Programmable constant temperature and humidity testing machine

Programmable constant temperature and humidity testing machine belongs to a category of constant temperature and humidity testing machines. The equipment of this testing machine is widely used in some laboratories and colleges, and is also widely used in some industrial testing needs. Our company mainly produces various models of constant temperature and humidity testing machine products. The detailed introduction of this product is as follows.

HY-831Atype

Programmable Temp. & Humi. Chamber

Usage: Used for reliability testing in various industries such as electronic components, plastic parts, computers, etc. in humid and hot environments.

model:HY-831A-150

TECHNICAL INDEX

Inner box size:50×60×50cm

Outer box size:102×107×170cm

Temperature range: 0 ℃, -20 ℃, -40 ℃, -70 ℃~150 ℃

Temperature fluctuation: ≤± 0.3 ℃

Temperature uniformity: ≤ 1 ℃

Temperature deviation: ≤± 2 ℃

Humidity range: 20% to 98% （at15℃～85℃）

Humidity deviation: ≤± 3% R.H. (when ≥ 75% R.H.)

≤±5% R.H.(<75%R.H.When)

Heating time: 25 ℃ → 100 ℃ ≤ 30 minutes (Nonlinear 3-5 ℃/min when unloaded)

Cooling time: 25 ℃ → -20 ℃ ≤ 45min

25℃→-40℃≤65min. (Nonlinear at 1 ℃/min when unloaded)

Meets the standard: This device meets

IEC68-2-1(GB2423.1-2008) Low temperature test;

IEC68-2-28(GB2423.2-2008) High temperature test;

IEC68-2-3(GB/T2423.3-2006) Constant Damp Heat Test;

IEC68-2-30(GB/T2423.4-2008) Alternating Damp Heat Test;

GJB150.3-2009High temperature test;

GJB150.4-2009Low temperature test;

GJB150.9-2009Test standard requirements for damp heat test

Simultaneously satisfying

GB/T5170.2-2008Acceptance criteria for temperature testing equipment;

GB/T5170.5-2008Acceptance criteria for damp heat testing equipment

Structure and Material

Inner box material: SUS # 304 heat-resistant and cold resistant stainless steel first-class mirror light plate

Outer box material: High toughness cold-rolled stainless steel plate coated with solvent-free powder resin

Insulation material: Fire resistant high-strength PU polyurethane foam insulation material (more heat-resistant and fire-resistant than general PU), insulation coefficient: less than 0.0212kcal/m?hr.

Box door: Fully open box door type 1, single leaf open type

Door airtight material: original imported high tension silicone sealing strip, temperature resistant to -90~280 ℃

Observation window: rectangular observation window, equipped with fluorescent lamps to keep the box bright, with automatic defrosting function, and electronic heating to ensure that there is no frost or condensation on the glass surface during any test

Test hole: 1 external cable test hole (diameter 50 mm), equipped with stainless steel hole cover and silicone plug

Sample rack: Equipped with 2 adjustable stainless steel sample racks

Casters: Equipped with 4 sets of adjustable and fixed movable wheels, convenient for equipment positioning and horizontal adjustment

Heating system

Heating system: Stainless steel flake shaped explosion-proof high-speed electric heating tube Double protection is provided by gas type super temperature and electromagnetic switch

Humidification system

Humidification method: steam humidification method: using electronic parallel bit micro humidification system; Rapid humidification, water and electricity saving, allowing test products to generate over 200% heat The humidification and dehumidification systems are completely independent and do not require additional drainage

Humidification protection: Electronic three-layer protection and mechanical protection switch are used for humidification Equipped with dual protection devices for overheating and overflow

Anti condensation design: The temperature and humidity synchronization slope can be set to avoid condensation on the test sample

Freezing system

Compressor: Original imported energy-saving high-efficiency compressor (Taikang, France)

Evaporator: Adopting a slope type copper fin evaporator, the heat transfer effect is faster than traditional aluminum fin evaporators, corrosion-resistant, non deliquescent, and can be used stably for a long time

