Trillium US Inc. Model 125 Cryogenic Helium Compressor User`s

User's Manual Rev A / November 2015 / M600/M400 Helium Compressor

Table 7-3 – Fuse Listing for Digital Electronics Box in Figure 3 and Figure 4

Fuse Designator Function Amperage

OI Part Number

PCBA: F13 Main Power 15 31-00012-014

PCBA: F14 Main Power 15 31-00012-014

PCBA: F15

PCBA: F16

PCBA: F18

High Volt Fuse Block: F1

High Volt Fuse Block: F2

Main Power

24VAC

24VAC

Heater Power

Heater Power

15

3

3

5

5

31-00012-014

31-00012-015

31-00012-015

31-00152-011

31-00152-011

8.

Maintenance

8.1.

Maintenance Personnel Requirements

Only trained and qualified personnel should perform the maintenance procedures described in this chapter. All other maintenance work must be performed by Trillium US Inc. Inc. personnel in the factory. Please contact Trillium US Inc. Inc. to make arrangements for maintenance work (see Section 2.2).

8.2.

Removing the Compressor from Service: Removal, Transport and Storage

It is recommended that the Model 600 / Model 400 Helium Compressor be removed from service when carrying out the maintenance duties described in Section 8.3.

To remove the compressor unit from service, do the following:

1.

Turn off the compressor unit by pressing the OFF button.

2.

Switch off the main power supply to the compressor.

3.

Separate the compressor unit from the main power source.

4.

Allow coolant to continue circulate for at least 10 more minutes (for water-cooled model)

5.

Allow the compressor load (cryopump, coldhead, etc) to warm up to room temperature before detaching the helium flex lines from the compressor.

Caution: Loosening or detaching helium flex lines with the compressor load at low temperature without proper warming-up can result in loss of helium and/or pressure rise in the cryopump or coldhead unit beyond its designed maximum pressure level.

When transporting the compressor unit, follow these guidelines:

1.

Make sure the appropriate protective caps are properly secured before shipping.

2.

Always store the compressor unit in a dry place.

3.

If a freezing temperature environment is anticipated whether during shipping or under storage, make certain the coolant in the compressor circuit is properly drained.

Caution: The compressor unit should never be tilted more than 10 degrees either during shipping or in storage.

8.3.

Scheduled Preventative Maintenance Activity

The only scheduled field service maintenance required on the Model 600 / Model 400 Helium Compressor is replacement of the compressor adsorber after every 15,000 hours of operation (as shown on the Elapsed Time Meter) or 2 years, whichever comes first. While in many cases an adsorber can last longer, Trillium US Inc. experience dictates that from a

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