The YLDS-250 drug stability test chamber provides controlled temperature and humidity for stability studies of drugs and pharmaceutical products. It offers an LCD program controller with 99 cycles and 30 segments, a dual internal water tank circulation system, and dual data logging via embedded printer and USB, with an international-brand compressor and eco-friendly R134a refrigerant. Steplessly adjustable LED illumination and an illuminance meter make it suitable for photostability testing as well.
| Model | YLDS-250 |
| Volume | 250 L |
| Temperature control range | 0–65 °C without light, 10–65 °C with light |
| Temperature resolution | 0.1 °C |
| Temperature fluctuation | ±0.5 °C |
| Temperature uniformity | 1.2 °C |
| Humidity control range | 35–95% RH (customisable 20–95% RH) |
| Humidity resolution | 0.1% RH |
| Humidity accuracy | Single-point fluctuation ≤ ±1% RH; deviation ≤ ±3% RH; multi-point uniformity ≤ 5% RH |
| Measuring points | 9 temperature and 3 humidity points |
| Illumination (YLDS) | LED cool white, vertical shelf illumination, 0–10000 lx stepless (multi-layer optional) |
| UV light (optional) | 320–400 nm, irradiation energy ≥ 200 W·h/m², irradiance 80–100 µW/cm² |
| Power | 1630 W |
| Power supply | 220 V / 50 Hz |
| Chamber size (W×D×H) | 500×430×1050 mm |
| External dimensions (W×D×H) | 570×570×1600 mm |
| Shelves | 4 |
Brand: Yalin – Shanghai Yalin Technology Co., Ltd.
All technical data are taken from the manufacturer's catalogue and may change without notice. Please request a quotation for price and lead time.
