Pfeiffer Vacuum DUO 250 A Operating Instruction Download Page 1

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Rotary Vane Pumps

0010 BE/C (0511)

UNO/DUO 250 A

Betriebsanleitung • Operating Instructions

Summary of Contents for DUO 250 A

Page 1: ...Rotary Vane Pumps PD 0010 BE C 0511 UNO DUO 250 A Betriebsanleitung Operating Instructions...

Page 2: ...10 4 2 Switching The Pump ON And OFF 11 4 3 Operating The Pump With Gas Ballast Valve 11 4 3 1 Standard Model 11 4 3 2 Corrosive Gas Model 11 4 4 Pumping Off Dry Gases 12 4 5 Pumping Off Vapours 12 5...

Page 3: ...on the pump When returning the pump to us please note the shipping instructions in Section 7 1 1 For Your Orientation Instructions in the text Operating instructions Here you have to do something Symb...

Page 4: ...s and sight glasses made from special materials Option Special gas ballast valve for inert gas inlet N2 to prevent atmospheric air entering the system Improper Use The following are regarded as improp...

Page 5: ...For Installation Do not carry out any unauthorised conversions or modifications on the pump Fill up with operating fluid before operating the first time included in a separate pack in the delivery co...

Page 6: ...eve strainer from vacuum flange 1 and exhaust flange 2 Switch on pump for a short time max 3 seconds Motor motor fan must turn clockwise see arrow P on motor fan cover If direction of rotation is inco...

Page 7: ...Current Motor Circuit The three phase motor winding consists of three identical coils Delta Connection The three coils are connected in series with the connection point connected to the mains The vol...

Page 8: ...69 Locking screw for connecting the gas ballast valve when no valve is fitted 45 169 122 132 133 135 126 128 118 134 136 168 138 Important The instructions in 4 1 2 must be observed when working with...

Page 9: ...pecial gas ballast valve with dosing device and hose connection for flushing gas is available on request Corrosive Gas Models Corrosive gas models are manufactured with special materials The rotor sha...

Page 10: ...switched on 4 Operations Rotary Vane Vacuum Pumps UNO DUO 250 A 1 Vacuum flange 2 Exhaust flange 3 Motor 5 Socket for control voltage 15 Casing 28 Support stand 42 Operating fluid filler screw 43 Ope...

Page 11: ...e Gas Model Gas ballast valve 45 is fitted with a dosing device and a flushing gas connection It has a sliding sleeve which opens the valve when pushed towards the pump and shuts the valve when pushed...

Page 12: ...Request repair by Pfeiffer Vacuum Service Pump doesn t start Ambient temperature 12 C Warm up pump Dirty pump stages Request cleaning by Pfeiffer Vacuum Service Damaged pump stages Request repair by P...

Page 13: ...perating fluid should be changed every 8000 h at least once a year Replacing The Operating Fluid Switch off the pump Unscrew operating fluid drain screw 43 and drain operating fluid The operating flui...

Page 14: ...pletely clockwise Slowly open the valve spindle 47 1 2 to a complete turn until the knocking noise is no longer audible Replace locking screw 46 or operating fluid filler screw 42 paying attention to...

Page 15: ...is dusty Dismantling and assembling the Standard Model Unscrew valve housing 68 at hexagon nut take care with the O ring 31 if necessary proceed as follows Remove circlip 59 and pull off sleeve 61 in...

Page 16: ...e gas models 13 Silencer 14 Non return valve 28 Support stand 31 O ring 34 Cover 47 Valve spindle 48 O ring 49 O ring 50 Valve housing 51 Plate spring 52 Screw 53 O ring 54 Screw 55 Insert 56 Screw 57...

Page 17: ...n operating fluid drain screw 43 keep an eye on the position of the O ring Allow pump to run for about 10 seconds with open vacuum flange Drain off remaining operating fluid Fill up pump with fresh op...

Page 18: ...ation work Units which are contaminated microbiologically explo sively or radioactively cannot be accepted as a matter of principle Fill Out The Contamination Declaration In every case the Contaminati...

Page 19: ...ity 50 Hz g h 5100 4350 60 Hz g h 6000 5200 Emission sound pressure level without gas ballast dB A 75 75 Operating fluid amount l 30 23 Max admissible operating temperature 1 C 90 90 Nominal rotation...

Page 20: ...the full part number When ordering spare parts please state additionally the unit type and unit number see rating plate Please use this list as an order form by taking a copy Pos Description Quantity...

Page 21: ...he repair and or service of vacuum components will only be carried out if a correctly completed declaration has been submitted Non completion will result in delay The manufacturer could refuse to acce...

Page 22: ...the product specified below is in accordance with the provision of EU Machinery Directive 98 37 EEC EU Electromagentic Compatibility Directive 89 336 EEC and EU Low Voltage Directive 73 23 EEC Produk...

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