Endress+Hauser Deltabar PMD75B User Manual

Deltabar PMD75B PROFINET with Ethernet-APL Technical data
Endress+Hauser 81
15.2 Environment
Ambient temperature
range
The following values apply up to a process temperature of +85 °C (+185 °F). At higher
process temperatures, the permitted ambient temperature is reduced.
• Without segment display or graphic display:
• Standard: –40 to +85 °C (–40 to +185 °F)
• Optionally available: –50 to +85 °C (–58 to +185 °F) with restricted operating life and
performance
• Optionally available: –54 to +85 °C (–65 to +185 °F); below –50 °C (–58 °F): devices
can be permanently damaged
• With segment display or graphic display: –40 to +85 °C (–40 to +185 °F) with limitations
in optical properties such as display speed and contrast. Can be used without limitations
up to –20 to +60 °C (–4 to +140 °F)
Segment display: up to –50 to +85 °C (–58 to +185 °F) with restricted operating life and
performance
• Separate housing: –20 to +60 °C (–4 to +140 °F)
Devices with inert oil: minimum process and ambient temperature –20 °C (–4 °F)
Ambient temperature T
a
depending on the process temperature T
p
The process connection must be fully insulated for ambient temperatures below
–40 °C (–40 °F).
T
P
T
a
T
p
T
a
+185
+185
−22
−40
[°C]
[°F]
[°C][°F]
− −
−
50 40
40
−
58
+85
+85
−40
−30
1
A0043573
1 Insulation material
Hazardous area
• For devices for use in hazardous areas, see the Safety Instructions, Installation Drawing
or Control Drawing
• Devices that have the most common explosion protection certificates (e.g. ATEX/ IEC Ex,
etc.) can be used in explosive atmospheres with an ambient temperature of
–54 to +85 °C (–65 to +185 °F) (optionally available). The functionality of the explosion
protection Ex ia is guaranteed for ambient temperatures to –50 °C (–58 °F) (optionally
available).
At temperatures ≤ –50 °C (–58 °F), explosion protection is guaranteed by the housing in
the case of flameproof enclosure (Ex d) type of protection. The functionality of the
transmitter cannot be fully guaranteed. The Ex ia capability can no longer be
guaranteed.

Endress+Hauser Deltabar PMD75B Specifications

General

Brand	Endress+Hauser
Model	Deltabar PMD75B
Category	Measuring Instruments
Language	English