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Teledyne API Model 465L O
3
Monitor Operation Manual
05509F DCN6409 47
Signal Name Rear Panel Label Function
XRELAY 11 STRM 4 – 2 STREAM 4 HI ALARM
XRELAY 12 STRM 4 - 3 STREAM 4 HI-HI ALARM
XRELAY 13 STRM 5 - 1 STREAM 5 ACTIVE
XRELAY 14 STRM 5 – 2 STREAM 5 HI ALARM
XRELAY 15 STRM 5 - 3 STREAM 5 HI-HI ALARM
XRELAY 16 STRM 6 - 1 STREAM 6 ACTIVE
XRELAY 17 STRM 6 – 2 STREAM 6 HI ALARM
XRELAY 18 STRM 6 - 3 STREAM 6 HI-HI ALARM
XVALVE 1 N/A STREAM 1 INPUT VALVE
XVALVE 2 N/A STREAM 2 INPUT VALVE
XVALVE 3 N/A STREAM 3 INPUT VALVE
XVALVE 4 N/A STREAM 4 INPUT VALVE
XVALVE 5 N/A STREAM 5 INPUT VALVE
XVALVE 6 N/A STREAM 6 INPUT VALVE
7.2.3.3. Memory Reset
This function is currently disabled.
7.2.3.4. Zero Calibration
The zero calibration allows the instrument to calibrate its internal ozone offset factor. This
should only be done with a source of zero air connected to the “Sample In” port of the M465L.
Allow the instrument to stabilize on the zero air source before attempting to zero. This normally
takes 10-15 minutes.
When entering the Zero Calibration menu, the prompt “ENT TO CAL” appears on the display.
Simply confirm the calibration by pressing the ENT button to perform the calibration (to abort
the calibration, press and hold the CFG button to return to the previous menu level.) After
pressing ENT, the instrument will automatically exit the menu mode and return to Concentration
mode. The concentration reading should quickly go to zero. Please note that while measuring
zero air, a certain amount of noise or “dithering” of the concentration about the zero point will
occur and is normal. This noise is typically 1-3 ppb (0.001 - 0.003 ppm) in magnitude.