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

 

 

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

 

 

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

 

 

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

 

 

Ready

Warm-up process has finished and the

 

instrument is ready for use

Note: The status messages on the front-panel display either indicate that the instrument is warming up or that there is a problem with the instrument. However, only one indicator can display at a time. Check the Status screen for more details about potential problems.

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.

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07506C DCN6727

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Teledyne 651 operation manual Status Messages, Indicator Light