Ex Marking; Specifications And Temperature Limits - WIKA 831 Manual De Instrucciones

3. Safety
Do not dispose of with household waste. Ensure a proper disposal in accord-
ance with national regulations.

3.8 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.
▶ Observe the safety instructions in this chapter and further explosion protec-
tion instructions in these operating instructions.
▶ Observe the information given in the applicable type examination certifi-
cate and the relevant country-specific regulations for installation and use in
hazardous areas (e.g. IEC 60079-14, NEC, CEC).
Check whether the classification is suitable for the application. Observe the relevant national
regulations.
Instruments without PTFE lining
Ex area
Zone 1 gas
Zone 21 dust
Zone 21 dust
Instruments with PTFE lining
Option with models: PGS43.1x0, 432.56
Ex area ATEX
Zone 1 gas II 2G

3.9 Specifications and temperature limits

Ingress protection per IEC/EN 60529
For information on the ingress protection of the respective instrument, see chapter
9 "Specifications". For the IECEx assessment, IP20 ingress protection was assumed.
Permissible temperature range
For determining the maximum temperature at the instrument, besides the medium
temperature also other influences such as the ambient temperature and, if applicable, the
solar irradiation must be taken into account.
Pressure gauges with inductive contact model 831, for hazardous areas
Nominal size
NS 50, 63, 100, 160
NS 50, 63
NS 100, 160
IECEx
Ex ia IIB T6/T5/T4 Gb
ATEX IECEx
II 2G Ex ia IIC T6/T5/T4 Gb
II 2D Ex ia IIIB T95°C/T135°C Db
II 2D Ex ia IIIB T135°C Db
EN
9