
AED
SAFETY INSTRUCTIONS
4
Qualified personnel
Qualified persons are individuals entrusted with the installation, fitting, startup and oper
ation of the product and with the relevant qualifications for their work.
This includes people who meet at least one of the three following criteria:
SThey have knowledge of the safety equipment and procedures of measurement and
automation systems, and are familiar with them as project personnel.
SThey are operating personnel of measurement or automation systems and have been
instructed on how to handle the machinery. They are familiar with the operation of the
equipment and technologies described in this document.
SAs a commissioning or service engineer, they have successfully completed training on
the repair of automation plants. Moreover, they are authorized to start up, ground and
label circuits and equipment in accordance with safety engineering standards.
Working safely
SThe device must not be directly connected to the power supply system. The supply
voltage must not exceed 30VDC.
SError messages should only be acknowledged once the cause of the error has been
eradicated and there is no further danger.
SAutomation equipment and devices must be designed to ensure adequate protection
or locking against inadvertent actuation (e.g. access control, password protection,
etc.).
SFor devices operating in networks, safety precautions must be taken in terms of both
hardware and software, so that an open circuit or other interruptions to signal trans
mission do not result in undefined states or loss of data in the automation device.
SFollowing work on settings or password-protected activities, make sure that any con
trols that may be connected remain in a safe condition until the switching behavior of
the device has been tested.
Additional safety precautions
Additional safety precautions must be taken in plants where malfunctions could cause
major damage, loss of data or even personal injury. You can find details e.g. in the acci
dent prevention regulations applicable to your particular application.
The performance and scope of supply of the device cover only a small proportion of test
and measuring equipment. Before starting up the device in a plant, first perform a project
planning and risk analysis, taking into account all the safety aspects of measurement
and automation engineering, to minimize residual risk. This particularly concerns the
protection of personnel and equipment. In the event of a fault, appropriate precautions
must produce safe operating conditions.