Teledyne API Ultrafine Particle Monitor - Model 651

Maintenance, Service, and Troubleshooting

Figure 9-7

Model 651 Flow Schematic

The instructions below describe the procedure for checking the aerosol sample flow. Use a similar procedure to check the auxiliary and transport flows.

To check the aerosol flow, follow these instructions:

1.With the instrument powered on, press SETUP on the Home screen, then press INLET FLOW.

2.Select 0.12 L/min as the setting. This value is nominal for the aerosol sample flow. Your actual inlet flow value may be slightly different, and depends on characteristics of the critical sample flow orifice. The actual flow for your orifice is displayed as an

07506C DCN6727

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Teledyne operation manual Model 651 Flow Schematic