Isolated universal input Converter DAT5020 with DIP switch programmability.
GENERAL DESCRIPTION
The isolated universal Converter DAT5020 is a Din Rail mount signal transmitter with DIP Switch programmability. The input can be mA, V, mV, or potentiometer. The DAT5020 will provide a 4-20mA or voltage output signal.
The DAT5020 is accurate to 0.1% full scale and has less than 0.01%/'f thermal drift.
It is possible to set the minimum and maximum values of the input and output ranges in any point of the scale, keeping the minimum span shown in the table below. Also high burn out alarm or low burn out alarm is selectable.
The DAT5020 is isolated between the power supply and the input/output to 2000V, eliminates the effects of any ground loops and allows the use of the transmitter in heavy environmental conditions found in industrial applications.
The DAT5020 is in compliance with the standard 89/336/CEE on the Electromagnetic Compatibility.
The DAT5020 is housed in a plastic enclosure of 12.5 mm thickness suitable for DIN rail mounting in compliance with EN-50022 and EN-50035 standards.
USER INSTRUCTIONS
The converter DAT5020 must be powered by a direct voltage included in the 18 V to 32 V range. The power supply must be applied between the terminals R
(+Vdc) and Q (GND3). The green led PWR switched on shows the right state of supply of the device.
The output connections must be made as shown in the section "Output connections".
The current or voltage output signal is measurable between the terminals N (OUT) and M (GND2).
The input connections must be made as shown in the section "Input connections".
Voltage input: between the terminals L (INPUT) and I, G or E(GND1); passive current input: between the terminals L (INPUT) and I, G or E(GND1); active current input (coming from a passive transmitter) : between the terminals F (Aux. Supply) and L (INPUT); potentiometer: connect the ends of sensor between the terminals H (POT HI) and I, G or E(GND1) connect the central terminal to the terminal L (INPUT).
The configuration of input and output ranges values is made by DIP-switches (refer to the section “Input ranges table” and “Output ranges table”).
After the converter configuration, it is necessary to calibrate it using the ZERO and SPAN regulations; this operation is illustrated in the section “DAT5020:
Configuration and calibration”.
To install the device refer to the section “Installation instructions”.
TECHNICAL SPECIFICATIONS
INSTALLATION INSTRUCTIONS
DIMENSIONS (mm)
CONFIGURATION
1) Calculate the difference between the maximum and the minimum value of the input range (Span).
2) Refer to the “ Input ranges table " and determine in the column " SPAN" the position where the calculated value is included, then referring to the position obtained determine in the column “ZERO”, the line in which the minimum value is included . In the correspondent line is shown as to set the DIP-switches .
3) Set the DIP-switches as indicated .
4) Connect on input a 3 wire Pt100 simulator programmed to supply the maximum and minimum values of the input range or a fixed resistor of the same values.
5) Set the simulator at the minimum temperature or to connect a fixed resistor correspondent to the minimum value .
6) By the ZERO potentiometer calibrate the output at the 4 mA value .
7) Set the simulator at the maximum temperature or to connect a fixed resistor correspondent to the maximum value .
8) By the SPAN potentiometer calibrate the output at the 20 mA value .
9) Repeat the operation from the step 5 to the step 8 until the output value will be correct ( 3 attempts typically required).
Configuration ex. : -30/200 °C
Span => 200°C - (-30°C) = 230°C;
Input switches configuration (DSI ): Off, Off, Off, Off.
CONNECTIONS
LOAD CHARACTERISTIC
ISOLATION STRUCTURE
