Teledyne t320u Manuale Utente

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Setup Menu 
Teledyne API – Model T300/T300M CO Analyzer 
138 
5.9.7. FLOW CALIBRATION 
The flow calibration allows the user to adjust the values of the sample flow rates as they 
are displayed on the front panel and reported through COMM ports to match the actual 
flow rate measured at the sample inlet.  This does not change the hardware measurement 
of the flow sensors, only the software-calculated values. For details see Section 9.6.3. 
5.9.8. TEST CHAN OUTPUT 
When activated, output channel A4 can be used in the standard configuration to report 
one of the test functions viewable from the SAMPLE mode display. (See also Section 
 
5.9.8.1. SELECTING A TEST CHANNEL FUNCTION FOR OUTPUT A4 
The test functions available to be reported are listed in Table 5-9: 
Table 5-9:  Test Channels Functions available on the T300/T300M’s Analog Output 
TEST CHANNEL 
DESCRIPTION 
ZERO 
FULL SCALE 
*
 
NONE 
TEST CHANNEL IS TURNED OFF. 
CO MEASURE 
The demodulated, peak IR detector output 
during the measure portion of the GFC Wheel 
cycle. 
0 mV 
5000 mV 
CO REFERENCE 
The demodulated, peak IR detector output 
during the reference portion of the GFC 
Wheel cycle. 
0 mV 
5000 mV 
SAMPLE PRESS
URE
 
The absolute pressure of the Sample gas as 
measured by a pressure sensor located inside 
the sample chamber. 
0 "Hg 
40 "Hg 
SAMPLE FLOW 
Sample mass flow rate as measured by the 
flow rate sensor in the sample gas stream. 
0 cm
3
/m 1000 
cm 
3
/m 
SAMPLE TEMP 
The temperature of the gas inside the sample 
chamber. 
0
C 70C 
BENCH TEMP 
Optical bench temperature.   
0
C 70C 
WHEEL TEMP 
GFC Wheel temperature.   
0
C 70C 
O
2
 CELL TEMP
1
 
The current temperature of the O
2
 sensor 
measurement cell.
 
70
C 
CHASSIS TEMP 
The temperature inside the analyzer chassis. 
0
C 70C 
PHT DRIVE 
The drive voltage being supplied to the 
thermoelectric coolers of the IR photo-
detector by the Sync/Demod Board. 
0 mV 
5000 mV 
Maximum test signal value at full scale of test channel output. 
1
  When option installed. 
Once a function is selected, the instrument not only begins to output a signal on the 
analog output, but also adds TEST to the list of test functions viewable via the front 
panel display.   
06864B DCN6314