KROHNE OPTISWITCH 6500 C EN - Manual (Page 21)

OPERATION
5
21
OPTISWITCH 6500 C
www.krohne.com 01/2014 - 4000649104 - MA OPTISWITCH 6500 R04 en
5.1 Start-up
Before connecting to power, please check that the system has been correctly installed.
This includes:
• The device must be mechanically safe and mounted in compliance with the regulations.
• Check the leak-tightness at the sleeve.
• Make sure that the cable gland is tight or, as the case may be, the M12 plug is properly
screwed down.
• The power connections must have been made in compliance with the regulations.
• Check that the electrical operating data of the power supply are correct.
• Switching on the power.
i Check for correct switching function.
5.2 Fault diagnosis and corrective action
Fault Cause Action / elimination
LED not "on" Sensor cap not in contact with
liquid product
-
Supply voltage < 12 V, permittivity
too low
Measure voltage at Pin 1 and 2
(M12: pin 1 and 3)
No switching output Cable break Check continuity of cables
Incorrect polarity of supply Reverse terminals 1 and 2 (M12:
terminal 1 and 3)
Short-circuit Check wiring