2
INSTALLATION
8
MS15 - MS40 SERIES
www.krohne.com
06/2020 - 4007717401 - AD ATEX MS15-MS40 R01 en
2.2 Operating conditions
2.2.1 General notes
2.2.2 Ambient and service temperatures
Ambient and service temperature ranges of the limit switches are given in the table that follows.
If a cable gland and an electrical cable are not supplied, use a cable gland and an electrical cable
approved for continuous operation that agree with the appropriate service temperature range of
the limit switch.
DANGER!
Make sure that the device and adjacent objects do not rub together.
Make sure that all personnel and equipment are correctly grounded.
If dirt collects on the device, clean it with a damp cloth.
ESD warning
Figure 2-1: ESD warning (on the device nameplate)
1
Text: Warning! Potential electrostatic hazard
–
see instructions
WARNING!
An explosive atmosphere is a mixture of air and flammable gases, vapour, mist or dust in
atmospheric conditions. If you do not use the device in these conditions (T
atm
= -20...+60
°
C and
p
atm
= 0.8...1.1 barg), do an analysis of the risk of ignition.
T
atm
= atmospheric temperature and p
atm
= atmospheric pressure.
Version
Approval
Ambient temperature
range
Service temperature range
[
°
C]
MS15 series
Ex ia
-40...+80
-40...+115
Ex db
-60...+80
-60...+115
MS40 series
Ex ia
-40...+80
-40...+120
