Safety Instructions - promesstec UDA 50-U Series User Manual

9. Safety instructions

9. Safety instructions
Please read the following safety instructions and assembly chapter 2 before installation and keep
these instructions for future reference.
Intended use
The UDA 50-...-U...is intended for the evaluation and display of sensor signals.
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 may only be installed by a specialist with appropriate qualifications, such as an
industrial electronics technician or a specialist with comparable training.
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 0.4A 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. To obtain 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 matter of principle, these should not be laid in the immediate vicinity
of supply lines of consumers. In the case of shielding, this should only be connected on one
side to a suitable equipotential bonding (usually the measuring earth).
• The device is not suitable for installation in potentially explosive atmospheres.
• 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 which can build up on long lines or can be caused by
faulty wiring.
In the event of improper use or operation personal injury and / or
damage to property may occur.
34