Performance Characteristics; Figure 2 Performance Characteristics Of Xds35I - Edwards XDS35i 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 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

Figure 2 Performance characteristics of XDS35i

Note:
XDS35i can operate with high peak power for 90 seconds before activation of a thermal
protection algorithm which reduces rotational and pumping speed.
A73001880_M - Technical data
XDS35i Ultimate
total pressure
(mbar)
< 0.01
< 0.02
< 10.0
Page 13
57 dB (A)
XDS35iE Ultimate
total pressure
(mbar)
< 0.03
< 0.04
< 10.0
1
(rms radial)
Gas ballast flow
-1
(l min )
-
3
12