Emerson Process Management 7951 Ventilation Hood User Manual


 
Chapter 11 Configuring by using the menus
Page 11.10
11.8 Configuring flowmeter details
LIVE
Input data
Differential press
DP
MASS FLOW RATE
CALCULATION
ISO 5167 OR AGA3
ALARM
If limits are
exceeded
LIMITS
FIXED Input data
High Low
LIVE
Input data
Prime density
Qm
VOLUME FLOW RATE
CALCULATION
RESULTS
Qv
Orifice
diameter
Pipe
diameter
Isentropic
exponent
Dynamic
viscosity
Tapping
code
RESULTS
Orifice discharge coefficient
Beta
Velocity of approach factor
Orifice expansibility factor
Reynolds number
Corrected pipe diameter
Corrected orifice diameter
K
Qm
PRESSURE LOSS
CALCULATION
RESULTS
Pressure
loss
Line press
Line temp
Line density
Figure 11.9 Calculating orifice mass and volume flow rate