Brand：LUGONG
Model：ST-25LA
Name：Programmable constant temperature and humidity tester
Specifications
| Nominal Content Product | 25L |
| Temperature range | －20℃ ～ + 150℃ |
| Control accuracy | Temperature resolution: 0.01 ℃ Humidity resolution: 0.1% R.H Temperature deviation ： +/- 0.5 ℃ Humidity deviation ： +/- 2% R.H Temperature Uniformity: ≤ 2 ℃ Humidity Uniformity: +/- 3% R.H Temperature Fluctuation ： +/- 0.5 ℃ Humidity stability ： +/- 2% R.H. |
| Rising and cooling rate | Heating time: -40 ℃ → + 150 ℃ Average 3 ℃/min throughout the process Cooling time: 150 ℃ → -40 ℃ Average 1 ℃/min throughout the process |
| compressor | Nidec fully enclosed compressor |
| Refrigerant | Environmentally friendly refrigerant R404A/R23 |
| Refrigeration method | Mechanical primary refrigeration |
| blower | Centrifugal fan with forced circulation |
| evaporator | finned tube heat exchanger |
| Condensation method | Air-Cooled |
| condenser | Stainless steel brazed plate heat exchanger |
| Drying Filter | Absorb the residual moisture and acidic substances in the refrigerant of the refrigeration system, and filtrate the solid impurity particles and copper chips in the system to protect the normal operation of the expansion valve and capillary tubing, so as not to cause ice blockage and dirty blockage |
| Humidification system | Stainless steel humidifier |
| Heating system | Nickel chromium alloy stainless steel heater |
| water supply system | Front-mounted water supply tank, fully automatic water supply system |
| controller | Lugong controller |
| communication interface | 1. R232/485 communication 2. Can display Linear dispersion, data acquisition 3. Can be used as monitoring and remote control system |
| setting method | Chinese/English interface, touch input |
| operation mode | Program method/valuation method |
| setting range | Temperature range 5 ℃ |
| Display resolution | Temperature: 0.01 ℃; Time: 0.1 min; |
| Power-off memory function | The power failure recovery mode can be set as: hot start/cold start/stop |
| input | platinum resistance |
| storage function | Standard configuration, recording test data Linear dispersion, can upload and download data, can expand storage capacity |
| Software Operating Environment | IBM PC compatible machine, CPU above PII, memory above 128M, Simplified Chinese Windows2000 or Simplified Chinese WindowsXP operating system |
| Safety protection measures | Overall equipment overtemperature, fan overheating protection, overall equipment underphase/reverse phase, refrigeration system overload, refrigeration unit overpressure, overall equipment timing, leakage, operation instructions, automatic shutdown after fault alarm, etc |
| Chassis shell | Cold rolled steel plate |
| Chassis inner wall | SUS304 #stainless steel plate |
| thermal insulation material | 100Mm polyurethane rigid foam + 100mm high density fiberglass cotton |
| Inner box size | 380mm×300mm×220mm（W×H×D） |
| Dimension | 540mm×860mm×710mm（W×H×D） |
| Standard configuration | φ 50 Test Hole, Lighting, Double-decked Glass Viewing Window |
| current | 30A |
| power supply | Single phase, 220V |
Packing list
Host X1, instruction manual X1, warranty card X1, equipment certificate X1, packing list X1, specimen rack tray X2, specimen rack support track hook X8
After-sales instructions
Warranty days: 365 days
1.仪器设备非人为造成的产品质量问题，在质保期内厂家提供免费质保服务；
2.易损易耗配件不存在质保期，收到货发现产品质量问题，请在7天内申请退换货，逾期不候；
[Note] For after-sales services outside the Chinese mainland, if the instrument requires repair, the shipping and possible associated taxes shall be borne by the sender. Generation address of the manual: http://en.nbchao.com/p/50672/Specification.html , which is only used by users who purchase commodities from the NBCHAO.