Instrument Description | Teledyne API Ultrafine Particle Monitor - Model 651 |
Status Messages
Status messages display at the top of the home screen. The indicators are as follows:
Status Indicator | Description |
Low Water | Water level is low |
Warmup | Instrument is warming up |
Laser Fault | Laser fault |
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Inlet Pressure Fault | Inlet pressure is too high/low |
Vacuum Fault | Vacuum pressure is too high/low |
Nozzle Fault | Plugged nozzle or wet sample flow filter |
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Absolute Pressure Fault | Barometric pressure is out of range |
Optics Temp Fault | Optics temperature is out of range |
Growth Tube Temp Fault | Growth Tube temperature is out of range |
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Conditioner Temp Fault | Conditioner temperature is out of range |
Separator Temp Fault | Water Separator temperature is out of range |
Pulse Height Fault | Low particle pulse height |
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Ready | |
| instrument is ready for use |
Note: The status messages on the
Indicator Light
The blue indicator light on the front panel flashes once for each particle detected. At particle concentrations >100 particles/cm3, the flashing becomes a continuous glow.
36 | 07506C DCN6727 |