3
INSTALLATION
14
TT 51 SERIES
www.krohne.com
08/2015 - 4000754203 - MA TT 51 R03 en
Installation
3.1 General notes on installation
3.2 In-head transmitter
These transmitters are intended for installation in DIN B connection heads or larger. The large
Ø7 mm / 0.28" center hole facilitates the electrical connection of the measurement sensor and
the installation. For detailed information refer to the chapter "Dimensions and weights".
INFORMATION!
Inspect the packaging 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.
Figure 3-1: Connection head installation kit
1
M4 screw
2
Spring
3
Lock washer
4
Sensor cables
5
Measuring insert
DANGER!
The TT 51 C transmitter is optionally available in an intrinsically safe version (zone 0, 1 and 2) for
installation in potentially explosive atmospheres.
The intrinsically safe version must be supplied by an intrinsically safe power supply unit or Zener
barrier placed outside of the potentially explosive zone.
The Ex transmitter must be installed in a housing with the protection rating IP20 or better
according to EN 60529 / IEC 60529.
MA_OPTITEMP_TT_51_en_150828_4000754203_R03.book Page 14 Friday, August 28, 2015 10:54 AM