Heat exchanger: Plate heat exchanger

Refrigerant: Environmentally friendly refrigerant

Cooling method: air-cooled

Supply air circulation system

Circulating fan: Adopting a multi blade centrifugal circulating fan with reinforced shaft and aluminum alloy made rotating blades that are resistant to high and low temperatures to achieve forced convection

Air supply method: Direct blowing vertical heat exchange arc circulation air supply method

control system

Algorithmic control: Adopting intelligent microcomputer PID SSR/SCR, it can automatically synchronize forward and reverse bidirectional output, and contains advanced slope control logic for stable and accurate control accuracy

Controller: AdoptingTEMI880 7Inch color touch screen human-machine interface,Has very high reliability and stability

Self correction: The controller is equipped with a linear self correction function to ensure its linear stability, thus achieving a temperature fluctuation of ± 0.3 ℃

Data setting: TEMI880 touch human-machine interface dialog box setting mode, simple and clear operation process, built-in program directory management, convenient for the establishment, modification, viewing or operation execution of various test names and program data

Program capacity: 120 sets of programs x 1200 segments, the required number of segments for each set of programs can be arbitrarily divided, and each set of programs can be freely connected to each other

Loop setting: Each set of running programs can execute 999 loops or an infinite number of loop repetitions And it can be further divided into 4 groups of segments to execute additional partial loops in the running program

Operation mode: There are three operation modes including fixed value, program, and connection, which can meet various temperature and humidity testing conditions

Control method: Adopting intelligent microcomputer PID SSR/SCR, which can automatically synchronize forward and reverse bidirectional output, with stable and accurate control accuracy, and contains advanced slope control logic to avoid advanced technology of sample condensation

Curve display: The set value and actual value curves are displayed in real-time. When the temperature, humidity, time, and cycle times data are set, the set curve of the relevant data can be obtained immediately. During operation, the actual operating curve drawing screen can also be obtained

Reservation activation: All testing conditions can be set with the function of reservation activation, and the execution time of the reservation can be set by year, month, day, or minute

Operation lock: During system operation, the start stop function button can be locked to prevent inconvenience caused by other personnel accidentally touching and shutting down the system

Power outage reset: equipped with power-off memory device and restart mode of the machine during power restoration?BREAK(Interruption)?COLD(Cold machine startup)?HOT(Hot engine start is available for selection

Automatic return to room temperature: When the testing conditions are completed, the end temperature (such as 25 ℃) can be set to avoid inconvenience when removing the tested object due to its original high or low temperature state

Backlight selection: The turning on time of LCD backlight can be set according to personal working hours, which is convenient for operation and monitoring during use, and can extend the service life of backlight

Safety check: Equipped with 8 fully functional system detection and perception devices, it can ensure the safe operation of the machine When sensing abnormal faults, immediately cut off the control power of the machine and automatically display the time of occurrence of the fault, abnormal items, and troubleshooting measures

Fault case: It can display historical data of recorded faults, such as statistical records of the causes and times of past faults

External independent protection: an electronic over temperature protection device independent of the main controller, which can set a temperature upper limit protection for the tested object to achieve multiple protection functions

Display switching: Chinese/English subtitles can be freely switched

Safety protection device

Safety protection device

1.Equipped with a non fuse protection switch NFB

2.Equipped with mechanical over temperature protection device

3.Water shortage protection device

4.Overload protection device for refrigeration compressor

5.Current overload protection device

6.Self inspection reveals 8 fault countermeasures displayed

7.Equipped with electronic over temperature protection device

8.Attached are cooling and ventilation devices for the computer room

9.Attached is a short-circuit fuse

Equipment usage conditions

Venue: The ground is flat, well ventilated, and free of flammable, explosive, corrosive gases and dust

There is no strong electromagnetic radiation source nearby

Indoor environmental conditions: Temperature: 5 ℃~35 ℃

Relative humidity:<85% RH

Air pressure: 86-106 kPa

Drainage outlet: There is a drainage floor drain near the equipment

Technical capabilities

Calibration laboratory:

CNASInternational mutual recognition third-party standard temperature and humidity calibration laboratory:

1.Send to CNAS laboratory for calibration:
Platinum resistance sensor
Thermocouple Sensor
Other related temperature gauges

2.Calibrate at the customer's factory