Endress+Hauser prolevel FMC 661, Руководство по эксплуатации

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4 Level Measurement
This chapter is concerned with the level measurement functions (operating mode 1 in
V8H0, default) of the Prolevel FMC 661; the principle sections describe:
•
Commissioning
•
Calibration: — for upright cylindrical tanks
— for horizontal cylindrical tanks
— for tanks with conical outlet
— dry calibration for hydrostatic sensors
•
Analogue outputs
•
Relays
•
Display of measured values
•
Locking the parameter matrix.
With the exception of the dry calibration, the configuration procedure is independent of
whether a hydrostatic pressure sensor or capacitance probe is connected to the Prolevel.
4.1 Commissioning
When programming the Prolevel for the first time, reset the module to the factory based
parameters, see Table in back cover. Then enter the probe constants fo and S (
∆
f) —
measured at 25°C. This ensures that the EC 37 Z/EC 47 Z electronic insert or Deltapilot
can be replaced without the need for recalibration, see Section 6.4.
Step Matrix Entry Significance
1 V9H5 e.g. 671 Enter any number 670
…
679 to reset transmitter
2 - »E« Register entry
3 V3H5 e.g. 475.3 Enter zero frequency f
o
(offset) of electronic insert or sensor
4 - »E« Register entry
5 V3H6 e.g. 6.805 Enter sensitivity, S or
∆
f, of electronic insert or sensor
6 - »E« Register entry
V0H0
fo, S/ f
BA142_27
Measured
values
Standard
calibration
Analogue
output
Relays
Parameter
lock
4.1
4.2
4.3
4.4
4.5
Calibration
horizontal
cylinder
Calibration
conical
tank
"Dry"
calibration
ρ
gh
Sensor
constants
4.6
Fig. 4.1:
Procedure: calibration and
operation for level measurement
Prolevel FMC 661 Chapter 4: Level Measurement
Hauser 23