FineTek JTR, Инструкция по эксплуатации, Страница: 16 / 39

16
7.2 Installation Instruction
7.2.1 Installation site
Pay attention to the following when installing JTR3 series products. When it is installed in a
metal container, the distance between the container parts and the inner wall should be at
least over 300mm. For non-metal containers, the distance to the inner wall should be at
least over
500mm. During the operation, make sure the sensor doesn’t get into contact
with any device or tank wall. When using the sensor of a steel rope, it is recommended
fixing the sensor bottom in the tank to reduce the vibration to the sensor. For the tanks with
core shape at the lower part, it is recommended installing the product in the center of the
container to measure the lowest point at the bottom.
※
Please note the upper/lower blind area of the instrument. It can’t measure the lowest point of
the sensor.
Note! When welding is required for the installation, please remove the electronic module of
the sensor from the junction box before welding. It can prevent the damage on the
electronic device due to the inductive coupling or other abnormalities.
Plastic container/glass container
The measuring principle of guided wave radar requires a metal plane at the process junction
point. Therefore, when it is used in the plastic container, it requires an instrument with flange
(since DN 50) or a metal plate (ø > 200 mm/8 in) placed under the process connection.
Note, the metal plate should be connected with the process connection directly. When installing
the measuring sensor of the connecting rod or steel rope in the plastic container without a metal
wall, the measuring value will be affected by the strong electromagnetic field (The interference
emission based on EN 61326: Class A). In this case, please use the co-axis measuring sensor.
Metal Tank
D>300mm
Non-metal Tank
D>500mm