Model | LTS-202 | LTS-203 | LTS-204 | LTS-206 | LTS-208 |
| LTS-202W | LTS-203W | LTS-204W | LTS-206W | LTS-208W |
Temperature range | -20℃~35℃ |
Temperature control accuracy | ±0.1℃ at -20℃~0℃ |
Flow control | 7~25L/min | 12~45L/min |
| The flow control adopts frequency converter adjustment, and the speed is automatically adjusted according to the feedback signal of the flow sensor. The maximum pressure of the circulating pump is 5bar. |
Internal circulating fluid volume | 4L | 5L | 6L | 8L | 10L |
Expansion tank volume | 10L | 10L | 15L | 15L | 20L |
System pressure display | The pressure of the refrigeration system is realized by a pointer pressure gauge (high pressure, low pressure) |
| The pressure acquisition outlet position of the circulatory system is detected by a pressure sensor and displayed on the touch screen |
Controller | Siemens PLC, fuzzy PID control algorithm, with cascade control algorithm |
Temperature control | Heat transfer medium outlet temperature control mode |
| External temperature sensor: (PT100 or 4~20mA or communication setting) control mode (cascade control) |
Letter of agreement | Ethernet interface TCP/IP protocol |
RS485 interface modbus RTU protocol |
Internal temperature feedback of equipment | Equipment heat transfer medium outlet temperature, medium inlet temperature, refrigeration system condensation temperature, ambient temperature, compressor suction temperature, cooling water temperature (available for water-cooled equipment) |
Closed circulation system | The whole system is a fully enclosed system, low temperature does not absorb moisture in the air, does not volatilize the heat transfer medium, and the low temperature automatically supplements the heat transfer medium into the circulation system |
Compressor | Emerson Copeland/Danfoss Scroll Flexible Compressor |
Circulating pump | German brand magnetic circulation pump |
Evaporator | Adopt Danfoss/Gaoli plate heat exchanger |
Condenser | Micro channel condenser (air-cooled) |
Plate heat exchanger (water-cooled), special attention: clean factory water is required |
Refrigeration accessories | Danfoss/Emerson accessories (filter drier, oil separator, high and low pressure protector, expansion valve) |
Operation panel | Wuxi Guanya customized 7-inch color touch screen, temperature curve display\EXCEL data export |
Security | With self-diagnosis function; phase sequence open-phase protector, refrigerating machine overload protection; high-pressure pressure switch, overload relay, thermal protection device and other security functions. |
In and out interface size | G1/2 | G1/2 | G3/4 | G3/4 | G3/4 |