16
tina83e1-d (2018-12)
2.1
Measuring Signal vs. Pressure
Measurement range 1.5 … 8.5 V
(3M
A
x-xxx-xxx
N
)
1E–01
1E+00
1E–06
1E–07
1E–08
1E–09
1E–10
0.0 0.5 1.0 1.5
2.5
3.5
4.5
5.5
6.5
7.5
8.5
9.5
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
s
en
s
or
er
ro
r
Pressure p
Measurement signal U [V]
1E–02
1E–03
1E–04
1E–05
u
nd
er
ran
ge
Pa
mbar
torr
ov
er
ran
ge
p = 10
(U-c)
⇔
U = c + log
10
p
valid in the range
1×10
-9
mbar < p < 1×10
-2
mbar
7.5×10
-10
Torr < p < 7.5 ×10
-3
Torr
1×10
-7
Pa < p < 1 Pa
mbar
Pa
Torr
c
10.5
8.5
10.625
where p pressure
U measurement signal
c constant (pressure unit dependent)
Summary of Contents for Gemini MAG500
Page 63: ...tina83e1 d 2018 12 63 Notes ...
