WITT PA 7.0 gas analyser

The WITT PA 7.0 gas analyser is suitable for use in the food industry, weld shielding gas analysis or in any process requiring critical limits of O₂ and CO₂. In addition to continuous inline gas mix monitoring, a random sample can be taken with a sampling needle, such as for checking food packages in a protected atmosphere.

A further advantage is its very low measuring gas requirement. Depending on the application, WITT says that as little as 3 mL of gas is sufficient for a reliable analysis. The measuring cells (chemical, zirconium and infrared) work from zero to 100%. The analyser includes a redesigned hygienic stainless steel housing that meets the demands of industrial applications.

If an individually set limit value is reached, the PA will raise the alarm or trip a volt-free contact to interrupt a supply of gas, for example. The flow is continuously monitored and the pump capacity is varied to meet the required demand, so the PA 7.0 even detects a needle blockage and signals an alarm.

Measurement results can be assigned according to user and product. A data memory stores 500 measurements. Using data export and the purpose-designed OBCC software, the user can document all measurement results in digital form and analyse them.

The gas analyser needs little maintenance and can be calibrated with a simple two-point procedure. With its small dimensions and light weight, space can be found for the compact upright appliance in all places where work is carried out with gas mixtures.