RTD Digital Indicator DAT734 LCD or LED
GENERAL DESCRIPTION
The DATEXEL DAT734 is a 3.5 digit LCD or LED digital indicator with high accuracy and reliability able to measure temperature from a Pt100 probe.
The zero and span can be adjusted with potentiometers located on the rear of the DATEXEL DAT734.
The DATEXEL DAT734 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 DAT734 is in compliance with the directive CEE/336/89 on the Electromagnetic Compatibility.
USER INSTRUCTIONS
The digital thermometer DATEXEL DAT734 must be connected as follows.
Connect the power supply between the terminals T3 (+V) and T2 (GND); in order to avoid damages for the device, the power supply value must be lower than 5.5 Vdc.
The input sensor Pt100 3 wires must be connected between the terminals T5 (PT2) and T6 (PT3), the third wire must be connected to the terminal T4 (PT1). The input sensor Pt100 2 wires must be connected between the terminals T5 (PT2) and T6 (PT3) with a short-circuit between the terminals T4 (PT1) and T5 (PT2).
The complementary function HOLD could be used to freeze the measure at the last value detected. To use this function connect the terminal T1 (HOLD) to the terminal T2 (GND); in order to avoid damages for the device, it is recommended to active this function for a maximum time of 2 minutes.
To calibrate and install the device refer to sections “Calibration DATEXEL DAT734” and “Installation Instructions”.
TECHNICAL SPECIFICATIONS
INSTALLATION INSTRUCTIONS
The device DATEXEL DAT734 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
CALIBRATION
Refer to section “Dimensions and Regulations”.
1) Connect on input a Pt100 simulator.
2) Set the simulator at the minimum value of the input range.
3) By the ZERO potentiometer, adjust the minimum value of visualisation.
4) Set the simulator at the maximum value of the input range.
5) By the SPAN potentiometer, adjust the maximum value of visualisation.
CUT OUT
