Identification Marking; Installation Requirements - Pfannenberg DS Série Notice De Montage Et D'utilisation

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
IEC61241-1. The sounders meet the requirements of the standards EN50014 and EN50021 as well as of the EN50281-1-1 in
their latest versions. The sounders can be used for gases of the temperature classes T1, T2, T3 and T4. Please observe: When
using the sounders in areas with non-conductive dusts the surface-temperature of the sounder may not exceed +135°C.
Standard conformity: Guideline 94/9/EG (ATEX 100a)
DIN EN 50014 : 1997 + A1:1999 + A2: 1999
DIN EN 50021 : 1999
DIN EN 50281-1-1 : 1999 + A1 : 2002

Identification marking:

only 24V AC:

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 50281 (dust-explosion hazard zones) or in accordance with equivalent IEC specifications.
DIN EN 60079-14 : 1997
exception of underground excavations)
DIN EN 60079-10 : 1996
exception of underground excavations)
DIN EN 50281-1-1 : 1999 and DIN EN 50281-1-1/A1 : 2002
Electrical operating equipment with protection by casing; design and testing
DIN EN 50281-1-2 : 1999 und DIN EN 50281-1-2/A1 : 2002
Electrical operating equipment with protection by casing; selection, construction and maintenance
DIN EN 50281-2-1 : 1999
the minimum ignition temperature of dust
Applicable national constructor provisions are to be observed in the case of all work on the sounder.
Note: 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. 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. The seals are to be checked for damage and function. Damage can cancel out the explosion protection.
The housing plugs are to be tightened with a torque of approx. 1,5 Nm in at least 2 passages crosswise.
The cables and lines are to be selected with regard to the surface temperature developing and to their protected installation.
The sealing range of the screwed cable gland is to be adhered to.
Sealing range of the screwed cable gland: 8 - 12 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
8
II3G EEx nA II T4
II3G EEx nA II T3
II3D T135°C -25°C ≤ T
Electric operating equipment for gas-explosion hazard areas - Part 10: Sub-dividing of the explosion-hazard areas (with the
Electrical operating equipment for gas-explosion hazard zones - Part 14: Electrical equipment in explosion-hazard areas (with the
Electrical operating equipment for use in areas with combustible dust - Part 2-1: examination methods; methods for determining
M20x1,5
Blindstopfen M20
Blanking plug M20
boîte à bourrage M20
-25°C ≤ T ≤ +55°C
(all voltages except 24V AC)
a
-25°C ≤ T ≤ +55°C
a
≤ +55°C
a
Electrical operating equipment for use in areas with combustible dust - Part 1-1:
Electrical operating equipment for use in areas with combustible dust - Part 1-2:
Ø7
30007-008-1a
143
085 501 821a