Table of Contents
Advertisement
DT1102 V
Area of application
Principle of operation
20230127-V0
3.3. Operating principle
The DT1102 V (PS) Fully Configurable Galvanic Isolator provide
signal transmission and conversion between DC current or DC voltage
signal source and signal processing units.
The instruments feature complete 3-way isolation: the input, the
output and the power supply are isolated from each other.
The instruments has three inputs:
1./ -25 mA - +25 mA DC current,*
2./ -2.5 - +2.5 V DC voltage,*
3./ -125 - +125 V DC voltage.*
The instruments has two outputs:
1./ 0 - 22 mA DC current,*
2./ 0 – 10.5 V DC voltage.*
* You must use one input and one output at a time.
The PC configurator software is accessory or free downloadable from
homepage:
www.datcon.hu
The input type and range and the output type and range are
configurable (current or voltage). See chapter 10.1. Technical
specification.
The input is bipolar, symmetrical.
The output is unipolar.
The configuration parameters can be download from
the PC to the DT1102 V via USB port.
The front panel LED indicators provide information about the
operating status of the device.
The input current flows through the measuring resistor or the input
voltage is divide by the attenuator. This voltage is measured by a 24-
bit A/D converter. The digital output signal of the A/D converter is
processed by a microcontroller.
The microcontroller produces a pulse width modulated output signal
which is proportional to the processed, scaled measuring value. The
output pulse is galvanic isolated by an opto coupler. After filtering the
pulse is converted into analogue current or voltage signal.
Connecting the instrument to the PC through the USB interface the
instrument's communication circuitry come into active state and it is
ready for communication with the configuration software.
7
Advertisement
Table of Contents
