6 corresponding source container – VEGA MINITRAC 31 4 … 20 mA_HART - four-wire With SIL qualification User Manual

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3 Product description

MINITRAC 31 • 4 … 20 mA/HART - four-wire

43389-EN-131119

The electronics module PT30E.XX is a replacement part for radiation-

based sensors MINITRAC 31.
The electronics module can only be exchanged by VEGA service

technician.

For mounting MINITRAC 31 holders as well as special mounting ac-

cessories are available. Please contact our sales department.

3.6 Corresponding source container

A radioactive isotope in a suitable source holder is the prerequisite for

a radiation-based measurement setup.
The handling of radioactive substances is regulated by law. The radia-

tion protection rules of the country in which the system is operated

apply first and foremost.
In Germany, for example, the current radiation protection ordinance

(StrlSchV) based on the Atomic Energy Law (AtG) applies.
The following points are important for measurement with radiation-

based methods:

A handling permit is required for operation of a system using gamma

rays. This permit is issued by the respective government office or the

responsible authority (in Germany, for example, offices for environ-

mental protection, trade supervisory boards, etc.)
You can find further instructions in the operating instructions manual

of the source container.

When handling radioactive sources, unnecessary radiation exposure

must be avoided. An unavoidable radiation exposure must be kept as

low as possible. Take note of the following three important measures:

Fig. 3: Measures for protection against radioactive radiation
1 Shielding

2 Time

3 Distance

Shielding: Provide good shielding between the radioactive source

and yourself as well as all other persons. Special source containers

(e.g. VEGASOURCE) as well as all materials with high density (e.g.

lead, iron, concrete, etc.) provide effective shielding.
Time: Stay as short a time as possible in radiation exposed areas.

Electronics module

Mounting accessory

Handling permit

General instructions for

radiation protection