Ex Certification Cases for Multifunctional On-line Monitors

Ex Marking: Ex ib db ⅡB T4 Gb

Ex Certification Standard Basis:

GB/T 3836.1-2021 Explosive Atmospheres - Part 1: Equipment - General Requirements

GB/T 3836.2-2021 Explosive Atmospheres - Part 2: Equipment Protected by Flameproof Enclosures "d"

GB/T 3836.4-2021 Explosive Atmospheres - Part 4: Equipment Protected by Intrinsically Safe "i"

Test Items:

Visual and Structural Inspection

Temperature Test

Impact Resistance Test

IP Test

Enclosure Pressure Resistance Test

Internal Ignition Non-Transmission Test

Spark Ignition Test

Dielectric Strength Test

Type Test for Diode Safety Barriers and Safety Shunts

Certificate Sample: