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still learning
25-06-2009, 07:17 PM
hi, everybody does anyone know where i can buy a pressure logger for 410a systems .
had a problem the other day with a unit showing hp fault
and cutting out but would restart after resetting remote.
this was happening at night as we had been there in the day with gauges on it , and it didnt do it , but come the morning it had stopped.
this was traced to a duff pcb after a lot of time, and its running fine.
if i could get a data logger to leave on the true high side i could of seen the trend , our logger at the moment only rated to 32bar i think.
and require 45bar
any ideas?

Brian_UK
25-06-2009, 11:17 PM
Something like this ?

http://www.sensorsone.co.uk/products/0/67/LEO-Record-Pressure-Data-Logger.html

still learning
27-06-2009, 03:34 PM
yes thats thing, many thanks for your time.
just need to get the boss to buy it.

ozairman
01-07-2009, 01:40 PM
If you already have a datalogger that can handle a 0-5VDC or 0-12VDC signal try and get hold of a pressure transducer out of a VRV/VRF unit. Most of them these days monitor HP and LP and their pressure transducers just feed a signal back to the controller pcb. They are available as spare parts and the tech info should be around to work out what voltage output equates to what pressure.