KROHNE SMARTMAC 200 W, Supplementary Instructions Manual

Page: 8 / 16

2
DEVICE DESCRIPTION
8
SMARTMAC 200 W
www.krohne.com 09/2017 - 4005599202 - AD Ex SMARTMAC 200 en R02
2.4 Approval for division classified locations
In type of protection "Intrinsic Safety" the device meets the requirements of Canadian and US
standards for the Division concept according to NEC 500. The explosion protection is ensured by
limitation of the current and voltage so that no ignitable energy can occur.
The marking of the display in accordance with the requirements of the applicable National
Electrical Code (NEC 500) and the Canadian Electrical Code (CEC) is as follows:
IS Class I, Division 1, Groups A, B, C, D, T4 IS Class I, Division 1, Groups A, B, C, D, T4 IS Class I, Division 1, Groups A, B, C, D, T4 IS Class I, Division 1, Groups A, B, C, D, T4
2.5 Temperature classes
The permissible temperature range of the device for use in temperature class T4...T1 is:
The maximum permissible temperature is valid under the following conditions:
• The device is operated in its intended mounting position.
• The device is not exposed to heat radiation (e.g. direct sunlight, adjoining hot parts).
• Insulation does not obstruct the ventilation of the device.
Components of the Ex marking and their definition
IS
IS IS
IS Intrinsically safe equipment
Class I Class I Class I Class I Explosion protection for gas
Division 1
Division 1 Division 1
Division 1 Division 1 approved, suitable for Division 1, Division 2
Groups A, B, C, Groups A, B, C, Groups A, B, C, Groups A, B, C,
D
D D D
Gas groups A, B, C and D approved
T4
T4 T4
T4 Temperature class T4 approved, suitable for T4...T1
Temperature-
class Permissible ambient temperature in
[
°
C]
Permissible ambient temperature in
[
°
F]
T4...T1 -40...+55
°
C -40...+131
°
F