DEVICE DESCRIPTION
2
9
SD 200 W/R
www.krohne.com
01/2016 - 4004155802 - AD Ex SD 200 W/R en
2.5 Approval for zone classified locations
In type of protection "Intrinsic Safety" the device meets the requirements of IEC 60079-11. The
explosion protection is ensured by limitation of the current and voltage so that no ignitable
energy can occur. The Equipment Protection Levels (EPL) Ga and Da allow the use within
Zone 0...Zone 2 and Zone 20...Zone 22 classified locations.
The marking of the display in accordance with the requirements of the ATEX directive is as
follows:
II 1 G Ex ia IIC T4 Ga and II 1 D Ex ia IIIC T100
II 1 G Ex ia IIC T4 Ga and II 1 D Ex ia IIIC T100
II 1 G Ex ia IIC T4 Ga and II 1 D Ex ia IIIC T100
II 1 G Ex ia IIC T4 Ga and II 1 D Ex ia IIIC T100
°
C Da
C Da
C Da
C Da
The marking of the display in accordance with the requirements of the IECEx scheme is as
follows:
Ex ia IIC T4 Ga and Ex ia IIIC T100
Ex ia IIC T4 Ga and Ex ia IIIC T100
Ex ia IIC T4 Ga and Ex ia IIIC T100
Ex ia IIC T4 Ga and Ex ia IIIC T100
°
C Da
C Da
C Da
C Da
The marking of the display in accordance with the Canadian and US requirements for Zone
classified locations is as follows:
Ex ia IIC / Class I, Zone 0 AEx ia IIC T4
Ex ia IIC / Class I, Zone 0 AEx ia IIC T4
Ex ia IIC / Class I, Zone 0 AEx ia IIC T4
Ex ia IIC / Class I, Zone 0 AEx ia IIC T4
Components of the Ex marking and their definition
II
IIII
II
Group II classified equipment
1111
Equipment category 1
G
G
G
G
Gas explosion protection
D
D
D
D
Dust explosion protection
Ex ia
Ex ia
Ex ia
Ex ia
Equipment protection by intrinsic safety, level of protection ia
IIC
IIC
IIC
IIC
Gas group IIC approved, suitable for gas groups IIA, IIB, IIC
IIIC
IIIC
IIIC
IIIC
Dust group IIIC approved, suitable for dust groups IIIA, IIIB, IIIC
T4
T4
T4
T4
Temperature class T4 approved, suitable for T4...T1
T 100
T 100
T 100
T 100
°
C
C
C
C
Maximum surface temperature at Ta = 70
°
C with 5 mm dust layer
Ga
Ga
Ga
Ga
EPL Ga approved, suitable in Zone 0...Zone 2
Da
Da
Da
Da
EPL Da approved, suitable in Zone 20...Zone 22
Components of the Ex marking and their definition
Class I
Class I
Class I
Class I
Gas explosion protection
Ex ia
Ex ia
Ex ia
Ex ia
Equipment protection by intrinsic safety, level of protection ia
Zone 0 AEx
Zone 0 AEx
Zone 0 AEx
Zone 0 AEx
Zone 0 approved according to US standards
IIC
IIC
IIC
IIC
Gas group IIC approved, suitable for gas groups IIA, IIB, IIC
T4
T4
T4
T4
Temperature class T4 approved, suitable for T4...T1
AD_Ex_SD_200_W_R_en_160107_4004155802_R02.book Page 9 Thursday, January 7, 2016 5:46 PM