1*10-5PA Thermal Vacuum Test Chamber Laboratory Environmental Testing Equipment

• Mass Scope of Workpiece: <900kg
• Type: Universal Testing Machine
• Maxcapacity: >1000KN
• Accuracy Grade: 0.5
• Load Way: Electronic Load
• Loading Method: Dynamic Load
• Model NO.: TVC
• Display: Digital
• Weight: 0-100Kg
• Power Source: AC380V
• Oil Cylinder Position: Under
• Transport Package: Strong Wooden Case
• Specification: 30L
• Trademark: Grandetop
• Origin: China
• HS Code: 8514199000
• Production Capacity: 50per/Month

Product Description

Product Description

Thermal Vacuum Chamber

Testing aerospace equipment before the first flight into space is a requirement in order to be able to predict the behaviour of these valuable components. They are tested by simulating space conditions. The GRANDETOP® Thermal Vacuum Chamber accurately reproduce space conditions and make it possible to conduct such a test in a completely controlled environment.Our high-performance pump systems can reach a vacuum of up to 10^-9 mbar and 10^-7Pa. Liquid nitrogen, which circulates in the temperature vacuum cabinet produces temperatures from -270°C to +3000°C. Features, such as infrared radiation or a spacial temperature gradient, can be simulated according to the customer's requirements.

 

Product Parameters

Vacuum Limit (Reference):3kPa,1kPa,10Pa,133Pa,0.000001Pa,-0.1MPa,0.001mmHg,0.05Torr,1*10^-5Pa,1*10^-6Pa,1*10^-7Pa,1*10^-9Torr,1*10^-9mbar

Temperature Range (Reference): -190ºC, -160ºC, -150ºC, -120ºC, -100ºC, -80ºC, -70ºC, -60ºC, -40ºC,-20ºC, 0ºC~+150ºC, 200ºC, 250ºC, 300ºC, 400ºC, 500ºC, 600ºC, 700ºC, 800ºC, 900ºC, 1000ºC, 1200ºC, 1400ºC,1600ºC, 1800ºC, 2000ºC, 2500ºC, 3000ºC 
 

1. Vacuum Limit: better than 1×10^-8Pa
2. Working vacuum:better than 1×10^-5Pa
3. Temperature range: -190ºC~200ºC
4. Temperature Accuracy:±0.5ºC
5. Temperature of the heat sink: ≤100K
6. Uniformity of heat sink temperature: ≤±5ºC
7. Black paint for inner wall of heat sink, Absorption of sunlight by heat sink≥0.95 Hemispheric emittance≥0.90, The outer surface is equipped with radiation shield.
8. Infrared heating heat flux density 100W/m²~1800W/m²
9. With vacuum degree and temperature measurement function

1. SCOPE
A) Supply, Delivery, Installation, Commissioning, Training, After-Sales Support of Thermal Vacuum Chamber (TVC); 
B) Supply of Mechanical Compressor Cooling Systems and Liquid Nitrogen.
C) Liquid Nitrogen Exhaust & Vaporizer
2. TECHNICAL SPECIFICATIONS

The TVC System will be used for thermal vacuum cycling to test if the satellite system can survive in the space environment. 
The schematic of the fully integrated TVC System. The "TVC System" or "System" means the Thermal Vacuum Chamber (TVC), Mechanical Compressor Cooling Systems,LN2 Tank and LN2 Exhaust & Vaporizer.
Technical Parameters:

TVC Thermal Vacuum Chamber/Outer Space Simulation Test Chamber
Container way	Horizontal					Vertical
Model No	TVC-500	TVC-1200	TVC-1500	TVC-2000	TVC-2500	TVC-3000
Working Diameter(mm)	500	1200	1500	2000	2500~17000	3000~17000
Working Length(mm)	1000	1500	2000	3000	5000~32000	6000~32000
No-load Vacuum Limit /Pa	1×10^-5Pa					1×10^-5Pa
Vacuum Limit(Option)	3kPa,1kPa,10Pa,133Pa,0.000001Pa,-0.1MPa,0.001mmHg,0.05Torr,1*10^-5Pa,1*10^-^6Pa,1*10^-^7Pa,1*10^-^9Torr,1*10^-^9mbar
Temperature Range /ºC	-190ºC~3000ºC
Temperature Range(Option)	-190ºC, -160ºC, -150ºC, -120ºC, -100ºC, -80ºC, -70ºC, -60ºC, -40ºC,-20ºC, 0ºC~+150ºC, 200ºC, 250ºC, 300ºC, 400ºC, 500ºC, 600ºC, 700ºC, 800ºC, 900ºC, 1000ºC, 1200ºC, 1400ºC,1600ºC, 1800ºC, 2000ºC, 2500ºC, 3000ºC
Refrigerating Method	Liquid refrigerant,Refrigerating machine,Nitrogen gas temperature,Bath oil temperature, Imported compressor,Tecumseh compressor(or Compressor),finned type evaporator,air(Water)-cooling condenser
Infrared heating mode	Infrared heating array,Infrared heating cage
irradiance	100W/m^2~2200W/m^2
Irradiation way	solar simulator,Ultraviolet irradiation simulator,Lighting environment simulation system
power conditions	AC 3Ψ 220V;3Ψ380V; 3Ψ480V+N+G, 60/50Hz
Customized Service	Welcome to custom size, Non-standard,Specail requirements,OEM/ODM orders.
The technical information will be subjected to change without notice

