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Model | BT-280 | BT-2150 | BT-2225 | BT-2408 | BT-2800 | |
Inner Size W×H×D(cm) | 40×50×40 | 50×60×50 | 50×75×60 | 60×85×80 | 100×100×80 | |
Outside Size W×H×D(cm) | 93×155×95 | 100×148×106 | 117×166×91 | 140×176×101 | 170×186×111 | |
Volume (V) | 80 L | 150L | 225L | 408L | 800L | |
Temp and Hum Range | A:-20°C~150°C B: -40°C~150°C C: -60°C~150°C D: -70°C~150°C RH20%-98% | |||||
Function | Fluctuation | ±0.5°C ±2.5%RH | ||||
Deviation | ±0.5°C-±2°C ±3%RH(>75%RH); ±5%RH(≤75%RH) | |||||
Controller Analytical Accuracy | ±0.3°C ±2.5%RH | |||||
Wind Cycling Way | Centrifugal fan-broadband type forced air circulation | |||||
Refrigeration Way | Single stage compression refrigeration | |||||
Refrigerator | French Tecumseh | |||||
Refrigerants | R4O4A USA DuPont environmental protection refrigerant(R23+R404) | |||||
Condensing Way | Air-cooled or water-cooled | |||||
Water Supplying Way | Automatic cycling water supply | |||||
Safety device | Non- fuse-switch(compressor overload, refrigerant high low voltage, over-humidity and temperature protection, Protection switch,fuse stoppage warning system |
Control System | |
Screen display function | 1. Temperature and humidity setting (SV) actual (PV) value is
displayed directly 2. Can display the execution program number, segment, remaining time and cycle number, running time display 3. Program editing and graphic curve display 4. With a separate program editing screen, each page can enter 4 segments of temperature and humidity, time 5. Fixed point or program action status display 6. Language conversion can switch Chinese / English 7.7 inch true color display screen |
Program capacity and control function | 1. Program quantity that can be used: maximum 120 groups, 1 program
can be composed of 1 ~ 99 stages, capacity: 1200 stages 2. Commands can be executed repeatedly: each command can be up to 999 times, the temperature and humidity slope can be set by the time axis; 3. The program can be set to connect to use; the production of the program is easy to use conversational operation; with editing, Clear, insert and other functions; group time signal output control (can control the ON / OFF action of the test object) 4. With 9 groups of PID parameter settings 5. With skipping and holding functions during program execution 6. With power-off program memory, it can automatically start and resume the program after power is restored 7. Data acquisition, export, view graphics function 8. PID automatic calculation and FUZZY control function 9. The screen can be adjusted for backlight, and the backlight time can be set 10. On-screen display protection function can be set to close regularly or manually 11. Program copy, COPY, connection function, edit experiment title and other program editing functions 12. With appointment start and shutdown function 13. With date and time adjustment function 14. Button and screen lock (LOCK) function 15. Standby picture viewing function and exception handling picture explanation function |
Communication interface | 1.R232 / 485 communication 2. Can display curves and obtain data 3. Can be used as a monitoring and remote control system |
Setting method | Chinese / English interface, touch input |
Operation mode | Program method / fixed value method |
Predetermined area | Maximum temperature range: 5 ºC |
Display resolution | Temperature:0.01ºC;Time:0.1min |
Power off memory function | Can set power failure recovery mode as: hot start / cold start / stop |
Input | Platinum resistance |
Storage function | Standard configuration 2G SD card to record test data curve, can upload and download data, expand storage capacity |