Series 1831 low differential pressure switch now has a DPDT switch output.
October 21, 2010 - Dwyer Instruments released its Series 1831 low differential pressure switch with a DPDT switch output. The 1831 combines small size with 2% repeatability. Absolutely no power is required to operate the DPDT switch. Set point adjustment on the switch is easily accessible for modifying the set point. The 1831 is a manual reset that activates on an increase in pressure.
Ranges as low as 2.5 in w.c. all the way to 23 in w.c. are available from stock.
The unique non-powered design eliminates many of the common problems associated with existing switches in high duct static cutout installations. A mounting bracket is included which simplifies installation.