Calibration setup
Page 84
FiberPatrol FP1150 Product Guide
Location Calibration for Loop configurations
Calibrating the Set Start for Sensor 1 and the Set End for Sensor 2 (Loop configurations)
Adjust the Detection Settings (see
).
1.
Set the Sensor 1 Offset = 0, Sensor 1 Scale = 1, Sensor 2 Offset = 0, Sensor 2 Scale = 1.
2.
Proceed to a point that is 10 m (33 ft.) away from the sensor start point on the Sensor 1 side
and conduct 3 tap tests at this location. Wait at least 15 seconds between each test.
3.
Calculate the average location of the 3 tests for Sensor 1 (low value).
For the Sensor 1 start point:
Sensor 1 (low value) - 10 m = Start point of sensing for Sensor 1
Subtract 10 m for the start point service loop.
If there is an optional isolation loop, subtract another 10 m from the result to put the start point
inside the isolation loop.
•
e.g., average location of 3 tap tests for Sensor 1 = 134 m
subtract 10 m to get back to the start point of Sensor 1
(134 m - 10 m = 124 m)
subtract 10 m for the splice point service loop
(124 m - 10 m = 114 m)
in this example (see
) there is an isolation loop, subtract 10 m for the isolation
loop
(114 m - 10 m = 104 m)
the Set Start for Sensor 1 = 104 m
Figure 88 Temporary settings for location calibration
Note
For Sensor 1, the FiberPatrol cable between the Sensor Unit and the
detection start point must be set to non-sensing.
For Sensor 2 the end of the FiberPatrol sensing region must be defined.
Figure 89 Tap test location - Set Start Sensor 1 (fully closed loop example)
select the Automatically Clear Alarms After checkbox,
set the time period to 10 seconds
and select the Upon Completion checkbox
set the disturbance Life and
use the default
settings
the Event Life to 10 seconds
service
loop (10 m)
isolation
loop (13 m)
service
loop (10 m)
start/end point post
10 m (33 ft.)
from start point
tap cable away
start point (Sensor 1 =>)
start point (<=Sensor 2)
