Edwards nEXT85 User Manual

WARNING:
Do not expose any part of the human body to the vacuum as this could result in injury to
or death of people.
WARNING:
Do not exceed the maximum connuous operang pressure.
WARNING:
Do not use the pump to pump mercury vapour and do not allow mercury (for example,
from a McLeod gauge) to come into contact with the pump. This may result in corrosion
and failure of the pump rotor.
CAUTION:
Do not use the pump to pump parculates or condensable media. Deposion may occur
within the pump which will degrade pump performance and reduce the pump life.
CAUTION:
Do not use the pump to pump gases containing more than 20% oxygen. This will cause the
lubricant to polymerise and the pump to fail prematurely.
Note:
Concentraons of gases may be modied by the compression of the pump.
The pump is designed to pump the following residual gases normally used in high-vacuum
systems:
• Air
• Carbon monoxide
• Neon
• Ethane
• Methane
• Nitrogen
• Krypton
• Argon
• Propane
• Carbon monoxide
• Helium
• Hydrogen
• Butane
The pump can be used to pump oxygen and water vapour, subject to the following condions:
• Oxygen - The oxygen concentraon must be less than 20% by volume.
• Water vapour -Ensure that vapour does not condense inside the pump.
B8G0-00-880A - Technical Reference
Page 88

Edwards nEXT85 Specifications

General

Brand	Edwards
Model	nEXT85
Category	Water Pump
Language	English