Precision Oven Manual
Precision ovens are suitable for semiconductor devices in the electronic industry, curing and aging of electronic components, high-temperature precision testing of plastic and rubber, molding processes for telephone handle wires, as well as experimental or workshop production lines in higher education research institutions and industrial and mining enterprises that require high product temperatures.
This instrument is equipped with a two-level temperature control system, dual protection, automatic cut-off for overheating, safe and reliable. The column alarm device has a temperature rise and constant temperature light display. When using this instrument in large quantities in the production workshop, which instrument has reached the constant temperature requirement and which one is still in the heating state can be clearly seen.
The instrument liner is made of high-quality mirror stainless steel, the outer shell is sprayed with plastic, and a safety door lock is installed. The front door adopts a high-temperature resistant glass observation window, which can observe the condition of the test piece inside the box at any time.
Dear customer:
Our company has products such as rapid temperature change test chambers, UV accelerated weather resistance testing machines, and temperature and humidity control chambers. You can call our service hotline through our website to learn more about our products. Our pursuit is endless, and we welcome new and old customers to choose their favorite products with confidence. We will be dedicated to serving you!
A Brief Analysis of the Five Characteristics of Walk in Laboratories
The walk-in laboratory has been upgraded on the basis of the original walk-in laboratory, with the characteristics of large testing space and operators being able to operate the test products in the laboratory, providing conditions for temperature and humidity environment testing for industrial manufacturers' batch or large parts, semi-finished products, and finished products. Adopting advanced Chinese LCD display screen touch screen, various complex program settings can be carried out. The program settings adopt dialogue mode, and the operation is simple and fast. It can achieve automatic operation of the refrigeration machine, maximizing automation, and can be equipped with LAN communication interfaces for users to remotely process and centrally control. It can record temperature and temperature parameters for 90 days, and is equipped with a paperless recorder.
5 characteristics of walk-in laboratory
1. Having an extremely wide temperature and humidity control range, it can meet various needs of users. By adopting a unique balanced temperature and humidity control method, a safe and precise temperature and humidity environment can be achieved. Having stable and balanced heating and humidification performance, it can achieve high-precision and highly stable temperature and humidity control.
2. Equipped with high-precision intelligent temperature regulators, temperature and humidity are displayed using LED digital display. Optional temperature and humidity recorder.
3. The refrigeration circuit is automatically selected, and the automatic control device has the performance of automatically selecting and operating the refrigeration circuit according to the set value of temperature, achieving direct start of the refrigeration machine and direct cooling under high temperature conditions.
4. The inner door is equipped with a large observation window, which facilitates the observation of the experimental status of the test samples.
5. Equipped with advanced safety and protection devices - residual current circuit breaker, over temperature protector, phase loss protector, and water cut-off protector.
Dear customer:
Our company has products such as rapid temperature change test chambers, UV accelerated weather resistance testing machines, and temperature and humidity control chambers. You can call our service hotline through our website to learn more about our products. Our pursuit is endless, and we welcome new and old customers to choose their favorite products with confidence. We will be dedicated to serving you!
The walk-in high and low temperature (humid and hot) laboratory also needs maintenance
Reminder: Remember to maintain the walk-in high and low temperature (humid and hot) laboratory as well!
1. The temperature and humidity testing system of the walk-in high and low temperature (humid and hot) laboratory must be operated and maintained by a dedicated person. Strictly follow the operating procedures of the system and avoid others from operating the system illegally.
2. Long term shutdown of the walk-in high and low temperature (humid and hot) laboratory can affect the effective service life of the system. Therefore, the system should be turned on and operated at least once every 10 days; Do not repeatedly stop the system in a short period of time. The number of starts per hour should be less than 5 times, and the time interval between each start stop should not be less than 3 times; Do not open the door of the walk-in temperature and humidity testing system at low temperatures to prevent damage to the door sealing tape.
