Transmitter approved
March 1st 2007

The second generation Eclipse 705, 2-wire Guided Wave Radar from Magnetrol is type approved to the latest European Norms for steam drums, EN 12952- 11 (water tube boilers) and EN 12953-9 (shell type boilers) as 'primary safety' and 'secondary safety' devices.

As a secondary safety device, Eclipse is said to fulfil all general control functions on the steam drum, such as controlling the hot water feed to the boiler.

In its function as a primary safety device, Eclipse operates as a safety switch and turns off the boiler in a safe way in case an emergency occurs. The number of primary and secondary safety devices on a steam drum depends on the type of boiler, the manning of the boiler (permanently manned, semi-manned or unmanned), its process pressure, capacity, etc.

Benefits claimed for the device include reliability, repeatability and an efficient process seal.

The Eclipse 705 with 7MS probe resists a process pressure of 155 bar at an equivalent temperature of 345°C in saturated steam applications. For non-steam applications, Eclipse can be used on process conditions from -196 to 430°C/full vacuum to 430 bar.

More articles from Magnetrol International N.V.: