Maintenance
7
7.1
Activities during operation
Properties
The table below describes the activities that can be performed on the ET 200iSP in Zone 1,
Zone 2, Zone 21, and Zone 22 during operation.
Requirements
WARNING
Death or severe personal injury may result if the following precautions are not taken
Hazardous location zone 1 and zone 2: You are allowed to open the enclosure of the ET
200iSP briefly for the permitted maintenance work.
Hazardous location zone 21 and zone 22: Do not open the ET 200iSP enclosure in locations
where there is combustible dust.
Permitted activities in hazardous locations
Table 7-1
Permitted activities in hazardous locations
Activities
Zone 1 Zone 2 Zone
21
Zone
22
Reference ...
Inserting and removing modules during operation (hot
swapping) in zone 1 and zone 2
X
X
Maintenance
Maintenance during operation (visual checks)
X
X
X
1
X
1
Maintenance
Cleaning
X
X
Maintenance
Removing and inserting the bus connector from terminal
module TM-IM/EM in zone 1 and zone 2
X
X
Wiring
Disconnecting the wires to the sensors, actuators, and
HART field devices on terminal module TM-EM/EM in Zone
1 and Zone 2
X
X
Wiring
Requirement for disconnecting the wires to the actuators
on terminal module TM-RM/RM in Zone 1 and Zone 2: Re‐
move the Ex d isolating plug on the TM-RM/RM. See sec‐
tion "Wiring terminal module TM-RM/RM" Wiring terminal
X
X
Wiring
Making new parameter settings and diagnostics for the ET
200iSP
X
X
Commissioning and di‐
agnostics
IM 152 firmware update via PROFIBUS DP
X
X
X
1
X
1
Maintenance
1
In areas in which there is combustible dust, the enclosure of the ET 200iSP must not be opened to perform these activities.
ET 200iSP
Operating Instructions, 11/2017, A5E00247483-07
185