D-UG660 ¥3,418.00 function Main functions : self-monitoring and fail-safe control unit for monitoring gas, oil and coal flames in combination with DURAG UV, UV +IR or IR flame sensors, mainly in multi-burner furnaces parameter Working voltage : 24VDC, power supply voltage 200V (or 230V) Monitoring current : 20A Detection range : 100 m Response time : 10s Operating temperature : -20 to 60 degrees Processor speed : 22 (may vary depending on configuration)