How do I change measurement modes on my UNI-T UT372D RPM meter?

[VonStephanie]

Switching between contact and non-contact measurement modes on your UNI-T UT372D RPM meter is straightforward. Here's how:

1. Contact Measurement Mode:

   • Attach the shaft contact (cone or internal cone) to the mechanical adapter's shaft.
   • Power on the tachometer.
   • Briefly press the MODE button to choose contact mode.
   • Use the UNIT button to select your desired unit, either RPM or Hz.
   • Ensure the shaft contact firmly touches the object you're measuring.
   • Hold down the Measure button to start taking measurements.

2. Non-Contact Measurement Mode:

   • Unscrew the quick release screws on both sides of the mechanical adapter and remove the adapter from the device.
   • For RPM/Hz Measurement:
     • Cut a 10mm x 10mm piece of reflective tape and stick it onto the object you're measuring.
     • Position the tachometer steadily, keeping a distance of 50mm to 500mm between the laser aperture and the reflective tape on the object.
     • Press the MODE button briefly to select non-contact measurement mode.
     • Use the UNIT button to select RPM or Hz.
     • Press and hold the Measure button to activate the laser and aim it at the reflective tape.
   • For REV Measurement:
     • Position the tachometer steadily, maintaining a distance of 50mm to 500mm between the laser aperture and the object.
     • Press the MODE button briefly to select non-contact mode.
     • Use the UNIT button to choose REV.
     • Press and hold the Measure button to turn on the laser and direct it towards the object you want to count.

Always consult the safety guidelines in your UNI-T UT372D manual and confirm the setup for precise readings.