Spectrex SafEye 300 Series, Руководство пользователя

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Periodic Maintenance
TM794200 Rev Ad, March 2019 61
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To check signal intensity:
1
Enter alignment mode by placing the mode selector on the side of the
detector for 2 seconds.
2
Within the first 20 seconds the detector indicates 3 different indication
levels (see Table 2).
3
Wait 20 seconds, count the number of LED flashes, and note the
colors. Then adjust the value (see Table 13).
4
Record the new results in the maintenance logbook.
5
Wait 20 seconds, count the number of LED flashes, and note the
colors. Then adjust the value (see Table 13).
6
Record the new results in the maintenance logbook.
7
Determine the absolute variance compared with the previous
alignment reading in the maintenance logbook.
8
If the variance is more than 30%, perform alignment (see Operating
Instructions on page 55) and zero calibration (see Zero Calibration on
page 56). Call a technician for service if the SIC is less than 66 and
both LEDs flash red.
Table 13: LED Signal Adjustment
Color (left-right) Number to be added
Red-Red 0
Orange-Orange 62
Green-Orange 124
Green-Green 186
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) x 100 = 6.25% less than the
previous alignment.