INFICON Gemini ATM to Ultra-High Vacuum Gauge - Manual (Page 21)

tina83e1-a (2014-02) 21
Indication range 10
-6
… 0.1 mbar
Indicated pressure (gauge calibrated for air)
6
4
2
6
4
2
6
4
2
10 –4
8
6
4
2
10 –6 2 4 6 10 –5 10 –4
10 –5
8
6
4
2
10 –6
8 2 4 6 8 2 4 6 2 4 6 2 4 6 10 –3 8 10 –2 8 10 –1 8
10 –3
8
10 –2
8
10 –1
8
p
eff
(mbar)
p (mbar)
Indication range
10
-6 ... 10 -1 mbar
Air
N
2
O
2
CO
Ar
He
Indication range below 10
-5
mbar
In the range below 10
-5
the pressure indication is linear. For
gases other than air, the pressure can be determined by means
of a simple conversion formula:
p
eff
= K × indicated pressure