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.
38
Diaphragm Dosing Pump
Encore
®
MB/ME
Operating Instructions
CF.450.410.001.IM.1114
Summary of Contents for Encore MB
Page 3: ...3 Diaphragm Dosing Pump Encore MB ME Operating Instructions CF 450 410 001 IM 1114 ...
Page 48: ...48 Diaphragm Dosing Pump Encore MB ME Operating Instructions CF 450 410 001 IM 1114 ...
Page 50: ...19 Notes 50 Diaphragm Dosing Pump Encore MB ME Operating Instructions CF 450 410 001 IM 1114 ...
Page 51: ...51 Diaphragm Dosing Pump Encore MB ME Operating Instructions CF 450 410 001 IM 1114 ...
Page 52: ...Encore MB ME Diaphragm Dosing Pump MANUAL NO CF 450 410 001 IM 1114 CF 450 420 001 IM 1114 ...