Edwards A73101983, Инструкция по эксплуатации, Страница: 14 / 40

Sound pressure, measured at ultimate vacuum
1 metre from the end of the pump to ISO 3744
and ISO 4871
55.4
±
2.5 dB (A)
Vibration: measured at the inlet port (ISO 3744) Class 1C...< 4.5 mm s-
1
(rms)
The position of the gas ballast control defines the performance characteristics of the
pump.
Table 3
Performance characteristics
Gas ballast control
position
Ultimate total pressure
(mbar)
Gas ballast flow (l min
-1
)
0 < 0.05 -
1 < 0.08 3
2 < 10.0 12
Figure 2 Performance characteristics
Note:
The pump is not suitable for prolonged operation at inlet pressures above 40 mbar.
Under such conditions, the inverter may reduce the motor speed.
3.3 Mechanical data
Table 4
General mechanical data
Overall dimensions (L x W x H) 476 x 333 x 396 mm
Maximum tilt angle 10 degrees
Nominal rotational speed 1750 rpm
Mass 48 kg
Page 12
A73101880_F - Technical data