Liner Selection - Siemens SITRANS F M MAG 3100 Operating Instructions Manual

Technical data

8.4 Liner selection

Conductivity
of medium
For detection of empty sensor the min. conductivity must always be >50 μS/cm and the
max. length of the electrode cable when remote mounted is 50 meters (164 ft). Special
cable must be used!
For 19" Ex applications with safety barriers special cable cannot be used and the empty
pipe function can therefore not be used. For these applications 25 meters (82 ft) of cable
can be used in order to obtain 0.25% and 50 meters (164 ft) to obtain 0.5%.
For remote MID installations the max. cable length is 3 meters (9.8 ft). For other CT
application standard requirements are applicable.
8.4 Liner selection
Liner
EPDM
Ebonite
PTFE
PFA
Linatex
Neoprene
56
Special cable
[µS/cm]
50
40
30
20
10
5
50 100 200
150 300 600 900
Cable length
WARNING
300 400 500
[m]
1200 1500
[ft]
Applications
Drinking Water, Low abrasive media, Food & Beverage
Drinking Water, Wastewater, Fine low abrasive media
Drinking Water, Wastewater, Chemicals, Food & Beverage,
Pulp & Paper
Drinking Water, Wastewater, Chemicals, Food & Beverage,
Pulp & Paper
Abrasive media
Drinking Water, Wastewater, Abrasive media, Chemicals
SITRANS F M MAG 3100
Operating Instructions, 06/2010, A5E03005599-01