KROHNE OPTISONIC 7060 EN - Manual (Page 26)

OPTISONIC 7060
Electrical & mechanical installation manual 730962.31.00 page 26 of 52
3.4.3 Checking the cable loops
To verify the cables to be correctly connected, check the cable loops. Proceed as follows:
• Disconnect both ends of the cable of the loop to be tested.
• This is to prevent connected devices from interfering with the measurement.
• Test the entire cable loop between CONVERTER and final device by measuring the loop
resistance.
• If you want to test the insulation resistance as well, you must disconnect the cables at
the electronics unit before using the insulation resistance tester.
Important
The test voltage applied would seriously damage the electronics unit!
• Reconnect all cables after the loop resistance test.
Important
• In non-intrinsically safe installations, only open the terminal boxes protected for use in
hazardous areas and connect/ disconnect cables when the system is disconnected from
the power supply.
• The front housing cover (with viewing panel) must only be opened when the system is
disconnected from the power supply and no less than 10 minutes after the system has
been switched off.
• Incorrect cabling may cause the OPTISONIC 7060 to fail.
This will lead to the annulment of any warranty claims. The manufacturer excludes any
liability for consequential damage.
IMPORTANT
IMPORTANT