Beijing Jinzhengmao Technology Co., Ltd
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Jinzhengmao 10K closed-loop low-temperature thermostat
Jinzhengmao 10K closed-loop low-temperature thermostat is mainly used for magnetic measurement, optical measurement, photoelectric reaction, light ref
Product details

10K closed-loop low-temperature thermostat

Jin Zhengmao10KClosed cycle low-temperature thermostatCCSClosed Cycle System)The refrigeration machine has been utilizedG-MThe thermodynamic cycle principle compresses and expands helium gas. The compressor provides the high-pressure helium gas required during the cycle, which is transmitted to the cold head through a flexible metal helium gas pipeline. The compressed helium gas expands and cools inside the cold head, and the expanded low-pressure helium gas returns to the compressor for repeated cycles. The refrigeration unit includes two stages of cooling stages,The first stage cold stage is used to cool the anti thermal radiation screen around the sample, and the second stage cold stage is used to cool the sample.

Jin Zhengmao10KClosed cycle low-temperature thermostatProvided by Jinzhengmao Technology Co., Ltd10KClosed cycle low-temperature thermostats are produced by domestic and foreign companiesGMA variable temperature and low temperature platform based on a refrigeration machine, combined with a high-precision temperature controller, can control the temperature of the sample throughout the entire working range, with simple operation and low maintenance costs.

Scope of use:Mainly used for magnetic measurement, optical measurement, photoelectric reaction, light reflection, fluorescence, and magnetic resistance experiments in low temperature and vacuum environments.

advantage:

Compact structure, high cost-effectiveness, low temperature without refrigerant consumption, long maintenance cycle, strong scalability, and easy use;

The sample is in a high vacuum environment or atmosphere;

Integrated optical windows with multiple optional window materials

Multiple gold-plated oxygen free copper sample holders can meet the measurement needs of different experimental requirementsQuick replacement of sample holder

Suitable for electrical, optical, and magnetic measurements in low-temperature environments

Silicon diode thermometer orCernoxthermometer(Used in strong magnetic fields)Installed on the cold finger

The compressor can choose between air cooling and water coolingLong maintenance cycle;

Multiple options can meet the measurement needs of different experiments.

Standard configuration:

A set of vacuum hood

temperatureOne sensorAlong with a temperature controlled heater

Gold plated oxygen free copper sample holder

Vacuum suction portKF25

Vent valveKF16

※ One 8-pin electrical vacuum connector, one temperature sensor and heater share a 6-core connector

Supporting compressor, cold head drive line, high-pressure helium pipe, and toolkit

A set of standard cold head placement brackets

purpose

Mainly used for magnetic measurement, optical measurement, photoelectric reaction, light reflection, fluorescence and magnetoresistance in low-temperature and vacuum environments, including material research, superconductivity, cold pump, cold screen, and helium liquefaction experiments.

matrix isolation

High temperature(700KDLTStest

Mossbauer spectroscopy

tallTc

※ PLtable

photoelectric effect

※ UV/VIS/IRSpectral measurementtry

Optional configuration:

Rotating vacuum hood

Atmosphere import end

Larger sample space

Various low-temperature electrical leads (coaxial line, tee shaft, phosphor bronze twisted pair, microwave half steel cable, etc.)

※ DLTSFour probe sample holder

Electrical connector(BNCSMASMKAnd multi pin connectors)

Special shaped windows (such as concave windows), fifth window (bottom window)

Beijing Jinzhengmao Technology Co., Ltd. accepts any form of customization, with high precision and short cycle time.


in common use10KRefrigerator specifications and parameters

in common use10KTechnical specifications and parameters of refrigeration head and compressor

Cold head model

CH-202

CH-204

CH-204NOptional

KDE210SA

Low temperatureas low as

10K

10K

6.5K

10K

Cooling time

90min to 20K

40min to 20K

60min to 10K

60min to 10K

Refrigeration capacity

1.8W@20K& 7.3K@77K

6.7W@20K& 13.5W@80K

2.5W@20K&

2.5W@20K& 40W@45K

Cold head weight

6.8Kg

7.8Kg

7.8Kg

17.8Kg

compressor

HC-4E(Water cooling)

KDC6000V(Water cooling)

power consumption

2.6KW at 50Hz/1Phase

7.2KW at 50Hz/3Phase

Cooling water inlet flow rate and temperature

2.7L/ min@4-27

7-10L/min@28℃)

size

504*430*485mm

613*442*600

Compressor weight

75Kg

118Kg

Maintenance Cycle

30 000h

36Month


Integrated specifications and parameters

model

project

CH-202

CH-204

CH-204NOptional

KDE210SA

temperature range

10K-325K

Required vacuum degree

1Pa

Experimental type

electricity

optics

electricity

optics

electricity

optics

Sample holder size

15*25mm

15*25mmCenter openingΦ10mmclear aperture

20*30mm

20*30mmCenter openingΦ10mmclear aperture

15*25mm

15*25mmCenter openingΦ10mmclear aperture

Vacuum hood size

Φ31.8mm

40*40mm

Φ41.8mm

50*50mm

Φ31.8mm

40*40mm

Sample holder terminal

8individual

not have

8individual

not have

8individual

not have

temperature sensor/heater

The standard configuration for temperature sensors is a silicon diode,The standard configuration of the heater is50W

OPTICAL WINDOW

not have

1-5individual

not have

1-5individual

not have

1-5individual

pourThe optical sample holder can have light holes in the middle, and the size can be specified by the user.

