For large frozen stocks in laboratories and clinics, the Gram BioPlus RF930 is the biggest freezer in the range. With 930 litres gross and 702 litres net it holds a large quantity of biomaterials, medicines and samples at −25…−5 °C. The chamber is stainless steel behind a solid door.
Fan-assisted cooling distributes the cold evenly, and the defrost water is evaporated after automatic defrost. The electronic Gram controller has a voltage-free contact, E-sensor, offset and a digital thermometer. Audible and visual alarms are triggered by high or low temperature and an open door.
Energy use 6.12 kWh per 24 h, electrical power 830.5 W, noise level 49.5 dBA, refrigerant R290, ambient range +10…+43 °C. Overall size 780 × 1045 × 2025 mm and net weight 165 kg, with the exterior in white lacquered steel or stainless steel.