DRAGOset for Temperature Transmitter D62T 45300
The temperature transmitter D62T 45300 converts the measuring values of Pt, Ni or TC sensors temperature linear in 0/4 to 20 mA or 0 to 5/10 V standard signals. The simple programming via the USB interface or alternatively the calibrated range selection via DIP switches and the compact housing is flexible to use. The high reliability and safe 3-port isolation are other features that guarantee the safe system operation.
In the selection "Sensor", select the sensor type that you will connect to the transmitter.
Compensation determines the type of connection that you make.
When resistance thermometers, such as Pt and Ni sensors:
|4-wire:||A 4-wire connection has the advantage that there are separate lines for the sensor current and for the measurement. The cable resistance has no influence.|
|3-wire:||Important in a 3-wire connection is that all wires have the same cross-section. The voltage drop is detected on only one side of the sensor and it is assumed that the line on the other sensor side produces the same voltage drop.|
|2-wire:||In the 2-wire measurement the cable resistances add to the measured value. The cable has to be as short as possible.|
For thermocouples, the compensation items change in internal, external and off:
|internal:||The terminal temperature is detected internal in the transmitter.|
|external:||You have an external Pt100 sensor to a terminal block, which measures the reference junction temperature.|
|off:||The measured input value is not corrected.|
You can set the desired Begin (lower range value) and End (upper range value) of measuring range. The span, ie the difference between the begin and end must be at least 50 °C. The possible settings are based on the operating temperature range of the sensor types:
|Pt 100||-200 °C to +850 °C|
|Pt 1000||-200 °C to +850 °C|
|Ni 100||-50 °C to +175 °C|
|Thermocouple type J||-200 °C to +1200 °C|
|Thermocouple type K||-200 °C to +1375 °C|
Select one of 4 standard signal ranges:
0 to 20 mA, 4 to 20 mA, 0 to 10 V and 0 to 5 V.
The selected input range is linearly mapped to the output range. On the rising curve the measuring range begin corresponds to 0/4 mA or 0 V and the measuring range end corresponds to 20 mA or 5/10 V. The falling curve turns the course. The transfer function of the transmitter is shown graphically in DRAGOset.
The error signalisation defines whether errors will be left the output range. In this case, the output signal jumps to 22 mA, 5.5 V or 11 V, depending on the output selection.
Alternatively, the setting 0 mA, 4 mA or 0 V be chosen to signal the error, the output will remain in the range of measured values. This can be useful for example at a PLC input, that cannot handle signals out of range, the detection of the error then must be in the PLC.
|over range||in range|
|output type||output range||error signal||output range||error signal|
|0 to 20 mA||0.0 to 20.5 mA||22.0 mA||0.0 to 20.0 mA||0.0 mA|
|4 to 20 mA||3.8 to 20.5 mA||22.0 mA||4.0 to 20.0 mA||4.0 mA|
|0 to 10 V||0.0 to 10.25 V||11.0 V||0.0 to 10.0 V||0.0 V|
|0 to 5 V||0.0 to 5.125 V||5.5 V||0.0 to 5.0 V||0.0 V|
DRAGOset calculates from your inputs the correct DIP switch programming. This image can also be found in the PDF documentation and the printout again.
If DRAGOset is not connected with the cable to the transmitter, you can transfer the switch settings manually to the DIP switches of the transmitter.
With the menu item "Device | Diagnostics ..." call to a diagnostic screen. In this window, you get an overview of the current measured values and messages of the transmitter.
This requires an online connection to the transmitter.
Depending on the selected sensor type and compensation changes the wiring of the transmitter. On this graph, you can see how the transmitter should be connected in this mode. If you move your mouse over the image of the transmitter, the terminal numbers are displayed.
DRAGOset shows the transfer function of the transmitter at the specified settings. You can see exactly the output value corresponding to the input signals.
If you move your mouse over the curve, the input and output value is displayed depending on the position of the mouse pointer.