Industrial Computer Reliability Testing
Industrial computers can be divided into three categories according to their application attributes:
(1) Board class: includes Single Board Computer (SBC), Embedded board (Embedded Board), Black Plane, PC/104 module. (2) Subsystem class: includes single-board computers, boards, chassis, power supplies and other peripherals combined into operational subsystems, such as industrial servers and workstations. (3) System integration solutions: refers to a set of systems developed for a professional field, including the required software and hardware and surrounding, such as automatic teller machines (ATMs). The application of industrial computers widely covers ATM, POS, medical electronic equipment, game machines, gambling equipment, etc. The multi-field industry makes industrial computers must be able to withstand the use of sunlight, high and low temperature, wet and other environments, so the relevant reliability test is the focus of various manufacturers in the research and development test.
Common reliability tests for industrial computers:
(1) Wide temperature test
According to the actual application environment can be divided into four categories: 1. Outdoor: especially for the extreme low temperature or high temperature areas, such as northern Europe and desert countries, the temperature range can be from -50 to 70°C; 2. Enclosed space: for example, where heat sources are generated, such as next to a boiler, the high temperature range is about 70°C; 3. Mobile equipment: such as vehicle equipment, the high temperature can be up to 90°C according to the car area; 4. Special harsh environment: such as aerospace equipment, military, oil drilling equipment.
(2) Aging stress test
The temperature range is from -40°C to 85°C, and the temperature variation rate is 10 °C per minute for cyclic testing
(3) No wind high temperature test
At present, in order to prevent dust, industrial computers are planned to be closed and fanless in the mechanism design, so more and more manufacturers begin to pay attention to high temperature testing in a windless environment to ensure that high temperatures will not collapse
Note: For complete industrial computer test conditions, please consult LAB COMPANION
Accelerated Test of Die Casting at High Temperature and High Humidity
Die casting is a precision casting method, the principle is to melt the better metal [zinc, tin, lead, copper, magnesium, aluminum]... Six kinds of alloy melting, with rapid high pressure mechanical properties into the metal mold, the use of steel mold low temperature rapid solidification molding casting method, die casting is a pressure casting parts, can be manufactured into auto parts, locomotive parts, LED lamps and LED street lights, consumer electronics parts, cameras, mobile phones, communications... In order to confirm whether the die-casting parts can be satisfied with the outdoor environment for a long time and whether there will be related defects, relevant tests need to be carried out through the HAST highly accelerated life testing machine.
Common defects in die casting: cold insulation, cracks, holes
List of common specifications for die casting:
ASTM B85: Standard for pressed Film Casting of aluminum alloys
ASTM B86: Zinc and zinc aluminum alloys
ASTM B176: Copper Alloy die castings
ASTM B894: Zinc-Copper-Aluminum Alloy die casting
ASTM E155: Standard Reference Radiographs for the inspection of Aluminum & Magnesium castings
ASTM B94: Magnesium Alloy mold standard
GB5680: high manganese steel casting
GB9438: Aluminum alloy casting
GB15114: Aluminum alloy die casting
QC273: Technical specifications for automotive zinc alloy aluminum alloy copper alloy die casting parts
YL-J021201: die casting of aluminum alloy cover plate for machine cooler
Die casting test items: metallographic test, mechanical ability, bending test, hardness test, impact test, tensile test, high temperature and high humidity, chemical composition, non-damage inspection (X-ray, fluorescence), residual element analysis, surface defects, dimensional tolerance, microstructure, weight tolerance, air tightness test
Die casting Performance test - high temperature and high humidity accelerated test:
PCT condition: 120℃/100%R.H.
HAST condition: 130℃/85%R.H.
Common missing after high temperature and high humidity accelerated test of die casting:
Die casting in the manufacturing process, if the cleaning is not true, resulting in residual release agent, cutting fluid, saponification fluid on the surface... Such corrosive substances, or other pollutants, under certain temperature and humidity conditions, it is easy to accelerate oxidation or mold, die-casting test product surface with a layer of white powder or yellow, black are oxidation phenomenon.
