All Way Signal Isolation Converter.
DAT4235
The DAT4235 is an All-Way Signal Isolation Converter with the input, output, and power supply all isolated from each other. The DAT4235 is DIN Rail mount and PC programmable. Having a thickness of only 1/2" allows compact installation on either top hat DIN Rail or G type DIN Rail. The input is universal and selectable from thermocouples, RTD, mA, V, mV, resistance, and potentiometer. The DAT4235 is bipolar input and can accept negative inputs such as -20mA or -10V. For thermocouple inputs, the DAT4235 will linearize the input and provide a 4-20mA or voltage output signal. The DAT4235 is accurate to 0.1% full scale and has less than 0.01%/°f thermal drift.
The DAT4235 is programmable by Prosoft software version 3.06 PC based software, which has been developed by DATEXEL to be user friendly. The software can be downloaded free of charge on the download page at www.datexel.com.
For resistance and RTD sensors, it is possible to program the DAT4235 for 2, 3 or 4 wire RTD's.
It is possible to set the minimum and maximum values of the input and output ranges at any point of the scale, keeping the minimum span shown in the Data Sheet. Also, high burn out alarm or low burn out alarm is selectable.
The DAT4235 is isolated between the input, output, and power supply to 1500V, eliminating the effects of any ground loops, and allows the use of the converter in heavy environmental conditions found in industrial applications. The DAT4235 is in compliance with the standard 89/336/CEE on the Electromagnetic Compatibility.
The DAT4235 is housed in a plastic enclosure of 1/2", 12.5 mm thickness suitable for DIN rail mounting in compliance with EN-50022 and EN-50035 standards.
The DAT4235 is able to measure and linearize the standard thermocouples with internal cold junction compensation.
The DAT4235SEL is a version that allows the output signal to be enabled and disabled when a voltage is applied to the SEL terminals. The output is disabled and goes to a high impedance when the SEL input is energized by 4 to 30 Vdc. This allows several DAT4235SEL to be mounted together and used as a Multiplexer.
| INPUT | OUTPUT | POWER SUPPLY |
|---|---|---|
| Current, Thermocouples, RTD, Voltage, | Current 4-20mA, 0-20mA, 20-0mA | Power Supply Voltage 18-32Vdc |
| Potentiometer, Resistance. | Voltage 0-10V, 10-0V. | Reverse polarity protection 60Vdc |
| CURRENT CONSUMPTION | CONFIGURATION | ISOLATION |
| Between 35 and 55 mA | PC Programmable | Between Input/Comms/Power Supply 1500Vac. |
| EMC | HOUSING | TEMPERATURE |
| For Industrial environments | Material self-extinguishing | Operating Temperature -40°F +185°F -40°C +85°C |
| Immunity EN 61000-6-2 | Dimensions W x H x T 4 2/5 x 3 1/2" x 1/2" | Storage Temperature -40°F +185°F-40°C +85°C |
| Emission EN 6100-6-4 | 112 x 90x x 12.5 mm | Humidity (non condensing) 0-90% |
| Weight 3 oz 90 g |
| Input type: | Min | Max | Min. span |
| K Type Thermocouple | -328℉ | 2500℉ | 122℉ |
| -200℃ | 1370℃ | 50℃ | |
| J Type Thermocouple | -328℉ | 2192℉ | 122℉ |
| -200℃ | 1200℃ | 50℃ | |
| R Type Thermocouple | -58℉ | 3200℉ | 752℉ |
| 50℃ | 1760℃ | 400℃ | |
| S Type Thermocouple | -58℉ | 3200℉ | 752℉ |
| 50℃ | 1760℃ | 400℃ | |
| B Type Thermocouple | 752℉ | 3308℉ | 752℉ |
| 400℃ | 1820℃ | 400℃ | |
| E Type Thermocouple | -328℉ | 3308℉ | 122℉ |
| -200℃ | 1000℃ | 50℃ | |
| T Type Thermocouple | -328℉ | 752℉ | 122℉ |
| -200℃ | 400℃ | 50℃ | |
| N Type Thermocouple | -328℉ | 2372℉ | 122℉ |
| -200℃ | 1300℃ | 50℃ | |
| RTD 2,3,4 wires | |||
| Pt100 | -328℉ | 1562℉ | 68℉ |
| -200℃ | 200℃ | 20℃ | |
| Pt1000 | -328℉ | 392℉ | 122℉ |
| -200℃ | 200℃ | 50℃ | |
| Ni100 | -76℉ | 356℉ | 68℉ |
| -60℃ | 180℃ | 20℃ | |
| Ni1000 | -76℉ | 302℉ | 122℉ |
| -60℃ | 150℃ | 50℃ | |
| Voltage | |||
| mV | -400mV | 400mV | 2 mV |
| mV | -100mV | 700mV | 2 mV |
| Volts | -10V | 10V | 500mV |
| Potentiometer | |||
| Nominal value | 0Ω | 200Ω | 10% |
| 200Ω | 500Ω | 10% | |
| 0.5KΩ | 50KΩ | 10% | |
| RES. 2,3,4 wires | |||
| Low | 0Ω | 300Ω | 10Ω |
| High | 0Ω | 2000Ω | 10Ω |
| Current | |||
