14
When work is carried out on the instrument terminals and connecting cables,
there is a risk of live components being touched inadvertently. The working vol-
tage may present a hazard to health or may even be life-threatening.
If the above instructions are followed, and the precautions specified in
[Section
1.2 Safety instructions]
, are taken, the risk of damaging equipment and assets or
endangering life and limb can be significantly reduced.
CAUTION!
- The cables leading to the instrument must be permanently connected. It is not
permitted for these to have plug-in connections.
- An external disconnecting device, such as an isolator or circuit breaker, must
be fitted in the power supply line to the instrument. This must be located in the
vicinity of the PQM 1588 and must be able to isolate all cables connected to its
power supply terminals. It must be suitable for this application, comply with the
requirements of IEC 60947-1 and IEC 60947-3, and be appropriately labelled as
a disconnecting device for the PQM 1588.
5.3 Relays
DANGER!
To avoid accidents, the following must be observed:
- The safety instructions in
[Section 5.1 Elektrical connections]
.
- Connection of the output relays as specified in this manual
- The maximum operating voltage across the relay contacts, as specified in
[Section 2 Technical Data]
.
When work is carried out on the instrument terminals and connecting cables,
there is a risk of live components being touched inadvertently. The working vol-
tage may present a hazard to health or may even be life-threatening.
If the above instructions are followed, and the precautions specified in
[Section
1.2 Safety instructions]
are taken, the risk of damaging equipment and assets or
endangering life and limb can be significantly reduced.
CAUTION!
To ensure safe and reliable operation, the following must be observed:
- Each of the output relay connections
OUT 1
to
OUT 5
must not carry currents
of more than 2 A AC, as specified in
[Section 2 Technical Data]
.
If this point is observed, the risk of fire and possible damage to the instrument
will be avoided.
DANGER!
To avoid accidents, the following must be observed:
- The safety instructions in
[Section 5.1 Elektrical connections]
.
- Connection of the alarm relays as specified in this manual
- The maximum operating voltage across the relay contacts, as specified in
[Sec-
tion 2 Technical Data]
.
When work is carried out on the instrument terminals and connecting cables,
there is a risk of live components being touched inadvertently. The working vol-
tage may present a hazard to health or may even be life-threatening.