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
Inverter- Reliability Test
Inverter- reliability test also known as voltage converter, its function is to convert DC low voltage into AC high voltage, some electronic equipment must be driven by AC power, but we provide is DC power, at this time you must use the Inverter, direct current into alternating current to drive the electronic parts. Inverter- reliability test also known as voltage converter, its function is to convert DC low voltage into AC high voltage, some electronic equipment must be driven by AC power, but we provide is DC power, at this time you must use the Inverter, direct current into alternating current to drive the electronic parts.
Relevant test conditions:
Item
temperature
time
other
Initial test at normal temperature
25 ℃
TIME≥2 hours
-
Low temperature initial test
0 ℃ or -5 °C
TIME≥2 hours
-
High temperature initial test
60℃
TIME≥2 hours
-
High temperature and high humidity test
40℃/95%RH
240 hours
-
High temperature storage test
70℃
TIME≥96 hours or 240 hours
-
Low temperature storage test -1
-20°C
TIME≥96 hours
-
Low temperature storage test -2
-40℃
240 hours
-
High temperature and high humidity storage test
40℃/90%RH
TIME≥96 hours
-
Temperature cycle test
-20℃~ 70℃
5 cycle
Room temperature ↓-20 ℃(4 hours)↓ Room temperature (90%RH.4 hours)↓70°C(4 hours)↓ Room temperature (4 hours)
High temperature load test
55 ℃
equivalent load, 1,000 hours
-
Life test
40°C
MTBF≥40000 hours
-
on/off test (power cycle)
-
-
1min:on, 1min:off, 5,000 cycles using equivalent load
Vibration test
-
-
Acceleration 3q, frequency 10~55HZ, X, Y, Z three directions 10 minutes each, a total of 30 minutes
Impact test
-
-
Acceleration of 80g, 10 ms each time, Three times in X, Y, Z directions
Note 1: The tested module should be placed at normal (15~35° C,45~65%RH) for one hour before testing
Applicable equipment:
1. High and low temperature test chamber
2. High temperature and high humidity test chamber
3. Rapid temperature cycle test chamber
EC-85MHPM-W, High load corresponding constant temperature and humidity tank (800L)
Project
Type
Series
ＭＨＰＭ－Ｗ
Function
Temperature and humidity mode
The way of wet ball
Temperature range
-40 ～ + 100 ℃
Humidity range
20 ～ 98%RH
（According to the anaphase 3 items）
Changes in temperature and humidity
± 0.3 ℃ ／ ±2.5%RH
Temperature and humidity distribution
± 0.5 ℃ ／ ±5.0%RH
The temperature drops the time
+20 ～ -40 ℃
Within 75 minutes
Temperature rise time
-40 ～ + 100 ℃
Within 50 minutes
The internal volume of the uterus was tested
800 Ｌ
Test room inch method (width, depth and height)
1000mm × 800mm × 1000mm
Product inch method (width, depth and height)
1400mm × 1190mm × 1795mm
Make the material
External outfit
Test room control panel
machine room
Cold steel plate, cold steel plate beige
(Color table 2.5Y8 / 2)
Inside
Stainless steel plate (SUS304,2B polished)
Broken heat material
Test room
Hard synthetic resin
―
Door
Hard synthetic resin foam cotton, glass cotton
Project
Type
Series
ＭＨＰＭ－Ｗ
Cooling removal, wet device
Cooling-down method
Mechanical section shrinkage mode
Cooling medium
Ｒ４０４Ａ
The oneself can shrink machine
Output (number of staff)
1.5kW （１）
Cooling and dehumidifier
Multi-channel mixed heat sink type
The condenser
Multi-channel mixed radiator sink (air cooling）
Calorifier
Form
Nickel-chromium heat-resistant alloy heater
Volume
3.5kW
Humidifier
Form
Steam generation
Volume
1.8Kw×2
Blower
Form
Multi-channel mixed radiator sink (air cooling）
Motor capacity
40W
Feed water unit
The water supply cylinder Water supply method
Water quality
Pure water ＊ Automatic water supply
（"Please refer to the automatic water supply."）
Volume
Gravity type
Moisturizing disk
Gravity type
Controller
Temperature setting range
-42.0 ～ + 102.0 ℃
Humidity setting range
0 ～ 98%RH （Dry Bulb Temperature 10 ～ 85 ℃ ）
Time set range
0 ～ 999Time of 59 min（Program setting type） 0 ～ 20000 Time of 59 min（The value type）
Set decomposition energy
Temperature 0.1℃, humidity 1% RH for 1 min
Indicate accuracy
Temperature ± 0.8℃ (tp.), humidity ± 1% RH (tp.), 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
98 times maximum or unlimited
Number of round-trip repeats
Maximum 3 heavy
Displace the end
Pt 100Ω （ at 0 ℃ ）， grade Ｂ（ JIS C 1604-1997 ）
Control action
When splitting the PID action
Internal 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
ＭＨＰＭ－Ｗ
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
Humidifier
