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5 Maintenance
Procedures
Introduction This chapter provides routine maintenance instructions that the
ApexRemote instrument require.
The maintenance procedures described in this chapter are not required
on regular or prescribed intervals and should be performed only if the
user has reason to question the data they are receiving.
Safety Before performing any of the maintenance tasks described in this
chapter, read Chapter 1 of this manual and become familiar with the
warnings and caution labels.
Maintenance Calibration
To maintain optimum performance of this instrument, it should be
recalibrated annually by a Lighthouse Authorized Service Provider.
Zero Count
Test
This section will provide the user a procedure to determine if the
ApexRemote can successfuly complete several zero counts. A purge
filter must be attached to the instrument and six (6) five (5) minute
samples must be taken. There should be no more than 1 count on
average per five-minute sample.
1. Connect the Purge filter to the sample inlet.
2. Apply power to the instrument.
3. Configure the unit to sample for 30 minutes.
4. Allow the instrument to sample through a 30-minute period. This
time allows the unit to warm up and purge any residual particles
that might be inside it.
5. Configure the unit to sample for 5 minutes with a 10-second hold.
6. Allow the instrument to take 6 samples.
7. If an average of more than one count per five-minute period is
reported, allow the instrument to sample for 30 minutes to purge
it, then repeat the test (Steps 5 & 6).
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