Bacharach H25-IR Specifications download pdf (Page 57)

H25-IR Operation

Instruction 3015-4342 51

3. After the instrument has been calibrated, store the flow and pressure calculations of that calibration as

the default factory calibration values as follows:

a) Press the ENT and ESC buttons simultaneously to access the Main menu. From the Main

menu, select FACTORY > SENSOR CAL > FLOW RATE to display the Flow Rate and

Pressure screen:

INT: This line shows the flow rate in moles/minute for both the Search and Measure modes

after performing a calibration using the internal leak source, along with showing the manifold’s

pressure drop.

FAC: This line shows the flow rate and pressure drop values that are currently stored as the

default factory calibration values. These values are used to validate calibrations performed by

the user. A calibration error will occur if the user’s calibration and factory values differ by more

than 20%.

b) Press ENT to store the internal calibration numbers as the default factory calibration values.

c) Press ESC until the Data Display screen appears.

This completes replacing the IR Optical Bench.

S-Mpm/dP M-Mpm/dP

INT 0.0177/-1.33 0.0100/-2.28

FAC 0.0177/-1.33 0.0100/-2.28

ENTER TO SAVE INT AS FACTORY

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Bacharach H25-IR Specifications Page 57