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Liquid Nitrogen Dewar63

Question and Answer: Remote Alarm Contacts & Liquid Nitrogen Pressures

Remote alarm contacts   Q. Please let us know whether the TEC-2000 have a volt-free contact?   A. I suppose that they are inquiring whether it has dry alarm contacts, which normally...

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Liquid Nitrogen Dewars67

Damage from Overfilling your Liquid Nitrogen Dewar

Some of our customers have expressed concern over experiencing sudden vacuum loss to a few of their cryogenic dewars. These were returned to the factory and immediately leak checked. They were then revac'd...

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Liquid Nitrogen Dewar 57

Cryogenic Power Supply Change

The power supply, normally supplied by MDC, has been changed over to the Jerome transformer as published at the beginning of the year. The change out to Jerome is relatively painless as the MDC supply...

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Liquid Nitrogen Storage, Liquid Nitrogen Freezers68

Liquid Nitrogen Storage Environments

Cryogenic Freezers: Liquid Nitrogen Storage Supply An ample supply of refrigerant must be maintained where liquid nitrogen (LN2) refrigeration is in work. At least three-day supply of liquid...

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Liquid Nitrogen Freezer55

Question and Answer: Cryogenic Freezers

Q. Can you tell me the reason why the lid switch was added to the 511?   A. Effective June 04, the lid switch was added to the 511.  For UL compliance it was added.  We will begin applying the...

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Liquid Nitrogen Dewar50

New Chart Literature Library

Chart’s Marketing Department is delighted to inform you of the launch of our new online Literature Library. Under the ‘Marketing Services’ category of the company website, Chart’s internal users...

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Liquid Nitrogen Dewars46

Liquid Nitrogen Storage Inventory System

Inventory Systems To tracks the location and status of every sample in the Liquid Nitrogen Repository, an inventory system must be in place. Recommendation: Repositories should utilize a...

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Liquid Nitrogen Dewar47

Power Supply Change in Interface Kit

The interface kit’s (10740221) original power supply was 10751166, and this was ceased by the supplier in 2000 February. When it was discontinued by the supplier, it was replaced by 10829461 through...

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Liquid nitrogen storage freezers60

Liquid Nitrogen Storage Advancement

The need to preserve biological and environmental specimens for research use and to ensure species' biodiversity requires the continual advances of techniques for long term cryogenic storage that will...

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Liquid Nitrogen Dewar57

Question and Answer: Freezer Fill Fail

Q: A new freezer had failed to fill and it is equipped with new dual solenoid valves from Alcon. When called for, the LN2 would not flow. We found what looked like defective coils-very low magnetic field -...

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