ES-817 Rev. D
Copyright 2020. This document and all information herein are the property of Dresser LLC
Page 7 of 14
7
Agency Markings
7.1
Agency Approvals
Agency testing, and approval process was performed by Intertek Testing Group.
Flameproof/ExplosionProof) for Gas
Temperature Classification
IEC
Ex db ia IIC T6…T4 Gb
T4 Ta= -55°C to 85°C
ATEX
II 2G Ex db ia IIC T6...T4 Gb
T5 Ta= -55°C to 75°C
US/NEC
Class I, Division I, Groups A, B, C, D T6...T4
T6 Ta= -55°C to 60°C
Class I, Zone 1, AEx db ia IIC T6...T4 Gb
Can/CEC Class I, Division I, Groups, A, B, C, D T6…T4
Class I Zone 1, Ex db ia IIC T6…T4 Gb
Protection by Enclosure (Explosive Dust)
Temperature Classification
IEC
Ex ia tb IIIC T
200
91°C Db
T4 Ta= -55°C to 85°C
ATEX
II 2D Ex ia tb IIIC T
200
91°C Db
T5 Ta= -55°C to 75°C
US/NEC
Class II Division 1 Groups E, F, G T6...T4
Class III
Zone 21, AEx ia tb IIIC T
200
91°C Db
T6 Ta= -55°C to 60°C
Can/CEC Class II Division 1 Groups E, F, G T6…T4
Class III
Zone 21, Ex ia tb IIIC
T
200
91°C
Db
Intrinsically Safe (Explosive Gas) – Base Positioner
Temperature Classification
IEC
Ex ia IIC T6...T4 Ga
T4 Ta= -55°C to 85°C
ATEX
II 1G Ex ia IIC T6…T4 Ga
T5 Ta= -55°C to 75°C
US/NEC
Class I, Division I, Groups A, B, C, D T6...T4
T6 Ta= -55°C to 60°C
Class I, Zone 0, AEx ia IIC T6...T4 Ga
Can/CEC Class I, Division 1, Groups A, B, C, D T6…T4
Class I, Zone 0, Ex ia IIC T6…T4 Ga
Intrinsically Safe (Explosive Gas) – Options Module Installed
Temperature Classification
IEC
Ex ia IIC T6...T4 Ga
T4 Ta= -55°C to 85°C
ATEX
II 1G Ex ia IIC T6…T4 Ga
T5 Ta= -55°C to 65°C
US/NEC
Class I, Division I, Groups A, B, C, D T6...T4
T6 Ta= -55°C to 50°C
Class I, Zone 0, AEx ia IIC T6...T4 Ga
Can/CEC Class I, Division 1, Groups A, B, C, D T6…T4
Class I, Zone 0, Ex ia IIC T6…T4 Ga
Intrinsically Safe (Explosive Dust) – Base Positioner
Temperature Classification
IEC
Ex ia IIIC T
200
91°C Da
T4 Ta= -55°C to 85°C
ATEX
II 1D Ex ia IIIC T
200
91°C Da
T5 Ta= -55°C to 75°C
US/NEC
Class II Division 1, Groups E, F, G T6...T4
Class III
Zone 20, AEx ia IIIC T
200
91°C Da
T6 Ta= -55°C to 60°C
Can/CEC Class II Division 1 Groups E, F, G T6…T4
Class III
Zone 20, Ex ia IIIC T
200
91°C Da
