Gates 550C Manuel D'utilisation page 5

550C
GATES SONIC TENSION METER MANUAL
If the same drive used a 4-strand SPB PowerBand
belt instead of single belts enter "4" for the belt
width ("Width" key). The total belt tension for all
four belts is measured as the entire belt vibrates.
The Sonic Tension Meter will display the total static
belt tension for the PowerBand
within belt).
ENTER THE SPAN LENGTH
S = mm
Capacity available for input is from 0001 to 9999
mm. The span length represents the distance
between the contact points on adjacent pulleys/
sheaves. This distance may be measured directly,
or it may be calculated from the formula below.
Calculating the span length gives the best results.
Span length (mm) = CD
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Where:
CD = centre distance (mm)
D = large pulley diameter (mm)
d = small pulley diameter (mm)
INPUT DATA STORAGE AND RETRIEVAL
Weight, width and span values can be stored for up
to 40 different drive systems. Press the "Select" key
to toggle through the 40 storage registers or press
a number between 0 and 39, then enter values for
the belt constants. After this is completed, the belt
values can be recalled for a drive by simply pressing
the "Select" key and the number that corresponds to
the storage register.
MEASUREMENT
Press the "Measure" key and the green LED will
begin flashing. It will flash until a signal is received
by the sensor. Tap the belt span to make the belt
span vibrate. Hold the sensor approximately 1 cm
(0.4 inch) from the belt or closer as long as the belt
does not hit the sensor. The green light will turn off
after a signal is received and remain off for about
1.5 seconds during processing. The measured belt
tension is then displayed, the meter beeps three
times and the green LED turns back on and remains
on until another signal is received. If the belt tension
or frequency cannot be measured, the red LED
will turn on.
GATES.COM
™
belt (for all strands
™
- (D - d)
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TENSION DISPLAY
T = . kg or lb or N
The units of measured force can be switched
between kg=kilograms, lb=pounds and N=Newtons.
This can be accomplished as follows:
When the power is switched off, press the "0" and
"9" and "Power" key down at the same time. Units
can then be changed by pressing the "Select"
key until the desired unit appears. Press the
"Power" key again to return the meter to its normal
operating mode.
FREQUENCY DISPLAY
F = . Hz
Press the Hz key to view the frequency
measurement.
When the Hz key is pressed again, the measured
tension is re-displayed.
If the Hz key is pressed a third time, a double
indication is given in Newton and Hz.
MEASUREMENT ERRORS
If the belt tension or frequency cannot be measured
the red LED will turn on. If an error has been made
in the measurement, "ERROR" will be displayed.
Continue to retry the measurement until tension
is displayed. It is not necessary to press the
"Measure" key again. If the memory is not used,
the tension meter switches to "ERROR" after three
measurements. Switch the meter off and on again to
continue measuring.
If the double display is used (Newton – Hz), then the
unit for which a value cannot be displayed, will be
indicated with a dotted line.
FREQUENCY RANGE
A frequency filtering feature is available to focus
the meter frequency measurement response to a
narrower range. This can be useful in improving the
response of the meter, and in filtering out potentially
interfering background noise.
The standard selected frequency range is between
10–1000 Hz. The 3 frequency ranges LOW
(10-50Hz) or STANDARD (10-1000 Hz) or HIGH
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