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Recent content by scenes

  1. scenes

    Exi vs Exd transmitters in oil/gas industry

    One point to pay attention is the whole cost of the implementation. You can't only consider the prices of the equipment; you need to analyze the whole project. Usually, you need considerable structure, and you spend more time to implement an Ex d than an Ex i project. The cost per hour of...
  2. scenes

    active signal vs. passive signal

    Well, it's a good question maybe there are more people with a similar issue. When we talk about a passive signal, it means that the signal from the field device needs an external supply to close the loop and the control system can read the signal from the field device. For instance, when you...
  3. scenes

    Level Measurement problem,

    Hey, You need to understand what the device is seeing into your tank; maybe you have interference in the tank creating false echoes where you have a problem with the level measurement. For that, if you have the display from VEGA with Bluetooth communication you can through the app take a look...
  4. scenes

    RS-485 Modbus RTU to Wirelesshart

    Hey, Sorry but it's not possible. You will need to use standard wireless communication with a proprietary protocol; you have a bunch of solutions like that on the market. These options will also have a mesh network, but the protocol is proprietary most of the time, but it can read and transfer...
  5. scenes

    Using Rosemount 644 TT

    Hi, The 644 from Emerson Automation Solutions is a temperature transmitter, and this is a sort of technical solution. First off, when you need to convert 4-20mA to millivolts, you can use a proper converter, and you can find a bunch of them in the market DIN mounted installation. Second off...
  6. scenes

    2-wire vs. loop-powered device

    Based on the document you shared with us, the 2 wires you have the power supply come from an external power unit, the mentioned the model M2D or M2DY. These external power supply unit will be connected to your signal transmitter to provide the power to the input signal. Now, talking about the...
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