3. A system usage file should be established to facilitate system maintenance and repair. The use of archives should record the start and end time (date) of each system operation, the type of experiment, and the ambient temperature; When the system malfunctions, provide a detailed description of the fault phenomenon as much as possible; The maintenance and repair of the system should also be recorded in as much detail as possible.
4. Conduct a monthly main power switch (leakage circuit breaker) operation test to ensure that the switch is used as a leakage protector while meeting the load capacity. The specific steps are as follows: first, please confirm that the main power switch is turned to "ON", which means the system is powered on, and then press the test button. If the switch lever of the residual current circuit breaker falls down, this function is normal.
5. The main box of the walk-in temperature and humidity testing system should be protected during use and should not be subjected to strong impacts from sharp or blunt objects.
6. To ensure the normal and clean supply of cooling water, the cooling water filter of the refrigeration unit should be cleaned every 30 days. If the local air quality is poor and the dust content in the air is high, the cooling water tower reservoir should generally be cleaned every 7 days.
7. The leakage, overload, and short-circuit protection characteristics of the residual current switch are set by Lab Companion manufacturer and cannot be adjusted arbitrarily during use to avoid affecting performance; After the leakage switch is disconnected due to a short circuit, the contacts need to be checked. If the main contacts are severely burned or have pits, maintenance is required.
8. The test products placed in the walk-in temperature and humidity testing system should be kept at a certain distance from the suction and exhaust ports of the air conditioning channel to avoid obstructing air circulation.
9. Overtemperature protector action test. Set the temperature of the over temperature protector to be lower than the temperature of the box. If there is an E0.0 alarm and buzzing sound, it indicates that its function is normal. After completing the above experiment, the temperature protection setting should be reset appropriately, otherwise it may cause inappropriate termination.
10. Once a year, use a vacuum cleaner to clean and remove dust from the distribution room and water circuit room. Once a month, use a dry cloth to clean the accumulated water in the water tray of the refrigeration unit.
EC-85EXT, Superior constant temperature bath (800L)Specifications
Project
Type
Series
ＥＸＴ
Function
Temperature occurs in a way
Dry ball method
Temperature range
-70 ～ + 150 ℃
Temperature variation amplitude
Below the + 100℃
± 0.3 ℃
Above the + 101℃
± 0.5 ℃
Temperature distribution
Below the + 100℃
± 0. 7 ℃
Above the + 101℃
± 1.0 ℃
The temperature drops the time
＋125 ～－55 ℃
Within 36 minutes (10℃ / minute mean temperature change)
Temperature rise time
－55 ～＋125 ℃
Within 36 minutes (10℃ / minute mean temperature change)
The internal volume of the uterus was tested
800Ｌ
Test room inch method (width, depth and height)
1000mm × 800mm × 1000mm
Product inch method (width, depth and height)
1470mm × 2240mm × 2000mm
Make the material
External outfit
Test room control panel
machine room
Cold interductile steel plate is dark gray
Inside
Stainless steel plate (SUS304,2B polished)
Broken heat material
Test room
Hard synthetic resin
glass wool
door
Hard synthetic resin foam cotton, glass cotton
Project
Type
Series
ＥＸＴ
Cooling dehumidifying device
Cooling-down method
Mechanical section shrinkage and freezing mode and binary freezing mode
Cooling medium
Single segment side
R404A
Binary high temperature / low temperature side
R404A ／ R23
Cooling and dehumidifier
Multi-channel mixed heat sink type
The condenser
(water-cooled)
Calorifier
Form
Nickel-chromium heat-resistant alloy heater
Blower
Form
Stir fan
Controllerl
The temperature is set
-72.0 ～ +152.0 ℃
Time setting Fanny
0 ～ 999 Time 59 minutes (programmed type)0 ～ 20000 Time 59 minutes (value)
Set decomposition energy
Temperature 0.1 ℃ ，Time of 1 minute
Indicate accuracy
