Gas Explosion Group (Iia, Iib Or Iic) In Accordance With Equipment Group (Iia, Iib Or Iic); Temperature Class Of The Equipment - Atexor Slam Trans 200 EX Instructions For Safe Use

hazardous areas there are three equipment categories. Slam® -units mentioned in this
instruction fall into Category 2 equipment.
Category 1 product is suitable for use in Zones 0, 1 and 2 / (20, 21 and 22)
Category 2 product is suitable for use in Zones 1 and 2 / 21 and 22
Category 3 product is suitable for use in Zones 2 / (22)
2.1.3 Gas explosion group (IIA, IIB or IIC) in accordance with
Equipment group (IIA, IIB or IIC)
This information is vital because the substances require different amount of energy to be
ignited. Safety requirements for equipment are not the same for different substances (e.g.
static electricity requirements).Therefore making the selection easier the gases are divided to
three different groups (IIA, IIB and IIC). Further information about the substances can be
found from EN 60079-20 (Data for flammable gases and vapours, relating to the use of
electrical apparatus).
Slam® -units mentioned in this instruction are Equipment group IIC.

2.1.4 Temperature class of the equipment

Please observe the Ignition Temperature (IT) of the substance creating the explosion hazard
at your site. Select the equipment based on IT of the substance. The temperature of the
equipment must be lower than IT. The highest temperature of the equipment is specified by
using Temperature Classes T1 to T6.
Example:
Petroleum IT is approximately 250 Celsius à Maximum allowed temperature class of the
equipment is T3 (< 200° C)
Slam® -units mentioned in this instruction are Temperature Class T4 (GASES)
Slam® -units mentioned in this instruction maximum surface temperature of 70⁰C (DUSTS)
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