Pfeiffer Vacuum ASM 340 - Page 92

Access: Settings Screen + Menu [Measurement] Choice - Setting limit
Calibrated leak
settings
Tracer Gas
Helium 4
1)
Mass 3
Hydrogen
Type
Internal
1)
External
Unit mbar · l/s
Pa · m
3
/s
Torr · l/s
mTorr · l/s
atm · cc/s
sccm
sccs
ppm
3)
-
3)
Leak value
1 · 10
-18
– 1 · 10
+18
-
4)
Loss per year (%) 0 – 99
6
1) 4)
Reference temperature (°C) 0 – 99
23
1) 4)
Temperature coefficient (%/°C) 0.0 – 9.9
3
1) 4)
Date Format: mm/yyyy
-
4)
Temperature Type
Internal
1)
External
Internal Tempera-
ture (°C)
(if internal ‘Type’)
-
-
2)
External Temper-
ature (°C)
(if external ‘Type’)
0 – 99
23
1)
1) Default setting
2) General information: read only
3) No default setting: setting performed by the user at the 1
st
detector start-up
4) Information indicated on the calibrated leak used for calibration or on its calibration certificate.
Tbl. 3: Default settings: ‘Measurement’ menu
Access: Settings Screen + Menu [Test] Choice - Setting limit
Method
Hard Vacuum
1)
Sniffer
Mode
(if hard vacuum ‘Method’)
Gross Leak
Normal
1)
Probe type
(if sniffer ‘Method’)
Standard
1)
Smart
1) Default setting
2) General information: read only
Appendix
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