Calibration; Troubleshooting - SICK CQF16 Instrucciones De Uso

7

CALIBRATION

7 Calibration
en
8

Troubleshooting

20 O P E R A T I N G I N S T R U C T I O N S | CQF16
Figure 34: Function diagram
The sensor can typically be used on plastic tank walls of about 0.5 - 6 mm and glass
walls of about 0.5 - 4 mm without calibration.
If the factory settings (full state taught in at a 2-mm distance to metallic destination)
are not sufficient, the sensor can be taught in using cables.
Calibration in full state
For most applications, calibration with a full tank or pipe is sufficient.
For applications with various types of fluids or large temperature ranges, it can be
beneficial to teach in the sensor with half the sensor surface covered.
Calibration in empty state
For most applications, calibration with an empty tank or pipe is sufficient.
For applications in which deposits, foam residues or moisture are expected, calibration
can be performed with existing residues.
Calibration modes
Table 8: Teach-in modes
Teach-in mode Teach-in process
Full state ET: Connect pin 2
or white wire to
L+
Empty state
Cancel calibra‐
tion
The Troubleshooting table indicates measures to be taken if the sensor stops working.
LED/fault pattern
Green LED not flashing, yellow
LED flashing (4 Hz, min 1 s)
Teach-in time LED display
> 2 s ... < 7 s Green LED flash‐
ing (1 Hz), yellow
LED is off
> 7 s ... < 12 s Green LED flash‐
ing (1 Hz), yellow
LED is on
> 14 s
Cause
Output short-circuit or input
voltage is under 10 V
Result
Yellow LED
flashes 3 times
(at 1 Hz)
Yellow LED
flashes 3 times
(at 1 Hz)
The switching set
point remains
unchanged.
Green LED off,
yellow LED flash‐
ing (4 Hz)
Measures
Test output wiring or voltage
supply
8022710.1F6T/2022-03-16 | SICK
Subject to change without notice