| Control & Operation | PLC and touch screen intelligent control system |
| Chamber Size (Optional) | 70L two chambers: inner size: WDH=500×350×400mm, outer size: WDH=1500×1970×1900mm,
150L two chambers: inner size: WDH=500×400×500mm,outer size: WDH=1500×1740×2300mm,
500L two chambers: inner size: WDH=1000×500×1000mm,outer size: WDH=2070×2160×3235mm,
100L three chambers: inner size: WDH=500×450×450mm,outer size: WDH=1520×1990×2050mm
150L three chambers: inner size: WDH=600×500×500mm,outer size: WDH=1620×2040×2100mm
200L three chambers: inner size: WDH=650×460×670mm,outer size: WDH=1620×1980×2140mm
(Or other dimensions can be customized) |
| Temperature Shock Range
(Optional) | A: -40～+150℃
B: -55～+150℃
C: -65～+150℃
(Or other temperature range can be customized) |
| Storage Temperature Range of Low Temperature Zone (optional) | A: -10～-50℃
B: -10～-65℃
C: -10～-75℃ |
| Cooling time of Low Temperature Zone | RT room temperature ~ -50 ° C, about 75 min
RT room temperature ~ -65 ° C, about 90 min
RT room temperature ~ -75 ° C, about 100 min |
| Storage Temperature Range of High Temperature Zone | +50℃～+180℃ |
| Heating time of High Temperature Zone | RT room temperature～＋180℃, about 50min |
| Temperature Fluctuation of Sample Zone | ±0.5℃ (at constant temperature) |
| Temperature Accuracy Range | Setting accuracy: ±0.1°C, indicating accuracy: ±0.1°C, resolution: ±0.1°C |
| Temperature Deviation | ±2℃(no load, at constant state) |
| Temperature Recovery Time | ≤5min (Can be customized) |
| Conversion Time | ≤8s (two chambers)/10s (three chambers) |
| High and Low Temperature Shock Time | ＞30min |
| Temperature Sensor | High precision Class A PT100 platinum resistance sensor |
| System Main Composition |
| Chamber Body | The inner chamber is made of SUS304# stainless steel plate, rounded shape, smooth, easy for clean |
| The outer chamber is made of A3 cold-rolled steel plate electrostatic double-sided spray or SUS304 stainless steel |
| Lead hole: inner and outer chambers are equipped with a threading hole with a rubber stopper |
| Insulation material: polyurethane foam |
| Observation window: double-layer explosion-proof tempered glass door |
| Heating System | Heating method: electric heating |
| High quality nickel-chromium wire electric heater, contactless control (SSR) |
| Cyclic Mode | Centrifugal fan / multi-blade fan blade |
| Cooling System | Cascade cooling, (using French Taikang full-closed compressor or German BITZER semi-closed compressor) |
| Non-fluorine environmentally friendly refrigerant R404A R23, in line with environmental regulations, safe and non-toxic. |
| Shell and tube condenser (water cooled). |
| High-performance fin type automatic load capacity adjustment, long-term use of low temperature and high humidity conditions without frosting. |
| Control System | Touch screen: Weinview programmable temperature and humidity controller (7 inch 16-bit true color touch screen) |
| Temperature control: PID self-tuning, using Class A PT100 platinum resistance sensor |
| Function: fixed value test and program test
Fixed value test: When the test environment requires only a single temperature and humidity, selecting this mode to set the required temperature, humidity and running time.
Program test: When the test environment requires multiple temperatures and humidity, select this mode to set the temperature, humidity and running time of each program. User can set the program running sequence. The program group is up to 100 groups. |
| Operation Mode | First high temperature→then low temperature; first low temperature→then high temperature; first high temperature→ then low temperature + room temperature mode; first low temperature→then high temperature + room temperature mode |
| Data Storage | With temperature and humidity curve interface, with standard R232 interface or U disk communication interface, the data can be downloaded, and the data changes and processes can be recorded. |
| Safety Protection | Power-off memory function, phase sequence protection, leakage protection, over-temperature protection, compressor overload protection, water shortage alarm, abnormal protection |
| Safety Protection Device | Heater air-burning protection switch, heater over current circuit breaker, circulating fan over current overload protection |
| Compressor high voltage protection switch, compressor overheat protection switch, compressor over current protection switch |
| Under-reverse phase circuit breaker, no-fuse switch, zero-crossing gate fluid power controller |
| Alarm Indication | When the above protection occurs, the equipment stops running, an audible and visual alarm is issued, and the fault location is displayed on the meter. |
