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COBRA ATEX NC 2500 B
BUSCH COBRA ATEX NC 2500 B - User Manual
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Instruction Manual
COBRA ATEX
Dry Screw Vacuum Pumps
NC 2500 B (water-cooled version)
0870569470/-0003_en / Original instructions / Modifications reserved
07/07/2020
Ateliers Busch S.A.
Zone industrielle, 2906 Chevenez
Switzerland
2
Table of Contents
Main Page
Default Chapter
2
Table of Contents
2
1 Safety
4
2 Product Description
5
Operating Principle
6
Application
6
Start Controls
6
Standard Features
7
Water Cooling
7
Cooling Gas Recirculation
7
Resistance Thermometer (Cooling Liquid)
7
Resistance Thermometer (Exhaust Gas)
7
Pressure Transmitter
7
Vibration Diagnostic Unit
7
Sealing Systems
7
Optional Accessories
8
Silencer
8
Mechanical Seals
8
Terminal Box
8
Explanation of ATEX Classification
8
ATEX Nameplate
8
Safety Concept
8
List of Mandatory ATEX Accessories
9
P&ID "Piping and Instrumentation Diagram
9
3 Transport
10
4 Storage
11
5 Installation
12
Installation Conditions
12
Connecting Lines / Pipes
13
Suction Connection
13
Discharge Connection
14
Cooling Water Connection
14
Cooling Gas Recirculation
15
Barrier Gas System Connection
16
Filling Oil
17
Filling Cooling Liquid
19
Fitting the Coupling
20
Electrical Connection
20
Wiring Diagram Three-Phase Motor (Pump Drive)
21
Electrical Connection of the Cooling Liquid Pump
22
Wiring Diagram Cooling Liquid Pump
22
Electrical Connection of the Monitoring Devices
23
Wiring Diagram Resistance Thermometer
23
Wiring Diagram Pressure Transmitter
24
Wiring Diagram Vibration Diagnostic Unit
24
Flowchart
26
6 Commissioning
27
Recommendations on Operation
28
Operating Frequency
28
Stop & Start
28
Conveying Condensable Vapours
28
Trip Procedure
29
Restart Procedure
29
7 Maintenance
30
Maintenance Schedule
31
Oil Level Inspection
31
Cooling Liquid Level Inspection
32
Oil Change
32
Cooling Liquid Change
35
Calibration Procedure of the Electrical Devices
39
Procedure a
39
Procedure C
39
Procedure D
39
8 Overhaul
40
9 Decommissioning
40
Dismantling and Disposal
40
10 Spare Parts
41
11 Troubleshooting
42
12 Technical Data
44
13 Cooling Liquid
44
14 Oil
44
15 EU Declaration of Conformity
45
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BUSCH COBRA ATEX NC 2500 B Specifications
General
Brand
BUSCH
Model
COBRA ATEX NC 2500 B
Category
Water Pump
Language
English
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