A sampler cap includes a sampler connector, an analyzer connector and a liquid impermeable closure member, which may be a membrane or a filter. The system further including a cable-length calibration method, an automatic material identification and calibration method, a material insensitive method, an inductive ratio method and advanced sensing characteristics. The object data type can be used to create an instance of an external object and store the object in a cell of a spreadsheet. Additionally, a sensor is mounted on the loading board.