General-machine-products 70046 Strand Tensionmeter Manuel d'utilisateur télécharger pdf (Page 16)

The calibrated dial reads 0 to 100. The majority of

recorded measurements will be within this range

and are readjust as the graduation appears on the

dial.

However, on high load measurements, it is possi-

ble for the needle to make one complete revolution

past zero. For these readings, it is necessary to add

100 to the graduation indicated by the needle.

Dial

Accurate strand tension measurement requires that

a section of strand be at least twenty feet long and

free from damage or corrosion. If cable is in place,

remove one ring or cable support or un-lash suffi-

ciently to obtain about two feet of unobstructed

strand.

Suspend the instrument on the strand by the hooks

located at each end of the tension bar with the han-

dle projecting downward.

With the unit in position, always check to make

certain that the dial indicator reads zero. If the dial

indicator does not read zero, loosen the slotted

screw located in the dial shroud. Rotate the dial

slightly until the dial indicator reads zero and re-

tighten the screw. As an alternate to "re-zeroing"

the unit each time the installed position of the Ten-

sionmeter is changed, place the unit in the position

in which it is to be used and note the number of

graduations above or below the zero mark. Once

the Tensionmeter is installed and set, add or sub-

tract those graduations to/from the dial reading be-

fore referring to the chart.

Using the

Tensionmeter

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General-machine-products 70046 Strand Tensionmeter Manuel d'utilisateur Page 16