Functions/Features and Standards of Programmable Constant Temperature and Humidity Testing Machine
Functions/features and standards of programmable constant temperature and humidity testing machine:
1Functions and Features
●This testing machine is mainly used for adaptability testing of electronic, electrical, food, automotive, rubber and plastic, metal and other products, components and materials during storage, transportation and use in high and low temperature alternating humid and hot environments;
●It is a testing and quality control project for various electronic, electrical, electrical, plastic and other raw materials and devices to withstand cold, heat, moisture, and dryness
Reliability testing equipment;
●Especially suitable for fiber opticsLCDCrystals, inductorsPCBHigh temperature resistance of products such as batteries, computers, mobile phones, rubber, plastics, etc
Low temperature and moisture resistance cyclic test;
●New modeling design, high quality appearance, systematic design and manufacturing based on the essence of advanced technology from Japan and West Germany
●Balanced temperature and humidity control system（BTHC）, in order toPIDMethod controlSSRMake the heating and humidification capacity of the system equal to the sensible heat loss,
Therefore, it can be used stably for a long time;
●Arc shaped and matte line treatment, high-quality appearance, and use flat non reactive handles, easy to operate, safe and reliable; fully enclosed
Structure, using a powerful circulating motor and a low-noise refrigeration device; Equipped with shock-absorbing pads, the machine can maintain quietness and stability during operation
stable.
2Reference standards:
Inspection criteria:Jjf- 1101，GB/T 10592，GB/T 10586
Testing standards:YD/T 2061，HB 7122.3，6783.7，GJB 5382.7，GJB 150，GB/T 2423， 5170.2，5170.5、
5179.2， ASTM E512，NF EN 60068-2-38，CNS 12565，12566，KS C0227，KS C022
3Technical parameters:
1）Temperature range：-50℃-100℃
2）Temperature fluctuation: ±0.3℃
3）Temperature resolution:0.01℃
4）Temperature deviation: ±1.0℃
5）Temperature uniformity: ±1.0℃
6）Heating time:RT→150℃ ≤60 min
7）Cooling time:RT→-20℃ ≤50 min
8）Humidity range:20-98%RH
9）Humidity fluctuation: ±2.0％RH
10）Humidity resolution: ±2％RH
11）Humidity uniformity:3.0％RH
12）Volume: Internal dimensions:（L×W×H）=400mm×500mm×400mm
External dimensions:（L×W×H）=950mm×1650mm×1150mm
13）power supplyAC 1∮，220V，50Hz，27A
14）Sample restriction: This equipment cannot be used to test or store items containing flammable, explosive, or volatile or corrosive gases
Note:
1）The temperature and humidity sensor is set at the air outlet of the air conditioning box
2）The uniformity of temperature and humidity is measured at the geometric center point of the laboratory, based on the measured data of temperature and humidity
3）The above data performance, measurement, and calculation methods refer toGB5170.2TheGB5170.5Method for determining temperature and humidity control range diagram:
3、 Original device configuration
1. Outer box material:SUS＃304Stainless steel plate or rust resistant cold-rolled steel plate（powder coating）
2. Inner box material:SUS＃304Heat resistant and cold resistant stainless steel plate
3. Insulation material: rigid polyurethane foam+Ultra fine glass fiber
4. Moisturizing Material: Fiberglass
5. Heater: Nickel chromium alloy stainless steel tube heater
6. Humidifier tube: stainless steel electric evaporation steam generation methodUShape humidifier
7. Box door: Single panel door, window450mm×300mm×40 mmThree layers of vacuum
8. Water tank: stainless steel water tank, automatic water supply pump, water shortage alarm device, water shortage alarm, long-term water shortage shutdown protection
9. Freezing system and heating system:
1）Heater: Nickel chromium alloy stainless steel tube heater
2）Binary freezing technology and cascade refrigeration technology
3）Compressor: French Taikang or German Gulun compressor,Fully enclosed type
4）Refrigerant:R23 / R404AEnvironmentally friendly refrigerant（DuPont, USA）
5）Condenser: Wave shaped fin type forced air supply condenser
6）Evaporator: slope typeFIN-TUBEevaporator
10. Humidification and dehumidification system:
1）Adopting electronic parallel micro humidification system,Three imported magnetic spring switches are attached,Can reduce erroneous actions caused by electronic devices
