KROHNE LS 6600 EN - Manual (Page 12)

4
ELECTRICAL CONNECTIONS
12
LS 6600
www.krohne.com 03/2013 - 4001367702 - MA LS 6600 R02 en
Electrical connections
4.1 Safety instructions
4.2 Description of electrical connection
Pin 1 and 3 are used for supplying a DC voltage of 12...30 V. 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 35 mA (excluding load switched). This value should be
taken into account in connection with the recommended use of a fuse. An active switching output
(Pin 4) is available. The switching voltage is a minimum of 1 V below the supply voltage. The
maximum output current is 20 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.
.book Page 12 Tuesday, March 12, 2013 11:44 AM