Electrical connections, Electrical connections 4.1 safety instructions – KROHNE OPTITEMP TT 10 C-R EN User Manual
Page 20

4
ELECTRICAL CONNECTIONS
20
OPTITEMP TT 10 C/R
www.krohne.com
02/2013 - 4000752703 - MA OPTITEMP TT 10 C/R R03 en
Electrical connections
4.1 Safety instructions
DANGER!
All work on the electrical connections may only be carried out with the power disconnected.
DANGER!
Observe the national regulations for electrical installations!
CAUTION!
Before you connect and operate a transmitter, always note the following items to avoid an 
electric shock:
•
For all work on the electrical connections use an electrostatic safe (i.e. grounded) 
workplace! In this way you minimize the risk of electrostatic discharge (ESD).
•
Assure that the cover was closed after any work on the device. The cover prevents 
electrostatic discharge if the solder pads are touched inadvertently; furthermore it protects 
the solder pads against dirt.
DANGER!
Never connect or operate a non-Ex version of a transmitter in potentially explosive areas, 
otherwise it might cause an explosion that can result in fatal injuries! Before you connect and 
operate a transmitter version with an Ex approval, always note the following items to avoid an 
explosion which may result in fatal injuries:
•
Never do any soldering work in potentially explosive areas!
•
Connect the Ex version only to Ex approved sensors or sensors that meet the requirements 
for "simple apparatus" in EN 60079-11:2007, section 5.7.
•
Observe the corresponding regulations, the declaration of conformity, the type test certificate 
of the device, the ATEX certificate "Special conditions for safe use" for Ex versions and the 
relevant instructions of this document.
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.
.book Page 20 Tuesday, February 26, 2013 1:43 PM
