Type 8136

10 | 14

Visit product website 

8.

Product operation

8.1. Measuring principle

The radar measuring device consists of an electronic housing, a process connection element with antenna and a sensor. The antenna

emits short radar pulses with a duration of approximate 1 ns to the medium. These pulses are reflected by the medium surface and

received by the antenna as echoes. Radar waves travel at the speed of light. The running time of the radar pulses from emission to

reception is proportional to the distance and hence to the level. The determined level is converted into an output signal and transmit-

ted as a measured value.

The measuring range of the radar level measuring device begins physically at the end of the antenna. However, the min./max. adjust-

ment begins at the reference plane. The position of the reference plane depends on the sensor version.

• Version with encapsulated horn antenna: the reference plane is the sealing surface on the hexagon.

• Version with plastic horn antenna: the reference plane is the lower side of the flange.

Reference plane

Version with encapsulated

horn antenna

Version with plastic

horn antenna 80 mm

8.2.

8.3. Product operation notes

Operating techniques

The measuring device provides different operating techniques:

• the display/configuration module

• the suitable Bürkert DTM in conjunction with adjustment software according to the FDT/DTM standard, e.g. PACTware™ and PC

• a HART handheld

The entered parameters are generally saved in the measuring device Type 8136. Optionally, parameters may also be uploaded and

downloaded with the display/configuration module or saved in a file by using PACTware™/8136-DTM.

Set up with display/configuration module

Display/configuration module

Description

The display/configuration module can be inserted into the measuring device and removed

again at any time. It is not necessary to interrupt the power supply. The measuring device is

adjusted via the four keys of the display/configuration module.