Siemens SIMATIC ET 200iSP Operating Instructions Manual page 50

Configuration options
3.4 Configuration Options in Zones
Rules for configuring the ET 200iSP in Zone 2:
If you use the ET 200iSP in zone 2, you must adhere to the following rules:
1. Installation of the ET 200iSP in an enclosure with at least degree of protection IP 54. The
enclosure must have a manufacturer certification for zone 2 (in accordance with EN
60079-15: Protection from mechanical damage; degree of protection IP 54; avoidance of
ignition due to electrostatic charge). (see section "Rules for installation (Page 83)", see
appendix "Order numbers (Page 335)").
2. See points 2 to 5:
Rules for Configuring the ET 200iSP in Zone 22:
If you use the ET 200iSP in zone 22, you must adhere to the following rules:
1. Install the ET 200iSP in a metallic, dust-proof enclosure (see section "Rules for
installation (Page 83)") with at least degree of protection IP 5x (according to directive 94/9/
EU for category 3D). Additional requirements (such as surface temperature) can be found
in the certification document for the specific enclosure (refer to appendix "Order numbers
(Page 335)").
2. See points 2 to 5:
Rules for configuring the ET 200iSP in the safe area:
If you use the ET 200iSP in a safe area, you must adhere to the following rules:
1. Installation of the ET 200iSP in a metallic enclosure with degree of protection IP 20.
2. See points 2, 4 and 5:
Rules for the configuration of sensors, actuators, and HART field devices in hazardous areas.
The verification of intrinsic safety for each field circuit must be made according to the
regulations stipulated by the relevant standards for configuration, selection and installation.
A simple, intrinsically safe circuit results from attaching a sensor, actuator or HART field device
to an input or output of an electronic module.
The following table describes the conditions for checking the maximum safe values for a
simple, intrinsically safe circuit:
50
Rules for Configuring the ET 200iSP in Zone 1
Rules for Configuring the ET 200iSP in Zone 1
DANGER
Conductive dust
If the Zone 22 potentially explosive area is subject to conductive dust (for example, metal
dust), the rules for zone 21 apply.
Rules for Configuring the ET 200iSP in Zone 1
Operating Instructions, 11/2017, A5E00247483-07
ET 200iSP