KROHNE OPTITEMP TT 50 C-R EN - Manual (Page 15)

ELECTRICAL CONNECTIONS
4
15
OPTITEMP TT 50 C/R
www.krohne.com 09/2010 - 4000636502 - MA OPTITEMP TT 50 C/R R03 en
Electrical connections
4.1 Safety instructions
4.2 Electrical connections (in-head and rail-mount)
The input and output signals and the power supply must be connected in accordance with the
following illustrations. The in-head transmitter is easy to install with the connection head
installation kit. To avoid measuring errors, all cables must be connected properly and the
screws tightened correctly.
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!
The transmitter is protected against polarity reversal. No damage will occur to the device if the
polarity of the supply voltage is switched. The output will then indicate 0 mA.
DANGER!
Always observe the corresponding chapters and the instructions in this manual when connecting
devices with an Ex certificate!
Never install or operate the TT 50 C in potentially explosive areas, it might cause an explosion
that can result in fatal injuries!
For the operation in potentially explosive areas the manufacturer offers the TT 50 C Ex. You may
only connect this transmitter to sensors that meet the requirements for "simple equipment" in
EN 60079-11:2007, section 5.7.
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 15 Monday, September 13, 2010 5:07 PM