srobertsphd/mit-labnetwork · Datasets at Hugging Face

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University of Pennsylvania
P: 215-898-7560
F: 215-573-4925
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From r.khanna at ucl.ac.uk Mon Aug 21 12:31:41 2023
From: r.khanna at ucl.ac.uk (Khanna, Rohit)
Date: Mon, 21 Aug 2023 16:31:41 +0000
Subject: [labnetwork] Edwards nXDS6i pump
In-Reply-To: <c71b88506fa24518b113a3c3a1c2d3e0@uni-paderborn.de>
References: <c71b88506fa24518b113a3c3a1c2d3e0@uni-paderborn.de>
Message-ID: <VI1PR01MB6446EBEC07D84AAA6B60BCFAC31EA@VI1PR01MB6446.eurprd01.prod.exchangelabs.com>
Hi Bernhard,
I had a similar issue with the nxdx10i pumps. These units are a little tricky to service as there is a elaborate procedure to remove the bearings from these pumps which involves thermal contraction or expansion to create clearance to remove the bearing one could use a oven to heat the pumps or possibly use liquid nitrogen to cool the metal parts. At the time we bought he pump repair kit Edwards were selling bearing kits for these pumps the first thing I would suggest is check if you can still buy the bearing kits for these pumps. If yes I will be on a position to share more information with you for repairing these pumps. These pumps are good as they have inverter drives for the 3 phase induction/bldc motors however I think the bearing design for these motors is a bit delicate if these pumps are abused.
If needed I will be able to mail you the images I had taken to disassemble the pump.
Warm Regards
Rohit Khanna
Electronic Test & Measurement Engineer
London Centre for NANO Technology, UCL
Ph:+44-020-76799984
Lab: +44 20 3108 1516
Int Ext: 39984
________________________________
From: labnetwork <labnetwork-bounces at mtl.mit.edu> on behalf of Bernhard Reineke <bernhard.reineke at uni-paderborn.de>
Sent: 21 August 2023 08:23
To: labnetwork at mtl.mit.edu <labnetwork at mtl.mit.edu>
Subject: [labnetwork] Edwards nXDS6i pump
? Caution: External sender
Hello,
we have an Edwards nXDS6i pump in our laboratory. The pump is broken and vibrates excessively. As the cost of maintaining the pump by the company is very expensive, we decided to open it and fix it ourselves. However, we can't remove the screw on the pump's back to access the motor compartment. Does anyone know how to remove this screw?
Best,
Bernhard Reineke Matsudo
PHOQS
Paderborn University
33100 Paderborn
Germany
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From dlafleur at cns.fas.harvard.edu Mon Aug 21 13:32:14 2023
From: dlafleur at cns.fas.harvard.edu (LaFleur, David W)
Date: Mon, 21 Aug 2023 17:32:14 +0000
Subject: [labnetwork] Edwards nXDS6i pump
In-Reply-To: <CAGTqYdFxccUvZ8udJ3BxYEytY74Yo3jPDd0mUVseWZyux2YuUw@mail.gmail.com>
References: <c71b88506fa24518b113a3c3a1c2d3e0@uni-paderborn.de>
<CAGTqYdFxccUvZ8udJ3BxYEytY74Yo3jPDd0mUVseWZyux2YuUw@mail.gmail.com>
Message-ID: <29523E08-099D-4DE2-ACCC-AF4C0AAFA2D2@cns.fas.harvard.edu>
Hi Bernhard,
I?ve been in this business for 40 years and from my experience Kyle is absolutely correct. You don?t want to get into rebuilding pumps unless you have a shop and experience personal set up for doing this kind of work. It?s just not worth it. There is a reason why it?s expensive.
David LaFleur
Equipment Engineer
CNS, Harvard University
11 Oxford St.
Cambridge, Ma. 02138
From: "labnetwork-bounces at mtl.mit.edu" <labnetwork-bounces at mtl.mit.edu> on behalf of Kyle Keenan <kckeenan at seas.upenn.edu>
Date: Monday, August 21, 2023 at 11:37 AM
To: Bernhard Reineke <bernhard.reineke at uni-paderborn.de>
Cc: "labnetwork at mtl.mit.edu" <labnetwork at mtl.mit.edu>
Subject: Re: [labnetwork] Edwards nXDS6i pump
Hi Bernhard,
Just my opinion but, in my experience, trying to do anything other than replacing tip seals, o-rings and exhaust valve kits is not worth the time and effort. Any money you save will likely be outweighed by lost productivity, that is, assuming you are able to get the pump working properly, which is much more difficult than it may seem.
Good luck.
Kyle
On Mon, Aug 21, 2023 at 8:22?AM Bernhard Reineke <bernhard.reineke at uni-paderborn.de<mailto:bernhard.reineke at uni-paderborn.de>> wrote:
Hello,
we have an Edwards nXDS6i pump in our laboratory. The pump is broken and vibrates excessively. As the cost of maintaining the pump by the company is very expensive, we decided to open it and fix it ourselves. However, we can't remove the screw on the pump's back to access the motor compartment. Does anyone know how to remove this screw?
Best,
Bernhard Reineke Matsudo
PHOQS
Paderborn University
33100 Paderborn
Germany
_______________________________________________
labnetwork mailing list
labnetwork at mtl.mit.edu<mailto:labnetwork at mtl.mit.edu>
https://urldefense.com/v3/__https://mtl.mit.edu/mailman/listinfo.cgi/labnetwork__;!!IBzWLUs!QY5hf9E96ckkQnYJpebMFKUGFTCj7zs1ykZ6tNshWsCIA2Vvbxg6XnxqYtUJA3lgYg_oh7BLyxBuVUJzBidP5nFdoJoirVeoeBahV4c$<https://urldefense.com/v3/__https:/mtl.mit.edu/mailman/listinfo.cgi/labnetwork__;!!IBzWLUs!QY5hf9E96ckkQnYJpebMFKUGFTCj7zs1ykZ6tNshWsCIA2Vvbxg6XnxqYtUJA3lgYg_oh7BLyxBuVUJzBidP5nFdoJoirVeoeBahV4c$>
--
Kyle Keenan
Senior Manager - Laboratory Operations
Quattrone Nanofabrication Facility
University of Pennsylvania
P: 215-898-7560
F: 215-573-4925
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From christophe.clement at polymtl.ca Tue Aug 22 09:01:00 2023
From: christophe.clement at polymtl.ca (=?iso-8859-1?Q?Christophe_Cl=E9ment?=)
Date: Tue, 22 Aug 2023 09:01:00 -0400 (EDT)
Subject: [labnetwork] Gas controller issue
Message-ID: <08f101d9d4f8$afc19e60$0f44db20$@polymtl.ca>
Hello everyone
A few years ago we bought a gas detection controller type MP204 with SM-95
transmitters from International Sensor Technology .
We currently have a malfunction on the controller (an electronic board has
burned out) and I would like to send the controller for repair. However,
the company seems to no longer exist... their e-mail and website return a
404 error (www.intlsensor.com)
Do you know of a third-party company that would be able to repair this

