WIKA RMG Betriebsanleitung Seite 9

6.
Function test
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6. Function test
A function test can only be carried out when the level sensor has been
removed.
Disconnect the cable
■
Connect an ohmmeter to two wires
■
Move the float by hand from Min. to Max.
■
The displayed resistance value changes continuously depending on
■
the connected wire colours (Tab. 1):
black-brown (R1)
Resistance value incre-
ases in proportion to
the height of the float.
The value of the resistance chain is given on the tag plate mounted at
the level transmitter.
WIKA operating instructions level sensors model RMG
blue-brown (R2)
Resistance value drops
from the value of the
total resistance inverse-
ly proportionally to the
height of the float.
Table 1
black-blue (Ri)
Indication of the total
resistance (Ri)
GB
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