R ( + ) =右邊旋轉 : 緩慢向右旋轉分析器(在慢速狀態下)
L ( - ) =左邊旋轉 : 緩慢向左旋轉分析器(在慢速狀態下)
temp=變動開關 : 同時按下變動開關與(+)開關或(-)開關,將會產生較快的旋轉(在變動狀態下)
*When this switch is pressed for 2 seconds or more, the temperature of the sample chamber is indicated on the display panel (until the switch is released from pressing).