Temperature ± 0.8℃ (typ.), time ± 100 PPM
Vacation type
Value or program
Stage number
20-stage / 1 program
The number of procedures
The maximum number of incoming force (RAM) programs is 32 programs
The maximum number of internal ROM programs is 13 programs
Round-trip number
Maximum of 98 or unlimited
Number of round-trip repeats
Maximum 3 time
Displace the end
Pt 100Ω （ at 0 ℃ ），grade （ JIS C 1604-1997 ）
Control action
When splitting the PID action
Endovirus function
Early delivery function, standby function, setting value maintenance function, power outage protection function,
Power action selection function, maintenance function, transportation round-trip function,
Time delivery function, time signal output function, overrising and overcooling prevention function,
Abnormal representation function, external alarm output function, setting paradigm representation function,
Transport type selection function, the calculation time represents the function, the slot lamp lamp function
Project
Type
Series
ＥＸＴ
Control panel
Equipment machine
LCD operating panel (type contact panel),
Represents lamp (power, transport, abnormal), test power supply terminal, external alarm terminal,
Time signal output terminal, power cord connector
Protective device
Refrigerating cycle
Overload protection device, high blocking device
Calorifier
Temperature over-rise protection device, temperature fuse
Blower
Overload protection device
Control panel
Leakage breaker for power supply, fuse (heater,),
Fuse (for operating loop), temperature rise protection device (for testing),
Temperature rise overcooling prevention device (test material, in microcomputer)
Pay belongs to the product
Test material shed shed by * 8
Stainless steel shed (2), shed receiving (4)
Fuse
Operating loop Protection Fuses (2)
Operating specification
（1 ）
Else
Bolus (Cable hole: 1)
Equipment products
Adventitia
Hard borosilicate glass270mm× 190mm
１
Cable hole
Bore size 50mm
１
The trough inside the lamp
AC100V 15W White hot ball
１
Wheel
6
Horizontal adjustment
6
Electrovirus characteristics
Source ＊ 5.1
AC Three-phase 380V 50Hz
Maximum load current
60 A
Capacity of the leakage breaker for the power supply
80A
Sensory current 30mA
Power distribution thickness
60mm２
Rubber insulation hose
Coarseness of grounding wire
14mm２
Cooling water ＊ 5.3
Water yield
5000 L /h （When the cooling water inlet temperature is 32℃）
Water pressure
0.1 ～ 0.5MPa
Side pipe diameter of the device
PT1 1/4
Tubing
drain-pipe ＊ 5.4
PT1/2
Product weight
700kg
ER-135MHP-W, Step in constant temperature and humidity bath, constant temperature and humidity chamber style book (water-cooled)
Project
Type
Form
ER - 135MHP-W
Nature
ability
*1
*2
Temperature and humidity mode
The way of wet ball
Temperature and humidity model * 3
-40~+ 80 ℃ /10~95%RH
Temperature and humidity electrode amplitude
± 0.3 ℃ / ± 2.5%RH
Temperature and humidity distribution
± 0.75 ℃ / ± 5.0%RH
The temperature drops the time
+20~ -40 ℃ Within 170 minutes
Temperature rise time
+20~+ 80 ℃ Within 50 minutes
Noise value
*6
Room outside
65dB
Indoor side
79B
Statutory freezing capacity ( 50 / 60Hz )
2.57/2.81
Product shape-inch method (width, depth and height)
Please refer to the configuration diagram
Warehouse board laboratory
Bed area
13 . 0 m2
The shape of inch method
＊７
Wide
3600mm
Deep
3600mm
High
2325mm
Have oneself
Intensification method
＊７
Wide
3450mm
Deep
3450mm
High
2100mm
External materials
Ivory painted steel plate
Inside the material
Stainless steel plate (SUS304)
Broken heat material
Hard synthetic resin
The weight resistance of the board
5.9 k N/ m2 {600 kgf / m2 }
Door (width and height)
830 mm × 1800 mm Single piece open
Measurement (width and height)
190 mm × 320 mm The door
Indoor light capacity (quantity)
60W( 2 individual )
Cable hole
φ 50 1 (500mm from bed surface height, 1 side)
Controller model and shape method
Wide, deep and high
EU - 6 5MH*2 unit 1200 mm × 710 mm × 1940 mm
External outfit
Indoor
stainless steel sheet and plate (SUS304)
Outdoor
L coating color on steel plate; ivory color: color table mark 2.5Y8/2 )
Operate
Steel plate coating color; ivory color: color table mark2.5Y8/2
The oneself can shrink machine
Cooling medium
R404A
Output of freezer 1 (staff)