University of Pennsylvania

P: 215-898-7560

F: 215-573-4925

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From r.khanna at ucl.ac.uk Mon Aug 21 12:31:41 2023

From: r.khanna at ucl.ac.uk (Khanna, Rohit)

Date: Mon, 21 Aug 2023 16:31:41 +0000

Subject: [labnetwork] Edwards nXDS6i pump

In-Reply-To: <c71b88506fa24518b113a3c3a1c2d3e0@uni-paderborn.de>

References: <c71b88506fa24518b113a3c3a1c2d3e0@uni-paderborn.de>

Message-ID: <VI1PR01MB6446EBEC07D84AAA6B60BCFAC31EA@VI1PR01MB6446.eurprd01.prod.exchangelabs.com>

Hi Bernhard,

I had a similar issue with the nxdx10i pumps. These units are a little tricky to service as there is a elaborate procedure to remove the bearings from these pumps which involves thermal contraction or expansion to create clearance to remove the bearing one could use a oven to heat the pumps or possibly use liquid nitrogen to cool the metal parts. At the time we bought he pump repair kit Edwards were selling bearing kits for these pumps the first thing I would suggest is check if you can still buy the bearing kits for these pumps. If yes I will be on a position to share more information with you for repairing these pumps. These pumps are good as they have inverter drives for the 3 phase induction/bldc motors however I think the bearing design for these motors is a bit delicate if these pumps are abused.

If needed I will be able to mail you the images I had taken to disassemble the pump.

Warm Regards

Rohit Khanna

Electronic Test & Measurement Engineer

London Centre for NANO Technology, UCL

Ph:+44-020-76799984

Lab: +44 20 3108 1516

Int Ext: 39984

________________________________

From: labnetwork <labnetwork-bounces at mtl.mit.edu> on behalf of Bernhard Reineke <bernhard.reineke at uni-paderborn.de>

Sent: 21 August 2023 08:23

To: labnetwork at mtl.mit.edu <labnetwork at mtl.mit.edu>

Subject: [labnetwork] Edwards nXDS6i pump

? Caution: External sender

Hello,

we have an Edwards nXDS6i pump in our laboratory. The pump is broken and vibrates excessively. As the cost of maintaining the pump by the company is very expensive, we decided to open it and fix it ourselves. However, we can't remove the screw on the pump's back to access the motor compartment. Does anyone know how to remove this screw?

