LH System

Product Overview

LH System

The horizontal model LH is a low-height, compact and truly horizontal dilution refrigerator system capable of operation under different tilt angles. It is ideal for beamline, telescope or detector experiments.

Eight LOS Access Ports

All line-of-sight ports reach from room temperature to mixing chamber.

  • 2 x KF63 slotted in all flanges
  • 4 x KF40
  • 2 x KF16

Temperature Controller

The Bluefors Temperature Controller enhance the user experience of our cryogenic systems. With a modern and intuitive user interface, you gain direct control and overview of the system’s temperature status.

The Bluefors Temperature Controller is fully-integrated to all dilution refrigerator systems delivered from early summer 2020.

Read more about the Temperature Controller here.


Options

Options

4K Heater Kit

Fully automated fast warm-up option, which allows overnight warm-up for our standard LD systems.

Service Packages and Extended Warranty are available upon request

Technical

Technical Specifications

Note: Cooling power is measured on experimental flange outside MXC.

LH250

GUARANTEED

Base temperature

10 mK

Cooling power @ 20 mK

10 μW
Cooling power @ 100 mK
250 μW

Cooling power @ 120 mK

360 μW

Cool-down time to base

24 hrs


LH400

GUARANTEED

Base temperature

10 mK

Cooling power @ 20 mK

12 μW

Cooling power @ 100 mK

400 μW

Cooling power @ 120 mK

575 μW
Cool-down time to base
24 hrs


Performance

Performance Graphs

Above is a cool-down curve for a configuration of LH system measured with a calibrated resistance thermometer.

Pulse pre-cooling sequence (see spots 2 and 3) is one of the key points in reducing the cool-down time. Because we do not use exchange gas some parts of the DR unit stay ‘hot’ on cool down, which prevents condensation of the mixture. By repeatedly admitting the mixture from the tanks through the low impedance still side of the DR and then pumping it out again, these hot spots are effectively cooled down.


Requirements

Technical Requirements

The basic requirements are 3-phase electricity, cooling water, compressed air. The full list of requirements and specification details can be found in the Pre-Installation Guide, please contact our sales team for a copy.



http://bluefors.com/products/lh-horizontal-dilution-refrigerator/#top

LH System
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