem
Theйdeviceйconsistsйofйaйtransmitterйandйaйsensor.
Twoйdeviceйversionsйareйavailable:
• Compactйversionй-йtheйtransmitterйandйsensorйformйaйmechanicalйunit.
• Remoteйversionй–йtheйtransmitterйandйsensorйareйmountedйseparatelyйfromйoneйanother.
Forйinformationйonйtheйstructureйofйtheйdeviceйс ййй12)
16.3 Input
Measuredйvariable
Direct measured variables
Volumeйflowйсproportionalйtoйinducedйvoltage)
Calculated measured variables
Massйflow
Measuringйrange
Typicallyйvй=й0.01йtoй10йm/sйс0.03йtoй33йft/s)йwithйtheйspecifiedйaccuracy
Electricalйconductivity:й5йtoй10
й
000йµS/cm/cm
Flow characteristic values in SI units
Nominal
diameter
Recommended
flow
Factory settings
min./max. full scale value
(v ~ 0.3/10 m/s)
Full scale value current
output
(v ~ 2.5 m/s)
Pulse value
(~ 2 pulse/s)
Low flow cut off
(v ~ 0.04 m/s)
[mm]
[in]
[dm
3
/min]
[dm
3
/min]
[dm
3
]
[dm
3
/min]
25
1
9йtoй300
75
0.5
1
40
1й½
25йtoй700
200
1.5
3
50
2
35йtoй1
й
100
300
2.5
5
65
–
60йtoй2
й
000
500
5
8
80
3
90йtoй3
й
000
750
5
12
100
4
145йtoй4
й
700
1
й
200
10
20
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