Sensor Cables And Conductivity Of Medium; Minimum Accept Data For Cable; Hart Communication Add-On Module; Cable Data (Supplied By Siemens Flow Instruments) - Siemens MAG 1100 Handbook

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SITRANS F M MAGFLO
2.8.1
Sensor cables and
conductivity of medium
2.8.2
Minimum accept data for
cable
2.9
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HART communication
add-on module
Cable specification
2.10
Cable data
(Supplied by Siemens
Flow Instruments)
18
2. Technical data
Conductivity of Compact installation:
Liquids with an electrical conductivity ≥ 5 µS/cm.
medium
For a conductivity between 5 and 10 µS/cm, the repeatability may degrade to
±0.5% of actual flow.
Remote
installation:
Note
For detection of empty sensor the min. conductivity must always be ≥ 20 µS/cm and the max. length
of electrode cable when remote mounted is 50 metres. Special cable must be used.
For remote mounting in Ex applications special cable cannot be used, empty sensor cannot be
detected and the electrically conductivity must be ≥ 30 µS/cm.
For remote mounted CT installations the max. cable length is 200 metres.
Basic data No. of conductors
Min. sqr. area
Screen
Max. capacitance
Max. cable loop Media temperature:
resistance
Application
Communication standard
Communication modes
Communicator
2
Q [mm ] CU
Screen
Loop resistance Min.
Max.
Cable capacity
Cable length
Twisted pair
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HART is a registered trademark of the HART Communication Foundation.
Basic data No. of conductors
Sqr. area
Screen
Color code
Outside color
Ext. diameter
Conductor
Isolation material
• Flexible installation
Amb. temperature
• Non flexible installation
Cable parameter Capacity
Inductance
L/R
DKFD.PS.027.W3.02
Standard cable
Coil cable
0.5 mm
< 100°C
< 200°C
MAG 6000, MAG 6000 CT
Optional available as factory mounted in MAG 5000
Bell 202 frequency shift keying (f.s.k.) standard
• Single loop mode
• Multi-drop mode, 15 slave devices
Rosemount Hand-held communicator type 275
Communication mode / Single loop
≥ 0.2 mm
2
/AWG 24
Yes (Overall screen)
230 Ω
800 Ω
≤ 400 pF/m
1500 m
Yes
Standard cable
(electrode/coil)
1.5 mm
Brown, blue, black
Flexible CU
−5 to 70°C
−30 to 70°C
161.50 pF/m
0.583 µH/m
43.83 µH/Ω
Special cable
Electrode cable
2 3
2 2
0.2 mm
Yes Yes
N.A. 350 pF/m
40 Ω
N.A.
6 Ω
N.A.
Special cable
(electrode)
3 3
2
0.25 mm
Yes Double
Brown, blue, black
Grey Grey
7.8 mm 8.1 mm
Flexible CU
PVC PVC
−5 to 70°C
−30 to 70°C
N.A.
N.A.
N.A.
2