Meter Recalibration For Non-Standard Belts; Non-Standard Belts; Summary Of Features - Gates 507C Manuel D'utilisation

accurate measurements are needed, determine
the low and high values and average them
together. When the tension of 2 spans differs
more than 30% approx., adjust them almost
equally and measure again.
• Wind can adversely affect the ability of the
meter to make a reading by creating excessive
background noise. If measuring in a windy
location, shield the sensor from the wind or use
UK
a microphone windscreen.
• An optional inductive sensor should be utilised
for measuring tension of steel reinforced
synchronous belts and in noisy or windy
environments to produce optimal results. The
inductive sensor uses a magnetic field rather
than sound waves.
• If a specific process is used to set belt tension
in a particular application, and the meter is used
only to monitor the resulting belt tensions, the
frequency mode can be used rather than
displaying an absolute tension value. Belt span
frequencies for minimum and maximum tension
conditions can be measured so assemblers/
technicians can use the meter to verify that belt
installation tension is within an acceptable
range.
7. Meter recalibration
for non-standard
belts
Measuring the tension of special belts with extra
thick backings, alternate materials, etc., may yield
less than accurate results using unit weights for
standard belts. In these cases, a simple
calibration process may be used. The belting
can be placed on a fixture with a known span
length under various known tensions (hanging
weights can be used). By taking frequency
measurements at various tensions, span
frequency vs. tension data can be collected.
These data can then be used in a graphical format
or in equation form to convert measured span
vibration frequencies to accurate belt tensions.
Data of this type is specific to each application
and cannot be applied to drives with different
span lengths. Because the resulting data may
not be linear, it is best to measure the tension of
non-standard belts in terms of frequency rather
than deriving a new belt unit weight to measure
in terms of absolute tension.

8. Summary of features

• 20 memory registers for belt constants
• Max. frequency of 5000 Hz
• Measured accuracy: ± 1%
• Auto gain control
• Auto shut off
The meter will automatically shut off after 5
minutes of inactivity.
Power can be shut off manually by pressing
and holding the power button for 1-2
seconds.
• LCD screen backlight
• Battery power marker
• Number indication of memory register for belt
constants
• Double display possible (Newton and Hz)
• Includes flexible sensor – Product No.
7420-00204. (Cord sensor - Product No.
8