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Installation and Interfaces | 5
074-733-P1A IMM-200 Operating Manual
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5 Installation and Interfaces
Before permanently installing IMM-200, read this entire chapter. Follow the
recommendations as closely as possible. INFICON has taken numerous steps to
ensure its equipment will operate in a variety of harsh situations. Failure to adhere to
these simple practices may adversely affect the performance and longevity of
IMM-200.
NOTICE
Use caution when mounting IMM-200 to a fixed position. Ensure there is
enough room to disconnect the power cord when needed.
5.1 Avoiding Electrical Interference
Careful consideration of simple electrical guidelines during installation avoids many
problems caused by electrical noise. To maintain the required shielding and internal
grounding and ensure safe and proper operation, IMM-200 must be operated with all
enclosure covers, sub-panels, and braces in place and fully secured with the screws
and fasteners provided.
Verifying / Establishing
Earth Ground
If ground must be established, the following procedure is recommended:
► Where soil conditions allow, drive two ten-foot copper clad steel rods into the
ground six feet apart. Pour a copper sulfate or a salt solution around each rod to
improve the ground’s conduction. A near-zero resistance measurement indicates
earth ground is achieved.
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Keep the connections to this grounding network as short as possible.
Connections to Earth
Ground
There are two required earth ground connections:
1. The earth ground connection on IMM-200 is a threaded stud with a hex nut.
Connect a ring terminal to the ground strap, allowing a good connection and easy
removal and installation. This connection must be made at installation. For best
protection against high frequency noise, the length-to-width ratio of the earth
conductor should not exceed a ratio of 5:1. The ground strap should connect from
IMM-200 to the vacuum system as shown.
Содержание IMM-200
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