Installation Requirements - Pfannenberg DS Série Notice De Montage

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 60079-10-1 and 22 acc. to
EN 60079-10-2. 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:
Identifi cation marking:
PDG 03.0001

Installation requirements:

The sounders are to be installed in conformity with current editions of the appropriate parts of DIN EN 60079 or in accordance
with equivalent IEC specifi cations.
EN 60079-10-1
Explosive atmospheres - Part 10-1: Classifi cation of areas - Explosive gas atmospheres
EN 60079-10-2
Explosive atmospheres - Part 10-2: Classifi cation of areas - Combustible dust atmospheres
EN 60079-14
Explosive atmospheres - Part 14: Electrical installations design, selection and erection
Applicable national constructor provisions are to be observed in the case of all work on the sounder.
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
Further Notes:
The type of protection IP 66/67 must be established after installation by means of proper and correct closing of the casing
and the use of matching cables and screwed cable glands. The sealing range of the screwed cable gland is to be adhered
to. (Original cable gland: 7 - 13mm.)
During installation the seal of the housing is to be checked for damage and function. Damage can cancel out the explosion
protection.
The housing screws (Torx-T20) are to be tightened with a torque of approximately 2 - 2,5 Nm in at least two passages cross-
wise.
Do not cover the opening of the bell mouth during operation otherwise too high surface temperatures may occur.
The opening of the bell mouth must not point upwards after installation. Replacement of the device after
10 years is recommended.
Additional safety notes:
Do not open when energised!
Do not open when there is an explosive atmosphere!
085 501 821j
Guideline 94/9/EC (ATEX 100a)
EN 60079-0: 2012
EN 60079-15: 2010
EN 60079-31: 2009
II3G Ex nAc IIC T4 -25°C  Ta  +55°C (all voltages except 24V AC)
II3G Ex nAc IIC T3 -25°C  Ta  +55°C (only 24V AC)
II3D Ex tc IIIB T135°C IP 66/67 -25°C  Ta  +55°C
M20x1,5
Blindstopfen M20
Blanking plug M20
Boîte à bourrage M20
Ø7
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30007-008-1j