Bacharach H25-IR Operation & Maintenance Manual

Also see for H25-IR: Product catalog Specifications Instruction

Contents

Bacharach H25-IR Operation & Maintenance Manual Manual pdf 58 page image

Parts &Service H25-IR52 Instruction 3015-52865.4.5.5 Factory CalibrationNOTE: Factory calibration establishes the instrument’s default calibration setting that is recalled when“RESTORE FACTORY CAL” is selected from the CAL DATA menu.1. With all covers in place, turn the instrument back ON while holding down the front panel ENT button toenable the Factory menu.IMPORTANT: Before calibrating, allow the instrument to warm up for at least 15 minutes.2. Perform an internal calibration as described in the H25-IR instruction manual, 3015-4342.3. After the instrument has been calibrated, store the flow and pressure calculations of that calibration asthe default factory calibration values as follows.a) Press the ENT and ESC buttons simultaneously to access the Main menu. From the Mainmenu, select FACTORY > SENSOR CAL > FLOW RATE to display the Flow Rate andPressure screen.INT: This line shows the flow rate in moles/minute for both the Search and Measure modesafter performing a calibration using the internal leak source, along with showing the manifold’spressure drop.FAC: This line shows the flow rate and pressure drop values that are currently stored as thedefault factory calibration values. These values are used to validate calibrations performed bythe user. A calibration error will occur if the user’s calibration and factory values differ by morethan 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/dPINT 0.0177/-1.33 0.0100/-2.28FAC 0.0177/-1.33 0.0100/-2.28ENTER TO SAVE INT AS FACTORY