EDN.817: Industrial Pressure Transmitter with Aluminum Housing and Bright LCD Display

– LCD with white backlight & bar graph support

– Assembled with MDI (chemical diaphragm seal)

– Wetted parts made of stainless steel (other materials available upon request)

– Housing made of aluminum with powder coating

– Accuracy: better than 0.5%

– Ex d IIC T6 certification expected by 2025

 

The EDN.817 series pressure transmitter features a durable aluminum housing with powder coating and a bright LCD display with white backlight. It is designed for use with the MDI series chemical diaphragm seals, ensuring excellent performance across a wide range of industrial applications.

 

Depending on the installation environment, optional wetted materials can be selected to withstand harsh conditions such as acidic or toxic gases, corrosion, or other external factors. These material options make the transmitter suitable for petrochemical and refinery plants, food and beverage industries, medical, pharmaceutical, and biotechnology applications.

 

The MDI model, designed as a chemical seal, contains a diaphragm built into the center of the flange. Its wetted parts can be manufactured using various special materials according to customer requirements, such as:

■ Teflon coating

■ Hastelloy C alloy

■ Titanium

■ Tantalum

 

The sensing and electronic modules of the EDN.817 series are designed and developed under strict quality standards, incorporating advanced protection technologies against noise, burst, insulation failure, and surge. Through the comprehensive system design, quality management, and full inspection process by DAHO Technical Research Center, the transmitter ensures high reliability and delivers stable analog and digital communication signals.

 

The EDN.817 series offers two functional options, allowing users to select according to their application requirements:

■ RS485 communication

■ 2-channel relays (2 switch outputs)

 

During development, the EDN.817 underwent more than ten types of comparative performance and durability tests against domestic and international products. It also passed EMC and EMI performance tests, proving its top-level quality and reliability. As a result, the EDN.817 maintains stable measurement performance even under high temperatures, strong electrical noise, or burst environments, making it suitable for a wide range of harsh industrial conditions.

 

Typical applications include:

■ Refinery and petrochemical plants

■ Food, medical, and pharmaceutical industries

■ Heavy industry and shipbuilding

■ General process industries

■ Hydraulic and pneumatic systems

 

Currently, the Explosion-Proof Certification Ex d IIC T6 is under application to the Korea Occupational Safety and Health Agency (KOSHA), with certification expected to be completed by December 2025 after evaluation and testing.

 

Pressure ranges	0…1.6 bar to 0…250 bar
Accuracy	± 0.5% F.S
Electrical connection	Frameproof cable gland M12 plug
Signal output	4...20 mA, 2 wire-system 0…10V, 3 wire-system 0…5V, 3 wire-system 1…5 V, 3 wire-system 0.5…4.5V, 3-wire system
Operating temperature	-20…+80 ℃ / standard -40…+125℃ / option