Your controller is going in Auto Tune
Autotuning condition is shown when the controller has delivered an output power level higher than a typical value, but the pump is still not reaching full speed value.
It does not matter if it is a normal start…
Hello! I followed this tutorial part D Linked Dual GC Signals 1 aliquot /cfs-file/__key/communityserver-discussions-components-files/152/0020.DualTow7890EnvMH.pdf to sample 1 aliquot through both the front and back autosamplers, both columns, to both…
User could not tune and was getting missing .xml errors. This error was observed in MassHunter Acquisition software B.07.00 on a GC QQQ but may be relevant in other revisions as well. Error in auto tuning! Missing XML file or invalid contents. Failed…
I got a data sheet for my Agilent 7890 FID detector. The stated linear range is 10x7. This range I think should mean that from 1% down to 0.1 ppM the detector is linear for Tridecane. I figure concentration-wise in splitless mode - that works out to be…
Hello, We are using Agilent 7890B GC/FID with Headspace sampler. There is a problem in FID unit of the system. In FID parameters, Temp is 220 C, H2 fuel flow is 30 mL/min, Makeup flow (N2) is 25 mL/min, He flow 1 mL/min. These are setpoints and actuals…
It is a capillary, USP 401 The gas chromatograph is equipped with a flame-ionization detector, maintained at a temperature of about 260°, a splitless injection system, and a 0.53-mm × 30-m fused-silica capillary column bonded with a 1.0-µm layer of phase…
Hello howard_sanford ,
I tried clearing the preferences for IDBrowser, and it did work when I used the old PCDL, but the "m/z" column in ID Browser did not show anything. So, I did it again and for the second time, the m/z of features showed up, but…
The universal VUV detector has sensitivity better than an FID and similar to an MSD while allowing data acquisition across 12 different wavelength bands to focus on selected compounds of interest. It can be mounted directly on top of an Agilent 7890 or…
Hi there. I need your help. My gas sample is including hydrocarbons, CO and CO2, I was told I should used TCD detector, I used but there is no peak. I believe I need to use both FID and TCD detectors at same time and for that I need connector series between…
Paul thanks for your reply. I have looked for information about these traps because I have two RMSH-2 traps and I thought about using one for the carrier gas (He) and the other for the FID hydrogen. Anyway, I'm going to buy the hydrogen trap. Thanks …
This Information Applies To: Agilent Atomic Absorption Spectroscopy Systems (240/280 Series Flame AA and 240/280Z/Zeeman/GTA 120 Graphite Furnace)
Issue:
This article includes recommended maintenance procedures to be performed daily, weekly or annually...
This Information Applies To: Agilent SpectrAA Software, Agilent 240/280 Flame Atomic Absorption Systems, 240/280 Zeeman Graphite Furnace Systems
Issue:
How to Reset Lamp Usage Counters or Add a New Lamp in SpectrAA
Caution : All physical...
This Information Applies To: Agilent GTA 120, Agilent 240Z AA Spectrometer, Agilent 280Z AA Spectrometer, Agilent 240FS/GTA120/PSD120/UltrAA System
Issue:
It is important to align the sample probe of the Programmable Sampler Dispenser (PSD) 120...
This Information Applies To: Agilent Flame AA Systems: e.g., 55B, 240FS, 280FS
Issue:
The Flame AA burner and burner components require regular cleaning to maintain system performance. Components include the burner, nebulizer, and spray chamber...
This Information Applies To: Agilent Flame Atomic Absorption (AA) Spectrometers (50/55/240/280 AA)
Issue:
How to clean a blocked nebulizer of a Flame AA, which may be causing low sensitivity or a sample uptake rate below 5 ml/min.
Steps to follow...
This Information Applies To: Agilent Graphite Furnace Systems (PSD 120/GTA 120/240Z AA/280Z AA)
Issue
Maintenance procedure for replacing the syringe and plunger of the PSD 120 sample dispenser for the Agilent GTA and Zeeman Graphite Furnace Systems...
This Information Applies To: Agilent AA (AA240, AA280) with Graphite Furnace Accessory (GTA)
Issue:
The Programmable Sample Dispenser (PSD) requires the sampling probe to be accurately aligned before the PSD can be used.
The PSD enables the...
This Information Applies To: All Agilent AA systems: 55B, 240FS, 280FS, 240Z, 280Z
Issue:
Optimizing the position of the lamp maximizes amount of light from the lamp passing through the optics to the detector, improving the signal-to-noise and the...
This Information Applies To: Agilent VGA 77, AA, VGA 77P, ICP
Issue:
The Agilent Vapor Generation Accessories VGA 77 and VGA 77P use high concentrations acids. The system needs to be thoroughly cleaned after each use.
The Vapor Generation Accessory...
This Information Applies To: All Agilent Atomic Absorption Spectrometry Systems (AA50, AA55, AA240, AA280)
Issue: This article describes when and how to clean an AA burner.
Background
For optimum and safe performance, burners (see Figure 1 ...