Section 4 — Measurement Types and their Uses5015. To change the frequency of the strobe light to another peak, or tofine-tune the frequency, select another spectral peak on the graphusing the cursor keys — The strobe light frequency will change tomatch the new peak's frequency > Cycle through each spectral peakto identify the components generating vibrations at each frequency.NOTE: Clearing the cursors (ALT then ) will NOT disable thestrobe cursor. To cancel the cursor you must exit the spectrummeasurement screen.Read Speed of Connected StrobeTo read the speed of a connected strobe:1. Connect the LEMO-to-strobe cable's LEMO plug to your instrument'stachometer socket.2. Connect the black Read 3.5 mm to the strobe lamp's output socket— Ensure the Drive plug is disconnected and the strobe is set toPositive Signal Mode (POS) if required by the strobe model.3. Activate the strobe lamp and adjust the output rate as required.NOTE: The strobe frequency must be kept below 140 Hz, 8400CPM.4. Press Measure > Press Tach.5. Press Tach Type repeatedly to set the tachometer to Standard— The current frequency of the strobe light will display.