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Diaphragm Dosing Pump Encore
MB/ME
®
Operating Instructions
12. Explosion-proof dosing pumps (ATEX)
12.1 General
®
The explosion-proof version of the Encore
ME dosing pump is an electric motor-driven, explosion-proof diaphragm dosing pump of equipment category 2, group
II.
In combination with an explosion-proof motor (Ex II 2 G E Ex e II T3 or Ex II 2 G E Ex d/de IIB/IIC T4) it is used for dosing fluids Zone 1 hazardous areas. The dos-
ing pump carries the Ex mark "Ex II 2 G c k T4 03 ATEX D085".
ATTENTION!
The dosing pump is not intended for dosing gaseous media or solids.
DANGER!
®
Fire hazard. Shock wave: parts may fly off and cause fatal injury. Encore
MB must never be used in areas with a potentially explosive atmosphere.
12.2 Special conditions
The minimum requirements for the zone classification must be ensured if using the dosing pump in areas with a potentially explosive atmosphere. The dosing
pump itself and the motor must meet the minimum requirements.
12.3 Dosing of flammable media
If dosing flammable fluids, all metal parts in the suction and discharge pipes must be grounded to prevent electrostatic discharge.
Stainless steel is recommended for the dosing head.
Dosing pumps with diaphragms more than 3.5 in. in diameter are equipped with special conductive diaphragms to prevent static charging. When obtaining
replacement parts, order original diaphragms only.
CF.450.410.001.IM.1114
38
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