10K closed-loop low-temperature thermostat
Jin Zhengmao10KClosed cycle low-temperature thermostatCCS(Closed 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 requirements,Quick 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(700K)DLTStest
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(BNC、SMA、SMKAnd 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 |
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Cold head model |
CH-202 |
CH-204 |
CH-204N(Optional) |
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) |
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power consumption |
2.6KW at 50Hz/1Phase |
7.2KW at 50Hz/3Phase |
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Cooling water inlet flow rate and temperature |
2.7L/ min@4-27℃ |
7-10L/min@(28℃) |
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size |
504*430*485mm |
613*442*600 |
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Compressor weight |
75Kg |
118Kg |
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Maintenance Cycle |
30 000h |
36Month |
Integrated specifications and parameters
model project |
CH-202 |
CH-204 |
CH-204N(Optional) |
KDE210SA |
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temperature range |
10K-325K |
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Required vacuum degree |
≤1Pa |
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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 |
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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 holder,up 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 holder,up 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, diameter0.2mm(4Root) |
|
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:
1:All 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.
2:In 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.
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