COSA Xentaur Xentaur HDT - Manual (Page 37)

HDT User’s Manual
page 30
Relationship of 4-20mA output and instrument reading in ppmV or LBS
Instrument reading in ppmV
Instrument reading in LBS of H2O / million cubic feet
10
100
1000
10000
4.1mA
5mA
0.1
1
1
0
100
1000
12mA
8mA
20mA
4.5mA
4/20 mA output
0.56 LBS = -60˚C = 10.66 ppmV
1.97 LBS = -50˚C = 38.83 ppmV
49.3 LBS = -20˚C = 1019.3 ppmV
289.1 LBS = 0˚C = 6063.8 ppmV
Lo
w A
O
range = -100˚C High A
O
range = +20˚C
Lo
w A
O
range = -65.5˚C
High A
O
range = -38.5˚C