Renting an anemometer

[dpmiller]

Another vote for hot wire here.

In a past life I installed and service fume cupboards and BSCs. Recirc (carbon filtered) FCs run at a very low airflow and it's pretty critical for containment. So we needed accuracy and repeatability down to and under 0.3m/s. Rotary vane anemometers with suitable spec came from Airflow Developments (4" rotor) and were pricey but back then (25 years back now) hot wires were ten times the price.

 

Now? what FC work I still do, I use a Testo 405 like @JSHarris has. They were a real game changer when introduced. Heartily recommended!

[Auchlossen]

My bid to set up a cooperative purchase was gazumped by a new scheme for tool loan/hire on another thread

http://forum.buildhub.org.uk/ipb/forum/167-tool-loan/

So I shall withdraw my co-op proposal above, and I shall seek to hire anenometer.

And I would encourage those above who expressed interest to do likewise.

Sorry about delay in progressing this, my fibre went down to a record breaking zero for a further few days! Oh the joys.