Span gas calibration notes:

¨The span gas setpoint of NO and NOx have to be the same value, because both components will be calibrated simultaneously!

¨You can calibrate all ranges together or each range separately with span gas. You have to set up the parameter you want in the menu "Calibration Parameters" (see chapter 5.1.2 p. 5-9).

¨If it will not be possible to calibrate all ranges with the same span gas, you have to calibrate each range separately!

¨The desired value of span gas has to be (!) a value between 10% and 110% of each end of range. Otherwise, no calibration will be running:

· Example:

 

 

 

 

 

 

End of range 1:

50 ppm

® Potential span gas setpoints:

5

–

55 ppm

End of range 2:

250 ppm

® Potential span gas setpoints:

25

–

275 ppm

End of range 3:

1000 ppm

®

Potential span gas setpoints:

100

– 1100 ppm

End of range 4:

2500 ppm

®

Potential span gas setpoints:

250

– 2750 ppm

How to calibrate:

Change to the menu "Zero/span calibration" via the menu line "Calibration...":

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CLD

 

 

 

 

 

 

 

 

 

 

 

95.0 ppm

 

 

 

 

 

 

 

 

 

 

 

 

 

Zero/span calibration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Measurement range number:

 

 

 

3

 

 

 

 

 

 

 

 

 

 

Zero gas concentration:

 

 

 

 

 

 

 

0.0 ppm

 

 

 

 

 

 

 

 

 

 

Span gas concentration:

 

 

 

 

 

 

100.0 ppm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sample flow:

 

 

 

 

 

1100 ml/min

 

 

 

 

 

 

 

 

 

Raw measurement signal:

 

 

 

521590

 

 

 

 

 

 

 

 

 

 

Measurement gas:

 

 

 

 

 

 

 

 

NOx

 

 

 

 

 

 

 

 

 

NO/NOx toggle!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Status:

 

 

 

 

 

 

 

 

 

 

 

READY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Result...

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Calibration adjustment limits:

 

 

 

 

 

Disabled

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOME

 

FACTORS

 

ZERO

 

SPAN

 

 

INFO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F1

 

 

F2

 

 

F3

 

 

F4

 

 

 

F5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1)Select the measurement range:

·Press the ENTER key or the → -key in the line "Measurement range number" to enter the parameter. Select the range you want to calibrate with the − -key or the ↓ -key and confirm it with ENTER. The zero gas concentration and the span gas concentration of the range selected will appear in the corresponding lines, automatically.

2)Select the gas component:

·Go to the line "NO/NOx toggle!" with the ↓ -key and select the gas component you want with the ENTER key or the → -key. The component selected will appear in the line "Measurement gas", automatically.

90003749(1) [NGA-e (Software CLD 2.3/MLT 3.1.X)] 04/98

NGA 2000

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