Description
The Testo 6743 Dew Point Transmitter is designed to measure trace humidity in compressed air, air, or gases, ensuring that excessive humidity levels do not cause damage or compromise product quality. It features a Testo polymer humidity sensor known for its high accuracy and long-term stability, making it a reliable tool for monitoring and controlling humidity in various industrial applications.
Key Features of the Testo 6743 Dew Point Transmitter:
- High Accuracy: The dew point transmitter utilizes the Testo polymer sensor, providing precise humidity measurements with a high degree of accuracy, up to ±1 K at 0 °Ctd (+32 °Ftd). This ensures reliable monitoring of trace humidity levels.
- Scalable Analog Output: The measured values are converted into a standardized electrical signal, allowing for easy integration into control systems. The analog output can be scaled as needed, ranging from 4 to 20 mA, providing flexibility in signal transmission.
- Optional Alarm Plug: The transmitter offers an optional alarm plug with two integrated switching outputs. This allows for additional monitoring capabilities, such as MAX monitoring, where the switching contacts can be used to trigger alarms or control other processes based on specific thresholds.
- Practical Design: The Testo 6743 features a compact and user-friendly design. The housing can be rotated by 350°, enabling optimal alignment of the display for convenient reading and operation. The transmitter also includes a display with an operating menu for on-site access to readings and settings.
Applications and Benefits:
The Testo 6743 Dew Point Transmitter finds applications in various industrial settings where compressed air, air, or gases are used. It helps prevent damage and reduce costs associated with excessive humidity, ensuring product quality and system efficiency.
- Compressed Air and Dry Air Systems: The transmitter is particularly useful in monitoring trace humidity in compressed air and dry air systems, including refrigeration dryers and membrane dryers. By maintaining optimal humidity levels, it prevents damage to equipment and ensures the quality of end products.
- Adsorption Dryers: In adsorption dryers, accurate humidity control is crucial to reduce the consumption of regenerated air. The dew point transmitter enables precise chamber activation based on humidity levels, optimizing the use of regenerated air and minimizing unnecessary consumption.
Delivery Scope:
The Testo 6743 Dew Point Transmitter is delivered with the following components:
- Dew point transmitter with polymer humidity sensor
- Display for on-site readout
- Process connection with G½ thread
- Analog output ranging from 4 to 20 mA
- Optional alarm plug with 2 switching outputs
The inclusion of these components ensures the immediate usability and flexibility of the transmitter for your specific humidity monitoring needs.
In summary, the Testo 6743 Dew Point Transmitter provides accurate and reliable measurement of trace humidity in compressed air, air, or gases. With its high precision, scalable analog output, and optional alarm plug, it enables effective monitoring and control of humidity levels, preventing damage and optimizing system performance.




