RTD PT100 Transmitter

This is a RTD Pt-100 Transmitter, It can Convert Thermocouple mV or RTD mV to 4-20 mA Current Transmitter. The part numbers on Circuit and silk screen may not match. But the PCB may be usable. The output is a current source and not a current sink. It goes to a 4-20mA Mux with a common ground. The Circuit RTD-Pt-100-Transmitter Circuit.

RTD Transmitter 4-20 mA

This low-cost transmitter was made to send RTD information in a 4-20mA over long distance. The 4-20mA was the input to a Analog-Mux which interfaced to a GE-Fanuc PLC system and a 486 Computer. The Analog Multiplexer Built around CD4051 was was controlled by PLC to get data from numerous channels. This reduced the cost of the System. This is ok when Real-Time Acquisition is not required. The Analog 4-20 to 4-20 Mux-Buffer circuit can be seen at Industrial Process Control Circuits.

This was done as customer budget could not afford dedicated analog input modules for every channel. There were more than 50 Inputs. The thermal inertia of system did not need a real time or fast correction.

The PNGs of PCB is 600dpi 16 color. It is to be scaled appropriately.

  • Test and Measurement World
    Covering electronics test, measurement, and inspection. TMWorld.com is a comprehensive website solely dedicated to providing information for engineers involved in electronics test and measurement across [...]
  • Capacitor Temperature Monitor
    When placing sensors in high pressure or vacuum chamber, they should be terminated by an epoxy sealed terminal block interface on the system. 4 wire [...]
  • Embedded Development Tools – CCS
    C Embedded Development Tools for Windows or Linux that support the Microchip Embedded Devices. Embedded Development Tools – CCS Shown above is the EZ Web [...]
  • Test & Measurement Instruments by delabs
    These are Instruments that Jack built. Here read Jack as me, delabs. Some were hand made, some in the form of workflow of a small [...]
  • Mouser Electronics – Electronic Components
    Mouser Electronics, Inc. is an electronic component distributor, focused on the rapid introduction of new products and technologies to electronic design engineers. Mouser.com features over [...]
  • Weller Soldering tools – Cooper Industries
    Rework/repair tools, soldering guns and irons and accessories. Desoldering Stations, Hot Air Stations, Portasol Irons/Hot Air Tools (Cordless Butane). They also have Soldering Gun Kits [...]
  • Tektronix Test and Measurement Equipment
    Tektronix Test and Measurement Equipment Tektronix electronic test, measurement and monitoring equipment. Tektronix, Inc. is a United States corporation best known for its test and [...]
  • ZiLOG – Application Specific SoC
    Founded in 1974 by Federico Faggin, the inventor of the world’s first microprocessor, ZiLOG builds semiconductor products that enable design engineers to break through the [...]
About delabs 661 Articles
delabs is a web-service for product design and development.

Be the first to comment

Leave a Reply