| mA | -20mA | 20mA | 2mA |
| Output type | Min | Max | Min. span |
| Direct current | 4 mA | 20 mA | 4 mA |
| Reverse current | 20 mA | 4 mA | 4 mA |
| Direct voltage | 0 V | 10 V | 1 V |
| Reverse voltage | 10 V | 0 V | 1 V |
| Input calibration | |
| RTD | > of ±0.1% f.s. or ±0.36 ℉ ±0.2 ℃ |
| Low res. | > of ±0.1% f.s. or ±0.27 ℉ ±0.15℃ |
| High res. | > of ±0.2% f.s. or ±1 Ω |
| mV, T/C | > of ±0.1% f.s. or ±18 uV |
| Volts | > of ±0.1% f.s. or ±2 mV |
| mA | > of ±0.1% f.s. or ±6 uA |
| Output Calibration | |
| Current | ±7 uV |
| Voltage | ±5 mV |
| Input impedance | |
| T/C, mV | <=10MΩ |
| Volts | <=1MΩ |
| Current | ~ 50Ω |
| Linearity (1) | |
| T/C | ± 0.2 % f.s. |
| RTD | ± 0.1 % f.s. |
| Line resistance influence | |
| T/C mV | <=0.8uV/Ω |
| RTD 3 wires | 0.05%/Ω 50Ω (balanced max) |
| RTD 4 wires | 0.005%/Ω 100Ω (balanced max) |
| RTD excitation current | |
| Typical | 0.35mA |
| Thermal drift (1) | |
| Full scale | ±0.018 ℉ ±0.01% ℃ |
| CJC | ±0.018 ℉ ±0.01% ℃ |
| Response time (10÷ 90%) | about 50 ms |
| Burn-out values | |
| Max Current | Output value 21.5mA |
| Min Current | Output value -21.5mA |
| Max Voltage | Output value 10.5 V |
| Min Voltage | Output value -10.5 V |
| Damping time constant | |
| Selectable | from 0.1 to 30 s. |
| Value 0 | function not active. |
| Power supply | |
| Power supply voltage | 10 .. 32 Vdc |
| Reverse polarity protection | 60 Vdc max |
| Current Consumption | |
| Current Output | 55 mA |
| Voltage Output | 35 mA |
| Output Load resistance | |
| Current output Rload | >650Ω |
| Voltage output Rload | <600Ω |
| Between Input, Output and Power supply | 1500 Vac, 50Hz, 1 Min |
| Temperature & humidity | |
| Operative temperature | -40℉ to 185℉ |
| -40℃ to 85℃ | |
| Storage temperature | -40℉ to 185℉ |
| -40℃ to 85℃ | |
| Humidity (not condensed) | 0 to 90 % |
| Maximum Altitude | 2000m |
| Installation | Indoor |
| Category of installation | II |
| Pollution Degree | 2 |
| Housing | |
| Material | Self-extinguishing plastic |
| IP Code | IP20 |
| Wiring | 0.8 to 2.1 mm2 AWG14-18 |
| Tightening Torque | 0.8 N m |
| Mounting | DIN Rail EN-50022 and EN-50035 |
| Weight | 3 Oz |
| 90 g. | |
| Dimensions | W 0.5" H 3" D 4.4" |
| W 12.5mm H 90mm D 112mm | |
| EMC | for industrial environments |
| Immunity | EN 61000-6-2 |
| Emission | EN 61000-6-4 |
| Thermocouple Input | |
| Thermocouple | Terminals + L and - I |
| mV Input | |
| mV | Terminals + L and - I |
| 2 Wire RTD and 2 Wire Resistance Input | |
| 2 Wire RTD | Terminals G and I |
| 2 Wire Resistance | Terminals G and I |
| 3 Wire RTD and 3 Wire Resistance Input | |
| 3 Wire RTD | Terminals G,H and I |
| 3 Wire Resistance | Terminals G,H and I |
| 4 Wire RTD and 4 Wire Resistance Input | |
| 4 Wire RTD | Terminals G,H and L,I |
| 4 Wire Resistance | Terminals G,H and L,I |
| 4 Wire RTD | Terminals G,I and wiper H |
| Volts | Terminals + E and - I |
| Passive mA Input |
| 18 to 30 Vdc power supply | |
| Power Supply | Terminals + Q and - R |
| Voltage Output | |
| Signal | Terminals + N and - M |
| Current Output | |
| Signal | Terminals + N and - M |
The DAT4235 is provided as requested on the Customer's order. Refer to the section “Technical specification” to determine input and output ranges. The mounting kit for DIN rail is provided only on request with code DIN RAIL. In case the configuration is not specified, the parameters must be set by the user.
| DAT4235 | Pt100 | 3 Wires | 0-200℉ | S.L. | 4-20mA | Burn-out up |
| Column 1 Product Name | DAT4235 |
| Column 2 Input type | mA, Volts, RTD, Resistance, mV, or Pot |
| Column 3 Sensor option | RTD/Res 2, 3, or 4 wire |
| Column 4 Input range | Zero and span setting |
| Column 5 linearization | linearization options |
| S.L. Standard linearization | |
| N.L. No linearization | |
| C.L. linearization by step Custom: specify input curve | |
| Column 6 Burn out up | Burnt output option High or Lo |
The DAT4235 has an LED on the front panel for status indication.
| LED | Color | State | Description |
| Power | Green | On | Device has power |
| Off | Device has no power |