Pfannenberg DS Série Notice De Montage Et D'utilisation page 8

9.2 Special versions for explosion hazard zones 2 and 22: DS 5 -3G/ 3D and DS 10 -3G/ 3D
These sounders are suitable for use in an explosion-hazard environment in zones 2 acc. to EN 60079-10 and 22 acc. to
EN 61241-10. The sounders meet the requirements of the standards EN 60079-0 and EN 60079-15 as well as of the
EN 61241-0 and EN 61241-1 in their latest versions. The sounders can be used for gases of the temperature classes T1, T2, T3
and T4 as well as for environments with non-conductive dusts. The surface temperature of the housing does not exceed
+135°C.
Standard conformity: Guideline 94/9/EG (ATEX 100a)
DIN EN 60079-0
DIN EN 60079-15
DIN EN 61241-0
DIN EN 61241-1
Identification marking:
Installation requirements:
The sounders are to be installed in conformity with current editions of the appropriate parts of DIN EN 60079 for zones with a
gas-explosion hazard and DIN EN 61241 (dust-explosion hazard zones) or in accordance with equivalent IEC specifications.
DIN EN 60079-10
Electrical apparatus for explosive gas atmospheres – Part 10: Classification of hazardous areas
DIN EN 60079-14
Electrical apparatus for explosive gas atmospheres – Part 14: Electrical installations in hazardous areas (other than mines)
DIN EN 61241-10
Electrical apparatus for use in the presence of combustible dust – Part 10: Classification of areas where combustible dusts are or may be
present
DIN EN 61241-14
Electrical apparatus for use in the presence of combustible dust – Part 14: Selection and installation
Applicable national constructor provisions are to be observed in the case of all work on the sounder.
Note: The sounder is intended for a fixed installation.
The type of protection IP 67 must be established after installation by means of proper and correct closing of the casing and the
use of matching cables and screwed cable gland.
When using the original cable gland, ensure that there is strain relief in the connection cables. Otherwise, adequate explosion-
proof cable glands with seals are to be used.
The sealing range of the screwed cable gland is to be adhered to. During installation the seals are to be checked for damage
and function. Damage can cancel out the explosion protection.
The housing screws are to be tightened with a torque of approx. 1,5 Nm in at least two passages crosswise.
Do not cover the opening of the bell mouth, otherwise too high surface temperatures may occur. The opening of the bell mouth
must not point upwards after the installation of the sounder.
Sealing range of the screwed cable gland: 6 - 13 mm
Additional safety notes:
Do not open when energised!
Do not open when there is an explosive atmosphere!
In the case of work in explosion-hazard areas, the safety of persons and equipment depends upon adherence to all of the
relevant safety regulations. The following is to be observed:
- Equipment Safety Act
- National safety regulations
- National accident prevention regulations
- National construction and erection regulations
- Generally accepted rules of technology
- Characteristic values of the sounder according to the rating plate and the operating instructions
085 501 821e
II3G Ex nA II T4 -25°C ≤ T
II3G Ex nA II T3 -25°C ≤ T
II3D Ex tD A22 IP67 T135°C
M20x1,5
Blindstopfen M20
Blanking plug M20
boîte à bourrage M20
≤ +55°C (all voltages except 24V AC)
a
≤ +55°C (only 24V AC)
a
-25°C ≤ T ≤ +55°C
a
Ø7
30007-008-1e
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