Computerized constant temperature and humidity chamber

Constant Temperature/Humidity Cabinet

Usage: Used for regulating temperature and humidity balance of various textiles, shoe materials, plastics and other samples under standard atmospheric conditions.

Model: HY-831D-150

Computerized constant temperature and humidity chamberTechnical indicators

Inner box size:50×60×50cm

Outer box size:102×107×170cm

Temperature range: 0 ℃ to+150 ℃

Temperature fluctuation: ≤ ±0.3℃

Temperature uniformity: ≤ 1℃

Temperature deviation: ≤ ±2℃

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

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

≤± 5% R.H. (when<75% R.H.)

Meets the standard: This device meets

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

GB/T5170.5-2008 Acceptance 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/mhr.

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

Air supplycirculatory 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: Adopting TEMI880 7-inch color touch screen human-machine interface, it 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

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

Display switching: Chinese/English subtitles can be freely switched

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. Attach 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: 86～106kpa.

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

Technical Capability

Calibration laboratory:

CNAS International Mutual Recognition Third Party Standard Temperature and Humidity Calibration Laboratory:

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

2. Calibrate at the customer's factory