Product Overview
1. Product Name
Constant temperature and humidity test chamber
2. Product model
ORF-HWSP350D-2K
3. Instrument functions
① Simulate -40/+150 in a natural environment (customers can specify other temperature zones)
② Equipped with multiple protective devices to achieve timing function
4. Meet customer needs
① Temperature -60 ℃~+150 ℃
② Humidity range: 20% RH~95% RH; Humidity fluctuation: ± 1% RH; Humidity uniformity: ± 3% RH
③ Temperature control: ± 1 ℃
④ Inner box size: Depth * Width * Height mm (or similar size)
⑤ Open lead holes on both sides, misaligned holes, 80-100mm
5. Sample limitations
This experimental equipment prohibits:
① Testing or storage of samples containing highly corrosive substances
② Testing or storage of volatile and toxic substance samples
6. Capacity, size, and weight
6.1 Nominal internal volume
About 350L
6.2 Internal dimensions
Depth * Width * Height mm
6.3 External dimensions
6.4 Weight
About 160KG
6.5 Load bearing capacity of storage rack
2 layers of 30kg stainless steel with punched holes
7. Performance
7.1 Test Environment Conditions
Under the conditions of an ambient temperature of+25 ℃, relative humidity ≤ 85%, and no sample in the test chamber
7.2 Testing Methods
GB/T 5170.2-1996 Temperature Test Equipment
7.3 Temperature Range
-60 ℃ →+150 ℃ (can be set arbitrarily)
7.4 Temperature fluctuation
≤± 0.5 ℃ (unloaded)
7.5 Temperature uniformity
≤± 2 ℃ (unloaded)
7.7 Heating/cooling time
About 1.0 ℃ -3.0 ℃/min
7.8 Load situation
no-load
7.9 Meet the test standards
① GB/T 2423.1-2001 Test A: Low temperature test method
② GB/T 2423.2-2001 Test B: High temperature test method
③ GJB 150.3-1986 High Temperature Test
④ GJB 150.4-1986 Low Temperature Test
⑤ IEC68-2-1 Test A: Cold
③ GB 11158 Technical Conditions for High Temperature Test Chambers
④ GB/T 2423.2 Basic Environmental Testing Procedures for Electrical and Electronic Products - Test B: High Temperature Test Method
8. Structural features
8.1 Thermal insulation enclosure structure
① Outer wall material: SUS430 cold spray paint
② Inner wall material: Mirror stainless steel plate SUS # 304
③ Body insulation material: high temperature resistant rigid polyurethane foam+high temperature resistant glass wool
④ Door insulation material: high temperature resistant rigid polyurethane foam
8.2 Air conditioning channel
① Stainless steel long shaft centrifugal fan: 3 units/90W
② Heater, evaporator, pressure balancing port, adjustable air guide plate, temperature sensor
8.3 Standard configuration of test chamber
Window 300x450x40mm 3-layer vacuum tempered glass
② Flat embedded handle,
③ Door hinge: SUS # 304 imported hinge
⑤ Internal energy-saving lamp: Philips PL lamp/09W
⑥ Stainless steel SUS # 304 grid style steel plate storage rack, 2 pieces, with a maximum load-bearing capacity of 30KG per layer
⑦ Stainless steel SUS # 304 adjustable spacing 40mm storage rack track 2 sets
⑧ Wire holes: 4 pieces (2 on each side) with a diameter of 50-80mm, as per customer requirement
8.4 Box door
① Single piece door, open outward, hinge on the left, handle on the right (when facing the front of the box)
② Equipped with observation window W300xH450mm defogging tempered glass and Philips lighting
③ Frame/door frame anti condensation electric heating device
8.5 Control Panel
7-inch controller display screen, operation monitoring indicator, fault buzzer, USB communication interface
8.6 Mechanical Room
Refrigeration unit, compressor water tray, pressure relief device, refrigeration maintenance and repair device
8.7 Distribution control cabinet
Distribution board, cooling fan, main power switch device, branch power switch device
8.8 Heater
① Heating resistance wire+high-strength heating ceramic anti vibration and temperature resistance 1600 ℃
② Heating control method: SSR (Solid State Relay) contactless equal period pulse width modulation
⑨ Thermal power: approximately 3KW
8.9 Dehumidification function
① Use intelligent timing/scheduled dehumidification function
② Dehumidification can be carried out using hot air bypass technology without affecting the testing progress
③ Compared to other methods, it saves about 30% energy
8.10 Power cord holes and drainage holes
Located on the back of the box
9. Refrigeration system
9.1 Refrigeration compressor
Original French Taikang medium high pressure commercial fully enclosed compressor
9.2 Cold and hot exchange device
The design of ultra high efficiency SWEP cold coal cold and heat exchange, made in Sweden (sus # 316), has higher efficiency than traditional internal spiral type
9.3 Heat load regulation
Automatically adjust the cold coal flow rate using a computer, effectively removing the heat load of the tested product and the German/Japanese technology
Surgical synchronization Traditional design has high control stability and reproducibility, achieving super efficiency of power saving and low humidity
9.4 Cold and hot devices
European and American high-efficiency energy-saving low-temperature refrigeration system (air-cooled cooling method)
9.5 High efficiency components
① The condenser and evaporator adopt AC&R compound turbulence type aluminum fin device
② All flow devices use imported cooling accessories castel.
