Vega VEGAPULS Air 41, Руководство по эксплуатации

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13 Diagnostics and servicing
VEGAPULS Air 41 • Autarkic device with measured value transmission via radio technology
64808-EN-210426
Fault description Cause Rectification
Measured value jumps spo-
radically towards 100 %
during emptying
Level
time 0
Changing condensation or contamina-
tion on the antenna
Carry out false signal suppression or in-
crease false signal suppression in the
close range by editing
Measured value fluctuates
around 10 … 20 %
Level
time 0
Various echoes from an uneven medi-
um surface, e.g. an extraction funnel
Check parameter "Material Type" and
adapt, if necessary
Reflections from the medium surface
via the vessel wall (deflection)
Optimize installation position and sen-
sor orientation
13.5 Replacing lithium cells
The lithium cells in the device should be replaced in the following
cases:
•
Low reported remaining life of the cells used
•
Longer deactivation or storage of the device
•
Device can no longer be activated
Only use the specified cell type and replace all cells (for type and
number see chapter " Technical data ").
3)
Proceed as follows when carrying out the exchange:
1. Unscrew the housing lid
2. Push the cell retaining clip in the direction of the arrow and re-
move
3. Remove old cells
4. Leave the device without power, i. e. without cells, for at least 4
minutes
5. Insert new cells, observe ±-polarity at the bottom of the cell holder
6. Press the cell retaining clip in the middle, arrow direction to the
plus pole, must click into place audibly
7. Screw on housing cover
8. Reset internal clock with the operating tool
This completes the cell replacement, the capacity is reset automati-
cally to 100 % for operating app and DTM.
Note:
All user settings in the operator menu are retained, i.e. an activated
sensor remains activated.
Preparation
Cell exchange
3)
The cells are all connected in parallel. If the polarity is incorrect, the affected
cell is disconnected by electrical measures.