 2.1 Thermal Vacuum Chamber (TVC)
a) The TVC should be compatible with operation in a class 100k clean room environment. 
b) The Chamber body should be cylindrical in shape as shown as belows:


c) The thermal shroud internal dimensions, i.e. the working space of the TVC should be custom size based on your requirements.
Figure 3 shows the TVC Front view and cross section. 

d) The thermal shroud should house a base plate of size 800 mm (length) x 600 mm (breadth). The base plate should have an array of M6 X 1.0 mm mounting holes with a depth of at least 10 mm. The array shall have a pitch of 50 mm X 50 mm to mount the Device Under Test (DUT) onto the base plate. 
e) The base plate should be designed with rails which allows at least 50% of the base plate to slide out of the chamber once the chamber door is open. 
f) The chamber should be designed considering a DUT of mass 50 kg that has a maximum size of 350 mm (length) X 300 mm (breadth) X 300 mm (height) and a heat load of less than 200W 
g) The distance between the cleanroom floor and the top surface of base plate of TVC should be between 1000 to 1100 mm.
h) The angular displacement of door hinges should be more than 170 degrees. There should be a mechanical interlock to restrict the door from swinging back once the door is opened. 
g) The chamber body should be mounted horizontally on a supporting structure. 
h) The overall loading with any additional support structure for the TVC should not exceed 4 kN/m2 which is the limit for the designated area to house the TVC. 
i) The TVC should be able to be brought into the designated area through a door opening of size.Custom requirements will be negotiated

J)Feedthrough/view Ports

The chamber should have the following feedthrough connectors:

1. 1. At least Two (2) 9-pin D-sub feedthrough (≥ 5 A current capacity)

At least Two (2) 15-pin D-sub feedthrough (≥ 5 A current capacity)

1. 1. At least Two (2) 25-pin D-sub feedthrough (≥ 5 A current capacity)
   2. At least Three (3) 37-pin D-sub feedthrough (≥ 5 A current capacity)
   3. At least Ten (10) SMA feedthrough (Female to Female, DC - 12 GHz)
   4. At least Four (4) continuous high voltage feedthroughs (> 15 kV)
   5. At least Six (6) continuous high current feedthroughs (> 25 A current capacity)
   6. At least twenty (20) Feedthrough for T type thermocouples
   7. At least One (1) blank feedthrough with usable diameter ≥ 160 mm

