Endress+Hauser Deltabar S FMD 77 - Level Measurement (Level, Volume and Mass); Communication Protocol

Deltabar S
8 Endress+Hauser
Level measurement (level,
volume and mass)
Design and operation mode
P01xMD7xxxx-15-xx-xx-xx-000
Level measurement with Deltabar S
1 Level measurement via impulse piping and PMD 70
2 Level measurement with FMD 76
3 Level measurement via capillaries and FMD 78
h Height (level)
∆ p Differential pressure
ρ Density of the medium
g Gravitation constant
Your benefits
• Choice of three level operating modes
• Volume and mass measurements in any tank shape by means of a freely programmable characteristic curve
• Choice of level units with automatic unit conversion
• User-specified custom measuring units
• Has a wide range of uses, e.g.
– for level measurement in tanks with static pressure
– in the event of foam formation
– in tanks with agitators of screen fittings
– in the event of liquid gases
– for standard level measurement
Communication protocol
• 4 to 20 mA with HART communication protocol
• PROFIBUS-PA
– The Endress+Hauser Deltabar S devices meet the requirements as per the FISCO model.
– Due to the low current consumption of 12 mA
– up to 9 Deltabar S for EEx ia, CSA IS and FM IS applications
– up to 32 Deltabar S for all other applications, e.g. in non-hazardous areas, EEx nA, etc.
can be operated at one bus segment with installation as per FISCO.
Further information on PROFIBUS-PA, such as requirements for bus system components, can be found in
the Operating Instructions BA 198F "PROFIBUS-DP/-PA: Guidelines for planning and commissioning" and
in the PNO guideline.
• Foundation Fieldbus
– The Endress+Hauser Deltabar S devices meet the requirements as per the FISCO model.
– Due to the low current consumption of 12 mA
– up to 9 Deltabar S for EEx ia, CSA IS and FM IS applications
– up to 32 Deltabar S for all other applications, e.g. in non-hazardous areas, EEx nA, etc.
can be operated on one bus segment with installation as per FISCO.
Further information on Foundation Fieldbus, such as requirements for bus system components, can be found
in the Operating Instructions BA 013S "Foundation Fieldbus Overview".
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