The invention relates to an arrangement in connection with equipment used in
patient care, the arrangement comprising a controllable device (2a,
2b), a measuring device (5a, 5b) adapted
to measure a measuring signal dependent on the controllable parameter, a measuring
point of the measuring signal, a transmission link (21, 22) between the
measuring point of the measuring signal and the measuring device, which transmission
link requires a separate connection, whereby the measuring device (5a,
5b) is adapted to convert the measuring signal into measuring value
which correlates with the operation of the controllable device, and the arrangement
further comprising a user interface (20) and a control unit (7a,
7b) adapted to control the controllable device on the basis of the measuring
value and the set values. To minimize damages, the arrangement is adapted to compare
the measuring value with the reference value of the environment and the control
unit (7a, 7b) is adapted to disconnect the control
of the controllable device (2a, 2b) based on the measuring
value when the measuring value obtains a reference value.
