High and Low Temperature Humidity Environment Test Chamber
1. Criteria
Performance indicators meet the requirements of GB5170, 2, 3, 5, 6-95 “Basic parameters verification methods for environmental test equipment for electrical and electronic products low temperature, high temperature, constant humidity and alternating humidity and heat test equipment”.
Basic environmental test code for electrical and electronic products test A: low temperature test method GB 2423.1-89 (IEC68-2-1)
Basic environmental test code for electrical and electronic products test B: high temperature test method GB 2423.2-89 (IEC68-2-2)
Basic Environmental Test Rules for Electrical and Electronic Products Test Ca: Constant Humidity and Heat Test Method GB/T 2423.3-93 (IEC 68-2-3)
Basic Environmental Test Rules for Electrical and Electronic Products Test Da: Alternating Humidity-Heat Test Method GB/T423.4-93 (IEC68-2-30)
Control Methods and Characteristics
Balanced temperature control system (BTHC) controls SSR by P.I.D. so that the heating and humidification of the system is equal to the loss of humidity and heat, so it can be used stably for a long time.
2. Refrigeration system
2.1 Compressor: fully packed compressor imported from France
2.2 Refrigerant: environmental friendly refrigerant R404A
2.3 Condenser: fin type heat sink motor
2.4 Evaporator: fin type multi-stage automatic load capacity adjustment
2.5 Other accessories: desiccant, refrigerant flow window, repair valve
2.6 Expansion system: capacity controlled refrigeration system
3. Main technical parameters
| Temperature range | -40℃～150℃ |
| Temperature fluctuation | ±0.5℃ |
| Temperature deviation | ≤±2℃ |
| Heating time | about 4 degrees /min (no load non-linearity) |
| Cooling time | about 1 degrees /min (no load non-linearity) |
| Humidity range | 20% ~ 98% R.H |
| Humidity fluctuation | 3% R.H |
| Humidity deviation | ≤3% |
3. Control system
Original imported from Korea, full Chinese 7-inch LCD touch panel, interactive screen input data, temperature and humidity programmed at the same time, curve display, set value / display value curve. Supporting the U disk to directly export the temperature and humidity record data, displaying a variety of alarms respectively.It can display the fault through the screen, eliminate the fault, eliminate the misoperation when the fault occurs. Multi group PID control function, precision monitoring function, and displayed in data form on the screen.
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High And Low Temperature And Humidity Test Chamber 7 Inch LCD Touch Panel Images
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