2.2kW(1) × 2
Cooling and dehumidifier
Multi-channel mixed heat sink type
Condenser (staff number)
Transverse fin type (2) 2
Calorifier
Form
Nickel-chromium heat-resistant alloy heater
Volume
5 . 7kW(3 φ 200V) × 2
Humidifier
Form
SUS 316L Make a surface steam type humidifier
Volume
5 . 4kW(3 φ 200V) × 2
Air supply device
Form (quantity)
Single air supply multi-blade air fan (1)
Survival outside the machine
0 Pa{ 0 mmAq}
Blowing rate
25 (m3 / min )
Back to the uterus
1100( r / min )
Motor form
VTFO-K
Motor output (pole number)
0.75kW(6) × 2
Moisturizing water supply
installation
The water supply cylinder
Water quality * 8
Electrical conductivity is below 10 μ S / cm
Volume
4L × 2
Feedwater
way
Moisturizing disk
gravity type
Wet ball Wick disc
Electromagnetic valve type
Controller
The temperature is set
-42.0 ~+ 82.0 ℃
Humidity is set
0~98% RH ( Dry Bulb Temperature 10 ℃ ~ 80 ℃ )
Time setting Fanny
0 ~ 999 Time 59 points (programmed type)0 ~ 20000 Time 59 points (value)
Set decomposition energy
Temperature 0.1 ℃ , humidity 1% RH , time 1 minute
Indicate accuracy
Temperature ± 0.8 ℃ ( typ. ), humidity ± 1% RH ( typ. ), time ± 100 PPM
Vacation type
Value or program
Stage number
20 stage / 1 form
The number of procedures
Number of incoming force (RAM) programs, maximum 32 programs / internal ROM programs, maximum 13 programs
Round-trip number
Maximum of 98 or unlimited
Number of round-trip repeats
Maximum 3 time
Displace the end
JP t 100Ω (a t 0 ℃ ), grade B(JIS C1604-1997 )
control action
When splitting the PID action
Endovirus function
Early delivery function, standby function, setting value maintenance function, power outage protection function,
Power action selection function, maintenance function, transportation round-trip function,
Time delivery function, time signal output function, overrising and overcooling prevention function,
Abnormal representation function, external alarm output function, setting paradigm representation function,
Transport type selection function, the calculation time represents the function, the slot lamp lamp function
Project
Type
Form
ER - 55MHP-W
Temperature control machine
Control panel
Equipment machine
Color LCD operating panel (force contact mode),
Represents the lamp (power supply, transport, abnormal), test material power supply system royal terminal,
External alarm terminal, time signal output terminal, power cord connector,
Protective device
Warehouse plate test uterine cavity
Test material with
Temperature rise overcooling prevention function (microcomputer: automatic setting)
Temperature rise ter (set: Set above 60℃)
Refrigerating cycle
Overload protection device, high blocking device
Calorifier
Temperature over-rise protection device, temperature fuse
Humidifier
Air burning prevention device (2 weight), wet plate water level regulator
Blower
Overload protection device
Control panel
Leakage breaker for power supply, fuse (for heater, humidifier),
Fuse (for operating loop), fan reverse prevention relay
In addition to control
Frost system
Defrosting method * 5
Stop cycling defrosting (freezer transport stop),
Heat up defrosting
Cold control
But the system
water
Concondensation control mode (quantity)
Water-making valve for cooling water (2) 2
Repeat
measure
Therstat (operated)
300kg × 2
Electricity
Endyceps sinensis
particular
nature
Source
Communication three phases 380V 50Hz
Maximum load current
45A × 2
The power supply uses a leakage breaker
60A ( Sensory current 30mA) × 2
Power distribution
Rubber insulation hose 22m m2 × 2
Coarseness of grounding wire
5.5m m2 × 2
cold
step back
water
*9
Water yield；the yield of water
40L / min ( inlet water temperature 32 ℃ ) × 2
Water pressure
0.1~0.5M Pa{ 1.0~5.0 kgf / cm2 }
water temperature
18~ 32 ℃
Pipe-inch method
Inlet / exit
PT 1 parent seat / PT 1 parent seat
Humidifying water supply pipe distribution inch method * 8
PT 1 / 2 parent seat
arrange
water
Pipe-inch method
drain-pipe
PT 1 / 2 parent seat
Its
Product products (staff)
reduce pressure(1) * 8
Wet ball wick (15)
Take instructions (1)
The first natural environment icing test station in China, jointly built by Chongqing University and Huaihua Electric Power Bureau, has settled in Xuefeng Mountain!