Air burning prevention device, humidifying disc water level regulator
Blower
Overload protection device
Control panel
Leakage breaker for power supply, fuse (for heater, humidifier),
Fuse (for operating loop), temperature rise protection device (for testing),
Temperature rise overcooling prevention device (test material, in microcomputer)
Offproducts (sets)
House receiver (4), house board (2), wet ball wick (15), operation manual (1)
Equipment products
Adventitia
Hard borosilicate glass 800mm× 800mm
2
Cable hole
Bore size 50mm
１
The trough inside the lamp
AC100V 15W White hot ball
２
Wheel
４
Horizontal adjustment
４
Electrovirus characteristics
Source
AC three-phase 380V 50Hz
Maximum load current
25A
Capacity of the leakage breaker for the power supply
50A
Sensory current 30mA
Power distribution thickness
14mm2
Rubber insulation hose
Coarseness of grounding wire
5.5mm2
Tubing
Drain-pipe
PT1/2
Product quality
550kg
Comprehensive Test Chamber
Equipment features:
Can be connected to a vertical vibration table or to both vertical and horizontal vibration tables simultaneously;
You can choose functions such as device lifting and device translation;
High strength and high reliability structural design - ensuring the high reliability of the equipment;
The studio material is SUS304 stainless steel - with strong corrosion resistance, cold and hot fatigue function, and long service life;
High density polyurethane foam insulation material - ensuring minimal heat loss;
Surface spraying treatment - ensuring the long-lasting anti-corrosion function and appearance life of the equipment;
High strength heat-resistant silicone rubber sealing strip - ensures high sealing performance of equipment doors;
Multiple optional functions (such as test holes, recorders, water purification systems, etc.) ensure that users have multiple functions and testing needs;
Large area electric anti frost observation window and concealed lighting - can provide good observation effect;
Environmentally friendly refrigerants - ensure that equipment better meets your environmental protection requirements;
Customizable size/usage indicators/various optional functions according to user requirements
Temperature control
Can achieve temperature constant control and program control;
The full process data recorder (optional function) can achieve full process recording and traceability of the experimental process;
Each motor is equipped with overcurrent (overheating) protection/heater short-circuit protection to ensure high reliability of air flow and heating during equipment operation;
USB interface and Ethernet communication function enable the device's communication and software expansion functions to meet various customer needs;
Adopting the internationally popular cooling control mode, the compressor cooling power can be automatically adjusted from 0% to 100%, reducing energy consumption by 30% compared to the traditional heating balance temperature control mode;
The key components of refrigeration and electrical control are all made of internationally renowned brand products, which improves and ensures the overall quality of the equipment;
The equipment meets the following standards
GB/T 10592-2008 Technical Conditions for High and Low Temperature Test Chambers
GB/T 10586-2006 Technical Conditions for Damp Heat Test Chamber
GB/T 2423.1-2008 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test A: Low Temperature
GB/T 2423.2-2008 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test B: High Temperature
GB/T 2423.3-2006 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test Cab: Constant Damp Heat Test
GB/T 2423.4-2008 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test Db: Alternating Damp Heat (12h+12h Cycle)
GB/T 2423.22-2008 Environmental testing for electrical and electronic products - Part 2: Test methods - Test N: Temperature changes
GB/T 5170.1-2008 General Principles for Inspection Methods of Environmental Testing Equipment for Electrical and Electronic Products
GJB 150.3A-2009 Military Equipment Laboratory Environmental Test Methods Part 3: High Temperature Test
GJB 150.4A-2009 Military Equipment Laboratory Environmental Test Methods Part 4: Low Temperature Test
GJB 150.9A-2009 Military Equipment Laboratory Environmental Test Methods Part 9: Damp Heat Test
Choosing different vibration table bodies can meet different vibration standard test methods
(e.g. GB/T 2423.35-2005, GB/T 2423.36-2005, etc.).
