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17

HPT 100

1E-4

1E-3

1E-2

1E-1

1E0

1E1

1E2

1E3

1E-4 1E-3 1E-2 1E-1 1E0 1E1 1E2 1E3

H2

He

N2

Ar

Kr

displayed pressure (mbar)

real pressure (mbar)

8.3. Gas Correction Factor

Measuring diagram HPT 100 (Pirani)

Relative sensitivity in the

molecular range (1x10

-1

mbar)

Correction factor Pirani

N

2

1.00

Air 1.00

H

2

0.58

He 1.02

Ar 1.59

CO

2

0.89

Correction factor Bayard-

Alpert

He 5.93

H

2

2.39

Ar 0.80

CO

2

0.74

C

3

H

8

0.32

Ne 3.50

Kr 0.60

Xe 0.41

R12 0.28

8.2. Dimensions

ø 55.0 mm (2.2")

35.0 mm (1.4")

85.0 mm (3.4")

147.0 mm (5.8 ")

Dimensions HPT 100

1 2 ... 12 13 14 15 16 17 18 19 20

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