Pumping Media; Performance Characteristics - Edwards XDS35iC Instruction Manual

Sound pressure, measured at ultimate vacuum
1 metre from the end of the pump to ISO 3744
and ISO 4871
Vibration: measured at the inlet port (ISO 3744) Class 1C...< 4.5 mm s-
*Use at higher inlet pressure speeds up the tip seal wear.
†Enhanced version is not limited for maximum chamber volume or number of cycles per
hour.

3.2.1 Pumping media

WARNING:
Risk of fire. Do not use this pump to pump pyrophoric materials or dust.
The pump is designed to pump the following gases:
▪ Air
▪ Carbon dioxide
▪ Helium
▪ Carbon monoxide
▪ Nitrogen
▪ Argon
▪ Oxygen (O
The pump can be used to pump water vapour. Caution must be taken to ensure that
vapour does not condense inside the pump. Refer to
how to prevent condensation of water vapour in the pump.
If pumping a vapour or gas not in the list above, contact us for advice.

3.2.2 Performance characteristics

The position of the gas ballast control defines the performance characteristics of the
pump.
Note:
Does not apply to No Gas Ballast variants
Table 3 Performance characteristics
Gas ballast control
position
0
1
2
A73001880_N
A73001880_N - Technical data
)
2
XDS35i Ultimate to-
tal pressure (mbar)
< 0.01
< 0.02
< 10.0
Page 13
57 dB (A)
Gas ballast control
XDS35iE Ultimate
total pressure
(mbar)
< 0.03
< 0.04
< 10.0
11/2020 - ©Edwards Limited
1
(rms radial)
on page 23 on
Gas ballast flow
-1
(l min )
-
3
12