The Volumetric controller utilizes a bell mouth type venturi restrictor to accurately measure the extract volume of the fume cupboard and provides VAV control based on either sash position, programmable fixed set points or 0-10VDC analogue input.
The controller can also operate using 3rd party orifice plates or other manufactured restrictor devices.
Safety and compliance
Protecting your staff from potentially hazardous fumes and substances and ensuring you stay compliant.
Energy and cost savings
The TEL Volumetric Controller reduces the volume of air taken from the fume cupboard when it is not being used, reducing energy usage by up to 85%, considerably reducing costs.
Carbon emissions reduced
With many organisations having to meet carbon reduction targets, TEL’s Volumetric controller reduces energy wastage, ensuring reductions in carbon emissions.
Choose the right model for your needs
VAV (Sash Position Control)
The controller operates using a floating set point dependent on sash position.
3 Term control (Pushbutton Control)
The controller operates using fixed volume set points (Vmax/Vnorm/Vmin) independent of sash position.
VAV Box control (Remote 0-10VDC Input control)
The controller operates from an analogue input voltage to a volume range between Vmin and Vmax parameter values.
CAV Box control (Fixed Volume set point)
The controller operates to a fixed volume set point to give Constant Volume operation.