4
Calibration and Operation
This chapter is concerned with the basic settings of the Silometer FMC 672 Z/677 Z which
allow it to operate with the capacitance probes. The principle sections describe:
•
Commissioning
•
Calibration of the Silometer FMC 672 Z/677 Z for standard application
•
Level offset
•
Display of measured values
•
Locking the parameter matrix.
The Silometer FMC 672 Z/677 Z controls are described in Chapter 3, linearization in
Chapter 5 and the setting of the analogue outputs and relays in Chapter 6 and 7.
Note your settings!
Note your parameters in the tables provided in the back cover. Should the transmitter be
exchanged at a later date, simply reenter all the parameters and the system is ready to
run - no recalibration is necessary!
4.1
Commissioning
The commissioning comprises two steps:
•
Transmitter reset
•
Entry of sensor constants from the electronic insert
Transmitter reset
A transmitter reset enters the factory based parameters, see Table in back cover, into
the operating matrix. It is made by entering a number between 670 and 679 at V9H5.
Sensor constants
Enter the sensor constants, »f
o«
and »S« printed on the electronic insert, see Chapter 2,
Section 2.1, at fields V3H5/ V3H6 for channel 1 and V7H5/V7H6 for channel 2. This
ensures that there is no need for recalibration if the sensor has to be replaced.
Step
Matrix
Entry
Significance
1
V9H5
e.g. 672
Enter any number 670
…
679 to reset transmitter
2
-
»E«
Registers entry
3
V3H5
e.g. 99.5
Enter »f
o
« value for sensor 1
4
-
»E»
Register entry
5
V3H6
e.g. 1.02
Enter »S« value for sensor 1
6
-
»E«
Registers entry
7
V7H5/V7H6
…
Repeat Steps 3 to 6 for sensor 2.
Operating mode
After commissioning the operating mode is entered at V8H0 and the transmitter
calibrated. Turn to the appropriate Section for details:
•
0
=
level measurement on both channels (default), Section 4.2, 4.3
•
1, 2 =
level measurement on channel 1 or 2 only, Section 4.2, 4.3
•
3
=
differential measurement, Chapter 8, Section 8.1
•
5
=
level measurement with reference probe, Chapter 8, Section 8.2
•
6, 7 =
simulation channel 1 or 2, see Chapter 9, Section 9.2.
Step
Matrix
Entry
Significance
1
V8H0
e.g. 0
Operating mode 0 = default, measures on both channels
2
-
»E«
Registers entry
Silometer FMC 672 Z/677 Z
Chapter 4: Calibration and Operation
22
Содержание Silometer FMC 672 Z
Страница 6: ...Silometer FMC 672 Z 677 Z Notes on Safety 4...
Страница 59: ...Silometer FMC 672 Z 677 Z Operating matrix...
Страница 62: ...Silometer FMC 672 Z 677 Z Operating matrix...
Страница 63: ...Silometer FMC 672 Z 677 Z Operating matrix...