Three comprehensive test chambers; Temperature, humidity, and vibration three comprehensive test chamber; Technical specifications for temperature/humidity/vibration/three comprehensive testing equipment.
model
THV-500
THV-1000
THV-1500
inside dimension
D
700
900
1250
W
800
1150
1150
H
900
1100
1100
Size of connecting the vibration table（mm）
Horizontal stand ≤400*400 Vertical platform≤Φ400
Horizontal stand ≤600*600 Vertical platform≤Φ600 Single vertical platform≤Φ630mm
Horizontal stand ≤900*900 Vertical platform≤Φ900
Motor cover height（mm）
235
Source
AC380V.50HZ Three-phase four-wire system + grounding wire
Standard layout
One product manual, one test report, one quality certificate and quality guarantee, 2 panels, 2 strips, one blind board, one set of interface board, one set of silicone rubber soft plug
Structure
Hull
Surspray of cold rolled steel plate (ivory white)
Inner tank
Stainless steel sheet and plate
Heat insulating material
Polyurethane foaming
Refrigeration
Refrigeration method
Refrigeration mode of stacked compressor (water cooled)
Refrigerator
German valley wheel semi-closed compressor
Observation window （mm）
400*500
Instrument connection （mm）
One on the left and right sidesΦ100
Controller
Color LCD display touch screen
Recording device
Temperature and humidity recorder (optional)
Communication interface
The RS485 interface. The RS232 interface. Upper position computer operation software (optional)
High, low temperature, and low pressure test chamber
The low-pressure test chamber is mainly used in the fields of aviation, aerospace, information, electronics, etc., to determine the environmental adaptability and reliability tests of instruments, electrical products, materials, components, and equipment under single or simultaneous effects of low-pressure, high-temperature, and low-temperature, and to measure the electrical performance parameters of the test piece when energized.
Product principle and function
The high, low temperature, and low pressure test chamber is mainly used in aviation, aerospace, electronics, national defense, scientific research, and other industrial sectors to determine the storage and transportation reliability test of electrical and electronic products (including components, materials, and instruments) under the single or simultaneous action of high, low temperature, and low pressure. It can also be used to test the electrical performance parameters of the specimens when they are energized.
Editing of structural device for high, low temperature and low pressure test chamber
1. The outer shell is made of cold-rolled steel plate sprayed with plastic or stainless steel, and the inner shell is made of stainless steel
2. Thermal insulation layer: ultra-fine glass wool and hard polyurethane
3. Cooling method: Compression cooling method (air-cooled condenser)
4. Refrigerator: Original French Taikang fully enclosed compressor unit
5. Heater: grade stainless steel fin heater
6. Convection system: Multi blade fan, air conditioning dedicated motor
7. Temperature controller: Digital intelligent temperature controller, using PT-l00 sensor for temperature control.
8. The arrangement of electrical components in the control cabinet is reasonable, the wiring is neat, and labeled sheathed wiring terminals are used.
