Mechanical installation
16
A4429-3.0
HBM: public
T40FH
no circumstances should the permissible limits specified for bending moments,
lateral and longitudinal forces be exceeded. Due to the T40FH torque flange's
high torsional stiffness, dynamic shaft train changes are kept to a minimum.
Important
Even if the unit is installed correctly, the zero point adjustment made at the fac
tory can shift by up to approx. 0.5% of the characteristic value. If this value is
exceeded, we advise you to check the mounting conditions. If the residual zero
drift when the unit is removed is greater than 1% of the characteristic value,
please send the transducer back to the Darmstadt factory for testing.
5.2
Conditions on site
The T40FH torque flange must be protected against coarse dirt particles, dust,
oil, solvents and moisture.
There is wide ranging compensation for the effects of temperature on the out
put and zero signals of the transducer (
see Chapter 15 “Specifications"
). If
there are no static temperature ratios, for example, because of the temperature
differences between the measuring body and the flange, the values given in the
specifications can be exceeded. In this case, ensure static temperature ratios
by cooling or heating, depending on the application. As an alternative, check if
thermal decoupling is possible, e.g. by means of heat radiating elements such
as multiple-disc couplings.
5.3
Mounting position
The torque flange can be mounted in any position.
With clockwise torque, the output frequency for Option 5, code DU2 is 60
…
90
kHz (Option 5, Code SU2: 10
…
15kHz; Option HU2: 240
…
360kHz). In con
junction with HBM amplifiers or when using the voltage output, a positive output
signal (0 V
…
+10 V) is present. In the case of the rotational speed measuring
system, an arrow is attached to the stator housing to clearly identify the direc
tion of rotation: If the measurement flange moves in the direction of the arrow,
connected HBM measuring amplifiers deliver a positive output signal.
