Crowcon - Single Point Sampling System

Crowcon - Single Point Sampling System

A single point sample system generally uses a main operated pump to draw a sample, up to 1km away. The sample enters the system via a sample valve and is filtered to remove contaminated particles/containments and water before being passed as a controlled flow to the detector heads (between one and four detectors).

The gas samples are analysed, and low and high alarm conditions are reported. A programmable relay, housed in the sample system cabinet, will control the sampling and purging sequence. The programmable relay offers the facility for visual integration of the sample system condition via an LCD display mounted on the front of the enclosure. The display shows operational parameters such as sampling, purging and system fault fail.

A single point system is effective when there is a requirement for CH4 fuel leak monitoring on heaters in paint drying systems. A simple, open-plate system using a pellistor or IR sensor is ideal for this application as it is a high temperature application which needs stainless steel sample pipes and potentially, cooling coils. Water vapour is also present; evaporated from water-based paints, so water filtration is essential. Systems have also been supplied for monitoring flammable risk from paint solvent vapours.

Key Features

• Gas sensors: 1 – 4
• Sample lines: 1
• Ingress protection: Indoor use only
• Max. line length: 1Km (0.62 mile)
• Sensor type: Electrochemical, Pellistor, IR, TC
• Operating voltage: 110V or 230Vac
• Approvals: Safe area use only

Sampling Systems can be engineered to suit any application, please Contact Us for prices and system specifications.