Teledyne API Ultrafine Particle Monitor - Model 651

 

Maintenance, Service, and Troubleshooting

 

 

 

 

 

 

 

Problem

Cause

Suggestions

 

 

Home screen displays Inlet

There is an obstruction in the

1.

Check that there are no kinks in the tubing

 

 

Pressure Fault. Status

aerosol or Model 651 inlet.

 

 

 

upstream of the inlet.

 

 

screen displays a low inlet

 

 

 

 

 

2.

Check the inlet screen assembly for obstructions.

 

 

pressure reading (in red).

 

 

 

 

3.

Remove the inlet screen assembly.

 

 

 

 

 

 

 

 

4.

Remove the elbow joint.

 

5. Unscrew the black cap.

6. Remove the screen assembly. Note: Do not lose the O-ring.

 

 

7. Blow the screen with compressed air.

 

 

8. Reassemble the inlet screen assembly.

 

 

9. Replace the inlet screen assembly.

“Temperatures out of

The instrument was flooded.

In the event of flooding:

range” error messages are

Environmental temperature or

1.

Disconnect the water bottle from the WATER

displayed for the Water

humidity is too high or too low.

 

INLET/DRAIN.

Separator, Optics, Growth

Note: If the instrument was

 

2.

Run the instrument for 6 to 8 hours to dry it out.

Tube or Conditioner.

flooded, you will also see water

Status screen shows

3.

When the flow returns to normal, the instrument

in the tubing and high nozzle

readings in red.

 

is dry.

pressure readings.

 

 

4. Reconnect the water bottle.

 

 

 

 

If concentrations do not return to normal, return the

 

 

instrument to TAPI for repair.

Status screen indicates

There is no water in the

Check that the water bottle is filled and connected

Water Reservoir Not Filled.

reservoir. The water may not be

correctly. Make sure that the bottle is placed at a higher

 

connected, the water bottle may

level than the instrument to provide for the gravity flow

 

be empty, or the water bottle has

fill mechanism.

 

been placed below the level of

 

 

 

the instrument.

If the problem persists, return the instrument to TAPI for

 

 

repair.

Status screen Pulse Height

There is no or very low

If the suspected concentration is above 100 #/cm3 then

indicator is too low (in the

(<10 #/cm3) particle

replace the wick and make sure water is connected to

red area).

concentration. At higher

the instrument. If all other status indicators are normal,

 

concentrations this indicates: a

the optics module must be replaced. Return the

 

dry wick, optical alignment

instrument to TAPI for replacement of the optics module

 

problems, dirty optics, or flooded

by a qualified service technician.

 

optics.

 

 

The real-time clock does

The clock battery needs

Replace the clock battery located on the main

not maintain time when the

replacing.

electronics board with a BR1225 Panasonic or

instrument is turned off.

 

equivalent.

The time is not maintained

 

 

 

correctly.

 

 

 

07506C DCN6727

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Teledyne 651 operation manual Inlet/Drain