Spectrex Quasar 900 Open-Path Gas Detection System - Manual (Page 56)

SafEye TM Quasar 900 Gas Detector
44 Periodic Maintenance
7.2.1 Routine Optical Surface Cleaning
The SafEye system, being an optical device, must be kept as clean as
possible. The optical surfaces concerned are the Source and Detector
viewing windows.
➣ To clean the optical window, proceed as follows:
1 Turn off the power to the SafEye detector and source.
2 In places where dust or dirt has accumulated on the optical surface,
clean the surface with a small, soft-bristle brush.
3 The surfaces must then be washed thoroughly with water and a mild
non-abrasive detergent.
4 Thoroughly rinse the glass surface with clean water; ensuring no residue
is left behind.
5 Dry the glass with a clean dry soft cloth.
6 Enter in the Maintenance Logbook: Date, name of person and company
who performed the maintenance service.
7 Turn on power to the SafEye detector and source.
8 Perform signal verification (see Signal Verification, page 39).
9 Perform zero calibration (see Zero Calibration, page 40).
10 Perform functional check (see Functional Check of Unit, page 41)
7.2.2 Signal Verification
The signal verification check determines the proper operation of the open
path. It checks the alignment and cleanliness of the window or any problem
in Source or Detector. Use the PC Host software to measure the signal
verification.
Refer to Manual TM 888050 or use I.S handheld unit. Refer to Manual
TM 799060 for non I.S Handheld Unit.
7.2.3 Function Check of Unit
The SafEye Quasar 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.