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14 days ago

Operations Manual

0 AnswersIs any one have a operations Manual for Rudolph Research J157 Automatic Refractometer. please contact me or email pdf to rizvi@scinteck.com

Rudolph Research Analytical - J157
RE: Rudolph Research Analytical - J157
14 days ago

Reagent mask

0 AnswersHow can I use reagent with failed calibration

Reply to Attik
Roche - cobas e 411
RE: Roche - cobas e 411
1 Answer We have an Optima TLX here in our lab...manufactured 2011, purchased in refurb/used condition circa 2015. We don't have a service contract so we are kind of on our own for maintenance (which is where I come in, as the only EE in a biotech lab). Anyhow our ultra recently started putting up VAC error that could not be cleared. I used the 411 code to display vacuum value and it was only getting down to about 2000 micron.

I checked the vacuum pump oil level display and it was very low, oil was black w/ lots of sediment. Was able to safely remove pump, drained old oil, added new oil (of the correct type, from Ideal, per the pump labeling) to flush pump, then drained that after running until hot and replaced w/ clean oil again. After replacing pump in unit with fresh oil, unit achieved ~11 microns after leaving powered on for several hours, but seemed to be stuck there refusing to go below 10.

Today I am planning to double check and hopefully re-seat the vacuum hose connection with some high vacuum grease. It was pretty difficult to get that hose off in the first place, I ended up having to cut the end and lost about 3/4" in the process (though there seems to be enough left for it to go straight up from the fitting at both ends).

But - I am wondering what the likelihood is that the diffusion pump also needs service/an oil change? How often is that generally done? And does the apparent 11 micron vacuum value suggest anything in particular re the diffusion pump?

Another thing: I do see some small surface(?) cracks in the larger rubber hose leading from the diffusion pump to the chamber. They don't seem to penetrate all the way through...but seeing them is worrisome, so does anyone here have a good online source to order these replacement hoses? Thanks in advance...

- Corwin

Reply to CorwinAC
Beckman Coulter - Optima™ TLX
RE: Beckman Coulter - Optima™ TLX
14 days ago

Bad Seal?

0 Answers I was offered one of these from storage that has a "bad seal." I was wondering if someone has a clue where this part would be located (I am assuming around the lid) and how difficult it would be to replace.

Thermo Scientific - CryoPlus Storage System
RE: Thermo Scientific - CryoPlus Storage System
0 Answers While doing power on , white screen appears with no letter only one escalamation mark shows in left side


Reply to CORE
Sartorius - BSA Series
RE: Sartorius - BSA Series
0 Answers Hello,

If possible, please explain aboutanode characteristics ofBioscan model AR-2000, such as, the material, diameter,...


Reza Bagheri

Amirkabir University of Technology


Reply to RBagheri
Bioscan - AR-2000
RE: Bioscan - AR-2000
15 days ago


0 Answers I recently bought a IKA C-Mag HST stirrer and hot plates. It is not working and making sound with error 25. Could you please write me, how to correct it. It is blinking with ER25. Thanks --Pandian

Reply to RPandian
0 Answers I need to know how to set the alarm on a panasonic model SR-L6111_PA as I don't have the manual.


Reply to Phil Vinson
0 AnswersDoes anyone have a manual for the PE ATD 400 Automatic Thermal Desorption Unit?

Thanks, Scott

Reply to aiservices
0 Answers HI

Can the G-Storm GS1 perform a self test? IF so, how isthis achieved?



Reply to ACast
G-Storm - GS1
RE: G-Storm - GS1

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