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1.7 Operation verification
The Model 450 Monitor is now ready for operation.
1. Read Sections 1.3 and all of Section 4 of the manual to understand the
Monitor's operation.
2. Turn on the power by pressing the on/off switch on the front panel (see Figure
2.1). The display should turn on and green (sample) status LED should be
energized. The yellow "fault" light may also be on until the flows,
temperatures and voltages are within operating limits. Clear the fault
messages.
3. Sample Flow - Adjust to 1-2.5 L/min using needle valve on flowmeter.
4. After a 20 minute warm-up, review the TEST function values in the front
panel display by pushing the keyboard button labeled TST
>. Not every
TEST function is a diagnostic of correct monitor operation, therefore TEST
functions not covered below can be ignored for now.
5. O3 REF, O3 MEAS - TEST function values should be between 4200 mV and
4700 mV.
6. Pressure - 29 to 30 Inches-Mercury-Absolute at sea level. Other values will
be displayed depending on altitude of monitor.
7. Sample Temp - 20 -50
o
C
8. Box Temp - Ambient +10
o
C
9. If the TEST functions are within the limits given above the instrument should
function correctly. If there is a problem please read the manual and check
your set-up.
P/N 02395D1 Teledyne API Model 450 O
3
Monitor Instruction Manual - Page 27