Technical data Proline Prowirl 73
82 Endress+Hauser
10.1.5 Power supply
Electrical connection ä 25
Supply voltage Non-Ex: 12 to 36 V DC (with HART: 18 to 36 V DC)
Ex-i/IS and Ex-n: 12 to 30 V DC (with HART 18 to 30 V DC)
Ex-d/XP: 15 to 36 V DC (with HART: 21 to 36 V DC)
Cable entry Power supply and signal cables (outputs):
• Cable entry M20 1.5 (6 to 12 mm / 0.24 to 0.47")
• Cable entry M20 1.5 for armored signal cable (9.5 to 16 mm / 0.37 to 0.63")
• Thread for cable entry: ½" NPT, G ½", G ½" Shimada
Cable specification • Permitted temperature range:
– Standard cable: –40 °C (–40 °F) to max. permissible ambient temperature plus 10 °C (18 °F)
– Armored cable: –30 to +70 °C (–22 to +158 °F)
• Remote version ä 27
Power supply failure • Totalizer stops at the last value determined.
• All settings are kept in the EEPROM.
• Error messages (incl. value of operated hours counter) are stored.
10.1.6 Performance characteristics
Reference operating
conditions
Error limits following ISO/DIN 11631:
• 20 to 30 °
C (+68 to +86 °F)
•2 to 4 bar (29 to 58 psi)
• Calibration rig traced to national standards.
• Calibration with the process connection corresponding to the particular standard.
Maximum measured error • Volume flow (liquid):
< 0.75% o.r. for Re > 20 000
< 0.75% o.f.s for Re between 4000 and 20 000
• Volume flow (gas/steam):
< 1% o.r. for Re > 20 000 and v < 75 m/s (246 ft/s)
< 1% o.f.s for Re between 4000 and 20 000
• Temperature:
< 1 °C (T > 100 °C / 212 °F, saturated steam and for liquids at ambient temperature);
< 1% o.r. [K] (gas)
Rise time 50% (agitated under water, following IEC 60751): 8 s
• Mass flow (saturated steam):
– For flow velocities v = 20 to 50 m/s (66 to 164 ft/s), T > 150 °C / 302 °F (423 K)
< 1.7% o.r. (2% o.r. for remote version) for Re > 20 000
< 1.7% o.f.s (2% o.f.s for remote version) for Re between 4000 and 20 000
– For flow velocities v = 10 to 70 m/s (33 to 230 ft/s), T > 140 °C / 284 °F (413 K)
< 2% o.r. (2.3% o.r. for remote version) for Re > 20 000
< 2% o.f.s (2.3% o.f.s. for remote version) for Re between 4000 and 20 000
• Mass flow of superheated steam and gas (air, natural gas AGA NX-19, AGA8-DC92,
ISO 12213-2, AGA8 Gross Method 1, SGERG-88, preprogrammed gases – does not apply to the
real gas equation):
!
Note!
A Cerabar S device has to be used for the measuring errors listed below. The measured error used
to calculate the error in the measured pressure is 0.15%.
< 1.7% o.r. (2.0% o.r. for remote version) for Re > 20 000 and
process pressure < 40 bar abs (580 psi abs)
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