Loop fiber adjustment ALM-6815 and ALM-6814
After installation of the fiber (see page 26 for connecting and passing fiber) and the
concentrator module, both loop fiber must be calibrated. To do this, we use the microswitches
3, 4, 5, 6 on dip-switch function and trimmer R30, R27, R34 and R17.
Dip-switches and trimmers needed for calibration
S1 Dip-switch
•
switch3
enabling calibration loop1
•
switch4
enabling calibration loop2
•
switch5
enabling fine calibration loop1
•
switch6
enabling fine calibration loop2
Adjustment trimmers
•
R30
Primary calibration loop1
•
R27
Fine calibration loop1
•
R34
Primary calibration loop2
•
R17
Fine calibration loop2
Note
: If you use only the loop1 is not necessary to calibrate the Loop2
Installation and Programming Manual V1.2
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