SIM GmbH - LC with cooling module. Nov 15, 2016 · To counteract these sample alterations, SIM developed the cooling module LC Cooler, which is connected as a fixed unit to the Aijiren II LC system. Sample temperature can be adjusted in a range from 5 to 40 °C. The sample tray (for 100 x 2 mL vials) is tempered with a Peltier element.