User Instructions

7
HBM: Business Document
Important
Even if the unit is installed correctly, the zero-point adjustment made at the
factory 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 offset when the unit is removed is greater than 1% of the sensitivity,
please send the transducer back to the Darmstadt factory for testing.
5.2 Conditions on site
The flexplate must be protected against coarse dirt particles, dust, oil,
solvents and humidity.
There is wide ranging compensation for the effects of temperature on the out-
put and zero signals of the flexplate (see “Specifications" section). 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 Installation orientation
The torque flange can be installed with any orientation.
With clockwise torque, when using the voltage output mode a positive output
signal (0 V…+10 V) or when using the frequency output mode an output
frequency of 10 kHz … 15 kHz is present on the output (corresponding zero to
nominal torque load).
5.4 Installation
Please first mount the rotor to its final position. The stator antenna is flexible
mountable and can be installed afterwards.