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Phone
13713390599
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Address
No.1 Dahua Road, Tianliao Industrial Zone, Shipai Town, Dongguan City, Guangdong Province
Dongguan Dahua Testing Equipment Co., Ltd
13713390599
No.1 Dahua Road, Tianliao Industrial Zone, Shipai Town, Dongguan City, Guangdong Province
The purpose of the constant temperature and humidity testing chamber is:
The programmable constant temperature and humidity test chamber provides testing environments and conditions for heat resistance, cold resistance, high temperature resistance, and moisture resistance in various stages of product development, production, and inspection. It can accurately simulate complex natural environments such as low temperature, high temperature, high temperature and high humidity, low temperature and low humidity, and alternating high and low temperature and humidity. It is suitable for product reliability testing in various industries such as plastics, electronics, electrical appliances, food, clothing, vehicles, metals, chemistry, building materials, scientific research institutions, and universities.
The main features of the constant temperature and humidity testing chamber are:
1. Perfect styling design: curved shape and surface spray treatment, high-quality appearance, and the use of flat non reactive handles. The programmable constant temperature and humidity machine is easy to operate, safe and reliable
2. Bright and wide field of view large observation window: using three-layer vacuum coating window and Philips energy-saving fluorescent lamp, no need for wiper defogging, maintaining clear observation effect in the programmable constant temperature and humidity chamber, and allowing observation of the condition of the test sample in the programmable constant temperature and humidity test chamber at any time.
3. Separation of humidification system pipeline and control circuit: The humidification system pipeline in the constant temperature and humidity machine is separated from the power supply, controller, and circuit board, which can avoid the programmable constant temperature and humidity test box from affecting the circuit due to pipeline leakage and improve safety.
4. Advanced and reliable refrigeration and control system: Original imported European and American fully enclosed compressors, imported environmentally friendly refrigerants, and world-renowned brand refrigeration components make the operation of the programmable constant temperature and humidity test chamber simple and easy to learn.
Execution standard for constant temperature and humidity testing chamber:GB-2423.1-89 (IEC68-2-1) Test A: Low temperature test method.
GB-2423.2-89 (IEC68-2-2) Test B: High temperature test method.
GBJ150.3 (MIL-STD-810D) High temperature test method.
GJB150.4 (MIL-STD-810D) Low temperature test method.
GB2423.3-93 (IEC68-2-3) Test Ca: Constant Damp Heat Test Method.
GB2423.4-93 (IEC68-2-30) Test Db: Alternating Damp Heat Test Method.
GJB150.9-93 (MIL-STD-810D) Wet Heat Test Method.
GB/T2423.1-2008 Low temperature test chamber test method.
GB/T2423.2-2008 High temperature test chamber test method.
GB/T2423.3-2006 Damp Heat Test Chamber Test Method.
GB/T2423.4-2008 Alternating Damp Heat Test Method.
GB/T2423.22-2002 Temperature change test method.
| Conventional model | DH-HP80A | DH-HP150A | DH-HP225A | DH-HP408A | DH-HP800A | DH-HP1000A |
| Internal volume (L) | 80 | 150 | 225 | 408 | 800 | 1000 |
| Internal dimensions (cm) | 40*50*40 | 50*60*50cm | 50*75*60 | 60*85*80cm | 100*100*80 | 100*100*100 |
| External dimensions (cm) | 95*135*95 | 105*145*105 | 95*155*105 | 105*165*125 | 145*180*130 | 145*180*150 |
| Weight (Kg) | 200 | 230 | 250 | 300 | 400 | 460 |
| performance | Temperature and humidity regulation method | Balanced Temperature and Humidity Control Method (BTHC) PID Intelligent Adjustment |
temperature range |
0,-20,-40,-60,-70℃~150 ℃ |
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| humidity range | 20%-98%R.H | |
| Temperature Uniformity | ±1℃ | |
| temperature fluctuation | ±0.5℃ | |
| Humidity uniformity | ±2%R.H | |
| humidity fluctuation | ±1%R.H | |
| heating rate | ≥ 3°C/min | |
| 降温速率 | ≥1°C/min | |
| Material Science | Internal material | SUS304 mirror 1.5mm stainless steel plate |
| housing material | SUS304 brushed 1.2mm stainless steel plate or rust resistant cold-rolled steel plate (spray coating) | |
| insulating material | Special ultra-fine glass wool+polyurethane foam for programmable constant temperature and humidity box | |
| regulator | Cooling method | Mechanical binary refrigeration method |
| refrigerator | Fully enclosed (French Taikang or German Gulun) compressor | |
| refrigerant | R23A/ R404A | |
| Condensation method | Air cooled or water-cooled | |
| heater | Nickel chromium alloy stainless steel tube heater | |
| humidifier | Stainless steel humidifying cylinder for touch screen constant temperature and humidity experimental machine | |
| blower | centrifugal fan | |
| Airflow mode | Broadband forced airflow circulation (top out and bottom in) | |
| controller | operating interface | Touch screen type constant temperature and humidity testing machine dedicated LCD touch display screen, switching between Chinese and English |
| operation | Constant value operation, program operation | |
| Program memory capacity | 100 programmable sets, with a maximum of 999 segments per program | |
| Set indicator range | Temperature: -100 ℃+300 ℃ Humidity: 99.9% R.H | |
| resolution | Temperature: 0.01 ℃ Humidity: 0.1% R.H | |
| input | PT100 or T-type thermocouple | |
| Control method | PID control | |
| communication function | Programmable constant temperature and humidity machine dedicated RS-232 interface (delivery CD) | |
| Print function | Yokogawa 6-point Recorder from Japan (optional) | |
| Supplementary functions | Upper and lower limit alarm, self diagnosis, alarm display (cause of malfunction), timing device (automatic startup and shutdown) | |
| 供 水 | Water supply method | Circulating water supply |
| Water supply tank | Built in handheld (30kg capacity) | |
| water quality | The resistivity is greater than 500 Ω M | |
| Standard configuration: 1 observation window (double-layer insulated tempered glass); 60mm of test holes; Sample rack 2 layers; 1 fluorescent lamp inside the box; 1 water supply tank; |
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| Safety devices: leakage protector for power supply, anti dry burning device, water system protection device, extreme high and low temperature protection, temperature deviation alarm, Overpressure, overload, water shortage, phase loss protection |
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