Met One Instruments C-12, Руководство по эксплуатации, Страница: 33 / 41

C-12-9800 Rev A Page 33
Problem : Data download timestamp does not match webpage data
Cause/Solution
:
•
Check that the time zone offset is properly set in the clock setup screen. Refer to
Section 6.6.1.
Problem : Calibration Audit failures
Cause/Solution
:
•
A Calibration Audit Failure can occur if the filter tape is moved during the Calibration
Audit procedure. Care should be exercised to not move or damage the tape when
performing the calibration audit.
•
A Calibration Audit Failure can occur if the Calibration Audit Membrane (83011) is
inserted incorrectly. The Membrane should be fully seated and the open holes on
the LEFT.
•
A Calibration Audit Failure can occur if the ND filter membrane in the 83011 span
check membrane is damaged. A replacement 83011 membrane can be purchased
from the Met One Instruments Service Department.
Table 7-4 Common Problems and Solutions
7.3 Suggested Periodic Maintenance Intervals
Table 7-5 shows the Met One Instruments recommended periods for routine maintenance items.
Some of these items will need to be performed more or less often depending on local conditions.
Local monitoring program administrators may need to review these items and establish SOPs
appropriate for local applications.
Maintenance
Item
Minimum
Period
Manual
Section
Replace filter tape
As Required
(2-12 Months Typical)
3.6
Flow audit 1 Months 7.4.2
Span check 3 Months 7.4.3
Leak test 3 Months 7.5
Flow full calibration 3 Months 7.4.1
Replace main pump As Required
Contact qualified
service technician
(Section 1.2).
Factory service As Required 7.6
Table 7-5 C-12 Maintenance Schedule