User Instructions

Mechanical installation
T12CVS8 HBM: public 25
Comply with the minimum thread reach as per Tab. 8.1 .
The maximum thread reach must be selected so that the counter flange is not
touched. Otherwise significant measurement errors may result from a torque
shunt, or the transducer may be damaged.
Measurement
range
kN·m
Fastening screws
Prescribed tight-
ening moment
N·m
Minimum thread
reach
mm
Z
1)
Property class
15 to 50
M20
12.9
10.9
715
1,2 x d
(2)
1,2 x d2)
1)
DIN EN ISO 4762; black/oiled/µ
tot
= 0.125
2)
d = screw diameter in mm
Tab. 8.1 Fastening screws
Important
Dry screw connections can result in different and higher coefficients of friction
(see VDI 2230, for example). This means a change to the required tightening
torques.
The required tightening torques can also change if you use screws with a sur-
face or property class other than that specified in Tab. 8.1, as this affects the
coefficient of friction.
Notice