Technical data Proline Prowirl 73
84 Endress+Hauser
Influence of ambient
temperature
Current output (additional error, in reference to the span of 16 mA)
• Zero point (4 mA): average Tk: 0.05%/10
K
, max. 0.6% over the entire temperature range of
–40 to +80 °C (–40 to +176 °F)
• Span (20 mA): average Tk: 0.05%/10
K
, max. 0.6% over the entire temperature range of
–40 to +80 °C (–40 to +176 °F)
Digital outputs (pulse output, frequency output, PFM, HART)
Due to the digital measuring signal (vortex pulse) and further digital processing, there is no
interface-related error from changing ambient temperature.
10.1.7 Operating conditions: installation
Installation instructions ä 17
Inlet and outlet run ä 20
10.1.8 Operating conditions: environment
Ambient temperature range Compact version
• Standard: –40 to +70 °C (–40 to +158 °F)
• EEx-d/XP version: –40 to +60 °C (–40 to +140 °F)
• ATEX II 1/2 GD version/dust ignition-proof: –20 to +55 °C (–4 to +131 °F)
• Display can be read between –20 to +70 °C (–4 to +158 °F)
Remote version sensor
• Standard: –40 to +85 °C (–40 to +185 °F)
• ATEX II 1/2 GD version/dust ignition-proof: –20 to +55 °C (–4 to +131 °F)
Remote version transmitter
• Standard: –40 to +80 °C (–40 to +176 °F)
• EEx-d/XP version: –40 to +60 °C (–40 to +140 °F)
• ATEX II 1/2 GD version/dust ignition-proof: –20 to +55 °C (–4 to +131 °F)
• Display can be read between –20 to +70 °C (–4 to +158 °F)
• Version up to –50 °C (–58 °F) on request
To protect the measuring device from direct sunlight when installing the unit outdoors, a protective
cover (order number 543199-0001) is recommended. This applies in particular to warmer climates
with high ambient temperatures.
Storage temperature Standard: –40 to +80 °C (–40 to +176 °F)
ATEX II 1/2 GD version/dust ignition-proof: –20 to +55 °C (–4 to +131 °F)
Version up to –52 °C (–62 °F) on request
Degree of protection IP 67 (NEMA 4X) in accordance with EN 60529
Vibration resistance Acceleration up to 1 g (with factory setting for amplification), 10 to 500 Hz,
following IEC 60068-2-6
Electromagnetic compatibility
(EMC)
To IEC/EN 61326 and NAMUR Recommendation NE 21
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