Endress+Hauser Deltatop DP71B, Руководство по эксплуатации

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Deltatop DP71B, DP72B, DP73B Safety instructions
Hauser 5
1.4 Notes on safety conventions and icons
In order to highlight safety-relevant or alternative operating procedures in the manual, the following
conventions have been used, each indicated by a corresponding symbol in the margin.
Safety conventions
#
Warning!
A warning highlights actions or procedures which, if not performed correctly, will lead to personal
injury, a safety hazard or the destruction of the device.
"
Caution!
Caution highlights actions or procedures which, if not performed correctly, may lead to personal
injury or the incorrect operation of the device.
!
Note!
A note highlights actions or procedures which, if not performed correctly, can have an indirect effect
on operation or trigger an unexpected response on the part of the device.
Explosion protection
0
Device certified for use in hazardous locations
If the device has this symbol embossed on its nameplate it can be installed in a hazardous location
-
Hazardous location
Symbol used in drawings to indicate hazardous locations. Devices located in and wiring entering
areas designated as “hazardous locations” must comply with the stated type of protection.
.
Safe area (non-hazardous location)
Symbol used in drawings to indicate, if necessary, non-hazardous locations. Devices located in safe
areas still require a certificate if their outputs run into hazardous locations.
Electrical symbols
%
Direct voltage
A terminal to which or from which a direct current or voltage may be applied or supplied.
&
Alternating voltage
A terminal to which or from which an alternating (sine-wave) current or voltage may be applied or
supplied.
)
Grounded terminal
A grounded terminal, which as far as the operator is concerned, is already grounded by means of a
grounding system.
*
Protective grounding (earth) terminal
A terminal which must be connected to ground prior to making any other connection to the
equipment.
+
Equipotential connection (earth bonding)
A connection made to the plant grounding system. This may be an equipotential line or neutral star
bonding depending on national or company codes of practice.
Temperature resistance of the connection cables
States that the connection cables must be able to withstand a temperature of at least 185°F (85 °C).
t >85°C