FMC Corporation - Talstar 80 사용자 설명서

Technical data

Proline Promass 80 PROFIBUS PA

96

Promass F, M, A, I, S, P: 

±0.25% ± [½ · (zero point stability ÷ measured value) · 100]% o.r.

Promass E:

±0.35% ± [½ · (zero point stability ÷ measured value) · 100]% o.r.

Promass F:

±0.05% ± [½ · (zero point stability ÷ measured value) · 100]% o.r.

Promass M, A:

±0.10% ± [½ · (zero point stability ÷ measured value) · 100]% o.r.

Promass E, H, I, S, P:

±0.20% ± [½ · (zero point stability ÷ measured value) · 100]% o.r.

o.r. = of reading
Zero point stability: see "Max. measured error" 

Calculation example (mass flow, liquid):
Given: Promass 80 F / DN 25, flow = 8000 kg/h
Repeatability: ±0.05% ± [½ · (zero point stability ÷ measured value) · 100]% o.r.
Repeatability 

→ ±0.05% ± ½ · 0.54 kg/h ÷ 8000 kg/h · 100% = ±0.053% 

1 g/cc = 1 kg/l

Promass F:

±0.00025 g/cc 

Promass M, H, E, A, S, P:

±0.0005 g/cc 

Promass I:

±0.001 g/cc 

±0.25 °C ± 0.0025 · T (T = fluid temperature in °C)
(±0.5 °F ± 0.0015 · (T – 32), T = fluid temperature in °F)

Influence of medium 
temperature

When there is a difference between the temperature for zero point adjustment and the process 
temperature, the typical measured error of the Promass sensor is ±0.0002% of the full scale 
value / °C (±0.0001% of the full scale value / °F). The typical measured error of the Promass E 
sensor is ±0.0003% of the full scale value / °C (±0.0002% of the full scale value / °F).