Proline t-mass 65 PROFIBUS DP/PA Technical data
Endress+Hauser 109
10.1.5 Power supply
Electrical connections ä 27
Supply voltage 85 to 260 V AC, 45 to 65 Hz
20 to 55 V AC, 45 to 65 Hz
16 to 62 V DC
Cable entry Power supply and signal cables (inputs/outputs):
• Cable entry M20 × 1.5 (8 to 12 mm (0.31 to 0.47 inch))
• Threads for cable entries, ½" NPT, G ½"
Connecting cable for remote version:
• Cable entry M20 × 1.5 (8 to 12 mm (0.31 to 0.47 inch))
• Threads for cable entries, ½" NPT, G ½"
Cable specifications
(remote version)
ä 29
Power consumption AC: 85 to 260 V = 18.2 W ; 20 to 55 V = 14 W ; (including sensor)
DC: 8 W (including sensor)
Power supply failure Lasting min. 1 power cycle:
• EEPROM/HistoROM T-DAT saves measuring system data if power supply fails.
• HistoROM S-DAT is an exchangeable data storage chip with sensor specific data: (pipe type,
nominal diameter, serial number, flow conditioner, zero point, etc).
• Totalizer stops at the last value determined
Potential equalisation No measures necessary.
For devices in hazardous areas please refer to the additional Ex documentation.
10.1.6 Performance characteristics
Calibration reference
conditions
• Accredited according to ISO/IEC 17025
• Traceable to National Standards
• Calibration gas: air
• Temperature controlled to 24 °C ±0.5 °C (75.2 °F ± 0.9 °F) at atmospheric pressure
• Humidity controlled < 40% RH
Maximum measured error t-mass 65F:
±1.5 % of reading for 100 % to 10 % of full scale (at reference conditions)
±0.15 % of full scale for 10 % to 1 % of full scale (at reference conditions)
t-mass 65I:
±1.0% of reading
±0.5% of full scale (at reference conditions)
Repeatability ±0.4 % of reading for velocities above 1.0 m/s (3.3 ft/s)
Influence of medium pressure
(Pressure co-efficient)
Air: 0.35% per bar (0.02% per psi) of process pressure change
Other gases: on request
Response time Typically less than 2 seconds for 63 % of a given step change (in either direction).
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