Vacuum System - Variable -
Vacuum system with automatic volume adjustment
Like the standard Vacuum system, however, with automatic adjustment of the sample volume. This system is of interest if samples shall be taken flow- proportional with a fixed interval.
With this system it is possible to monitor changes in water quality even at low flow rates as in standard flow- proportional sampling the sampling intervals are very long.
1. Electrodes 2
2. Measuring tube
3. Electrodes 1
4. Connection for aeration
6. Pinsch Valve
7. Cleaning cap of gas drap
8. Inlet connection
Function: Vacuum system with automatic volume adjustment
1. Inoperative position
2. Pinch valve closes
3. during inlet the sample volume already will be measured in the measuring tube . Only the requested volume is droping in the vessel.
4. Pinch valve opens, allowing sample to drop into sample container