1. Ex marking
Supplementary documentation:
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This additional information for hazardous areas applies in conjunction with the operating
instructions "Differential pressure gauges, models DPG40, DPGS40 and DPS40", article
number 14093265.
EN
Explanation of symbols
DANGER!
... indicates a potentially dangerous situation in the hazardous area that can
result in serious injury or death, if not avoided.
1. Ex marking
DANGER!
Danger to life due to loss of explosion protection
Non-observance of these instructions and their contents may result in the
loss of explosion protection.
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Check whether the classification is suitable for the application. Observe the relevant
national regulations.
Marking
II 2G c IIC T4/T5/T6 X
II 2D c T85°C/T100°C/T135°C X
Permissible temperatures depending on the temperature class
Temperature class Gas
application
T6
T5
T4
4
Observe the safety instructions in this chapter and further explosion
instructions in these operating instructions.
Follow the requirements of the ATEX directive.
Observe the information given in the applicable type examination certif-
icate and the relevant regulations for installation and use in hazardous
areas (e.g. IEC 60079-11, IEC 60079-10 and IEC 60079-14).
Temperature class Dust
application
≤ 85 °C
≤ 100 °C
≤ 135 °C
Maximum permissible
medium temperature (in the
measuring system)
65 °C
80 °C
90 °C
WIKA additional information Ex c for model DPG40