Edwards ELD500 Series

D135-10-880C - Description
Page 15
Ambient conditions
Technical data ELD500 FLEX
Physical data
Maximum audio alarm (dB (A)) 90
Contamination level (to IEC 60664-1) 2
Over-voltage category (to IEC 60664-1) II
Table 8 ELD500 DRY ambient conditions
For use within buildings
Permissible ambient temperature (during
operation)
+10 °C to +40 °C
Permissible storage temperature -10 °C to +60 °C
Maximum relative humidity 80% (up to 31 °C) linear decreasing to
50% at 40 °C
Maximum permissible height above sea level
(during operation)
2000 m
Table 9 ELD500 FLEX physical data
Maximum inlet pressure 15 mbar
Minimum detectable Helium leak rates
in vacuum mode
- with Scroll pump < 8 x 10
-12
mbar l/s
- with oil sealed pump < 5 x 10
-12
mbar l/s
in sniffer mode < 1 x 10
-7
mbar l/s
Minimum detectable Hydrogen leak rates
- in vacuum mode < 1 x 10
-8
mbar l/s
- in sniffer mode < 1 x 10
-7
mbar l/s
Maximum Helium leak rate which can be
displayed
0.1 mbar l/s
Measurement range 12 decades
Time constant of the leak rate signal
(blanked off, 63% of the final value)
< 1 s
Pumping speed (Helium) at the inlet
GROSS mode 1.0 l/s
FINE mode > 2.5 l/s
Detectable masses 2, 3 and 4
Mass spectrometer 180° magnetic sector field
Table 7 ELD500 DRY other data (continued)