2518. ABBREVIATIONSPEM4 Touch screen for Ethernet communicationSPU3 Signal Processing Unit, part of the PEM4 efficiency monitoring systemCPU Central Processing UnitTFT Thin Film Transistor - Liquid Crystal DisplayPCAP Projected CapacitiveLED Light Emitting DiodeLCD Liquid Crystal DisplayPT100 Temperature sensor type PT100PT2 Type of flowmeter with Hall sensor and PT100 output19. SPARE PARTSA recommended spare part list is not applicable.