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

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Technical data

Proline Promass 80 PROFIBUS PA

92

Cable specifications

Remote version

→ Page 29 → Page 26 ff.

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.

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