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Operation Manual HORIBA APDA-371
Particulate Monitor
Date:
April, 2010
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HORIBA Europe GmbH, Julius-Kronenberg-Str. 9, D-42799 Leichlingen,
: +49(0)2175-8978-0,
: +49(0)2175-8978-50
Page 44
7
MAINTENANCE, DIAGNOSTICS and TROUBLESHOOTING
This section provides information for maintaining your APDA-371, and for performing diagnostic tests if a problem is
encountered. If the unit generates errors on the display or in the data array, first check Section 6.5 to identify the error.
Many times there is a simple solution. Persistent errors often signify a failure or impending failure which will require
investigation.
7.1
HORIBA Suggested Periodic Maintenance
Maintenance Item
Suggested Period
Nozzle and Vane Cleaning*
Monthly
Leak Check*
Monthly
Flow Rate Verification
Monthly
Clean Capstan Shaft and Pinch Roller Tires*
Monthly
Clean PM10 Head
Monthly
Clean PM2.5 Inlet
Monthly
Check Error Log*
Monthly
Download Digital Data Log*
Monthly
Compare APDA-371 Data to External Datalogger Data (if used)
Monthly
Replace Filter Tape
2 Months
Run SELF-TEST Function
2 Months
Full Flow Audit and Calibration
2 Months
Verify APDA-371 Settings
2 Months
Set Real-Time Clock
2 Months
Replace or Clean Pump Muffler (if used)
6 months
Test Pump Capacity
6 months
Test Filter RH and Filter Temperature sensors
6 months
Test Smart Heater
6 months
Perform 72 hour BKGD (BX-302 zero filter) test
12 months
Clean Internal Debris Filter
12 Months
Check Membrane Span Foil
12 Months
Beta Detector Count Rate and Dark Count Test
12 Months
Clean Inlet Tube
12 months
Test Analog DAC Output (if used)
12 Months
Rebuild Vacuum Pump*
24 months
Replace Nozzle O-ring (Special tools required)
24 months
Replace Pump Tubing
24 Months
Factory Recalibration. Not required except for units sent for major repairs.
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*These items may be performed more often as required.
7.2
Audit Sheet and Test Records
The back of this manual contains a sample of a APDA-371 Audit Sheet. This is a test record which can be filled out as
calibrations, checks, or audits are performed on the unit. The operator is encouraged to make copies of this sample
sheet to use as needed. HORIBA can also supply the original document in a Microsoft Word
®
format to be modified as
needed. Keeping records of calibrations and maintenance is critical for any monitoring program. Most agencies develop
their own SOP for maintenance items and test records.