7
CORRECTION ABACUS
Example : Typical abacus delivered with an analogue HF 87/A and its sensor.
Calibration at 550 daN. Wire rope 9,2 mm (19 x 1 )
32
17
6
0
-8
-20
-37
-50
-40
-30
-20
-10
0
10
20
30
40
350
400
450
500
550
600
650
700
750
Displayed value in daN
E
r
r
o
r
i
n
d
a
N
CRANK TORQUE.
There is no particular torque recommended to tighten up the crank onto the wire rope.
It’s the wire rope angle that induce strain in the arms of the sensor. The crank ( or the level ) is only
used to induce the angle between the external support wheels and the stop block .
The HF 36/2 & /3 models are equipped with a rotary three level stop block, the right position is
indicated by the display according to the wire rope diameter.
