COSA Xentaur Xentaur XPDM - Manual (Page 22)

page 19
Appendix C: Relationship of Instrument Reading and 4-20mA output
when lbs of H
2
0/million standard cft or ppmv engineering units are
selected.
Instrument reading in ppmV
Instrument reading in LBS of H2O / million standard cubic feet
0 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 22000
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
0 100 200 300 400 500 600 700 800 900 1000 1100
XTR100
4/20 mA output
Instrument reading in ppmV
Instrument reading in LBS of H2O / million cubic feet
10 100 1000 10000
4.1mA
5mA
0.1 1 10 100 1000
12mA
8mA
20mA
4.5mA
4/20 mA output
XTR100
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