Section 3 — Sensors42Manual Keyphasor Threshold settingsIf a recording is tach-triggered but no pulses are detected, yourinstrument will prompt you to select the appropriate Keyphasorthreshold settings. However, you can also access these settingsmanually if required. To do this:1. Use the KEY70258 or TTL70259 cable to connect the TACH input ofyour instrument to the buffered output of the Keyphasor proximitor.2. Press or Measure.3. Select the required measurement type > Press .4. Press Tach.5. Select the required threshold.6. Press Tach to select ONE of these options:• RPM only — If you only want to record the machine speed (ifavailable) and do NOT require phase data, tach triggering, ortime synchronous averaging.• Triggered — If you want to capture phase and/or perform timesynchronous averaging. You can also select this option if youare recording an Orbit plot and require revolution markers.7. Use the keys provided to select the required threshold.TIP: Use the default 13V setting if you are using a Keyphasor butare unsure which threshold to select. Press Off if you will NOTbe using any form of tachometer. Press for help.
