Unpacking and Setting Up the Model 651

Teledyne API Ultrafine Particle Monitor - Model 651

Using a sampling system connected directly to the aerosol inlet.

Environmental monitoring using tubing connected directly to the aerosol inlet.

I M P O R T A N T

The gauge pressure of the sampled aerosol must be within +4/-20 in. H2O pressure relative to the ambient pressure. Pressures outside of this range will result in water-handling failures.

To set up the aerosol supply, follow these instructions:

1.Decide whether you will sample from the front or the back of the instrument.

2.Place the aerosol sample inlet cap over the sample port that you will not be using.

3.Determine your sampling method. The instrument is shipped with the inlet screen assembly in place, but if it has been removed and you wish to use it, you must reconnect it to the Model 651 inlet. If you are not using the inlet screen, connect the aerosol sample line to the aerosol inlet.

Figure 2-3

Connecting the Aerosol Supply

4.If you are using the inlet screen assembly and it needs to be connected, line up the two captive screws with the corresponding holes on the front panel. The elbow tube should line up with the nozzle.

28

07506C DCN6727

Page 30
Image 30
Teledyne 651 operation manual Connecting the Aerosol Supply