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Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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HPLC CHROMATOGRAPHY HINTS and TIPS FOR …
HPLC CHROMATOGRAPHY HINTS and TIPS FOR …

The degasser is an important component of your entire HPLC system so it must be maintained and serviced just like the other modules. RED or Yellow Error lights (on Agilent/HP models) or " Degasser hardware fault " error (Waters) on these modules usually indicates a need for professional service.

Waters Degasser Error Fault h/w error fault 3 high vacuum ...
Waters Degasser Error Fault h/w error fault 3 high vacuum ...

"Degasser hardware fault" error on your Waters brand HPLC system? High RPM warning or vacuum pressure over 0.9 psi? Do you hear a loud knocking sound or whine coming from the degasser pump? These errors often indicate that your degasser vacuum pump is worn out ,you have vacuum leaks in the tubing and/or damaged degassing chambers.

UPLC PRESSURE PROBLEM - Chromatography Forum
UPLC PRESSURE PROBLEM - Chromatography Forum

13/9/2012, · You may want to make sure the system is clean by flushing with isopropanol, and maybe some dilute nitric (check with ,Waters, to see if this is recommended). Or, maybe some mix of polar/non-polar solvents - Agilent sells an ,HPLC, Flushing solvent that is (IIRC) 50% IPA, 25% MeCl2, 15% MeCN, and 10% cyclohexane.

Waters 2695 Troubleshooting CSU | Syringe | Chromatography ...
Waters 2695 Troubleshooting CSU | Syringe | Chromatography ...

From the Status Page turn the ,degasser, on. * Perform a dry prime until solvent flows from each of the four lines. Starting with the organic solvent, perform a 3 minute Wet Prime on each line separately at a flow rate of 7.5 mL/min ** Once all lines are primed, set the flow rate to 0mL/min with the ,degasser, …

HPLC CHROMATOGRAPHY HINTS and TIPS FOR …
HPLC CHROMATOGRAPHY HINTS and TIPS FOR …

Leak Error, High RPM, makes loud noise, a Yellow or Red light on an HP/Agilent system or "Degasser Hardware Fault" / "Degasser High Leak Rate" messages often seen on Waters brand systems), then your entire HPLC system may be out-of-compliance - because the degasser is broken.

Waters 2695 Troubleshooting CSU | Syringe | Chromatography ...
Waters 2695 Troubleshooting CSU | Syringe | Chromatography ...

From the Status Page turn the ,degasser, on. * Perform a dry prime until solvent flows from each of the four lines. Starting with the organic solvent, perform a 3 minute Wet Prime on each line separately at a flow rate of 7.5 mL/min ** Once all lines are primed, set the flow rate to 0mL/min with the ,degasser, on for 2 minutes.

How do I check if my online degasser is working optimally?
How do I check if my online degasser is working optimally?

Your ,degasser, may not be operating properly (For ,Waters, brand systems, you will often see the error message ",Degasser, hardware ,fault,"). This would indicate that your ,degasser, needs formal service.

UPLC PRESSURE PROBLEM - Chromatography Forum
UPLC PRESSURE PROBLEM - Chromatography Forum

13/9/2012, · You may want to make sure the system is clean by flushing with isopropanol, and maybe some dilute nitric (check with ,Waters, to see if this is recommended). Or, maybe some mix of polar/non-polar solvents - Agilent sells an ,HPLC, Flushing solvent that is (IIRC) 50% IPA, 25% MeCl2, 15% MeCN, and 10% cyclohexane.

Negative periodic ghost peaks in HPLC chromatogram : labrats
Negative periodic ghost peaks in HPLC chromatogram : labrats

Our issue began when our ,degasser, failed and the ,HPLC, presented the errors of ",degasser, h/w ,fault,", and afterwards ",degasser pressure fault,". However, we decided to bypass the ,degasser, as, to our understanding, it is not necessary to operate with it. Something worth noting is that the peaks still appear when we operate with a flow of 0 configured.

Hplc Degasser | Cambridge Scientific
Hplc Degasser | Cambridge Scientific

The ,Waters, ACQUITY UPLC H-Class System delivers the flexibility of quaternary solvent blending with the advanced performance of UPLC® separations. The system's holistic design is targeted for routine analysis and method development use and is perfectly suited for running both ,HPLC, and UPLC applications while still realizing the improved resolution and sensitivity of UPLC separations.

Vacuum Degasser Pumps & Chambers for Waters Brand HPLC …
Vacuum Degasser Pumps & Chambers for Waters Brand HPLC …

Waters Degaser Hardware Fault Error Vacuum Pump 700001352. We provide replacement HPLC UPLC vacuum degasser pumps for the Waters Alliance and Acquity HPLC systems, Degasser Hardware Fault error. Vacuum Degasser Pumps & Chambers for Waters Brand HPLC and UPLC systems:

30 psi fluctuation on pressure — Waters Forums
30 psi fluctuation on pressure — Waters Forums

UPLC is not HPLC. The Acquity BSM is capable of <10 psi ripple throughout its pressure envelope with flow rates <1mL/min. From your trace, I suspect a sticking primary check valve or leaking seal. Here are things to check: Degasser PSI - typically 0.4-0.6 psi. If you are running higher, then the gas load on your MP might be too high.

Waters Corporation. Waters 2690/5 USER & …
Waters Corporation. Waters 2690/5 USER & …

Once all lines are primed, set flow rate to 0mL/min with ,degasser, on for 2 minutes. 4. Start the flow with the initial conditions of your chromatographic method. Equilibrate with 10 column volumes of solvent. 5. Check the ,Pressure, Ripple on page two of the Status Page. The ripple should be less than 2% of the system ,pressure,.

2695 troubleshooting guide - ResearchGate
2695 troubleshooting guide - ResearchGate

Degasser pressure fault, Replace faulty ,degasser, chamber or vacuum pump. Call ,Waters, Service Representative. Lost prime Solvent not degassed properly. Change check valves. If the

Dionex 3000 Pump - air bubble problem - Chromatography …
Dionex 3000 Pump - air bubble problem - Chromatography …

2/8/2012, · it looks like you have a high ,pressure, pump the ,degasser, you have is probably a 4 channel inmost cases the dionex technicians use the degaser channel of D in order to connect the solvent line used by the syringe in order to have a good degassed solvent there. for …

WATERS ALLIANCE E2695 OPERATOR'S MANUAL Pdf …
WATERS ALLIANCE E2695 OPERATOR'S MANUAL Pdf …

Page 36 1 Getting started with the Alliance e2695 Separations Module Digital signal control of an ,HPLC, system: IEEE-488 RS-232 connector cable e2695 Separations Printer Module IEEE-488 connector ,Waters, 2487 ,Waters, dual wavelength 2414/2410 RI UV detector detector In the System Controller mode, the separations module can control as many as three detector channels on the …

HPLC & GC Servicing - Jaytee Biosciences Ltd
HPLC & GC Servicing - Jaytee Biosciences Ltd

Jaytee offer ,HPLC & GC Servicing, and ensures that you achieve the right level of cover. ... ,Pressure, Regulators for Millipore ... History reports can be instrument, system or location specific detailing not only ,fault,/solution but can also include costs reliability/downtime analysis in real time.

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