6 Operation
After switching on the supply voltage, the gauge is ready for operation.
Recommendations
► Respect the minimum stabilization period of 10 minutes.
► Respect the relation between measuring signal and pressure.
► Leave the gauge switched on at all times, regardless of the prevalent pressure.
6.1 Converting measuring signal and pressure
1E
+05
1E
+04
1E
+03
1E
+02
1E
+01
1E
+00
1E
–01
1E
–02
1E
–03
1E
–04
1E
–05
o
v
e
rr
a
n
g
e
Pa
hPa
Torr
0.0 0.5 1.0 1.5
2.5
3.5
4.5
5.5
6.5
7.5
8.5
9.5
10.3
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
s
e
n
s
o
r
e
rr
o
r
u
n
d
e
rr
a
n
g
e
p
U[V]
Fig. 4:
Relationship between measuring signal and pressure for TPR 270 gauges
p Pressure
U
Measuring signal [V] (output voltage)
1E
+05
1E
+04
1E
+03
1E
+02
1E
+01
1E
+00
1E
–01
1E
–02
1E
–03
1E
–04
1E
–05
o
v
e
rr
a
n
g
e
Pa
hPa
Torr
0.0 0.5 1.0 1.5
2.5
3.5
4.5
5.5
6.5
7.5
8.5
9.5
10.3
2.0
2.2
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
s
e
n
s
o
r
e
rr
o
r
u
n
d
e
rr
a
n
g
e
p
U [V]
Fig. 5:
Relationship between measuring signal and pressure for TPR 271 gauges
p Pressure
U
Measuring signal [V] (output voltage)
Operation
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