9. Castor solenoid valve, Danfoss expansion valve
10. High quality vacuum pump
Editing of vacuum system for high, low temperature and low pressure test chamber
1. Composition of vacuum system: The vacuum system is a component that obtains and measures the vacuum degree, consisting of a vacuum measurement system and a vacuum acquisition unit
2. Vacuum measurement: Vacuum measurement is carried out using a pressure sensor. This vacuum gauge uses pressure strain to achieve vacuum measurement, and the measurement data is a linear electrical signal that can be directly input into the device controller for display and control
environment condition
Temperature: 5 ℃~+28 ℃ (average temperature within 24 hours ≤ 28 ℃)
Relative humidity: ≤ 85% RH
Air pressure: 86kPa~106kPa
Power supply conditions: three-phase four wire+protective ground wire, voltage range: AC (380 ± 38) V
Allowable frequency fluctuation range: (50 ± 0.5) Hz
The grounding resistance of the protective grounding wire is less than 4 Ω
Technical specifications of high, low temperature and low pressure test chamber
1. Studio size:
FA-4 4 cu ft (113L)
-73°C to +177°C
N/A
FA-10 10 cu ft (283L)
-73°C to +177°C
20% to 95%RH
FA-16 16 cu ft (453L)
-73°C to +177°C
20% to 95%RH
FA-35 35 cu ft (991L)
-73°C to +177°C
20% to 95%RH
FA-64 64 cu ft (1812L)
-73°C to +177°C
20% to 95%RH
FA-96 96 cu ft (2718L)
-73°C to +177°C
20% to 95%RH
2. Temperature range: -40~150 ℃
3. Temperature deviation: ± 2 ℃
4. Temperature fluctuation: ± 0.5 ℃
5. Temperature uniformity: ≤ 2 ℃
6. Air pressure level: 4-84kpa
7. Heating rate 1.0-3.0 ℃/min
8. Cooling rate 0.7-1.0 ℃/min
9. Control system controller Siemens PLC controller, Siemens color LCD display touch screen
10. Accuracy Range Setting Accuracy: Temperature ± 0.1 ℃, Indication Accuracy: Temperature ± 0.1 ℃, Resolution: ± 0.1 ℃
11. Temperature sensor platinum resistance PT100 Ω/MV
12. Pressure Sensor Electronic Pressure Transmitter
13. Fully independent heating system, nickel chromium alloy electric heating heater
14. Refrigeration system: original French "Taikang" fully enclosed air-cooled single-stage/cascade compressor refrigeration method
15. Temperature resistant and low-noise air conditioning motor for circulation system. Multi blade centrifugal fan
Safety protection device
1. Overload and short circuit protection
2. Overtemperature protection
3. High and low pressure protection of refrigeration unit
4. Alarm sound prompt
Description of Controller Q8-902 for High Low Temperature and Low Pressure Test Chamber
Operating interface
Touchscreen Chinese interface, with digital display, real-time curve, operation selection, timing setting, program setting, alarm, parameter setting and other interfaces
Curve recording function
Can save the set values, sampling values, and sampling time of the device; The maximum storage time is 30 days. Simultaneously storing 5 real-time curves with different capacities and resolutions for 30 days, 7 days, 24 hours, 8 hours, and 1 hour, and displaying real-time data to meet different user needs
Printing function
Connectable micro printer (optional)
Program capacity
Program: Up to 30 curves
Program segment: Each program can have up to 50 segments (total program segment 1200 segments)
Program segment grouping: Each curve can be further grouped into segments according to any continuous segment, up to a maximum of 10 segments can be combined, and segments are allowed to overlap
Internal loop: The program segments within the program are looped in sections as the minimum loop unit, with a maximum of 99 loops per section
Program loop: can loop up to 99 times
Program connection: After the program runs, it can connect to the selected next program
Related standards
In addition to the content specified in this technical requirement, the equipment meets the requirements of GB/T10591 and GB/T10592.
Data and Services
1. Provide technical information such as electrical schematics, consumable parts lists, operation and maintenance manuals for the equipment, as well as technical information for the main purchased supporting parts.
2. Train 1-2 equipment operation and maintenance personnel to fully master the operation skills and general repair and maintenance skills of the equipment.
Within one year from the date of acceptance of the equipment, free after-sales service shall be provided to the buyer, and after one year, accessories of the equipment shall be provided to the buyer at cost price.
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)
Large volume vertical temperature shock test chamber
By alternating the movement of the test specimen between the cold chamber and the hot chamber, the temperature shock test chamber can apply a very, very fast rate of temperature change to the test specimen, which can expose possible defects and also be used to define the service life of the test specimen.
