4 Digit LED Loop powered Indicator DAT8050 programmable.
GENERAL DESCRIPTION
The DATEXEL DAT8050 4 Digit loop powered digital indicator accepts an input and a power supply from a 4-20 mA current loop signal.
No external power supply is needed.
The display can be adjusted to have a span between -1999 and 9999 points, the Zero can be adjusted between -1999 and 9999 by buttons on the front panel. It is also possible to set the decimal point.
The DATEXEL DAT8050 is designed for mounting in a panel in accordance with DIN 43700 standard. It also has a function to freeze (HOLD) the display.
The DATEXEL DAT8050 is in compliance with the directive CEE/336/89 on the Electromagnetic Compatibility.
When the measured current is lower than 3.8 mA, the display will show the message " Lo "; in the same way, when the current measured is higher than 20.2 mA, the display will show the message " Hi ".
It is possible to apply the desired engineering unit using the adhesive labels supplied with the device.
The DATEXEL DAT8050 unit, developed, manufactured and tested in strict accordance with the quality assurance standard UNI EN ISO9001:2000, is in compliance with the 89/336/EEC directive on the Electromagnetic Compatibility. It is housed in a strong plastic enclosure of 48 x 96 x 74 mm in accordance with the standard DIN43700.
USER INSTRUCTIONS
The DATEXEL DAT8050 must be connected as shown in the section: “Connections”.
The input signal on terminal T1 is measured and converted in function of the scale of measure previously programmed ; such measure is visualised on the display. The same signal, on output , is supplied on the terminal T4 (DIAGRAM A). Between the terminals T1 and T4 there is a voltage drop lower than 5 V, necessary to supply the device. The terminals T2 and T3 are internally connected, and can be used to connect the ends of the return cable of the current loop eventually interrupted (DIAGRAM B).
To program the visualization of the device refer to the section “Configuration and calibration”.
To install the device refer to the section “Installation Instructions”.
TECHNICAL SPECIFICATIONS
INSTALLATION INSTRUCTIONS
The DATEXEL DAT8050 is suitable for mounting on panel which must be fixed by the proper kit.
The device needs a panel cut-out of 92 * 45 mm ( W * H ) .
It is necessary to install the device in a place without vibrations; avoid to routing conductors
near power signal cables .
CONFIGURATION & CALIBRATION
In the chart in the side is shown the procedure to program the device.
The programming of the scale values and the decimal point is made by the buttons "ENTER" and "SET" located on the front side of the device . It is possible to do this operation in any moment giving to the instrument a current included in the 4 ÷ 20 mA range.
The setting of the range is made in three steps:
- setting of full scale value
- setting of decimal point
- setting of begin scale value.
The value of the single digit can be set between "0" and "9"; to set a negative number, the value of the more significant digit (on the left ) can also be set to "-" and "-1".
To set a number shorter of 4 digits (lower than 1000), set the more significant digits as "0".
The position of decimal point can be set nearby to each one of four digits. Set the decimal point on the right to visualize integer numbers.
If the more significant digit ( from left to right ) is as "0" an empty space will be displayed until the first valid digit, or the unit digit (example: the value -00.3 will be visualized as " - 0.3").
The use of buttons depends on the operation in progress.
The button ENTER :
- actives the procedure of configuration;
- confirms the modifies introduced from the user in each configuration step and allows to move to the next step.
The button SET:
- during the setting of the full and begin scale values, it increases the digit value; during the setting of decimal point, it moves its position to the left.
- cancels the modifies introduced from the user for each configuration step, moving to the next step .
NOTE: During the programming, if any button isn't pushed for at least 10 seconds, the device will automatically return in the measure condition, without save.
DIMENSIONS (mm)
CONNECTIONS
