KROHNE OPTISWITCH 6500 C EN - Manual (Page 15)

ELECTRICAL CONNECTIONS
4
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OPTISWITCH 6500 C
www.krohne.com 01/2014 - 4000649104 - MA OPTISWITCH 6500 R04 en
4.1 Safety instructions
4.2 Description of electrical connection
Terminals 1 and 2 are used for supplying a DC voltage of 12...30 V (M12: terminal 1 and 3).
According to polarity, the output will switch to active or inactive when the sensor is immersed
(refer to connection diagram). The terminal wired to the negative pole is connected via an
internal protective diode to the housing.
The maximum power consumption is 70 mA (excluding load switched). This value should be
taken into account in connection with the recommended use of a fuse. An active switching output
(PNP) is available at terminal 5 (M12: terminal 4). The switching voltage is a minimum of 1 V
below the supply voltage. The maximum output current is 50 mA. At higher loads, the current is
limited accordingly. Damage through shorting cannot occur.
DANGER!
All work on the electrical connections may only be carried out with the power disconnected. Take
note of the voltage data on the nameplate!
DANGER!
Observe the national regulations for electrical installations!
DANGER!
For devices used in hazardous areas, additional safety notes apply; please refer to the Ex
documentation.
WARNING!
Observe without fail the local occupational health and safety regulations. Any work done on the
electrical components of the measuring device may only be carried out by properly trained
specialists.
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.
CAUTION!
When the top cover is removed, do not look directly at the LED with unshielded eyes or damage
to retina may occur!