Section 3 — Sensors
42
Manual Keyphasor Threshold settings
If a recording is tach-triggered but no pulses are detected, your
instrument will prompt you to select the appropriate Keyphasor
threshold settings. However, you can also access these settings
manually if required. To do this:
1. Use the KEY70258 or TTL70259 cable to connect the TACH input of
your 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 (if
available) and do NOT require phase data, tach triggering, or
time synchronous averaging.
• Triggered — If you want to capture phase and/or perform time
synchronous averaging. You can also select this option if you
are 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 but
are unsure which threshold to select. Press Off if you will NOT
be using any form of tachometer. Press for help.
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