Continuous monitoring
The emission monitor model GA35 has been specially designed for detecting the SF₆ gas concentration in enclosed rooms.

If the SF₆ gas is processed or stored, harmful quantities of SF₆ gas can escape due to improper operation or leakages. The model GA35 makes it possible to control areas of up to 250 m2.

SF₆ gas is five times heavier than air, therefore breathing air can be displaced in case of higher concentrations of SF₆ gas so that there is a risk of suffocation.

The GA35 continually controls the ambient air by means of a non-dispersive infrared sensor. Usually, samples are permanently taken near the gas tanks or gas-insulated switchgear on which large quantities of SF₆ gas can escape within a short time.

Applications

• Monitoring of the concentration of SF₆ gas in the ambient air for guaranteeing operational safety in enclosed spaces

Special Features

• Responds only to SF₆ gas and is not sensitive to humidity and the usual volatile organic compounds (VOC)
• Fast response time
• Continuous measurement
• Easy integration into distributed control system thanks to 4 ... 20 mA output
• Settings protected by password

Reliable warning
Loud alarm sound immediately warns against hazardous gas concentrations in the air. As the SF₆ gas sinks due to the high molecular weight compared to the ambient air, it is useful to mount the sampling box near the ground.

Particle filters in the sampling box and in the hose connection ensure that the measuring result is not falsified by impurities. The flow control of the GA35 sounds a failure alarm in case of a pump failure or if the supply line is clogged in order to ensure reliable operation.