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Technical specifications
7.6 Technical specifications for operation in hazardous areas
Gas inlet conditions
Permissible sample gas pressure
Sample gas flow
Sample gas temperature
•
For non-heated gas connection
•
For heated gas connection
Temperature of measuring cell
Temperature of gas connection with heated gas
inlet
Sample gas humidity
Purging gas pressure
7.6
Technical specifications for operation in hazardous areas
The following tables show the data relevant to explosion protection. If the values shown here
differ from the general or device-specific technical specifications, the values specified here apply.
Position of use
Danger zone
Ambient temperature
Moisture
Explosion protection
Assignment of pressurized enclosure Ex px with leakage compensation:
Ignition protection type •
Temperature class *)
62
800 to 1100 hPa (11.6 to 16 psi) absolute
30 to 90 l/h (0.5 to 1.5 l/min)
0 to 50 °C (32 to 122 °F)
0 to 80 °C (32 to 176 °F)
60 °C (140 °F)
Approx. 70 °C
< 90% RH (relative humidity), non-condensing
< 165 hPa
Zone 1 and zone 2
5 ... 45 °C
No cooling below dew point during storage and operation
Pressurized enclosure Ex px with leakage compensation: (Analyzer versions
7MB251x-xxx0x-xAEx, 7MB253x-xxxx-xxEx, 7MB201x-xxx0x-2xxx or -3xxx
and 7MB211x–xxxxx–2xAx or -3xAx)
•
Pressurized enclosure Ex px with continuous purging: (Analyzer versions
7MB251x-xxx0x-xAFx, 7MB253x-xxxx-xxFx, 7MB201x-xxx0x-6xxx or -7xxx
and 7MB211x–xxxxx–6xAx or -7xAx)
•
Intrinsic safety i for keyboard isolation component and PROFIBUS PA output
option
Device
O 6F, unheated
O 6F, heated
U 6F
C 6F
Compact Operating Instructions in accordance with EN 61010-1 and EN 60079-0
Compact Operating Instructions, 09/2018, A5E45779389002-01
Ex px with leakage com‐
pensation
T4
T3
T4
T4
Ex px with continuous
purging
T4
T3
T6 (T4 with PROFIBUS PA
module)
T4
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