Azbil AUR355, User Manual

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Chapter 1. Overview
The AUR355 flame monitor (hereafter “this device”) is a combustion safety device that performs self-checking of
its built-in flame detection circuit continuously to ensure safety. This device can be used in combination with the
AUD300C advanced ultraviolet flame detector, the AUD500C explosion-proof advanced ultraviolet flame detector,
or a flame rod.
The AUR355 drives the shutter that is built into the AUD300C/500C to continuously check both its own flame
detection circuit and the ultraviolet detector in order to provide flame detection for continuous burner operation.
Also, when used with a flame rod, the AUR355 continuously checks its own built-in flame detection circuit to
provide flame detection for continuous burner operation. Also, it is equipped with a 7-segment display that can be
used in maintenance. Additionally, the device is equipped with host communications (RS-485) and a smart loader
package function, allowing more detailed observation of status and troubleshooting.
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The operating status codes, event codes and flame voltage are shown on the 7-segment display.
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LED indicators show whether there is a flame signal and indicate a fault stop.
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Self-diagnosis of the internal control relay circuit
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The design complies with JIS C 9730-2-5 and JIS C 9730-1.
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Equipped with host communications (RS-485) to enable remote monitoring.
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DIN rail mounting and a sub-base structure are provided for easy installation and replacement.
„ Handling Precautions
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This device is equipped with functions that are extremely important for the safe
operation of combustion equipment. Be sure to follow the instructions stated in
this user’s manual.
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Installation, wiring, maintenance, inspection, and adjustment of this device must
be carried out by a professional with technical training in combustion equipment
and combustion safety.
„ Cautions for combustion equipment design
Facilities that use a flame safeguard system must be designed in compliance with
relevant laws, standards, safety guidelines, and the like.
If the system is designed to foreign specifications, please observe the local laws and
standards.
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Main safety policies in Japan
Technical Policy on Safety Standards for Combustion Equipment in Industrial
Furnaces, by Ministry of Health, Labor and Welfare
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Combustion Equipment in Compliance with the Safety Principles for Industrial
Incinerators - JIS B 8415
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Forced Draught Burners — Part 1: Gas Burners (JIS B 8407-1)
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Forced Draught Burners — Part 2: Oil Burners (JIS B 8407-2)
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Index of Safety Technology of Industrial Gas Combustion Equipment, by Japan
Gas Association
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Index of Safety Technology of Gas Boiler Combustion Facilities, by Japan Gas
Association