Abnormal Operation - Edwards RV3 Instruction Manual

3

ABNORMAL OPERATION

The following usage of the equipment is prohibited:
Use of the equipment in a zone with a higher ATEX category than that applied to the equipment (for
example, using category 2 equipment in a category 1 system).
Use of the equipment as a positive pressure compressor.
Use of the equipment whilst subjected to high back pressure (for example, as caused by an exhaust line
blockage).
Reverse rotation of the pump.
Pumping of or use in the presence of potentially flammable or explosive dust atmospheres.
Use in ambient conditions other than those specified in
Pumping of pyrophoric materials.
Pumping gases that cause the inlet pipeline to exceed a surface temperature of 40 °C.
Pumping of hydrocarbon oxides.
Pumping of gases that tend to self decompose or are chemically unstable.
Pumping of IIC gases.
Use with materials with auto ignition temperatures below the defined temperature rating.
Operation such that the pump inlet temperature falls below the dew point of a flammable vapour. This could
lead to condensate that can collect and lead to the risk of corrosion or an ignition hazard.
Use with oxygen enriched atmospheres.
Use in an external atmosphere where there is a potentially flammable dust atmosphere.
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Edwards and the Edwards logo are trademarks of Edwards Limited.
Section 4.3 of this manual.
A652-18-880 Issue C
Page 7