DAT701 3.5 digit LED digital indicator.
GENERAL DESCRIPTION
The DATEXEL DAT701 is a 3.5 digit LED digital indicator with high accuracy and reliability able to measure current or voltage signals.
The DATEXEL DAT701V A : measures voltage from ± 200 mV up to ± 20 V.
The DATEXEL DAT701V B: measures voltage from ± 2 V up to ± 200 V.
The DATEXEL DAT701I A: measures current signal from ± 200 mA up to ± 2 mA.
The DATEXEL DAT701 I B: measures current signal from ± 2 mA up to ± 200 mA.
The DATEXEL DAT701 is designed for mounting on a panel in accordance with DIN 43700 standards.
It is possible to set, by jumper, the input attenuation ratio of the display (x 10 and x 100) and the decimal point position.
Moreover are available the functions of measuring freeze (HOLD) and testing display (TEST).
The DATEXEL DAT701 is in compliance with the directive CEE/336/89 on the Electromagnetic Compatibility.
USER INSTRUCTIONS
The digital indicator DATEXEL DAT701 must be powered by a direct 5 V ± 5% voltage applied between the terminals 7 (+V) and 8 (GND); to avoid the damage of device it is important that the power supply value doesn't exceed the limit of 5,5 V.
The input connections must be made as shown in the section "Input connections". The input signal in voltage or current, must be applied between the terminals 2 (IN HI) and 3 (IN LO) for the basic full-scale measure, between the terminals 1 (IN ATT) and 3 (IN LO) for the attenuated full-scale measure.
The following complementary functions are available:
- function TEST : use it to control the display, it switches on all the segments independently from the input signal. To use this function connect the terminal 6 (TEST) to the terminal 7 (+V);
- function HOLD: use it to freeze the measure at the last value detected. To use this function connect the terminal 5 (HOLD) to the terminal 8 (GND).
If the power supply and the input signals are isolated, connect the terminal 3 (IN LO) to the terminal 4 (COM).
To configure, calibrate and install the device refer to sections “Configuration and calibration DAT701” and “Installation Instructions”.
TECHNICAL SPECIFICATIONS
INSTALLATION INSTRUCTIONS
The device DAT 701 is suitable for mounting on panel (DIN 43700); the device needs a panel cut out of 68 * 33 mm (W*H).
The mounting kit (inclusive of connector and jumpers for setting ) is supplied with the device.
It is necessary to install the device in a place without vibrations; avoid to routing conductors near power signal cables .
DIMENSIONS (mm)
CONFIGURATION
Attenuation ratio setting
Refer to sections “Programming tables”, “Input connections” and “Dimensions”, set the input attenuation ratio by the proper jumper connector and connect the input as indicated.
Decimal point setting Refer to sections “Programming tables” and “Regulations”, set the position of the decimal point by the proper jumper connector. -
CALIBRATION CONTROL
Refer to section “Regulations”.
1) By screwdriver, remove the external frame.
2) By screwdriver, unlock the hookups indicated as A, B, C and D in the figure and remove the front panel.
3) Set, by a voltage or current simulator the maximum value of the input scale.
4) By potentiometer regulate the value to visualize.
5) It's not necessary to calibrate the Zero value.
CUT OUT
