3) Calibration for tanks
with conical outlet
# Matrix Entry Remarks
1 V0H1 E Tank empty, current
level in %, m, ft
2 - »E« Register entry
3 V0H2 F Tank full, current
level in %, m, ft
4 - »E« Register entry
After calibration the level can be read off at
V0H0 in %, m, or ft. Volume or weight can
be measured after a) manual or b) semi-
automatic entry of a linearisation table.
a) Linearisation, manual
You require a linearisation table, H/V or
H/G, max. 30 pairs in increasing order
• Level H in %, m or ft
• Volume V or weight G in customer units.
# Matrix Entry Remarks
5 V2H1 0 Manual
6 - »E« Register entry
7 V2H2 1 Table no.
8 - »E« Register entry
9V2H3V/G
1
…
30
Volume/weight*
10 - »E« Register entry
11 V2H4 H
1
…
30
Level m or ft*
12 - »E« Register entry
13 V2H5 »E« Next table no.*
— springs to V2H3
*Repeat # 9
…
13 until all values entered
13 V2H0 3 Activate "manual"
14 - »E« Register entry
Note!
• First pair ~ 0 % level, in %, m, ft.
last pair ~ 100 % level, in %, m, ft.
• On error E602 or E604, correct table.
Re-activate linearisation in V2H0.
• For linearisation volume => level,
see Appendix, p. 47.
After linearisation
• Volume/weight is displayed at V0H0
• Level is displayed at V0H9
• Density correction, p. 29.
Next step
… Set analogue output and relays in volume
or weight units, p. 30…33.
Note!
1
2
3
4
5
6
7
8
H
V/G
V0H1
V0H2
V2H0...V2H5
BA142_30
»Empty« level
E
(0
…
40%)
»Full« level
F
(60
…
100%)
probe or sensor
covered
V2H4
H
1
H
2
…
H
30
V2H3
V/G
1
V/G
2
…
V/G
30
0% = start of linearisation
Fig. 4.4:
Parameters for calibration and linearisation in a tank
with conical outlet
Chapter 4: Level Measurement Prolevel FMC 661
26 Endress+Hauser
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