Bacharach HI FLOW Sampler Spécifications télécharger pdf (Page 37)

Hi Flow Sampler Operation

Instruction 0055-9017

1 1 / 2 2 / 0 4 0 9 : 4 7 : 3 0

F l o w ( l p m ) 2 1 6 . 5

B a c k ( % ) 0 . 8 0

L e a k ( % ) 1 5 . 0 0

L e a k ( l p m ) 4 2 . 5

S p e e d ( L O < > H I )

[ 0 0 0 1 ] ( M ) - 1 -

S a m p l e T i m e - > 0 2 : 0 0

6. In the example below, the current flow rate is 216.5 lpm, the

background gas concentration is 0.8%, the leak concentration is 15%

gas, and the calculated leak rate is 42.5 lpm.

1 1 / 2 2 / 0 4 0 9 : 4 7 : 3 0

F l o w ( l p m ) 2 1 6 . 5

B a c k ( % ) 0 . 8 0

L e a k ( % ) 1 5 . 0 0

L e a k ( l p m ) 4 2 . 5

S p e e d ( L O < > H I )

[ 0 0 0 1 ] ( M ) - 1 -

S a m p l e T i m e - > 0 2 : 0 0

7. The measurement process continues until Stop is selected.

1 1 / 2 2 / 0 4 0 9 : 5 0 : 0 0

B a c k ( % ) 0 . 8 0

L e a k ( % ) 1 5 . 0 0

L e a k ( l p m ) 4 2 . 5

S p e e d ( L O < > H I )

S t o p

S a v e

S a m p l e T i m e - > 0 4 : 3 0

[ 0 0 0 1 ] ( M ) - 1 -

3.18.2 Leak Rate Measurement – Automatic 2-Stage Mode

Note: The Automatic 2-Stage Mode can only be selected if operating in the

Expanded Menu Mode. Refer to Section 3.8.

1. If not already done, place the instrument into its Automatic 2-Stage

measurement mode (denoted by the letter (A) appearing at the bottom

of the screen). Refer to Section 3.14.1 Automatic 2-Stage Measurement

Mode.

2. Choose an attachment that will ensure the complete capture of the

gas leak. Connect this attachment to the end of the Hi Flow

Sampler’s main sampling hose and position the attachment’s inlet

over the leak source.

3. Position the inlet of the instrument’s background gas sampling hose

opposite the leak source, such that the leak source will not

contribute to the background measurement.

4. Begin the measurement process by selecting Start from the Main

Screen.

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Bacharach HI FLOW Sampler Spécifications Page 37

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