GDS | analisi casse di zavorra | gas infiammabili e tossici | Unità di campionamento gas Gas Sampling Systems

Gas Sampling Systems are designed to detect flammable and toxic gases in various areas of a ship, including ballast tanks, void spaces, compressor room, motor room and pump room.

A high-flow diaphragm pump carries the sample from the dangerous areas into the analyzer.

Samples are taken sequentially from a single measurement point, with a range of 0-100%L.E.L. Optionally, the system can be configured to detect hydrocarbons within a 0-100% Volume range by means of an Infrared sensor, and for the measurement of hydrogen sulphide (H2S) and/or oxygen, by means of electrochemical sensors.
 

Main functions and features:

- Sampling unit enclosed in a gas-tight panel
- Graphic operator terminal as standard control unit
- Alphanumeric operator terminal as repeater unit

- Programmable Logic Controller (PLC)
- Sampling point manual or automatic scan
- Gas value reading and alarm generation
- Two gas alarm setpoints
- Sensor(s) fault alarm
- High flow sampling pump
- Auto test at start-up
- Flow fault alarm
- Sampling lines cleaning program
- Gas sensor(s) refreshing program
- Calibration by means of disposable span gas bottles
- Wet space channels exclusion
- Individual scan time setting
- Internal monitoring sampling point
- End-of-Line cones for wet spaces
- End-of-Line cones with filter for dry spaces

Options:

- Separate sampling and control units
- Extended or special graphic operator terminal
- Event printer
- Hydrogen Sulphide (H2S) measuring
- Oxygen measuring
- Hydrocarbon volume measuring by means of infrared sensor
- Counter-pressure air on sampling lines
- Pre-suction pump to reduce total scan cycle
- Panel’s customized color
- Tailored system configuration