On January 16th, the "Xuefengshan Natural Ice Cover Test Station" Insulator Ice Cover Test Technology Exchange Seminar, jointly organized by Chongqing University and Hunan Huaihua Electric Power Design Institute, was held in Huaihua. Experts in transmission and distribution lines and insulation technology from well-known universities across the country, as well as electrical experts from Japan's NGK company, gathered together to celebrate the official completion of the world's only and China's first natural ice cover test station in Huaihua, Hunan, and to discuss follow-up research matters.
At the meeting, Professor Jiang Xingliang, doctoral supervisor of Chongqing University, first expressed gratitude to Huaihua Electric Power Bureau and various units of the power system for their strong support and assistance in the basic design and construction of the experimental base. The attending experts listened to Associate Professor Zhang Zhijin's report on the construction of the Xuefengshan Natural Ice Cover Test Station and the 2009 Ice Cover Test, shared the ice observation and research results at the test base throughout 2009, and conducted in-depth discussions and research on the existing problems. After the meeting, experts also went to the "Xuefengshan Natural Ice Cover Test Station" for on-site investigation, and representatives expressed their affirmation of the site selection and the construction of the test station.
Professor Jiang Xingliang introduced that since the 2008 ice disaster, in order to prevent a large number of line disconnections, tower collapses, and ice flash accidents caused by severe icing, and to maintain the safe and stable operation of the power grid, the Ministry of Science and Technology of China has listed grid icing and protection technology as one of the important research topics of the National Key Basic Research and Development Plan (973 Plan). With the support of projects such as "Ice Cover, De icing, and Melting Mechanisms of Transmission Lines" by State Grid Corporation of China, Professor Jiang Xingliang's research team conducted a comprehensive investigation of typical ice cover conditions in China, analyzed and compared ice cover phenomena and micro meteorology in Liupanshui, Guizhou, Qinling Mountains, Shaanxi, Jingmen, Sichuan, and Lushan, Jiangxi. Based on the representativeness, duration, and transportation conditions of ice cover, it was determined to establish a "natural ice cover test base" in Xuefengshan, Hunan. It was believed that the natural conditions of Pingshantang in Xuefengshan and the technical strength of Huaihua Design Institute met the requirements for the construction of natural ice cover test bases. Finally, the site selection and cooperation partner were determined.
In 2009, Professor Jiang Xingliang, Associate Professor Zhang Zhijin, and Dr. Hu Jianlin, among other key members of the research group, led more than ten graduate students from the Department of High Voltage and Insulation Technology at Chongqing University to overcome various difficulties in work and life under harsh natural conditions. They worked together with the Huaihua Bureau Design Institute to build a natural experimental base while conducting experimental research. In the first year of the experiment, the icing, thawing, and de icing processes of six typical specifications of conductors commonly used in high voltage, ultra-high voltage, and ultra-high voltage transmission lines were studied. The icing processes of various types of insulators were observed and compared. Multiple technical measures to prevent conductor icing, such as mechanical and hydrophobic coatings, as well as coatings to prevent insulator icing and differences in insulator icing arrangements, were experimentally investigated. The twisting process and mechanism of conductor icing were analyzed, and the tension changes and ice wind load changes after conductor icing were analyzed. In addition, AC and DC icing tests were conducted in natural environments. A large amount of key experimental data was accumulated to overcome the world-class problem of power grid icing, and many effective studies and explorations were made.
