16  CI/FSV/FSS/430/450-EN  Rev. G | VortexMaster FSV430, FSV450 SwirlMaster FSS430, FSS450 
 
2.5  Zone 1, 21 - type of protection "flameproof 
(enclosure)" 
2.5.1  Ex-marking 
 
ATEX 
Order code 
A9, B9 
Type examination certificate FM13ATEX0057X 
II 2 G Ex d ia IIC T6 Gb/Ga – II 2 D Ex tb IIIC T85 °C Db 
(-40 °C < Ta < +75 °C) supply voltage 42 V DC, 
Um: 45 V 
 
IECEx 
Order code  N3, N9 
Certificate of conformity  IECEx FME 13.0004X 
Ex d ia IIC T6 Gb/Ga-Ex tb IIIC T85 °C Db 
(-40 °C < Ta < +75 °C) supply voltage 42 V DC, 
Um = 45 V 
 
FM approval for USA and Canada 
Order code  F1, F9 
XP-IS (US) CL I/DIV I/GP BCD, DIP CL II, III/DIV I/GP EFG 
XP-IS (Canada) CL I/DIV I/GP BCD, DIP CL II, III/DIV I/GP EFG 
CL I, ZONE 1, AEx/Ex d ia IIC T6 -40 °C < Ta < +75 °C 
TYPE 4X Tamb = 75 °C "Dual seal device" 
 
NEPSI 
Order code  S1, S9 
Ex d ia IIC T6 Gb / Ga 
DIP A21 Ta 85 °C 
For electrical parameters, see certificate GYJ14.1088X 
 
Power supply 
Ex d ia Gb/Ga: U
B
 = 12 ... 42 V DC 
 
 
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 d ia: U
m
 = 45 V 
 
IMPORTANT 
The power supply and the digital output must be either only 
intrinsically safe or only non-intrinsically safe. A combination of 
the two is not permitted. 
Intrinsically safe circuits must have potential equalization in 
place along the entire length of the cable of the circuit.