Assessments - 4, GPA: 4
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Facilidade de uso
OHMS=75.0 mW=450.0 5.4.5.4 DIGIPOT Adjustment 1. Press ESC twice to return to the Main menu. From the Main menu, select FACTORY > DIGIPOT to display the DIGIPOT screen. IMPORTANT! When performing the following Step, the instrument must be sampling fresh air (zero gas) when adjusting the DIGIPOT value. 2. Use the Up and Down buttons to adjust the DIGIPOT value until the IR VOLT reading is 4.2000 ±0.0500 volts. Press ENT to save the new DIGIPOT value. IMPORTANT! If adjusting the DIGIPOT does not reach 4.2000 ±0.0500 volts then return to stepn 18 to lower the IR Emitter setting. IF the IR Emitter setting is 450 ±20 mW adjust the IR Emitter setting to 375 ±20 mW. Next, repeat the DIGIPOT adjustment. DIGIPOT=220 IR VOLT=4.2000 3. Turn OFF instrument and remove AC power cord. 4. Reassemble instrument. 5.4.5.5 Factory Calibration NOTE: 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 to enable 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. Instruction 3015-4342 H25-IR Operation 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: 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 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. Instruction 3015-4342 Parts &Service H25-IR 5.5 Replacement Parts Item Description Part Number Complete Instrument ............................................................................... Refer to Section 1.3 Ordering Information H25-IR Unit: CFC, HCFC, HFC & Halogen gases..................................................3015-4348 R600a.................................................................................................3015-4464 SF6 .....................................................................................................3015-4477 Standard Probe Assembly: 6 ft (1.8 m) hose .................................................................................3015-4635 12 ft (3.7 m) hose ...............................................................................3015-4636 Standard Probe w/ pushbutton and LED Assembly: 6 ft (1.8 m) hose .................................................................................3015-4639 12 ft (3.7 m) hose ...............................................................................3015-4640 Smart Probe w/ pushbuttons and LCD Assembly: 6 ft (1.8 m) hose .....................................................................................19-7113 12 ft (3.7 m) hose ...................................................................................19-7114 Flexible Probe Tube Assembly (Stainless Steel) Full Assembly - 8 in (203 mm).................................................. ……….3015-5136 Filters – Located in Probe Tip (50) ........................................... ……….3015-5135 Probe Tip…............................................................................... ……….3015-5099 O-Ring, Probe Tube..……….....................................…………................ 0005-5108 Bezel, Case...............................................................................................3015-4670 AC Power Cord...........................................................................................304-3459 Battery .....................................................................................................0204-0020 Fuse, 1A......................................................................................................604-2610 Flexible Probe Tube Assembly (Plastic) Filters: Located in probe tip: Pack of 10....................................................................................3015-4515 Pack of 50....................................................................................301...