Hi Ive got a Varian 979 leak tester, however after a few runs the fine leak test does not work. If I use "Read standard Leak" then after it fails to switch on fine leak test. Can you please point me in the correct direction. Thanks John
Hi all,
I have been trying to change our 8890 GC carrier gas with a FID from helium to nitrogen. To verify the change went well I first prepared a test mixture of lab solvents (methanol, acetone, pentane, dcm, isopropanol), ran it using He, then ran…
Hello,
From the error code this look like error 5 with red light 2 and 4 on. Axis movement failed. Either something is blocking the X movement or there is a problem with the sensor. This will require repair. Please call the response center to get…
Hello pathagun ,
First thing you can double check is if any bubbles are present in the solvent lines between the solvent bottles and the degasser or the pump. You can also check if the solvent inlet filters in the bottles are blocked as these can…
Hi Sean...I think I've touched that particular instrument a long time ago. Gary - 50% 28 and 13% 32 after 24 hours is quite a big leak, maybe not massive but certainly needs fixing.
If the system worked fine before it was cooled off for a power fail…
What likely happened is the wavelength check that is done after lamp ignition failed. When the lamp is switched on, the detector waits 1 minute to warm-up the lamp. Then a check of the deuterium emission line via the reference diode is performed. If the…
Most likely the octopole PCA is failing. You could try dipping it, but if it happens again after redipping the board is failing and needs to be replaced.
It was on the equipment, you can check to be sure by running a performance check on the chiller. Our chiller passed all points on the performance check but failed on the ICP system.
thanks for your answer. Regarding the ion source (EI): it happens that in a relatively new column, the abundance of the peaks of the same control that I had been injecting almost 3 weeks ago, has decreased from 5 x10^5 to almost 1x10^4. I tried injecting…
I have tried two new lamp and its all fail intensity test on the controller. Then I borrow a standard flow cell from another LC and I got min. intensity pass but fail average intensity. So I use Methanol to clean the flow cell window and flush the flow…
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 ...