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APPENDIX A
FM APPROVAL DESCRIPTION
The following items, functions, and options describe the FM approval.
APPROVAL
Electrochemical Gas Detector, GT3000 Series.
Explosion Proof Model
Class I, Div. 1, Groups A, B, C, & D (T4).
Class I, Div. 2, Groups A, B, C, & D (T4).
Class I, Zone 1, AEx d mb [ia Ga] IIC T4.
IP66.
Conduit seal not required.
Acidic atmospheres excluded.
NOTE
The GTX Gas Transmitter module shall be connected directly to a junction box suitable for the area of
installation to provide protection for the flying leads.
Intrinsically Safe Model
IS Class I, Div. 1, Groups A, B, C, & D (T4).
Class I, Zone 0, AEx ia IIC (T4).
IP66.
NOTE
In order to maintain the intrinsically safe rating of the transmitter, the device must be powered through an
approved I.S. barrier.
For a list of recommended barrier models, refer to Tables 3 and 4. For additional information regarding
proper I.S. installation, refer to the Control Drawings in Appendix H of this manual.
Performance verified per ANSI/ISA 92.00.01, FM6340/41 and EN50104.