STATIMETER WIRE ROPE TENSION INDICATOR-OPERATING INSTRUCTIONS |
DEFLECTION SCALE FOR WRTI MODEL 'A' |
Deflection Angle-Degrees |
Travel of Centre Pulley mm |
Factor |
1.30 |
3.99 |
19.00 |
2.00 |
5.31 |
14.30 |
2.30 |
6.65 |
11.40 |
3.00 |
7.97 |
9.55 |
|
|
|
2.52 |
7.62 |
10 |
1.55 |
5.08 |
15 |
1.26 |
3.81 |
20 |
|
1 |
Raise centre pulley by turning handle anti-clockwise until the instrument can be placed on the rope. |
2 |
Lower centre pulley, turning handle clockwise, until all three pulleys are in contact with the rope. Ensure the rope is centrally located in the pulley grooves, deflection reads zero. |
3 |
Continue turning handwheel until deflection (factor) gauge needle reaches required factor (typically 10 and /or deflection 3 degrees) |
4 |
Read the value off the load gauge |
5 |
The rope tension is then calculated from: Tension = Load gauge reading x Factor gauge reading |
6 |
DO NOT allow either gauge needle to go beyond the scale end as it will damage the instrument |
7 |
To remove the instrument, turn the handle anti-clockwise until both gauges read zero and the pulleys are free of the rope. The instrument can then be removed. |
8 |
On open lay ropes ensure the deflection pad is in contact with a crest before taking readings. |