Switching On The Power Supply In Custody Transfer Mode; Supply Voltage; Cable Entries; Remote Version Cable Specifications - Endress+Hauser Promass 84F Technical Information

Switching on the power
supply in custody transfer
mode
!

Supply voltage

Cable entries

Remote version cable
specifications

Power consumption

Power supply failure

Potential equalisation

Reference operating
conditions

Maximum measured error

10
If the device is started in custody transfer mode, for example also after a power outage, system error No. 271
"POWER BRK. DOWN" flashes on the local display. The fault message can be acknowledged or reset using the
"Enter" key or by means of the status input configured accordingly.
Note!
For correct measuring operation, it is not mandatory to reset the fault message.
85 to 260 V AC, 45 to 65 Hz
20 to 55 V AC, 45 to 65 Hz
16 to 62 V DC
Power-supply and signal cables (inputs/outputs)
• Cable entry M20 × 1.5 (8 to 12 mm / 0.31" to 0.47")
• Thread 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")
• Thread for cable entries, ½" NPT, G ½"
2
• 6 × 0.38 mm PVC cable with common shield and individually shielded cores
• Conductor resistance: ≤50 Ω/km (≤0.015 Ω/ft)
• Capacitance: core/shield: ≤420 pF/m (≤128 pF/ft)
• Cable length: max. 20 m (65 ft)
• Operating temperature: max. +105 °C (+221 °F)
Operation in zones of severe electrical interference:
The measuring device complies with the general safety requirements in accordance with EN 61010,
the EMC requirements of ICE/EN 61326, and NAMUR recommendation NE 21/43.
AC: <15 VA (including sensor)
DC: <15 W (including sensor)
Switch-on current
• Max. 13.5 A (<50 ms) at 24 V DC
• Max. 3 A (<5 ms) at 260 V AC
Lasting min. 1 power cycle:
• EEPROM or T-DAT save measuring system data if the power supply fails.
• HistoROM/S-DAT: exchangeable data storage chip with sensor specific data
(nominal diameter, serial number, calibration factor, zero point, etc.)
• See also "Switching on the power supply in custody transfer mode" → ä 10.
No special measures for potential equalization are required. For instruments for use in hazardous areas, observe
the corresponding guidelines in the specific Ex documentation.

Performance characteristics

• Error limits following ISO/DIS 11631
• Water, typically +20 to +30 °C (+68 to +86 °F); 2 to 4 bar (30 to 60 psi)
• Data according to calibration protocol ±5 °C (±9 °F) and ±2 bar (±30 psi)
• Accuracy based on accredited calibration rigs according to ISO 17025
The following values refer to the pulse/frequency output. Deviation at the current output is typically ±5 μA.
Design fundamentals → ä 13.
o.r. = of reading
Mass flow and volume flow (liquids)
• ±0.05% o.r. (PremiumCal, for mass flow)
• ±0.10% o.r
Proline Promass 84F
Endress+Hauser