Calibration Procedure

Teledyne API Model T201 NH3 Analyzer Operator Manual

Table 2-3. NO Calibration Procedure – NO Gas through the SAMPLE Port

Important: Each channel (TNx and NOx) must be Spanned individually

Step No.

Action

 

Comment

 

 

 

 

1.

Press CAL

The T201 enters the calibrate mode from sample

 

 

mode. Confirm that excess NO gas is flowing past the

 

 

sample port.

 

2.

Channel Selection

Press TNX or NOx then Press ENTR.

3.

Range Selection

Press LOW or HIGH range then Press ENTR.

 

 

Always calibrate the LOW range, Section 3.0below.

4.

Press CONC

If NOx was chosen previously then the following will

 

 

be displayed:

 

 

 

NOx

NO CONV

Exit

 

 

Press NOx, If you are delivering 450 PPB of NO then

 

 

Enter 450 PPB, Press ENTR.

 

 

 

Repeat the same steps for NO.

 

 

 

Press EXIT

 

 

 

Once stability has been achieved,

 

 

 

Press SPAN, ENTR, EXIT

 

 

 

NOTE: Both NOx and NO should read 450 PPB.

 

 

____________________________________________

 

 

If TNx was chosen previously then the following will

 

 

be displayed:

 

 

 

TNx

CONV

Exit

 

 

Press TNx enter 450 PPB, Press ENTR

 

 

Press EXIT

 

 

 

Once stability has been achieved,

 

 

 

Press SPAN, ENTR, EXIT

 

 

 

TNx should read 450 PPB.

 

 

 

 

5.

Check Slopes

The slopes should be close to 1.0 +/- 0.300

 

 

 

 

 

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Teledyne T201 manual No Conv