F3 - Middle Diameter Calibration - Only For Field Calibration; F4 - Maximum Distance Calibration (Axis Calibration) - Only For Lab Calibration - Re US3 User Manual

Re
S.p.A.

F3 - Middle diameter calibration - only for field calibration

Important
sensor's action cone.
Position a known diameter reel in front off the sensor (diagram on page 12).
The red LED indicates the presence of the target:
if the red LED is off the target is present and calibration can be performed correctly
-
if the red LED is flashing the target is not detected and calibration is impossible
-
Connect a voltmeter to one of the sensor's two analog outputs (blue wire or orange wire).
To start calibration make sure that the red LED remains constantly off then press SET; the red LED
will light up and the output voltage will increase starting from 5V.
Use the ENTER key to increase or reduce the voltage. When the output reaches the value calculated
using the formula shown below, press SET to confirm it. If calibration has been performed the red
LED flashes twice.
Es. If maximum diameter is 1000 mm and known diameter is 400 mm, output must be 4Vdc.
To select following function press ENTER key.

F4 - Maximum distance calibration (axis calibration) - only for lab calibration

Important
sensor's action cone.
Position a stiff target (ex. cardboard) in front of the sensor. The distance between target and the
capsule has to be the same one which is between sensor and the reel rotation axis once sensor is
installed in its own working position (see diagram on page 13).
The red LED indicates the presence of the target:
if the red LED is off the target is present and calibration can be performed correctly
-
if the red LED is flashing the target is not detected and calibration is impossible
-
To calibrate, make sure that the red LED remains constantly off then press SET ; if calibration has
been performed the red LED flashes twice.
Note
: rotation axis is the centre of reel shaft.
To select following function press ENTER key.
Rev.12/04/11
: Before calibrating, make sure that there are no objects other than the target in the
volt =
volt
: Before calibrating, make sure that there are no objects other than the target in the
[ ]
(
10 * known diameter mm
[ ]
maximum diameter mm
( )
10 * 400
= =
4
1000
)
US3
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