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3. bits in the gas diagnostic flag, D table 10-3 – Campbell Scientific EC155 CO2 and H2O Closed-Path Gas Analyzer and EC100 Electronics with Optional CSAT3A 3D Sonic Anemometer User Manual

Page 49

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EC155 CO

2

and H

2

O Closed-Path Gas Analyzer

TABLE 10-3. Bits in the Gas Diagnostic Flag

bit hex value decimal

Name

Function

0

0x1

1

Bad Data

Data are suspect (there is

an active diagnostic flag)

1

0x2

2

Sys Fault

General system fault

2

0x4

4

Sys Startup

Gas analyzer is starting up

3

0x8

8

Motor Speed

Motor speed outside of

limits

4

0x10

16

TEC Temp

TEC temperature exceeds

limits

5

0x20

32

Light Power

Source power exceeds

limits

6

0x40

64

Light Temp

Invalid source temperature

7

0x80

128

Light I

Source current exceeds

limits

8

0x100

256

Power Off

Gas head not powered

9

0x200

512

Chan Err

Gas input data out of sync

with home pulse

10 0x400

1024

Amb Temp

Invalid ambient

temperature

11 0x800

2048

Amb Press

Invalid ambient pressure

12 0x1000

4096

CO

2

I

CO

2

I exceeds limits

13 0x2000

8192

CO

2

I

o

CO

2

I

o

exceeds limits

14 0x4000

16384

H

2

O I

H

2

O I exceeds limits

15 0x8000

32768

H

2

O I

o

H

2

O I

o

exceeds limits

16 0x10000

65536

CO

2

I

o

Var

Moving variation in CO

2

I

o

exceeds limits

17 0x20000

131072

H

2

O I

o

Var

Moving variation in H

2

O I

o

exceeds limits

18 0x40000

262144

CO

2

I

o

Ratio

CO

2

signal level too low

19 0x80000

524288

H

2

O I

o

Ratio

H

2

O signal level too low

20 0x100000 1048576 Cal Mem Err

Gas head calibration

signature error

21

0x200000

2097152

Heater Control Heater control error

22

0x400000

4194304

Diff Pressure

Differential pressure

exceeds limits

39