Appendix
Proof of compliance with explosion protection regulations
Beck GmbH
Druckkontrolltechnik
Ferdinand-Steinbeis-Straße 4
71144 Steinenbronn
Operating instructions – Pressure Switch – Model - 901...EX
Rev.10
Page 18 of 18
9.5 Proof of compliance with explosion protection regulations
Project
Name
Date
Requirement
Complies with
Requirement
Complies with
Application area
II
(Gas)
III
(Dust)
II
(Gas)
Temperature
class (Gas)
Temperature
class (Gas)
Temp.
(Dust)
T1
T1
400
o
C
T2
T1-T2
300
o
C
Explosion
group
A
A
T3
T1-T3
200
o
C
B
A,B,C
A,B
T4
T1-T4
135
o
C
C
A,B,C
A,B,C
T5
T1-T5
100
o
C
T6
T1-T6
85
o
C
Requirement
Permitted Equip.
Protection Level
EPL (G=Gases)
Certified for
Ignition protection class
Zone
2,22
Gc,Dc
Zone 2/22
1,21
Gb,Db
Zone 1,2 /21,22
Ex ia IIB / Ex ia IIIB
0,20
Ga,Da
Zone 0,1,2/ 20,21,22
Ex ia IIC
CHARACTERICTICS
Intrinsically safe operating materials
Associated operating
materials
Designation
Pressure switch
Cable
Switch amplifier
Model
901 ..EX
Application area
2G
2D
1/2G
Ignition protection class
Ex ia … Gb Ex ia…Db
Ex ia.. Ga
Explosion group
IIC
IIIB
IIB
Temperature class
T4
T135C
T4
Certification
BVS 06 ATEX E141X
U
i,a
30V
I
i,a
60mA
P
i,a
600mW
L
i,a
0
1mH
C
i,a
0
0,1µF
Kabelkennwerte: 1
mH
/
km
; 110
nF
/
km
Requirement complied with
Application area
Ignition protection class
Explosion group
Temperature class
Equipment Protection Level EPL/Zone
Proof of intrinsic safety
Associated operating mate-
rials
(barriers)
Require-
ment
Intrinsically safe operating
materials
(including cable)
Com-
pliant
U
≤
30V
I
≤
60mA
P
≤
600mA
L
≥
1mH
(1km cable)
C
≥
0,1µF
(1km cable)