Offset Correction; Simulation Current; Reset - Vega EL 11 Operating Instructions Manual

Set-up
measured separately, the capacitance value is
corrected by the calculation of the ohmic
resistance so that measuring errors due to
build-up or change in the product humidity are
compensated.
Application:
- high conductivity products
- adhesive, conductive products
- solids with fluctuating humidity contents
For the use in conductive, adhesive liquids, the
suitable electrode type EL 24 should be
applied.
(+/-) Mode 1 (90°)
(+) Mode 1 (90°)
(-) Mode 2 (45°)

7 Simulation current

With this function you can simulate the level. As
soon as you set the rotating switch to position 7,
the simulation is active. The actual current value
of the actual level is taken over for simulation.
With the plus and minus keys you can modify
the current value in a range of 3,8 mA to 22 mA.
Every time you push the key, the current value
changes in 10 µA-steps.
When you keep the key pushed, the value
modifies automatically and with increasing
speed.
(+) increase current
(-) reduce current

8 Reset

All adjusted values are reset to factory setting.
Note that also the adjustment is deleted. Tag
number, measurement loop designation etc.
®
from the HART or VVO-adjustment however
remain unchanged.
(+/-) Factory setting
Factory setting
0 Operate
Capacitive electrodes EL 4 ... 20 mA - compact
---
1 Min. adjustment
2 Max. adjustment
3 Integration time
4 Reverse characteristics
5 Linearisation
6 Sensor optimization mode 1
7 Simulation current
8 Reset

9 Offset correction

9 Offset correction
This function is required when an adjustment
should be carried out in m. This is only possible
with an oscillator CAP E 32 H Ex. With this
function the initial capacitance in the
electronics is saved. Requirement is that the
electrode is mounted in the vessel and
completely uncovered.
On electrodes with concentric tube this function
is already carried out as factory setting as the
vessel does not influence the measurement.
The offeset correction must only be repeated
when exchanging the oscillator.
(+/–) Initial capacitance is saved
4 mA at 0 pF
20 mA at 3000 pF
0,5 s
4 ... 20 mA
off
(90°)
off
---
already saved values
remain
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