Spectrex Series 300 Open-Path Gas Detection System - Manual (Page 59)

Spectrex Inc. - SafEye TM 300 Gas Detector Manual – TM 794100, Rev. D, May 2004
51
Example:
At a hypothetical installation the LEDs are Green-Orange with 3 green flashes
(left LED) and 6 orange flashes (right LED).
The number is 36 + 124 = 160
The next periodic maintenance reading has Orange-Orange LEDs with 8 orange
blinks (left LED) and 8 orange flashes (right LED).
The number is 88 + 62 = 150
The variance is 160-150 = 10 Units
The percentage of variance will be (10/160)*100 = 6.25% less then previous
alignment.
7.2.3 Function Check of Unit
The SafEye system has been calibrated at the factory per the user’s specific gas
or vapor detection requirements. This procedure validates the functional
operation. The functional check must be done periodically. Refer to 6.7 for
instructions.
Caution:
Automatic activation or any external device that should not be activated
during the calibration check should be disconnected.
7.2.4 Maintenance Records
Record every maintenance operation performed on the Source and/or Detector in
a Maintenance Log-book. The logs should include but not be restricted to the
following:
•
The information identifying the measurement units.
•
The date of installation and contractor.
•
Entries for every maintenance operation performed to include at least the
description of the operation, date and personnel ID.
•
Signal intensity records with SIC results.
•
Calibration check (CC) results.
If the unit(s) is (are) sent to the authorized Supplier, a copy of the Maintenance
Records must accompany the unit concerned.