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Transmitter EC22 O Display

Product catalog summary

Overview: The EC22 O Transmitter is designed for accurate oxygen monitoring in environments containing helium, a challenge due to helium's low gas density. It is part of the 22 series of transmitters by GfG Gesellschaft für Gerätebau mbH, which includes devices for various gases and measuring ranges.

Specifications: The EC22 O uses an electrochemical (EC) measuring principle with a range of 0 to 35 vol%. It features a partial pressure sensor, ensuring reliable oxygen monitoring even in helium-rich environments. The sensor has a lifespan of 5 years, with a response time of t90 ≤ 5 seconds. It operates within a temperature range of 0 to +50 °C and humidity levels of 0 to 90% relative humidity. The device supports both analog (0.2-1 mA or 4-20 mA) and digital (RS-485) output signals.

Design and Protection: The transmitter is housed in a compact, splash water and dust-protected (IP54) casing suitable for wall mounting. It includes a 2.2-inch color backlit display, three push buttons for operation, and two status LEDs.

Communication and Compatibility: The EC22 O can transmit signals to GfG gas measuring computers or higher-level process control systems. It is compatible with both analog and digital communication standards.

Additional Features: The device includes smart electronic systems for temperature compensation, facilitating easy operation and maintenance. It is part of a broader range of transmitters in the 22 series, which includes models for combustible gases, refrigerants, toxic gases, and CO₂ monitoring.

Technical Data: The transmitter dimensions are 96 x 153 x 49 mm, with a weight ranging from 310 to 390 g. It requires a power supply of 12 to 30 V DC.

Catalog excerpts

Fixed Gas Detection Systems EC22 O Transmitter with display Accurate O₂ measurements even in helium-containing environments

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EC22 O Transmitter with display Accurate O2 measurements even in helium-containing environments Sensor readings of different sensor technologies Oxygen monitoring is part of the basic safety concept in many manufacturing processes. Many industries, such as semiconductor manufacturing or laboratory and research facilities, also use helium, because it is both a good electrical insulator and chemically extremely inert. However, timely detection of oxygen deficiency is made more difficult when a very light gas such as helium escapes, since its gas density is only 0.14 (air = 1). The EC22 O with partial...

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Transmitter EC22 O Display

Transmitter EC22 O Display

Catalog excerpts

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