Spectrex SafEye 200 Series, Руководство пользователя и по обслуживанию

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SPETCREX INC.
SafEye
™ ™
Series 200 IR Gas Detector - User’s and Maintenance Manual
Doc. No. TM792100, Rev. B, Oct.. 1997
- 48 -
4. 2. 1.
Routine ("Monthly") 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 Detector.
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 the following information into the maintenance log: Date and name of person
and company who performed the maintenance service.
7. Turn on the power to the Detector.
8. Perform Zero Calibration (see section 3.4).
4. 2. 2.
Signal Intensity Check (SIC)
The Signal Intensity Check determines if there is a misalignment or if the Flash Source
signal is wearing over a period of time. Clean the optical surfaces prior to performing
this check (see 4.2.1). This procedure should be performed in clear weather.
1. Enter Alignment Mode by placing the magnet on the side of the detector for 2
seconds.
2. Within the first 20 seconds the Detector indicates 3 different indication levels. See
Table 1-2.
3. Wait 20 seconds and count the number of LED blinks with the color, and adjust
the value (see Table 4-2).
4. Record the new results in the maintenance log book.
5. Determine the absolute variance compared with the previous alignment reading in
the maintenance log book.
6. If the variance is more than 30%, perform alignment (see section 3.2) and zero
calibration (see section 3.4). Call a technician for service if the SIC is less than 66
with both LED’s blink in red color.
Table 4-2. LED Signal Adjustment
Color
(left-right)
Number to be
Added
Red-Red 0
Orange-Orange 62
Green-Orange 124
Green-Green 186