2.5
Analog Outputs
2
SETUP
2.5.3
7B Penning Magnetron Cold Cathode
The 7B Penning Magnetron Cold Cathode sensor has two analog output settings. The Linear Output
option provides a linear signal from 1
×
10
−
7
Torr to 1
×
10
−
3
Torr. The voltage can be converted to a
pressure via an equation.
Pr essr e
(
Tor r
) =
V
(
Vots
)
×
10
−
4
(4)
The Linear by Decade Output option provides a signal that is linear within each decade (power of
ten) and uses the first digit to convey the decade of pressure. The signal can be converted to a
pressure by using a function to parse the voltage measurement.
For V
=
2
×
(
NT.DDD
)
Pr essr e
(
Tor r
) =
0
.DDD
×
10
(
NT
−
7
)
(5)
Figure 5: 7B Analog Output
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tel: +1 215 947 2500
web: frederickscompany.com
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