DILO 3-037-R002

Moisture is the most important criteria for the determination of the gas quality. This device has been designed specifically for SF₆ moisture measurements. It shows a higher resistance against contamination and SF₆ decomposition products than conventional moisture sensors and even minimizes the usual long-time drift.

The integrated electronic flow meter supports the minimization of the gas sample quantity and works independently of its position, which is the optimum for gas sampling from a circuit breaker. Pressure and temperature influences on the measuring result can be excluded. It is a reliable, indispensible instrument for SF₆ gas handling.

The 3-037-R002 moisture measuring device was designed from the ground up, to be used on arced SF6 . Unlike conventional multigas hygrometers, the 3-037 is specifically calibrated for the unique characteristics (i.e. densities, molecular weights, and acidity) of faulted SF₆ . Not only is the device consistently more accurate and reliable, but the typical long-term drift (and subsequent need for factory recalibration) associated with non gas-specific devices is all but eliminated.

The exclusive DILO sensor measures SF6 at atmospheric pressure which removes pressure and temperature variables from moisture readings. Additionally, the electronic flow meter not only reduces the sample to a trickle, but the orientation of the device is no longer relevant – making the 3-037 far more suitable for on-site testing. All readings are displayed in parts per million by volume (PPMv).