What is a good reasonable priced accurate manometer to measure my barometric damper?
My furnace should be 0.025 and my flue should be -0.02. Looking at the gauges for sale i see accuracy (read
inaccuracy) ratings that would make readings in the range that I need almost useless. Exp:
0.3% of full scale 55.00wc (0.003x55=0.165) Does that mean that a reading of 0.02 could be off by as much as
0.165?
+/-0.3% of full scale 83.02 InH2O NKTECH NK-L3 (0.003x83.02=0.249)
±1.5% of full scale 4.00wc Dwyer 478A-0 (0.15x4=0.6)
Am I doing something wrong here?
tks,
pa
My furnace should be 0.025 and my flue should be -0.02. Looking at the gauges for sale i see accuracy (read
inaccuracy) ratings that would make readings in the range that I need almost useless. Exp:
0.3% of full scale 55.00wc (0.003x55=0.165) Does that mean that a reading of 0.02 could be off by as much as
0.165?
+/-0.3% of full scale 83.02 InH2O NKTECH NK-L3 (0.003x83.02=0.249)
±1.5% of full scale 4.00wc Dwyer 478A-0 (0.15x4=0.6)
Am I doing something wrong here?
tks,
pa