The temperature shock test chamber of Lab Companion TS-2 model is mainly used for heavy loads. Due to its compact structure and small footprint, it is particularly recommended for use in production lines.
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 leads the development direction of domestic environmental testing technology. Currently, the company has independent intellectual property rights for environmental testing equipment, reliability testing equipment, high and low temperature test chambers, high and low temperature humidity test chambers, constant temperature and humidity test chambers, rapid temperature change test chambers, cold and hot impact test chambers, three comprehensive test chambers, high and low temperature and low pressure test chambers, solar radiation test chambers, industrial ovens, cold and hot impact test chambers, walk-in constant temperature and humidity test chambers, environmental stress screening test chambers, walk-in constant temperature and humidity test chambers, high and low temperature impact test chambers. Box, constant temperature and humidity testing machine, constant temperature and humidity testing box, solar radiation testing box, High and low temperature humidity test chamber, temperature and humidity control chamber, UV accelerated aging test machine, UV accelerated weather resistance test machine, walk-in test chamber, walk-in environmental test chamber, walk-in high and low temperature test chamber, temperature and humidity control test chamber, UV climate resistance test chamber, UV aging tester, high and low temperature low-pressure test chamber, rapid temperature cycling test chamber, walk-in constant temperature and humidity test chamber, walk-in high and low temperature humidity test chamber, precision oven, programmable constant temperature and humidity test chamber, programmable constant temperature and humidity test machine, xenon lamp aging test chamber, high and low temperature alternating humidity test chamber, constant temperature and humidity test chamber, as well as walk-in high and low temperature humidity test chamber and high wind speed rain test chamber and other climate and environmental testing equipment and customization The product is at the forefront domestically and at the international first-class level. Welcome new and old customers to contact us for inquiries. We will be dedicated to serving you!
Autoclave or Pressure Cooker Test (PCT)
Autoclave Test, or Pressure Cooker Test (PCT), or Pressure Pot Test (PPOT), is a reliability test performed to assess the ability of a product to withstand severe temperature and humidity conditions.
It is used primarily to accelerate corrosion in the metal parts of the product, www.hast.cn including the metallization areas on the surface of the die. It also subjects the samples to the high vapor pressure generated inside the autoclave chamber. Figure 1 shows examples of autoclave chambers.
Fig. 1. Examples of Autoclave Chambers from Trio Tech
Autoclave testing consists of soaking the samples for 168 hours at 121 deg C, 100% RH, and 2 atm. Intermediate readpoints at 48H and 96H may also be employed.
Surface-mount samples are preconditioned prior to autoclave testing.www.hast.cn. Preconditioning simulates the board mounting process of the customer. It normally consists of a bake to drive away the moisture inside the packages of the samples, a soak to drive a controlled amount of moisture into the package, and three cycles of IR or vapor reflow.
The samples are tested after preconditioning, failures from which are considered as preconditioning failures and not autoclave failures. Preconditioning failures should be taken seriously, since these imply that the samples are not robust enough to even withstand the board mounting process.
Fig. 2. Another Example of an Autoclave Chamber
Because of the extreme moisture condition during autoclave testing, moisture-related electrical leakage failures may be encountered after the test. Unless predefined to be so, www.hast.cn such failures must not be considered as valid PCT failures. Only permanent failures, such as those arising from corrosion, are considered valid PCT failures.
Reliability Tests: Autoclave Test or PCT; Temperature Cycling; Thermal Shock;
THB; HAST; HTOL; LTOL; HTS; Solder Heat Resistance Test (SHRT);
Other Reliability Tests
See Also: Reliability Engineering; Reliability Modeling;
Qualification Process; Failure Analysis; Package Failures; Die Failures
Polarizer Test Conditions
Polarizer is one of the basic parts of the liquid crystal display, is a light plate that only allows a certain direction of light to pass through, in the process of making the liquid crystal plate, must be used above and below each piece, and into the staggered direction placed, mainly used for electric field and no electric field when the light source produces a phase difference and the state of light and dark, to display subtitles or patterns.
