Appendix c: relationship of instrument reading and – COSA Xentaur Xentaur XPDM User 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