Performing maintenance / inspection
FAM 15-70 ATEX
en
Page 78 /
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BEWA FAM-15-70 II 2G IIB+H2 T4 EX02 4510066 en-us 2020-01-24.docx
2020-01-24
4.
Carry out the corresponding
resistance measurement on
the teA2-X2:1 (5, 6,
7). In order to do this,
remove the single leads
from the terA2-
X2:5;6;7.
5.
Set the multimeter to resistance measurement.
6.
Insert the instrument leads on the multimeter into the bushings for
resistance measurement.
7.
Connect a instrument lead firmly with +A2-X2:1 for example, with a
crocodile clip.
8.
Also connect the second instrument lead with the wire from +A2-X2:5;
6; 7 of the contact to be measured e.g. with a crocodile clip.
9.
Now bring each float into position by it closing the contact.
10. The contact is OK if the measurement unit displays a resistance of
≤
1.2
Ω after a measuring time of around 5 seconds.
If there are larger resistance values, the contact is already damaged
and no longer switches reliably, which leads to sporadic failures.
11. Perform the assembly in reversed order of sequence.
Summary of Contents for FAM-50-M-2-A-45-Z-Z-D-Z-1/-EX02-F
Page 87: ......