Toshiyuki Nakajima, Chief Engineer of the Electric Power Division of NGK Corporation in Japan, stated in an interview with reporters during his inspection of the Xuefengshan Natural Ice Cover Test Station that he has been engaged in research on power grid ice cover in the United States for 10 years. Although international experts have conducted long-term research on power grid ice cover under laboratory artificial simulation conditions, they unanimously believe that there is a significant error between the ice cover form in the artificial simulation environment and the actual situation in the natural environment. The first natural ice cover test station built in Xuefengshan will undoubtedly greatly promote the research process of ice cover and melting mechanisms of transmission lines and the anti ice ability of power grids in China and internationally. He wishes his Chinese counterparts to soon obtain the foundation of ice cover on transmission lines in natural environments. Data fills the gap in international research in this field, Overcome the world-class challenge of power grid icing mechanism and anti icing technology as soon as possible.
Zhang Jiwu, President of the Design Institute of Huaihua Electric Power Bureau, stated that with the strong support of Secretary Liang Liqing of the Huaihua Electric Power Bureau Party Committee, the Xuefengshan Natural Ice Cover Test Station has been built in cooperation with Chongqing University. On the one hand, it can make its own contribution to the research on improving the ice resistance of the power grid and reflect the company's sense of social responsibility; On the other hand, it can also enhance its own technological strength and corporate reputation through cooperation and exchange, improve its external competitiveness, and achieve a win-win situation. It is a model of "industry university research" cooperation between enterprises and higher education institutions. (Shu Daisong and Zhang Deming)
Information source: Hunan Electric Power Company
Lab Companion has a research institution specializing in the development of environmental testing equipment, with mature environmental testing research methods and laboratories. It has gathered a group of excellent talents and well-known experts in the industry, and a strong R&D team is leading the development direction of domestic environmental testing technology. At present, the company has independent intellectual property rights in environmental testing equipment, reliability testing equipment, high and low temperature testing chambers, high and low temperature humidity testing chambers, constant temperature and humidity testing chambers, rapid temperature change testing chambers, cold and hot shock testing chambers, three comprehensive testing chambers, high and low temperature and low pressure testing chambers, solar radiation testing chambers, industrial ovens, cold and hot shock testing chambers, walk-in constant temperature and humidity testing chambers, environmental stress screening testing chambers, walk-in constant temperature and humidity testing chambers, high and low temperature impact testing chambers, constant temperature and humidity testing machines, constant temperature and humidity testing chambers, solar radiation testing chambers, high and low temperature humidity testing chambers, temperature and humidity control chambers, UV accelerated aging testing machines, UV accelerated weathering testing machines, walk-in testing chambers, walk-in environmental testing chambers. Room, walk-in high and low temperature laboratory, temperature and humidity control test chamber, UV weather resistance test chamber, UV aging tester, The climate environment testing equipment and customized products, including high, low temperature and low pressure test chambers, rapid temperature cycling test chambers, walk-in constant temperature and humidity test chambers, walk-in high, low temperature and humidity test chambers, precision ovens, programmable constant temperature and humidity test chambers, programmable constant temperature and humidity test machines, xenon lamp aging test chambers, high and low temperature alternating humidity test chambers, constant temperature and humidity test chambers, walk-in high and low temperature humidity test chambers, and high wind speed rain test chambers, are at the forefront of domestic and international standards. Welcome new and old customers to contact us for inquiries. We will be dedicated to serving you!
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