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Method III: 'Kriket' Deflection Devices
| The ‘Kriket’ devices ship only with a general instruction sheet. Please
save or print this instruction sheet since it provides information specific to polyurethane belts.
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The 'Kriket' devices are based on the deflection principle and provide an easy, economical method to directly measure belt strand
tension. However, since the gauge calibration is dependent on belt construction, the accuracy of the tension readings is not very
high.
The 'Kriket' device is available in three configurations:
| Name |
Tension Range (lbs.)
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Belt Width (inches)
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SAP Material #
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| Kriket I
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30-150 lbs.
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up to 7/8" wide
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20066389
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| Kriket II
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100-300 lbs.
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up to 2" wide
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20066480
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| Kriket III
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300-700 lbs.
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up to 3" wide
|
20049087
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Procedure
| 1. |
Ensure that the blue indicator arm is pressed down.
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| 2. |
Place the 'Kriket' gauge in the center of the belt span, such that it is aligned longitudinally with the belt length.
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| 3. |
Place a finger on the blue pressure pad and depress this pressure pad.
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| 4. |
Keep pressing the blue pressure pad until you feel and hear a distinct 'click'. When this 'click' sound is heard, do not press
any further.
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| 5. |
Remove the gauge and read the belt tension by observing the point where the top side of the blue indicator arm crosses the
numbered scale on the gauge body.
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Notes:
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| a. |
Care must be taken to ensure that the gauge is not 'rocked' when pressing down on the blue pressure pad. The strap above the
pressure bar is provided to attach snugly over the finger and prevent any 'rocking' motion.
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| b. |
The 'Kriket' device is available in three configurations as shown in the table above. Which of these devices is used depends on
the belt width and the tension range. A good rule of thumb is to ensure that the tension reading falls in the mid-range of the
scale. If the tension reading is on the extremities of the scale, use the next higher or lower device.
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| c. |
Due to the fact that this device requires some amount of practice and operator skill, the accuracy and repeatability of the tension
readings are not high.
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Kriekt I, II and III Deflection Gauges
Return to Belt Tensioning...
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