Commissioning - SWR DensFlow Operating Instructions Manual

5 Commissioning

9
•
For start-up the measurement system it is necessary to adjust the sensor.
After switching on the power supply there is at least a warm-up time of 5
minutes required before any adjustment starts. Please check again :
•
The correct cabling between sensor and the evaluation unit.
•
The correct adjustment of the sensor pipe.
Commissioning DensFlow
For start-up the sensor has to be calibrated and parameterized to each
product, which will be measured. It is necessary to assign
the mass flow to the display and initial value. The menu
functions are mostly self-explaining. Following a short
introduction to the overview:
By leaving the menu level and confirming the memory
function all values changed are transferred.
Basic Function At least a two-point-calibration (normally min and max)
are sufficient for measuring the density function. Enter
the data in menu 3.5 and 3.6.
The velocity measurement is firmly defined as an
absolute measurement by the distance of the sensor
plates and does not have to be calibrated.
Min-Point Set point 1 to 0, when the mass flow is shut down and the
measuring pipe is empty, calibrate this point now.
Max-Point Set point 2 to known maximum flow rate with normal
conveying and calibrate as well. This value can be
adjusted later on when weighing by adjustment of
correction factor 2.6.
Thus the basic function of the measuring system is given
and it is now ready for operation
Adjustment See menu 2, point 1 to 6 for the adjustments to the
individual local conditions regarding material, measuring
units, etc.
Analog Output 1 is firmly configured for the measuring of the throughput.
The measuring range is adjusted in menu point 2.2.
Analog Output 2 is firmly configured for the measuring of the velocity.
The measuring range is adjusted in menu point 2.1.
Analog Output 3 is firmly configured for the measuring of the velocity.
The measuring range is fix adjusted to
0 = 4 mA
Max =20 mA
0 = 4mA
Max = 20mA
0 m/s = 4 mA
10m/s = 20 mA