Sample holder options

model

Specifications and Parameters

describe

notes

T8015

15*25mm

Additional electrical sample holderup and downhave8Root terminal post

1All standard equipment10KThe thermostat is equipped with a sample holder by default, and the size can be made according to the standard or designed according to the specific requirements of the user. If the design is complex, fees can be charged at the discretion of the user;

2Equipped with an optical sample holder as standard, it comes with a sample tablet with holes on the tablet that have the same diameter as the through-hole;

310KThe cooling power of the refrigeration machine varies slightly, and the size of the sample holder can be adjusted within a certain range according to the specific power;

T8020

20*30mm

Additional electrical sample holderup and downhave8Root terminal post

T8030

30*35mm

Additional electrical sample holderThere are left and right8Root terminal post

T8040

40*45mm

Additional electrical sample holderThere are left and right8Root terminal post

T8115

15*25mm

additionallightSample SeatIn the middle, there areΦ8The through-hole

T8120

20*30mm

additionallightSample SeatIn the middle, there areΦ10The through-hole

T8130

30*35mm

additionallightSample SeatIn the middle, there areΦ15The through-hole

T8140

40*45mm

additionallightSample SeatIn the middle, there areΦ20The through-hole

T8205

Φ5mm

Powdered sample container, with one side of the container5mmwindow

T8210

Φ10mm

Powdered sample container, with one side of the container5mmwindow

Optical window options

Window panel model

Window panel specifications

describe

notes

W-20

Φ20*1.5mm

Extra quartz window

1The specifications of the windows are all based on the visible area, but the actual size is larger than the visible area;

2Window installation can be selectedORing compression or low-temperature epoxy resin bonding. If the vacuum hood size is small, try to use adhesive as much as possible

W-40

Φ40*2mm

Extra quartz window

K9-W20

Φ20*1.5mm

additionalK9window

K9-W20

Φ40*2mm

additionalK9window

F-W20

Φ20*1.5mm

Additional calcium fluoride window

F-W40

Φ40*2mm

Additional calcium fluoride window

Cable options

name

describe

notes

PTFE wire

Ordinary wire, large heat leakage, diameter0.1-0.3between

The cable does not require the use of a single type of ordinary PTFE wire. It is required to be made according to the requirements, and the wire should be used in conjunction with the corresponding connector

Low temperature coaxial line

Low signal interference and accurate measurement

Phosphor bronze twisted pair cable

Poor thermal conductivity, small heat leakage, diameter0.2mm4Root)

Microwave semi-rigid cable

High frequency cables, used for high-frequency signals

Connector options

Electrical connector model

Specifications and parameters

describe

T91-8POrdinary glass sintering

8pin

Add a quick plug and unplug feature8POrdinary electrical connector

T91-12POrdinary glass sintering

12pin

Add a quick plug and unplug feature12POrdinary electrical connector

T91-SMA

0-18GHz

Equipped with flexible cables

0-12.4GHz

Equipped with semi-rigid and semi flexible cables

T91-BNC

0-4GHz

Equipped with ordinary coaxial line

T91-TRX

Triple coaxial connector

Add a quick plug three coaxial connector

T91-S

Stainless steel junction box

Add a stainless steel junction box

T91-PTEF

PTFE wiring cover

Add a PTFE plate wiring cover on the stainless steel junction box

remarks:

1All thermostats come with two connectors when they leave the factory, one for installing temperature sensors and heaters, and the other for preparing connectors for other performance measurements. When more testing lines are needed, installation holes need to be added or one or more connectors need to be installedBreakout Box.

2In the table above, there areT91-SOption, this option's wiring board and housing form a grounding system as a whole, while the other option isT91-PTEFOption, this option uses PTFE board insulation connection between the shell and the installed joint, and the electrical performance of the shell and joint is independent of each other. Attention should be paid to this issue when selecting.

Water cooling machine selection

There are options for split and integrated, please refer to the color page of the water cooler for details

Selection of mechanical pumps and molecular pumps

The standard configuration is a mechanical pump. If higher vacuum is required, both domestic and foreign molecular pumps can be selected according to the vacuum pump selection table.

Jijia Temple, Fengtai District, Beijing8name21Building125name

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