Endress+Hauser Proline Fieldcheck - Group SIMULATION

Device functions - vortex measuring devices Proline Fieldcheck
82 Endress+Hauser
13.1.1 Group SIMULATION
Please note the following:
• In contrast to Coriolis or electromagnetic flow measuring devices, a gap-free flow range 0 – Q
max
cannot be simulated with vortex flowmeters. Below a certain fluid speed (approx. 0.15 m/s for
water), the amplitude of the vortex signal becomes so small that it is no longer possible to record
the measured value. For this reason, when setting the simulated flow, the values 0, the smallest
flow Q
min
and the largest flow Q
max
are displayed.
• The flow value actually simulated can deviate slightly from the value entered in the FLOW 1
function. The value actually simulated is displayed on the first line in the HOME position of the
Fieldcheck local display.
Function group CONFIGURATION
Function description
FUNCTION  SIMULATION  CONFIGURATION
OPERATION MODE Use this function to select the operation mode for the simulation.
The following signals can be freely configured:
• Operation mode GAS/STEAM: 0, Qmin to 70 m/s
• Operation mode LIQUID: 0, Qmin to 9 m/s
Display:
CONTINUOUS
The flow behavior in the process has low dynamics.
a0001708
Q1 = Simulation value 1
FLOW SPECIFICATION PROWIRL 72
Use this function to display the flow unit configured in the measuring device.
Display:
VOLUME FLOW
MASS FLOW
CORRECTED VOLUME FLOW
!
Note!
• For the simulation of a calculated mass flow, the system uses the value specified by
the flowmeter in the OPERATING DENSITY function.
• For the simulation of corrected volume flow, the system uses the values specified by
the flowmeter in the OPERATING DENSITY and REFERENCE DENSITY functions.
PROWIRL 73
Use this function to select the flow unit in the measuring device.
Options:
VOLUME FLOW
MASS FLOW
CORRECTED VOLUME FLOW
!
Note!
The selection of the flow units can be restricted by the configured fluid:
MASS FLOW  not available for gas volume and liquid volume
CORRECTED VOLUME FLOW  not available for saturated steam, superheated steam,
gas volume and liquid volume
Q
Q1
START
STOP
t