English to Spanish Medical Medical: Pharmaceuticals bottom sheet

Buenos días,

Espero que puedan ayudarme con un término al español: “bottom sheet”, relacionado con una máquina centrífuga multipropósito para laboratorio. Muchas gracias:

“The bench top centrifuges are microprocessor controlled units. The microprocessor controlled PCB is located on the bottom sheet and display PCB is located on the front panel. The centrifuges are equipped with the locking system which prevents the lid from opening when the rotor is spinning.”

GVL