Relevant test conditions:
Because the molecular structure of iodine is easy to destroy under high temperature and humidity conditions, the durability of the polarizer produced by iodine dyeing technology is poor, and generally can only meet:
High temperature: 80℃×500HR
Hot and humid: working conditions below 60℃×90%RH×500HR
However, with the expansion of the use of LCD products, the wet and hot working conditions of polarizing products are becoming more and more demanding, and there has been a demand for polarizing plate products that work at 100 ° C and 90%RH conditions, and the highest conditions at present are:
High temperature: 105℃×500HR
Humidity and heat: test requirements below 90℃×95%RH×500HR
The durability test of polarizer includes four test methods: high temperature, wet heat, low temperature and cold and heat shock, of which the most important test is the wet and heat test. The high temperature test refers to the high temperature working conditions of the polarizer at a constant baking temperature. At present, according to the technical grade of the polarizer, it is divided into:
Universal type: working temperature is 70℃×500HR;
Medium durability type: the working temperature is 80℃×500HR;
High durability type: the operating temperature is 90℃×500H above these three grades.
Because the basic materials of the polarizing film PVA film and iodine and iodide are easily hydrolyzed materials, but also because the pressure sensitive adhesive used in the polarizing plate is also easy to deteriorate under high temperature and high humidity conditions, the most important things in the environmental test of the polarizing plate are high temperature and wet heat.
Daily maintenance tips for high and low temperature test chambers and alternating high and low temperature test chambers
1. High and low temperature test chambers are generally relatively high, and we recommend placing them in a relatively benign temperature environment. Our experience temperature value is 8 ℃~23 ℃. For laboratories that do not have this condition, appropriate air conditioners or cooling towers must be equipped.
2. It is necessary to adhere to professional management by dedicated personnel. Units with conditions should periodically send dedicated personnel to the supplier's factory for training and learning, in order to gain more professional experience and ability in maintenance and repair Hongzhan Instrument.
3. Regularly clean the condenser every 3 months: For compressors that use air-cooled cooling, the condenser fan should be regularly inspected and the condenser should be cleaned and dusted to ensure good ventilation and heat transfer performance; For compressors that use water-cooled cooling, in addition to ensuring their inlet water pressure and temperature, it is also necessary to ensure the corresponding flow rate. Regular cleaning and descaling of the condenser interior is also necessary to obtain its continuous heat transfer performance.
4. Regularly clean the evaporator: Due to the different cleanliness levels of the test samples, a lot of small particles such as dust will accumulate on the evaporator under forced air circulation, and should be cleaned regularly.
5. Cleaning and balancing of circulating air blades and condenser fans: Similar to cleaning evaporators, due to the different working environments of the test chamber, many small particles such as dust may accumulate on the circulating air blades and condenser fans, and should be cleaned regularly.
6. Cleaning of waterway and humidifier: If the waterway is not smooth and the humidifier scales, it is easy for the humidifier to dry and burn, which may damage the humidifier. Therefore, it is necessary to regularly clean the waterway and humidifier.
7. After each experiment, set the temperature near the ambient temperature, work for about 30 minutes, then cut off the power and clean the inner wall of the workshop.
If the equipment needs to be relocated, it is best to do so under the guidance of technical personnel from Hongzhan Company to avoid unnecessary damage or damage to the equipment.
When the product is not in use for a long period of time, it should be powered on regularly every half month, and the power on time should not be less than 1 hour.
10. Maintenance principle:
Due to the fact that high and low temperature test chambers are mainly composed of electrical, refrigeration, and mechanical systems, once there is a problem with the equipment, a comprehensive inspection and analysis of the entire equipment system should be carried out.
Generally speaking, the process of analysis and judgment can start with "external" and then "internal", that is, after excluding external factors, the equipment can be systematically decomposed based on the fault phenomenon. Then, the system can be comprehensively analyzed and judged. Alternatively, the reverse reasoning method can be used to find the cause of the fault: first, check whether there is a problem with the electrical system according to the electrical wiring diagram, and finally check whether there is a problem with the refrigeration system. Before understanding the cause of the fault, it is not advisable to disassemble or replace components blindly to avoid unnecessary trouble.
Get A Quote
IPv6 network supported