2）The humidifier cylinder is made of stainless steel as a whole,And accompanied by a water level observation window
3）Dew point temperature of evaporator coil（ADP）Laminar contact dehumidification method
4）Equipped with dual protection device for overheating and overflow,Can be used with peace of mind
5）Humidification/Dehumidification system * independent
6）The supply of humidification cylinder water should be pure water orROReverse osmosis water
11. Supply air circulation system
1）Multi blade centrifugal circulating fan,Strengthen the axis+Made of aluminum alloy for high and low temperature resistant rotating blades,To achieve forced convection
2）FLOW THROWair supply mode;Horizontal diffusion, vertical heat exchange, arc-shaped cycle
3）Adjustable side blowing air outlet and protective net return air outlet
12. control system
1）Control method:PIDcontrol
2）Show off Show:CLCDColor LCD display screen.
3）System capacity:10Group ProgramX100paragraph,The number of segments required for each program can be arbitrarily divided,Each group of programs can be freely connected to each other
4）Loop setting: Each set of operating programs can be executed, nine hundred and ninety-nineRepeated execution of loops or countless iterations,And it can be further segmented to that extent5 Block the number of segments to execute additional partial loops
5）Operation mode: Fixed value/program/Three operating modes, including connection, can meet various temperature testing conditions for execution
6）Control mode: intelligent microcomputerPID+SSR/SCRAutomatic forward and reverse bidirectional synchronous output
7）Data setting: Built in program directory management,Facilitating the establishment of various experimental names and program data,Change, review, or execute
8）Curve drawing: Once the data setting is completed, the set curve for obtaining relevant data can be obtained immediately,During operation, the actual operating curve can also be displayed on the drawing screen
9）Timing control:2Group timing output control interface,collocation10Time control mode for planting,Can be driven by external logic components to perform startup/Timing planning for stopping
10）Reservation start: All testing conditions can be set to reserve the function of startup and operation
11）Operation lock: can lock the start and stop function conditions,Prevent other personnel from accidentally touching and affecting the experimental results
12）Power outage reset: equipped with power-off memory device and restart mode of the machine during power restoration:1.BREAK （interrupt）The2.COLD
（Cold machine startup）The3.HOTHot engine start-up）
13）Safety Notice: Built in15A fully functional system detection and perception device,To ensure the safe operation of the machine,Immediately cut off the control power of the machine when sensing abnormal faults,And automatically display the time of the fault occurrence,Abnormal projects and elimination measures
14）Abnormal tracing: can display historical data of abnormal faults
15）External protection: One electronic over temperature protection device independent of the controller
16）Communication interface:RS-232The standard communication interface device,Can be used with computers（PC）Simultaneous online multi machine control and management
17）Display switch: Medium/Display subtitles in English,freely switchable
13Main electrical components:Taiwan, China Tai'an AC contactor, thermal relay, time relayOMRONCommunication relay?Korean ternary controller, Italian dry burn protector, etc
14Safety device:?Water shortage protection, water shortage shutdown protection, compressor high pressure protection,?Compressor overheat protection, compressor overheating Load protection, fast fuse, buzzer alarm, overload protection
15Installation environment:
1）temperature0℃～35℃, relative humidity: ≤85%, Air pressure:86kPA～106kPa
2）The installation site should have a flat ground and good ventilation
3）There is no strong vibration around the equipment
4）There is no strong electromagnetic field around the equipment
5）There are no flammable, explosive, corrosive substances or dust around the equipment
6）Leave appropriate space for use and maintenance around the equipment
Kunshan Haida Precision Instrument Co., Ltd;