Loading ...
Loading ...
Loading ...
810
Users Manual
4-20
Before You Measure
Sensor orientation is critical to ensure repeatable data
and consistent diagnoses over time. Once you have
mounted the Sensor onto the machine to be tested and
created a Machine Setup, the Tester is ready to measure.
Caution
To prevent damage to the Tester, do not take
a measurement while connected to ac power
source.
Select Measurement Locations
The optimum measurement location is as close to the
machine bearings as possible. A solid metal surface
between the bearing and Sensor is ideal. The solid metal
casting effectively transmits the vibration signals emitted
by bearings. Do not put the Sensor on bearing caps, fan
housings, sheet metal shrouds, non-metallic materials,
and other metal-to-metal joints as they can significantly
distort the vibration signals.
Tips for measurement location:
• For consistent diagnoses over time, it is important to
measure with the same parameters. You must place
the triaxial Sensor at the exact same location on a
machine and with the same orientation.
• Do not take bearing measurements from a
foundation or fabricated base.
• Do not mistake seal locations for a bearing
measurement location on pumps.
• Attach the Sensor to a clean, flat, bare metal surface
if possible. Thick layers of paint, grease, oil, or other
matter reduce both the holding force of the magnet
and the high frequency response of the Sensor.
• Avoid mounting the Sensor on thin surface areas,
such as fan shrouds and cooling fins.
• The position of the cable connection on the Sensor
should be parallel or perpendicular to the drive shaft
whenever possible.
• For close-coupled machines where the motor is
directly bolted to the driven component, take all
measurements from the motor. If motor is <40 hp
(30 kW), take the measurement from the motor’s
driven end. If the motor is >40 hp (30 kW), take the
measurement from both the motor’s driven end and
free end.
Warning
To prevent personal injury, do not allow
Sensor location and mounting to supersede
safety. Always consider the best
combination of locations and mounting
techniques that personal safety will allow.
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
Loading ...
Loading ...
Loading ...