Instrument Operation

Teledyne API Ultrafine Particle Monitor - Model 651

The following pages contain descriptions of the SETUP options.

SAMPLE TIME

SETUP SAMPLE TIME

Select a sample time in seconds for the on-screen graph. Press the SAMPLE TIME button to scroll through the settings. Sample Time choices are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60 seconds. If you intend to gather data for long periods of time, use the longer sample times to reduce the number of data files.

VACUUM

SETUP VACUUM

Select one of the following vacuum settings:

Vacuum Setting

Description

ON AFTER

Turns on the vacuum. Message displays during

WARMUP

the warm-up process.

ON

Turns on the vacuum valve. Message only

 

displays when warm-up is complete.

OFF

Turns off the vacuum valve.

Note: You can toggle between the ON and OFF settings.

INLET MODE

SETUP INLET MODE

Set the inlet flow in liters per minute. Press the INLET MODE button to scroll through the settings. Inlet flow choices are:

Inlet Mode Setting

Description

3 L/min

This setting will pull the total flow through the inlet:

 

including sample flow (0.12 lpm), transport flow

 

(0.48 lpm), and auxiliary flow (2.4 lpm), This is

 

flow during normal operation.

0.12 L/min

This setting will include sample flow (0.12 lpm)

 

only through the inlet, transport and auxiliary flows

 

are off.

0.6 L/min

This setting will include only the transport (0.48

 

lpm) and the sample flow (0.12 lpm) through the

 

inlet and the auxiliary flow is off.

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07506C DCN6727

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Teledyne 651 operation manual On After, Warmup, Off