MeshGuard LEL IR & CO2 IR User’s Guide 
 
42 
 
8.  Controlled Part Of MeshGuard 
 LEL IR (FTD 3000) Manual 
 
FTD-3000 LEL Certification 
 
    Cl. I, Div. 1, Gr A, B, C, D T4 
     Ta = -40° C to +50° C 
       IECEx SIR 19.0014X 
     Sira 19ATEX2035X 
     Ex ia IIC T4 Ga 
       Ex ia I Ma 
 
 
 
    Ui = 3.6V, Ci=86µF, Li/Ri=3.5µH/ohm 
 
 
 
FTD-3000 CO
2
 certification 
 
 
     Cl. I, Div. 1, Gr A, B, C, D T4 
     -20° C ≤ Ta ≤ +50° C 
       IECEx SIR 19.0014X 
     Sira 19ATEX2035X 
     Ex d ia IIC T4 Gb 
       Ex d ia I Ma 
 
 
 
U
i 
= 3.6V, C
i 
= 86µF, L
i
/R
i
 = 3.5µH/ohm 
 
EM Immunity: No effect when exposed to 0.43mW/cm
2
 RF interference (5-watt transmitter at 12"). 
 
Humidity: 0% to 95% relative humidity (non-condensing) 
 
WARNING! (cCSAus only) 
 
CERTIFICATION ONLY APPLIES FOR FIXED INSTALLATIONS. 
 
WARNING! 
 
ONLY THE COMBUSTIBLE GAS DETECTION PORTION OF THIS INSTRUMENT HAS BEEN 
ASSESSED FOR PERFORMANCE. 
 
UNIQUMENT, LA PORTION POUR DETECTOR LES GAZ COMBUSTIBLES DE CET 
INSTRUMENT A ÉTÉ ÉVALUÉE. 
 
CAUTION! 
 
HIGH OFF-SCALE READINGS MAY INDICATE AN EXPLOSIVE CONCENTRATION  OF GAS.  
 
Note: Users are recommended to refer to ISA -RP12.13, Part II-1987 for general information on 
installation, operation, and maintenance of combustible gas detection instruments.