20VDC OPTICAL FLAME DETECTOR BASIC NAME MODIFIER FLAME NAME OPTICAL TYPE USE FLAME BURNER POWER 20VDC AMBIENT TEMPERATURE – 20 TO 60 DEGREES C DEGREE OF PROTECTION IP-67 ADDITIONAL REQUIREMENTS SEE COMMERCIAL REFERENCE DURAG-DLE603-IS-P OBS: – MEASURING RANGE 300 – 1100 NM. – AIR TRAP CONNECTION 1/2. BSP. – AIMING TUBE CONNECTION 1 1/4. BSP.