Spectrex SafEye 300 Series, Руководство пользователя

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System Setup
30 SafEye TM Open Path Detection System User Guide
3.9.2.2 Full Scale
Two full scales are available:
Table 7: Sensitivity Levels Options 301 SIL
Sensitivity Full Scale Warning Level Alarm Level
Normal 2.5 LEL*m 1 LEL*m 1.5 LEL*m
High 1 LEL*m 0.4 LEL*m 0.6 LEL*m
When choosing a full scale, the warning and alarm level will change
automatically per the table.
3.9.2.3 Zero Calibration
Enable Zero calibration is performed according to background
Disable The detectors are not updated due to change of background
3.9.2.4 Other Functions
Accessory relay
Accessory relay is
activated at warning
level. Accessory relay is activated at
alarm level.
Alarm latching
No latching function at
alarm relay. Alarm relay is latched. Latching
reset can be performed by
momentary power disconnection
or when detectors are set to
alignment mode.
4 – 20 mA mode
Continued reading of
the 4
– 20mA per the gas
concentration level
(see Table 1: SafEye
300 IR type Model
Information ).
Discrete reading of the 4 – 20mA
output according to the detector
status (see Table 2).
Beam block during
alarm
Non-latching of alarm
indication during
blocking mode. Alarm outputs are latched when
the detector switches to
blocking mode from alarm
position. Latching reset can be
provided only if the detector
returns to normal mode.
3.9.2.5 Address Setup
The detector provides up to 247 addresses that can be used in an RS-485
communications link.