3. Illumination
 a) The chamber should be illuminated by lamp/LED with ON/OFF switch to observe the DUT through the view port.
4. Welding
 a) All welding processes and procedures involved in the System should be certified and compliant with ISO, GB, ASME or equivalent standards 
b) All joints (fixed and demountable) should be leak tested with HE-mass spectrometer. Leak rate must be less than 1 x 10-8 mbar litre/second. Test report should be provided.
5. Chamber Venting
 a) Under vacuum condition, venting should be achieved in less than 20 minutes by passing clean air through a 5-micron class filter. 
6. Control and Instrumentation System (CIS)
a) All the equipment such as vacuum pumps and drive motors should be controlled from CIS. 
b) Supplier should provide a suitable Personal Computer (PC) based Graphical User Interface (GUI) with all licenses in the name of National University of Singapore for the CIS. 
c) The GUI of the CIS should fulfill the following tasks: 
i. Display temperature of the DUT, shrouds and base plate
ii. Display pressure of the vacuum chamber
iii. Display functional status of all System components and safety interlocks
iv. Display the state of main process regulation loops such as shroud temperature control
v. Display temperature profiles of shroud and DUT with proper scaling as a function of time
vi. Custom program generation, storage and execution 
d) There should be a fully automated computer controlled start up and shut down of the System. 
e) The CIS should acquire data from the temperature sensors on the shrouds, base plate and DUT as well as the data from the pressure sensors of the chamber. 
f) Data logging should have a failsafe mechanism that prevents any loss of test data during power/System failure. 
g) Salient features of CIS Hardware/Software: 
i. Data acquisition period should be programmable through the GUI of the PC system
ii. Data should be recorded at a sampling time of at least 1 second
i. Acquisition and recording of data should last for a duration of at least 365 days
7.Thermal Control System (TCS)
a) The thermal control system (TCS) for the TVC should be capable of handling a DUT mentioned in 2.1f.
b) The TCS should consist of: 
i. One (1) cylindrical shroud
ii. One (1) front circular shroud
iii. One (1) back circular shroud
iv. One (1) baseplate
v. Embedded heaters on the shrouds and base plate, rated at 10.0 kW or more. An example of the distribution of heaters is as follows:
· 5 kW on the cylindrical shroud
· 2 kW on the front and back circular shroud
· 3 kW on the base plate 
c) The temperature of the shrouds and the base plate of the chamber should be controlled by embedded heaters for heating and with Liquid Nitrogen (LN2) for cooling.
d) The temperature of the shroud and the base plate should be controllable within the range of  -190 °C to +200 °C. 
e) Temperature ramp rate during heating should be +2 °C/min or faster. 
f) Temperature ramp rate during cooling should be -2 °C/min or faster. 
g) Outgassing requirement of the shroud and base plate for space environment application are given below as per ECSS-Q-70: 
i. Outgassing:· % Total Mass Loss (TML) : < 1· % Collected Volatile Condensable Material (CVCM) : <0.1 
h) TCS should have the following independent temperature control channels for heating and cooling. The distribution of these channels should be as per shown in Table 1.

Component	Channel for cooling	Channels for Cooling	Channels for Heating
	Mechanical Compressor	LN2	Embedded Heaters
Base plate	One	One	One
Front Circular Shroud	One	One	One
Back Circular Shroud	One	One	One
Cylindrical Shroud	One	One	One

Table 1: Number of channels for Thermal Control System
 

1.  TCS should have two (2) modes of thermal control:Automatic control mode

and Manual control mode 
j) Under automatic control mode, the shroud temperature and base plate temperature are automatically controlled by the set point temperature defined on the DUT, cooling via LN2 and heating via embedded heaters. The injection of LN2 and heater power to control the shroud temperature should be automatically controlled through a computer with GUI program to the pre-defined set point temperature as per programmable thermal cycle profile. Each control loop should have its own programmable thermal cycle profile. 
k) Under manual control mode, the shroud temperature, base plate temperature, heater power and user added external heater power should be controlled by the user through a computer with GUI program following a programmable set heater power and temperature profile. 
l) There should be sufficient thermocouples  attached to the shroud and base plate to measure their temperature. Average reading of these thermocouples should be used for thermal control. The readings from these thermocouples should also be used to measure the uniformity condition.
m) User should be able to set the DUT set point temperature based off One (1) thermocouple or an average of at least Ten (10) thermocouples.
7. Temperature Sensors and Instrumentation
a) GRANDETOP®  should use IEC (International Electrotechnical Commission) standard to select temperature sensors. 
b) There should be at least twelve (12) class-1 T-type thermocouples or PT100 platinum resistance thermometers (PRTs) for temperature control (8 on the shroud and 4 on the baseplate). 
c) There should be at least twenty (20) class-1 T-type thermocouples or PT100 platinum resistance thermometers (PRTs) for temperature monitoring of the DUT. 
d) At least one (1) class-3 T type thermocouple or PT100 platinum resistance thermometer (PRT) must be installed on each inlet and outlet manifold of thermal circulation system for diagnostic purposes. 
e) Thermocouples connected to the CIS should pass through specialized thermocouple feedthroughs. (Note: Feedthroughs mentioned in section 2.1.1 are reserved for USER DUT and will not be used for temperature monitoring and connection to the CIS.)
8.Vacuum System
a) The vacuum system should have a pump down time of less than 120 minutes to reach a vacuum condition of 1 x 10-5 mbar or lesser from the ambient condition without a DUT. 
b) The vacuum system should have at least two (2) vacuum gauge/gauges installed at appropriate locations to accurately measure the vacuum level of the chamber.
c) The vacuum level of the chamber should be within the tolerance defined in Table 2.