Best,

Bernhard Reineke Matsudo

PHOQS

Paderborn University

33100 Paderborn

Germany

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From dlafleur at cns.fas.harvard.edu Mon Aug 21 13:32:14 2023

From: dlafleur at cns.fas.harvard.edu (LaFleur, David W)

Date: Mon, 21 Aug 2023 17:32:14 +0000

Subject: [labnetwork] Edwards nXDS6i pump

In-Reply-To: <CAGTqYdFxccUvZ8udJ3BxYEytY74Yo3jPDd0mUVseWZyux2YuUw@mail.gmail.com>

References: <c71b88506fa24518b113a3c3a1c2d3e0@uni-paderborn.de>

<CAGTqYdFxccUvZ8udJ3BxYEytY74Yo3jPDd0mUVseWZyux2YuUw@mail.gmail.com>

Message-ID: <29523E08-099D-4DE2-ACCC-AF4C0AAFA2D2@cns.fas.harvard.edu>

Hi Bernhard,

I?ve been in this business for 40 years and from my experience Kyle is absolutely correct. You don?t want to get into rebuilding pumps unless you have a shop and experience personal set up for doing this kind of work. It?s just not worth it. There is a reason why it?s expensive.

David LaFleur

Equipment Engineer

CNS, Harvard University

11 Oxford St.

Cambridge, Ma. 02138

From: "labnetwork-bounces at mtl.mit.edu" <labnetwork-bounces at mtl.mit.edu> on behalf of Kyle Keenan <kckeenan at seas.upenn.edu>

Date: Monday, August 21, 2023 at 11:37 AM

To: Bernhard Reineke <bernhard.reineke at uni-paderborn.de>

Cc: "labnetwork at mtl.mit.edu" <labnetwork at mtl.mit.edu>

Subject: Re: [labnetwork] Edwards nXDS6i pump

Hi Bernhard,

Just my opinion but, in my experience, trying to do anything other than replacing tip seals, o-rings and exhaust valve kits is not worth the time and effort. Any money you save will likely be outweighed by lost productivity, that is, assuming you are able to get the pump working properly, which is much more difficult than it may seem.

Good luck.

Kyle

On Mon, Aug 21, 2023 at 8:22?AM Bernhard Reineke <bernhard.reineke at uni-paderborn.de<mailto:bernhard.reineke at uni-paderborn.de>> wrote:

Hello,

we have an Edwards nXDS6i pump in our laboratory. The pump is broken and vibrates excessively. As the cost of maintaining the pump by the company is very expensive, we decided to open it and fix it ourselves. However, we can't remove the screw on the pump's back to access the motor compartment. Does anyone know how to remove this screw?

Best,

Bernhard Reineke Matsudo

PHOQS

Paderborn University

33100 Paderborn

Germany

_______________________________________________

labnetwork mailing list

labnetwork at mtl.mit.edu<mailto:labnetwork at mtl.mit.edu>

https://urldefense.com/v3/__https://mtl.mit.edu/mailman/listinfo.cgi/labnetwork__;!!IBzWLUs!QY5hf9E96ckkQnYJpebMFKUGFTCj7zs1ykZ6tNshWsCIA2Vvbxg6XnxqYtUJA3lgYg_oh7BLyxBuVUJzBidP5nFdoJoirVeoeBahV4c$<https://urldefense.com/v3/__https:/mtl.mit.edu/mailman/listinfo.cgi/labnetwork__;!!IBzWLUs!QY5hf9E96ckkQnYJpebMFKUGFTCj7zs1ykZ6tNshWsCIA2Vvbxg6XnxqYtUJA3lgYg_oh7BLyxBuVUJzBidP5nFdoJoirVeoeBahV4c$>

--

Kyle Keenan

Senior Manager - Laboratory Operations

Quattrone Nanofabrication Facility

University of Pennsylvania

P: 215-898-7560

F: 215-573-4925

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From christophe.clement at polymtl.ca Tue Aug 22 09:01:00 2023

From: christophe.clement at polymtl.ca (=?iso-8859-1?Q?Christophe_Cl=E9ment?=)

Date: Tue, 22 Aug 2023 09:01:00 -0400 (EDT)

Subject: [labnetwork] Gas controller issue

Message-ID: <08f101d9d4f8$afc19e60$0f44db20$@polymtl.ca>

Hello everyone

A few years ago we bought a gas detection controller type MP204 with SM-95

transmitters from International Sensor Technology .

We currently have a malfunction on the controller (an electronic board has

burned out) and I would like to send the controller for repair. However,

the company seems to no longer exist... their e-mail and website return a

404 error (www.intlsensor.com)

Do you know of a third-party company that would be able to repair this