9.6 Expansion System
Capacity controlled refrigeration system (T2 copper seamless capillary tube)
9.7 Control mode of refrigeration unit
① The controller of the control system automatically adjusts the operating conditions of the refrigeration machine according to the test conditions
② Evaporative pressure regulating valve
③ Compressor return air cooling circuit
④ The design of the refrigeration system includes vibration reduction and noise reduction measures such as shock absorbers
9.8 Refrigerant
DuPont R404a (with an ozone depletion index of 0)/non-toxic and environmentally friendly composite refrigerant from the United States
10. Electrical control system
101 Controller Model
Weishuo/Youyi
10.2 Temperature and humidity controller
Adopting the original 7-inch microcomputer color LCD display touch screen, it has a wide viewing angle in both Chinese and English, high contrast function for temperature and humidity, and programmable controller. It has 100 sets of programs and 1200 segments of memory, with 99 hours and 59 minutes per segment. It can be divided and set arbitrarily, and comes with multiple sets of PID control functions
10.3 Controller specifications
① Accuracy: Temperature ± 0.1 ℃+1 digit, humidity ± 1% R.H+1 digit
② Resolution: Temperature ± 0.01 ℃, humidity ± 0.1% R.H
③ Temperature slope: adjustable from 0.1 to 9.9
④ Equipped with upper and lower limit standby and alarm functions
⑤ Temperature and humidity input signal dry wet bulb PT100x2
⑥ 9 sets of P.I.D control parameter settings, P.I.D automatic calculation
⑦ Dry wet bulb automatic calibration
10.4 Screen Display Function
① Face to face dialogue with drawing, no need for button input, touch options directly on the screen
② The temperature setting (SV) and actual (PV) values are displayed directly
③ It can display the current program execution number, segment number, remaining time, and number of cycles
④ Accumulated operation time function
⑤ The temperature program setting value is displayed as a graphical curve, with real-time display of program curve execution function
⑥ With a separate program editing screen, each page can input at least 120 segments of temperature, humidity, and time
⑦ Chinese and English can be switched freely.
⑧ Fault prompt screen display, historical fault record display.
⑨ The screen can be adjusted for backlight.
⑩ The screen display protection function can be set to timed, TIMER, or manually disabled
10.5 Program Capacity and Control Function
① Available program groups: up to 100 large segments, 1200 small segments
② Repeatable command execution: Each command can be executed up to 3200 times.
③ The production of the program adopts a conversational style, with functions such as editing, clearing, and inserting.
④ Set the duration from 0 to 99Hour59Min for a short period of time.
⑤ Equipped with power-off program memory, it automatically starts and continues to execute program functions after power restoration.
⑥ Equipped with RS-232/485 communication interface.
⑦ Real time display of graphical curves during program execution.
⑧ It has the function of automatically adjusting the freezing capacity.
⑨ It has the function of scheduled startup and shutdown.
⑩ It has date and time adjustment functions.
⑪ Button and screen lock (LOCK) function
11. 9 safety protection devices
11.1 Protection of refrigeration system
Compressor overheating
Compressor overpressure
11.2 Temperature and humidity protection
Temperature over temperature protection alarm (screen setting)
Test box temperature upper limit protection alarm (independent mechanical adjustable)
Heater short circuit fault protection
Fan motor overheat protection
11.3 Other
earth leakage protection
Overload and short circuit protection
power failure protection
12. Transportation
size
weight
Maximum transportation size (excluding packaging): refer to "External dimensions“
Maximum transportation weight (excluding packaging): see "Weight“
13. The user guarantees the following conditions for use
installation site
The ground is flat and well ventilated
There is no strong vibration around the equipment
There is no strong electromagnetic field around the equipment
There are no flammable, explosive, corrosive substances or dust around the equipment
There is appropriate space for use and maintenance around the equipment, as shown in the following figure:
environmental conditions
Temperature: 5 ℃~35 ℃ ② Relative humidity: ≤ 85% ③ Air pressure: Standard atmospheric pressure
power supply conditions
power supply
AC220V live wire+neutral wire+protective ground wire load greater than 3KW, current greater than 15A
Voltage allowable fluctuation range: AC (220 ± 10) V
Allowable frequency fluctuation range: (50 ± 0.5) Hz
The grounding resistance of the protective grounding wire is less than 4 Ω
Require users to configure corresponding capacity air or power switches for the equipment at the installation site, and this switch must be independently used for the equipment
Requirements for storage environment
When the equipment is not working, the temperature of the environment should be maintained within 0 ℃ to+45 ℃
The humidity should be maintained within the range of 30% to 60%