Microtronics BLE mA Link, Руководство пользователя, Страница: 17 / 46

Chapter 5 Functional principle
Chapter 5 Functional principle
Functional principle
1 Compatible data logger (e.g.
myDatasensH2S1000 BLE/3G ATEX ) 2 BLE mA Link
3 System to locally process the 4-20 mA signal (e.g.
dosing pump controlled via analogue signal) 4 Power source for 4-20 mA current loop
Functions and components:
l
BLE mA Link
The portable instrument is approved for Ex zone 2 and is designed to locally issue measurement values
recorded by a compatible data logger as a 4-20 mA signal. The current value being issued is
transferred to the BLE mA Link via a Bluetooth connection (Bluetooth Low Energy).
l
Compatible data logger (e.g.myDatasensH2S1000 BLE/3G ATEX )
Data logger for recording gas concentrations. A list of compatible data loggers is provided in the
chapter "Data loggers" on page 39.
l
System to locally process the 4-20 mA signal (e.g. dosing pump controlled via analogue signal)
System that has an interface which is compatible with the specifications listed in
chapter "Specifications" on page 7 and that supplies the power for the 4-20 mA current loop.
Rev. 01 17