Cable specifications, Power consumption, Power supply failure – FMC Corporation - Talstar 80 Benutzerhandbuch
Seite 92: Potential equalization, 6 performance characteristics, Reference operating conditions, Maximum measured error, Mass flow (liquid), Promass f, premium cal, Promass f, m, a, i, s, p

Technical data
Proline Promass 80 PROFIBUS PA
92
Cable specifications
Remote version
PROFIBUS see Page 29
Power consumption
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
Power supply failure
Lasting min. 1 power cycle:
• EEPROM saves measuring system data if power supply fails
• HistoROM/S-DAT: exchangeable data storage chip which stores the data of the sensor (nominal
diameter, serial number, calibration factor, zero point, etc.)
Potential equalization
No measures necessary.
10.1.6
Performance characteristics
Reference operating
conditions
Error limits following ISO/DIS 11631:
• 20 to 30 °C (68 to 86 °F); 2 to 4 bar (30 to 60 psi)
• Accuracy based on accredited calibration rigs according to ISO 17025
• Zero point calibrated under operating conditions
• Field density calibrated (or special density calibration)
Maximum measured error
The following values refer to the pulse/frequency output. The measured error at the current output
is typically also ±5 μA.
o.r. = of reading
Mass flow (liquid)
Promass F, Premium Cal:
±0.10% ± [(zero point stability ÷ measured value) · 100]% o.r.
Promass F, M, A, I, S, P:
±0.15% ± [(zero point stability ÷ measured value) · 100]% o.r.
Promass E:
±0.30% ± [(zero point stability ÷ measured value) · 100]% o.r.
Promass H:
±0.175% ± [(zero point stability ÷ measured value) · 100]% o.r.
Mass flow (gas)
Promass F:
±0.35% ± [(zero point stability ÷ measured value) · 100]% o.r.
Promass M, A, I, S, P:
±0.50% ± [(zero point stability ÷ measured value) · 100]% o.r.