KROHNE OPTISWITCH 6500 C EN - Manual (Page 11)

INSTALLATION
3
11
OPTISWITCH 6500 C
www.krohne.com 01/2014 - 4000649104 - MA OPTISWITCH 6500 R04 en
3.1 General notes on installation
3.2 Installation requirements
• Use only the recommended sleeves or adapters. If other systems are used, no guarantee can
be given for proper functionality or leak-tightness.
• The connection thread must have direct electrical contact with the threaded sleeve and the
metal tank or pipe.
• Do not use Teflon or paper gaskets between switch and hygienic adapter. The PEEK sensor
together with the stainless steel adapter will perform a hygienic tightening. Assumed that the
requirements have been followed.
• The tightening torque for the sleeve should be 20...25 Nm (for sliding connection 25...30 Nm).
• If the tank or pipe is electrically non-conductive (e.g. plastic), the metal face of a screw-in
sleeve with a diameter of at least 28 mm / 1.1" will suffice as reference ground.
3.3 Process connection
The hygienic ½" process sleeve is easy to weld into tanks or pipes. The marking points to the
centre of the future position of the cable gland or M12 plug connector. This form of assembly
allows installation in conformity with standards of hygiene (to 3A, FDA).
Various hygienic adapter sleeves are available for fitting to other process connections. For more
information please refer to chapter "Order code".
The sensor can be installed in any desired position.
INFORMATION!
Inspect the cartons carefully for damages or signs of rough handling. Report damage to the
carrier and to the local office of the manufacturer.
INFORMATION!
Do a check of the packing list to make sure that you have all the elements given in the order.
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.