Loop Powered 3.5 digit LCD digital indicator DAT733.
GENERAL DESCRIPTION
The DATEXEL DAT733 is a loop powered indicator that has a 3.5 digit LCD digital display with high accuracy and reliability.
The display can be adjusted to have a span between 100 and 2000 points, the Zero can be adjusted between -1999 and 1999 by dip-switches and potentiometers. It is also possible to set the decimal point.
The DATEXEL DAT733 is designed for mounting in a panel in accordance with DIN 43700 standards. It also has a function to freeze (HOLD) the display.
The DATEXEL DAT733 is in compliance with the directive CEE/336/89 on the Electromagnetic Compatibility.
USER INSTRUCTIONS
The digital indicator DATEXEL DAT733 must be connected as follows.
Connect the active 4÷20 mA current loop between the terminals T1 (IN+) and T2 (IN-). On the display, will be visualised the value of the loop current in function of the selected visualisation. The instruments is internally protected against reverse polarity.
The device causes a voltage drop of 2.5 Vdc on the loop, then it is necessary to considerate this parameter to calculate the minimum power supply value for the transmitter located in the loop.
The complementary function HOLD could be used to freeze the measure at the last value detected. To use this function connect the terminal T3 (HOLD) to the terminal T4 (COM); in order to avoid damages for the device, it is recommended to active this function for a maximum time of 2 minutes.
To configure, calibrate and install the device refer to sections “Configuration and calibration DATEXEL DAT733” and “Installation Instructions”.
TECHNICAL SPECIFICATIONS
INSTALLATION INSTRUCTIONS
The DATEXEL DAT733 is suitable for mounting on panel (DIN 43700); the device needs a panel cut out of 68 * 33 mm (W*H).
It is necessary to install the device in a place without vibrations; avoid to routing conductors near power signal cables .
DIMENSIONS (mm)
CONNECTIONS
CONFIGURATION
Scale of visualisation setting
Refer to section “Programming tables” and set the input scale of visualisation by the proper dip-switch as indicated.
Decimal point setting
Refer to section “Programming tables” and set the position of the decimal point by the proper dip-switch as indicated.
CALIBRATION
Refer to section “Dimension and Regulations”.
1) Connect on input a simulator of active current signal.
2) Set the simulator at the minimum value of the input signal (4
mA).
3) By the ZERO potentiometer, adjust the minimum value of
visualisation.
4) Set the simulator at the maximum value of the input signal (20
mA).
5) By the SPAN potentiometer, adjust the maximum value of
visualisation.
CUT OUT