Test Parameters		Tolerances
Pressure	> 1.3 mbar	±15%
	10 x10-3 mbar to 1.3 mbar	±30%
	< 1.3 x10-7 mbar	±80%

Table 2: Maximum allowable tolerance of pressure in vacuum chamber
8.Vacuum Pump Exhaust
a) A vacuum pump exhaust without suction fan is provided.Customer should review the existing exhaust providedduring the site visit for compatibility
with their proposed System.
9.TVC System Temperature Control Performance
 a) TVC System temperature control performance using "automatic control mode" is given in Table 3.

Test Parameters		Tolerances
Set point Temperature (ºC)	From -170 ºC to +100 ºC	+/- 5°C or better
	Below -170 ºC or above +100 ºC

Table 3: Temperature Control Performance for automatic control mode 

b) The automatic control mode specified in 2.2j) should have an accuracy defined in Table 3 or better (excluding the accuracy of thermocouples). The accuracy should be demonstrated using the base plate as the temperature set point: 
i. Set point temperature is maintained at a temperature of -100 °C with a uniformity of +/- 5 °C or better (excluding the accuracy of thermocouples
ii. Set point temperature is maintained at a temperature of +100 °C with a uniformity of +/- 5 °C or better (excluding the accuracy of thermocouples) 
iii. TVC vacuum maintained at 1 x 10-5 mbar or less 
iv. The temperature of the base plate starts at room temperature 25 °C, ramp up to +100 °C at +2 °C /min followed by dwell for 2 hours, ramp down to - 100 °C at -2 °C /min followed by dwell for 2 hours and ramp up back to 25 °C at +2 °C /min. 
For automatic control mode given in 2.2j, the temperature uniformity of the shroud and baseplate within the temperature range of +150 °C to -173 °C should be within +/- 10 °C or better. The uniformity should be demonstrated during each dwell period. The uniformity shall be achieved within 1 hour from the dwell   
starting time. 
10. Electrical Power Distribution
a) Electrical power distribution and switching panel should provide power distribution for all the electrical components using appropriately sized starter/relay switches. 
b) All necessary actions should be taken to protect the safety of both personnel and equipment when designing the electrical power distribution and switching panel. 
c) The System should operate at:
i. either 415 V/60/50 Hz 3-phase supply with a full load current of less than 29A
ii. or 2-phase 220 V/60/50 Hz single-phase supply 
d) The System should not require more than 50 kW during operation. The System should have an external/internal Residual Current Circuit Breaker (RCCB) rated at 100 mA or less
11.Quality Standards
 a) The System should be manufactured using a Quality Management System (QMS) that complies with the International Quality System Standard ISO 9001:2015.
12.Technical Related Requirements
 a) The supporting structure of the chamber should be made from high strength steel, carbon steel and aluminum with wheels attached. 
b) The chamber body should have a single door wing with hinges to access the working space of the chamber. 
c) The chamber body should be isolated from all induced vibrations generated from the components of the TVC using suitable bellows or similar flexible couplings. An example would be isolation of mechanical vibrations generated by vacuum pumps. 
d) The TVC should be mounted rigidly on a movable platform with jack provisions and this platform should meet all necessary safety and structural requirements. 
e) SMA feedthroughs should be fitted with SMA male terminated dust caps equipped with a small chain on both sides. SMA feedthrough connectors and dust caps should be made from stainless steel with a gold plated finishing. 
f) All feedthrough connectors should come with its corresponding dust caps, protective covers or dummy connectors. 
g) The chamber venting 5-micron filter should be easily replaceable as part of the chamber maintenance. 
h) All the temperature sensors attached to shroud and base plate should be installed such that they can be removed for calibration and reinstated without affecting the performance.
i) All input and output cables of the CIS shall be properly identified and tagged. 
j) All electric cables from the electric power distribution system shall be properly identified and tagged. 
k) The cryogenic supply pipeline from the Liquid Nitrogen (LN2) tank to the TVC should have a diameter of 12.7 mm (0.5 inch) or more. 
l) The cryogenic vent pipeline from the TVC to the mechanical vaporizer system should have a diameter of 12.7 mm (0.5 inch) or more

