Input; Measured Variable; Measuring Range; Operable Flow Range - Endress+Hauser Proline Promass 80E Technical Information

Measured variable

Measuring range

Operable flow range

Input signal

6

Input

• Mass flow (proportional to the phase difference between two sensors mounted on the measuring tube to
register a phase shift in the oscillation)
• Fluid density (proportional to resonance frequency of the measuring tube)
• Fluid temperature (measured with temperature sensors)
Measuring ranges for liquids
DN
8
15
25
40
50
Measuring ranges for gases
The full scale values depend on the density of the gas. Use the formula below to calculate the full scale values:
· ρ
g = g
÷ 225 [kg/m³]
max(G) max(F) (G)
g
= max. full scale value for gas [kg/h]
max(G)
g
= max. full scale value for liquid [kg/h]
max(F)
ρ
= Gas density in [kg/m³] at operating conditions
(G)
Here, g can never be greater than g
max(G)
Calculation example for gas:
• Sensor type: Promass E, DN 50
• Gas: air with a density of 60.3 kg/m³ (at 20 °C and 50 bar)
• Measuring range (liquid): 70000 kg/h
Max. possible full scale value:
· ρ
g = g
÷ 160 [kg/m³] = 70000 kg/h · 60.3 kg/h ÷ 160 kg/m³ = 26400 kg/h
max(G) max(F) (G)
Recommended full scale values
See information in the "Limiting flow" section → Page 20 ff.
Greater than 1000: 1. Flow rates above the preset full scale value do not overload the amplifier, i.e. the totalizer
values are registered correctly.
Status input (auxiliary input)
U = 3 to 30 V DC, R = 5 kΩ, galvanically isolated.
i
Configurable for: totalizer reset, positive zero return, error message reset, zero point adjustment start, batching
start/stop (optional).
Status input (auxiliary input) with PROFIBUS DP and MODBUS RS485
U = 3 to 30 V DC, R = 3 kΩ, galvanically isolated.
i
Switching level: 3 to 30 V DC, polarity-independent.
Configurable for: totalizer reset, positive zero return, error message reset, batching start/stop (optional), batch
totalizer reset (optional).
Current input (only Promass 83)
Active/passive selectable, galvanically isolated, resolution: 2 A
< 700 Ω, U
• Active: 4 to 20 mA, R
L
= 150 Ω, U
• Passive: 0/4 to 20 mA, R
i
Range for full scale values (liquids) g
0 to 2 000 kg/h
0 to 6 500 kg/h
0 to 18000 kg/h
0 to 45000 kg/h
0 to 70000 kg/h
max(F)
= 24 V DC, short-circuit proof
out
= 30 V DC
max
Proline Promass 80E, 83E
to g
min(F) max(F)
Endress+Hauser