Teledyne API Ultrafine Particle Monitor - Model 651

Maintenance, Service, and Troubleshooting

S t a t u s M e s s a g e s

Status messages display at the top of the Home screen. The messages are described below.

Status Message

Low Water

Warmup

Laser Fault

Inlet Pressure Fault

Vacuum Fault

Nozzle Fault

Absolute Pressure Fault

Optics Temp Fault

Growth Tube Temp Fault

Conditioner Temp Fault

Separator Temp Fault

Pulse Height Fault

Ready

Fault

Indicator Description

Water level is low Instrument is warming up Laser malfunction

Inlet pressure is too high/low Vacuum pressure is too high/low Flow obstruction exists

Barometric pressure is outside the operating range

Optics temperature is out of range Growth Tube temperature is out of range

Conditioner temperature is out of range

Separator temperature is out of range Low pulse height

Warm-up process has finished and the Model 651 is ready for use.

Unspecified fault (not covered by any of the specific indicators)

Note: The messages are a warning that there is a problem with the instrument, but only one message can display at a time. Check the Status screen for more details about potential problems.

07506C DCN6727

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Teledyne 651 operation manual A t u s M e s s a g e s