13.Mechanical Compressor Cooling Systems,LN2, STORAGE TANK, EXHAUST AND VAPORIZER
Supply of Mechanical Compressor Cooling Systems, LN2, Provision of LN2 Tank, Exhaust and Vaporizer
a) GRANDETOP®  should arrange for the supply of Liquid Nitrogen (LN2) with the TVC System for a period of three (3) years commencing upon completion of commissioning. 
b) Supply of LN2 should have a purity percentage of more than 99.95%. 
c) The estimated consumption of LN2 is approximately 45,000 litres per annum. 
d) GRANDETOP® s should provide a Liquid Nitrogen (LN2) storage tank with capacity of 2000 litre to 6000 litre for a period of three (3) years under rental term, commencing upon acceptance of Certificate of Compliance. 
e) The Liquid Nitrogen (LN2) storage tank should not exceed the allocated gas yard area stated in Gas.
f) GRANDETOP®  should also provide a vaporizer to convert liquid nitrogen in the 
Exhaust to its gaseous state for a period of three (3) years under rental term, 
commencing upon acceptance of Certificate of Compliance. The vaporizer should be sized to provide full conversion from liquid nitrogen to gaseous nitrogen. 
g) All LN2 related piping should be well insulated with Polyurethane (PU) of thickness at least 100 mm. 
h) GRANDETOP®  shall ensure that the installation of the gas yard, LN2 storage tank, exhaust and vaporizer is completed within 6 months from date of award. GRANDETOP®  shall supply and top up LN2 within 2 working days from notification by,provided that GRANDETOP®  shall automatically top up the LN2 supply during the operational period in accordance with (i) below. 
i) During the operational period and use of the LN2, LN2 tank level should not fall below an unsafe level nor a level that will lead to a major disruption of 
LN2 supply to the TVC System. Fall in LN2 level below a certain threshold should trigger a low level alarm which is followed by an automatic top up from the LN2 supplier. Customer shall give the LN2 supplier at least 15 working days advance notice of the operational period. 
j) GRANDETOP®  should perform all maintenance and servicing work (including replacement of parts), within the designated LN2 tank area (including all maintenance and servicing of the LN2 storage tank, exhaust and vaporizer), at no cost whenever required. Preventive maintenance of the LN2 tank, exhaust and vaporizer should at least be conducted annually during the three (3) year rental period. 
k) Scheduled annual maintenance of LN2 storage tank, exhaust and vaporizer shall be arranged with at least 2 weeks prior to performing any maintenance 
and servicing work. 
l) Non-scheduled maintenance and repair works on the LN2 storage tank, exhaust and vaporizer should be attended to within 4 hours of notice and should not cause any major disruption to the LN2 supply. All non-scheduled maintenance and repair works should be completed within 2 weeks from date of notification. 
m) The LN2 tank should be fitted with a telemetry system whereby the LN2 usage is remotely monitored and LN2 delivery should be timely to ensure that there will be no major disruption of the LN2 supply to the TVC during the 
Operational period. 
n) During the non-operational period, the LN2 tank should be kept at in 'standby mode'. LN2 tank level may be required to fall below a nominal level. The LN2 tank level should be maintained at the required positive pressure to prevent atmospheric air from entering the tank and should be performed at no cost. 
o) LN2 supplier should be able to deliver an estimated 3,000 litres a day for a period of at least 5 days during the operational period. 
p) A 24-hour call line should be available for emergency purposes. 
q) GRANDETOP® s shall quote the following in the Schedule to Form of Customer: 
i) Supply, Delivery and Top Up of LN2 (price shall be quoted per kg) for a period of three (3) years. The price shall include all delivery charges to End User.
ii) Monthly rental cost of the LN2 storage tank, exhaust and vaporizer for a period of three (3) years (which includes maintenance and parts replacement) as described above) 
 

Packaging & Shipping

Our Advantages

 

Customer Visiting

Certifications

FAQ

FAQ

Q1: Are you manufacturer?
Yes, we are manufacturer. You are welcome to visit our company and check every steps which we are manufacturing Environmental test chambers.


Q2: Which languages can your team support?
Our team can support you Engilsh, Chinese, Spanish, Indonesian(Bahasa Indonesia), Japanese.

Q3: If we order is big test chambers from you, how should we install it at our side?
We offer the service of on-site installation and traning for you.

Q4: Excellent after sale service?
Free parts warrantly for 12 months. We can offer support via email, telephone, skype., etc.
On-site technical support can be available with charges by the customers.

Q5: Good Packaging:
The chamber will be covered with air bubble film before put into wooden case, which not only has good shock absorption, impact resistance, heat sealing and also has the advantages of nontoxic, odorless, moisture corrosion, good transparency.