Vacuum Sampler

Efcon Vacuum Samplers are equipped with reliable standard hardware and electronics. The complete design is aimed at long-term sampling with minimal downtime. The 8-metre pump unit, specially developed by Efcon, is easy to maintain and creates a constant vacuum in the flask.

Efcon has 3 different sampling systems using this sampling method. Depending on the application, we have a Carrybox, Efconomy and Industrial sampling cabinet in our range that are EN 16479, EN ISO 5667 and NEN 6600-1 certified:

Construction with 1 sample head with glass or non-breakable polycarbonate chamber
1 Pump module with 3 diaphragm pumps, 24 VDC 8m suction height, see opposite
1 bidirectional 24 VDC pincher
1 double-contact 24 VDC level detector with alarm output

1. Before use, the pump will first blow the pipe clean and clear it of old medium. The pinch valve is fully closed during this operation, creating excess pressure.
2. The pump will then start priming, creating a vacuum in the sample flask. The medium passes through the pipe and will be collected in the sampling flask.
3. The level sensors detect the sample and dose the volume into the sample flask. The excess medium will disappear through the suction line.
4. After this, the pinch will open and the remaining medium can be stored in the containers.

Contact level indicator operates at a minimum conductivity of wastewater of 50 µs. When the conductivity drops too deep
(in the case of demi or pure rainwater), an optional capacity switch can be added to create a fully functioning level detection system.