General Information
The BioTector vacuum sampling system is designed to bring water over a distance of 40 meters with a maximum lift of 6 meters, and to present the sample to the BioTector TOC analyzer, or alternative water analyzer, at ambient pressure.
Functions
1. The vacuum sampler pump generates a vacuum in the sample container which draws the sample up into the sample container.
2. A built-in conductivity probe confirms that the sample has filled the container. The vacuum pump is stopped, a pinch valve closes to seal the sample in the container and vacuum valves open to restore the pressure in the sample container to ambient. If the sample does not make contact with the conductivity probe within a pre-set time, a fault condition is triggered.
3. The analyzer takes a sample from the container. If necessary, a short sedimentation period (to allow sand and hard particles to settle) may be programmed before the analyzer takes its sample.
4. When the sample has been taken, the pinch valve opens. The vacuum pump, through a series of valves, generates pressure in the sample container, which forces the sample from the container back through the sample line.
5. The cycle then repeats.
