Datexel Isolated universal signal converter TC and RTD Input, Analog Output - DAT4135

Multiple Input, Analog Output, highly Accurate, Made in Italy

The converter DAT 4135 is able to execute many functions such as: measure and linearisation of the temperature characteristic of RTDs sensors, conversion of a linear resistance variation, conversion of a standard active current signal, conversion of a voltage signal even coming from a potentiometer connected on its input.

Moreover, the DAT 4135 is able to measure and linearise the standard thermocouples with internal cold junction compensation. In function of programming, the measured values are converted in a current or voltage signal. The device guarantees high accuracy and performances stability both in time and in temperature.

The programming of the DAT 4135 is made by a Personal Computer using the software PROSOFT, developed by DATEXEL, that runs under the operative system "WindowsTM". By use of PROSOFT, it is possible to configure the converter to interface it with the most used sensors.

In case of sensors with a no-standard output characteristic, it is possible to execute, via software, a "Custom" linearisation (per step) to obtain an output linearized signal.

For Resistance and RTDs sensors it is possible to program the cable compensation with 3 or 4 wires; for Thermocouples it is possible to program the Cold Junction Compensation (CJC) as internal or external.

It is possible to set the minimum and maximum values of input and output ranges in any point of the scale, keeping the minimum span shown in the table below.

Moreover, it is available the option of alarm for signal interruption (burn-out) that allows to set the output value as high or low out of scale.

The terminals of the current signal on input side must be only connected to active current loop.

The 2000 Vac isolation between input and power supply/output eliminates the effects of all ground loops eventually existing and allows the use of the converter in heavy environmental conditions found in industrial applications.

It 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.

The advantages for DAT4135:

• Configurable input for RTD, TC, mV, V, mA, Resistance and Potentiometer
• Galvanic isolation at 2000 Vac
• Configurable output in current or voltage
• Configurable by Personal Computer
• High accuracy
• On-field reconfigurable
• EMC compliant – CE mark
• Suitable for DIN rail mounting in compliance with EN-50022 and EN50035

Input for DAT4135 Converter is:

• TC(*) CJC int./ext.

1. J -200°C 1200°C 100 °C
2. K -200°C 1370°C 100 °C
3. S -50°C 1760°C 400 °C
4. R -50°C 1760°C 400 °C
5. B 400°C 1820°C 400 °C
6. E -200°C 1000°C 100 °C
7. T -200°C 400°C 100 °C
8. N -200°C 1300°C 100 °C

• Current

1. mA -10 mA +24 mA 2 mA

• RES. 2,3,4 wires

1. Low 0 W 300 W 10 W
2. High 0 W 2000 W 200 W

• Potentiometer

1. (Nominal value) 0 W 200 W 10%
2. 200 W 500 W 10%
3. 0.5 KW 50 KW 10%

• Voltage

1. mV -400 mV +400 mV 2 mV
2. mV -100 mV +700 mV 2 mV
3. Volt - 10 V +10 V 500 mV

• RTD(*) 2,3,4 wires

1. Pt100 -200°C 850°C 50°C
2. Pt1000 -200°C 200°C 50°C
3. Ni100 -60°C 180°C 50°C
4. Ni1000 -60°C 150°C 50°C

Output for DAT4135 is as follows:

• Direct current 0 mA 20 mA 4 mA
• Reverse current 20 mA 0 mA 4 mA
• Direct voltage 0 V 10 V 1 V
• Reverse voltage 10 V 0 V 1 V

Power supply

• Power supply voltage is 18 .. 30 Vdc and the Reverse polarity protection is equal to 60 Vdc max.

ISOLATION

• Input – Power supply/Out 2000 Vac, 50 Hz,1 min.

ENVIRONMENTAL CONDITIONS

• Operative Temperature -20°C .. +70°C
• Storage Temperature -40°C.. +85°C
• Humidity (not condensed) 0 .. 90 %
• Maximum Altitude 2000 m
• Installation Indoor
• Category of installation II
• Pollution Degree 2

MECHANICAL SPECIFICATIONS

• Material Self-extinguish plastic
• IP Code IP20
• Wiring wires with diameter 0.8÷2.1 mm2 /AWG 14-18
• Tightening Torque 0.8 N m
• Mounting in compliance with DIN rail standard EN-50022 and EN-50035
• Weight about 90 g.

Industries/applications

• Furnace
• Oil and gas
• Brick manufacturing
• Heat Exchangers
• Industrial Processes
• Heating/cooling systems