Endress+Hauser prolevel FMC 661 - 7 Appendix; Calibration and Linearisation in Volume Units

7 Appendix
7.1 Calibration and linearisation in volume units
Use the following two procedures if you can calibrate in volume units only but still require
a linearisation.
Linearisation, horizontal
cylinder
The parameters must be entered in the
order below. Two parameters are entered:
• Tank diameter, D
• Tank volume, V.
# Matrix Entry Remarks
1V9H5670 Reset
2 - »E« Register entry
3 V3H5 fo Zero frequency
4 - »E« Register entry
5V3H6
∆
f Sensitivity
6 - »E« Register entry
7 V3H0 1 Volume units
8 - »E« Register entry
9V2H7
D
Tank diameter,
%, m or ft
10 - »E« Register entry
11 V2H8
V
Tank volume*,
hl, gal
…
12 - »E« Register entry
13 V2H0 1 Activate linearisation
14 - »E« Register entry
15 V0H1 E Tank empty, current
volume in hl, gal
…
16 - »E« Register entry
17 V0H2 F Tank full, current
volume in hl, gal
…
18 - »E« Register entry
Note!
• D determines the level units at V0H9
• If V =100 is entered, the calibration
must be made in % volume units
After linearisation
• Volume is displayed at V0H0
• Level is displayed at V0H9
Next step… Set analogue output and relays in volume
units, see p. 30…33.
V0H1
V0H2
D (V2H7)
V (V2H8)
»Empty« vol. E
(0…40%)
»Full« vol. F
(60…100%)
BA142_50
probe or
sensor
covered
zero point for calibration
zero point for calibration
100% = V (V2H8)
Fig. 7.1:
Parameters for calibration and linearisation in a
horizontal cylinder
Note!
Chapter 7: Appendix Prolevel FMC 661
46 Endress+Hauser