Edwards E2M175

© Edwards Limited 2014. All rights reserved. Page 5
Edwards and the Edwards logo are trademarks of Edwards Limited.
Technical data
A366-04-880 Issue A
2Technical data
2.1 Operating and storage conditions
2.2 Performance
Note: Where total pressures are shown in the technical data tables, measurements were taken using an untrapped
total pressure capacitance diaphragm gauge on a header, as specified by Pneurop standards.
Ambient temperature range (operation) 12 to 40°C
Normal surface temperature of the pump
body at ultimate vacuum
ambient temperature of 20°C 50 to 70°C
Maximum humidity (operation) 90% RH
Ambient temperature range (storage) -30 to 70°C
E2M175 E2M275
Maximum Displacement (m
3
h
-1
)
50 Hz electrical supply 178 292
60 Hz electrical supply 214 350
Maximum Speed – Pneurop (m
3
h
-1
)
50 Hz electrical supply 160 255
60 Hz electrical supply 196 306
Motor rotational speed r.min
-1
50 Hz electrical supply 1,440 1,440
60 Hz electrical supply 1,720 1,720
Ultimate vacuum
without gas-ballast (partial pressure) mbar
(Pa)
10
-4
(10
-2
)
10
-4
(10
-2
)
without gas-ballast (total pressure) mbar
(Pa)
1 x 10
-3
(1 x 10
-1
)
1 x 10
-3
(1 x 10
-1
)
with full gas-ballast (partial pressure) mbar
(Pa)
5 x 10
-3
(5 x 10
-1
)
5 x 10
-3
(5 x 10
-1
)
Maximum permitted outlet pressure (at full
pump throughput)
bar gauge
(Pa)
0.5
(1.5 x 10
5
)
0.5
(1.5 x 10
5
)
Maximum water vapour inlet pressure
without thermostatic mbar 4 2
water flow valve (Pa) (4 x 10
2
)(2 x 10
2
)
with thermostatic water mbar 20 12
flow valve (Pa) (2 x 10
3
) (12 x 10
2
)
Maximum water vapour pumping rate kgh
-1
2.4 2.5
Maximum gas-ballast flow m
3
h
-1
33