Please read the following safety instructions and assembly chapter 2 before installation and keep
these instructions for future reference.
Intended use
The UDA 50 device is designed for the evaluation and display of Pt100 signals.
In the case of improper use or operation may result in personal injury or
damage to property.
Control of the device
The devices are checked before shipment and shipped in perfect condition. If any damage is visible
on the device, we recommend a close inspection of the transport packaging. In case of damage,
please inform the supplier immediately.
Installation
The UDA 50 device may only be installed by a specialist with appropriate qualifications, such as an
industrial electronics technician or a specialist with comparable training.
9. Safety instructions
Installation instructions
• There must be no magnetic or electric fields in the immediate vicinity of the device, e.g. due to
transformers, two-way radios or electrostatic discharges.
• The fuse protection of the supply should not exceed a value of
6A slow-blow
.
• Do not install inductive loads (relays, solenoid valves, etc.) near the device and suppress
them using RC spark quenching combinations or free-wheeling diodes.
• Lay input and output lines separately and not parallel to each other. Route outgoing and
return lines next to each other. If possible, use twisted-pair cables. This will give you the most
accurate measurement results.
• If high accuracy is required and the measuring signal is small, the sensor cables must be
shielded and twisted. As a general rule, they should not be laid in the immediate vicinity of
consumer supply lines. In the case of shielding, it must only be connected on one side to a
suitable equipotential bonding (usually blade ground).
• The device is not suitable for installation in hazardous areas.
• An electrical connection deviating from the connection diagram can lead to danger to persons
and destruction of the device.
• The terminal area of the devices is part of the service area. Electrostatic discharges must be
avoided here. Dangerous body currents can occur in the terminal area due to high voltages,
which is why increased caution is required.
• Galvanically isolated potentials within a system should be connected to a suitable point
(usually earth or system ground). This reduces the susceptibility to interference from radiated
energy and avoids dangerous potentials that can build up on long lines or be caused by faulty
wiring.
28
9. Safety instructions
