VortexMaster FSV430, FSV450 SwirlMaster FSS430, FSS450 | CI/FSV/FSS/430/450-EN  Rev. G  11 
 
Devices with LCD indicator and HART communication, 
order code L2 (operation through the front glass) 
 
Temperature class  T
amb.
 max.  T
medium
 max. 
T4  ≤ 60 °C  90 °C 
  ≤ 57 °C  180 °C 
  ≤ 56 °C  280 °C 
  ≤ 54 °C  400 °C 
T4  ≤ 60 °C  90 °C 
  ≤ 57 °C  180 °C 
  ≤ 56 °C  280 °C 
  ≤ 54 °C  400 °C 
T5  ≤ 56 °C  90 °C 
  ≤ 53 °C  180 °C 
  ≤ 52 °C  280 °C 
  ≤ 50 °C  400 °C 
T6  ≤ 44 °C  90 °C 
  ≤ 41 °C  180 °C 
  ≤ 40 °C  280 °C 
  ≤ 38 °C  400 °C 
 
Devices with LCD indicator and Modbus communication, 
order code L2 (operation through the front glass) 
 
Temperaturklasse T
amb.
 max.  T
medium
 max. 
T4  ≤ 60 °C  90 °C 
  ≤ 57 °C  180 °C 
  ≤ 56 °C  280 °C 
  ≤ 54 °C  400 °C 
T4  ≤ 60 °C  90 °C 
  ≤ 57 °C  180 °C 
  ≤ 56 °C  280 °C 
  ≤ 54 °C  400 °C 
T5  ≤ 40 °C  90 °C 
  ≤ 37 °C  180 °C 
  ≤ 36 °C  280 °C 
  ≤ 34 °C  400 °C 
T6  ≤ 40 °C  90 °C 
  ≤ 37 °C  180 °C 
  ≤ 36 °C  280 °C 
  ≤ 34 °C  400 °C 
 
 
 
 
2.4  Zone 0, 1, 20, 21 - type of protection "intrinsically 
safe" 
Only for devices with HART communication! 
 
2.4.1  Ex-marking 
 
ATEX 
Order code 
A4, B8, B9 
Type Examination Test Certificate  FM13ATEX0055X 
II 1 G Ex ia IIC T4 to T6 Ga 
II 1 D Ex ia IIIC T85 °C 
For electrical parameters, see certificate FM13ATEX0055X 
 
IECEx 
Order code   N2, N8, N9 
Certificate of conformity  IECEx FME 13.0004X 
Ex ia IIC T4 to T6 Ga 
Ex ia IIIC T85 °C 
For electrical parameters, see certificate IECEx FME 13.0004X 
 
FM approval for USA and Canada 
Order code   F4, F8, F9 
IS/S. Intrinseque(Entity) CL I, 
Zone 0 AEx/Ex ia IIC T6, T5, T4 
Cl I/Div 1/ABCD IS-CL II, III/DIV 1/EFG TYPE 4X 
IS Control Drawing: 3KXF065215U0109 
 
NEPSI 
Order code  
S6, S8, S9 
Ex ia IIC T4 to T6 Ga 
Ex iaD 20 T85 °C 
For electrical parameters, see certificate GYJ14.1088X 
 
Digital output 
The digital output is designed as an optoelectronic coupler or 
NAMUR contact (in accordance with DIN 19234). 
—  When the NAMUR contact is closed, the internal 
resistance is approx. 1000 Ω.  
—  When the NAMUR contact is open, the internal resistance 
is > 10 kΩ. 
The digital output can be changed over to "optoelectronic 
coupler" if required. 
—  NAMUR with switching amplifier 
—  Digital output: Ex ia: U
i 
= 30 V DC