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© 2006 

Nanometrics Inc.

250 Herzberg Road, Kanata, Ontario, Canada K2K 2A1. Tel +1 613-592-6776 Fax +1 613-592-5929 email [email protected]

4. For installations similar to examples (A) and (C), put the rectangular alignment plugs back 

into the gasket holes.

5. Connect the sensor cable to the Trillium 240. Angle the connector downwards about 30° to 

accomodate the cover.

6. Pull the cable end out through the cable outlet.
7. Place the sensor cable on the gasket so the cable will align to the V-groove in the bottom edge 

of the cover: Arrange the cable so it is approximately centred between the edge of the gasket 

and the centre plug line.

8. Look inside the cover to orient the connector groove to the sensor connector. Place the cover 

over the sensor.

Caution

It is very important that the cover and gasket not touch the sensor or cable connector. A 
continuous air gap is required for the Insulating Cover to work properly.

9. Position the cover so that it will not be in contact with the connector:

a) Holding the cover just far enough above the gasket so that it doesn’t drag, gently rotate the 

cover either clockwise or counterclockwise until it lightly touches the connector.

b) Rotate the cover in the opposite direction about 1cm and then place it down on the gasket. 

The Trillium 240 Seismometer Insulating Cover is now installed.

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