Teledyne T100 用户手册

amount. Second, the instantaneous concentration must exceed the average in the long 
filter by a portion, or percentage, of the average in the long filter.  

If necessary, these filter lengths of these two modes may be  changed to any value 
between 1 and 1000 samples. Long sample lengths provide better signal to noise 
rejection, but poor response times. Conversely shorter filter lengths result in poor signal 
to noise rejection, but quicker response times.  

Calibration of the analyzer is performed exclusively in software. During instrument 
calibration (refer to Sections 9 and 10) the user enters expected values for zero and span 
through the front panel touch-screen control buttons and commands the instrument to 
make readings of sample gases with known concentrations of SO

2

. The readings taken 

are adjusted, linearized, and compared to the expected values as input. With this 
information the software computes values for instrument both slope and offset and stores 
these values in memory for use in calculating the SO

2

 concentration of the sample gas.  

Instrument slope and offset values recorded during the last calibration can be viewed by 
pressing the following control buttons sequence 

 SAMPLE          RANGE = 500.000 PPB      SO2 =XXX.X  
 
 < TST  TST >  CAL 

 

 

 

SETUP 

 SAMPLE            TIME = HH:MM:SS           SO2 =XXX.X 
 
 < TST  TST >  CAL 

 

 

 

SETUP 

 SAMPLE                PMT TEMP=0.0C          SO2 =XXX.X 
 
 < TST  TST >  CAL 

 

 

 

SETUP 

SAMPLE                BOX TEMP=0.0C           SO2 =XXX.X 
 
 < TST  TST >  CAL 

 

 

 

SETUP 

 SAMPLE           RCELL TEMP=0.0C           SO2 =XXX.X 
              
 < TST  TST >  CAL 

 

 

 

SETUP 

SAMPLE 

      HVPS 553 VOLTS        SO2 =XXX.X 

 
 < TST  TST >  CAL 

 

 

 

SETUP 

 SAMPLE              OFFSET=XX.X MV          SO2 =XXX.X 
              
 < TST  TST >  CAL 

 

 

 

SETUP 

SAMPLE 

        SLOPE=XXX              SO2 =XXX.X 

 
 < TST  TST >  CAL 

 

 

 

SETUP 

 

As explained in the principles of operation, changes in temperature can significantly 
affect the amount of fluoresced UV light generated in the instruments sample chamber. 
To negate this effect the T100 maintains the sample gas at a stable, raised temperature. 

Pressure changes can also have a noticeable, if more subtle, effect on the SO

2

 

concentration calculation. To account for this, the T100 software includes a feature 
which allows the instrument to compensation of the SO

2

 calculations based on changes 

in ambient pressure.  

06807C DCN6650