■ Series EDR.321, 0.5…4.5V/5V, Ratio-metric Output – Product Overview

Series EDR.321 is a pressure transmitter designed with a ratio-metric analog output signal of 0.5…4.5V (powered by 5V). Its analog output design technology requires an exceptionally high level of engineering compared to conventional current (4…20mA) or voltage (0…10V, 0…5V, 1…5V) output systems, making it one of the most technically advanced analog output architectures available.

Series EDR.321 is ideal for applications where power supply stability is challenging—such as in automotive or mobile environments where battery performance often fluctuates. The device ensures that pressure values are measured accurately in proportion to supply voltage changes, delivering reliable analog output signals even under unstable power conditions. This level of output reliability and system durability is crucial in industrial fields demanding high signal integrity and noise resistance.

In system design, sensor characteristics and digital compensation must be mathematically modeled and applied. With this in mind, series EDR.321 transmitters are extensively compensated for both pressure and temperature. Each unit is calibrated and verified under the same testing setup, enabling seamless integration into various system designs. Thanks to its modular design, flexible electronics, and configurable PCB options, series EDR.321 can be adapted to meet diverse industrial requirements. Dahotronic supports a vertically integrated manufacturing process that ensures high flexibility and customization, even for large-scale production.

Dahotronic can respond swiftly to customer demands with various standard options for electrical connectors and pressure fittings. This flexibility ensures compatibility with a wide range of applications and environments.

Series EDR.321 is engineered for next-generation pressure control systems and delivers high stability even under extreme conditions such as electrical surges, mechanical vibration, and electromagnetic noise.

Typical Applications:

• Fuel cell vehicle systems
• Secondary battery (ESS) systems
• Water treatment and control systems
• Refrigeration and HVAC systems
• Compressor systems
• Pump systems
• Hydraulic and pneumatic systems