
User's Manual Rev B / February 2021 / M125 Helium Compressor
97-00020-000
iv
5.2.8 Electrical Connection ..........................................................................................................13
6Operations ........................................................................................................................................15
6.1 Before Switching ON the System ...............................................................................................15
6.2 Normal Operation ......................................................................................................................15
7Troubleshooting................................................................................................................................15
7.1 Troubleshooting Activities .........................................................................................................15
8Maintenance .....................................................................................................................................16
8.1 Maintenance Personnel Requirements .....................................................................................16
8.2 Removing the Compressor from Service: Removal, Transport and Storage .............................16
8.3 Scheduled Preventative Maintenance Activity..........................................................................17
8.3.1 Remove the Compressor Adsorber.....................................................................................17
8.3.2 Install Replacement Adsorber.............................................................................................17
8.4 Unscheduled Maintenance ........................................................................................................19
8.4.1 Adding Helium Gas..............................................................................................................19
8.4.2 Removing Helium Gas.........................................................................................................19
8.5 Cleaning Equipment ...................................................................................................................19
8.6 Returning Equipment .................................................................................................................19
List of Figures
Figure 1 – Flow Diagram for Water-Cooled Model 125 compressor ........................................................................ 6
Figure 2 – Flow Diagram for Air-Cooled Model 125 compressor.............................................................................. 7
Figure 3 – Model 125 Dimensions............................................................................................................................. 9
Figure 4 – Model 125 Electrical Schematic.............................................................................................................. 13
Figure 5 – Model 125 Electrical Chassis Components (Inside View) ....................................................................... 14
Figure 6 – Location of Adsorber in Model 125 Compressors ..................................................................................18
Figure 7 – Self Sealing Coupling In Closed Position................................................................................................. 18
List of Tables
Table 2-1: Compatible Configurations....................................................................................................................... 2
Table 4-1: Model M125 Helium Compressor Subsystems ........................................................................................ 5
Table 4-2: Power Requirements for Model 125 Compressor.................................................................................... 8
Table 4-3: Model 125 Compressor Specifications ..................................................................................................... 8
Table 4-4: Model 125 Compressor Unit Ordering Information................................................................................. 9
Table 4-5: Optional Accessories and Replacement Parts .......................................................................................... 9
Table 5-1: Figure 5 Legend ......................................................................................................................................14
Table 7-1: Trouble Shooting Procedures .................................................................................................................15