Pfeiffer Vacuum TPR 271, Руководство по эксплуатации, Страница: 20 / 40

Measuring signal (U) Pressure (p)
Constant (c)
1)
[V] [hPa] 5.5
[mbar]
[Torr]
5.625
[micron] 2.625
[Pa] 3.5
Tbl. 6: Constants for converting measuring signal and pressure
Measuring signal (U) Pressure (p)
[V] [hPa]
< 0.5 Sensor error
0.5 – 1.5 Underrange
1.5
1.0 × 10 -4
2.5 1.0 × 10 -3
3.5
1.0 × 10 -2
4.5 0.1
5.5 1.0
6.5 10
7.5 1.0 × 10 2
8.5
1.0 × 10 3
8.5 – 10.3 Overrange
Tbl. 7: Conversion table TPR 270
Measuring signal (U) Pressure (p)
[V] [hPa]
< 0.5 Sensor error
0.5 – 2.2 Underrange
2.2
5.0 × 10 -4
2.5
1.0 × 10
-3
3.5
1.0 × 10 -2
4.5 0.1
5.5 1.0
6.5 10
7.5
1.0 × 10
2
8.5
1.0 × 10 3
8.5 – 10.3 Overrange
Tbl. 8: Conversion table TPR 271
Converting measuring signal and pressure
Validity range
● 1 × 10
-4 hPa < p < 1000 hPa
● 7.5 × 10
-5 Torr < p < 750 Torr
● 1 × 10
-2 Pa < p < 1 × 10 5 Pa
1) Dependent upon unit of pressure
Operation
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