Wika FLR User Manual download pdf (Page 7)

WIKA operating instructions level sensors model RMG

13442163.01 06/2010 GB/D/F

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 oat by hand from Min. to Max.

■

The displayed resistance value changes continuously depending on

the connected wire colours (Tab. 1):

black-brown (R1) blue-brown (R2) black-blue (Ri)

Resistance value incre-

ases in proportion to

the height of the oat.

Resistance value drops

from the value of the

total resistance inverse-

ly proportionally to the

height of the oat.

Indication of the total

resistance (Ri)

Table 1

The value of the resistance chain is given on the tag plate mounted at

the level transmitter.

1 2 3 4 5 6 7 8 9 10 11 12 ... 27 28

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Wika FLR User Manual Page 7