Spectrex SafEye Xenon 700S, Руководство пользователя

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Principles of Operation
TM 799200 Rev. (4), April 2017 21
2.3.8 Heated Optics
SafEye Xenon includes heated optics for the detector and source. To
improve performance in conditions where there is ice, condensation, or
snow, the heater increases the temperature of the optical surface by 5–8°F
/ 3–5°C above the ambient temperature. The heated optics are configured
to automatically operate when the change in temperature requires heating
(default).
However, the heated optics can be defined as 1 of the following modes:
 Not operated (not an option on source unit)
 On continuously
 Automatic, per temperature change (default)
See System Setup , on page 33.
When operated “per temperature change,” the user can define the start
temperature below which the window will be heated (default is 41°F/5°C).
This temperature can be defined from 32°F/0°C – 122°F/50°C. The heating
stops when the temperature is 27°F/15°C above the start temperature.
2.3.9 HART Protocol
The Xenon 700S uses the HART Protocol.
HART communication is a bi-directional industrial field communication
protocol used to communicate between intelligent field instruments and host
systems. HART is the global standard for smart instrumentation and the
majority of smart field devices installed in plants worldwide are HART-
enabled.
HART technology is easy to use and very reliable.
Through the HART connection, the SafEye is able to perform:
 Detector setup
 Detector troubleshooting
 Detector health and status
For more details, refer to Manual TM 899030 .
2.3.10 Modbus RS-485
For more advanced communications, the SafEye Xenon 700 has an RS-485
Modbus-compatible output that provides data communication from a
network (up to 247 detectors) to a host computer or universal controller for
central monitoring. This feature enables easy maintenance, with local and
remote diagnostic tools.