I. General Introduction
Flame sensor with high reliable functions in measurement and burner control system, especially have some extraordinary features as below:
Self-monitoring and fail-safe in conjunction
Flame sensors for every spectral range from UV to IR
Connection to the D-UG 120 control unit, D-UG 660 control unit as well as to the D-GF 150 (-MB) burner control
Uniform output signal thus mutually interchangeable
Adjustable to different combustion technologies such as exhaust gas recirculation Compliance to general safety regulations
ATEX approved (D-LE 603 .../94 Ex for zone 1 and D-LE 603 .../97Ex for zone 2)
II. Flame sensor selection
Flame sensor | Suitability for fuels | Features | |||
Gas | Oil | Coal | Wood | ||
D-LE 603 UH | ++ | o | selective single burner monitoring in multiple-burner plants | ||
D-LE 603 US | ++ | + | at low UV radiation | ||
D-LE 603 UAF | o | ++ | with intensive ambient light (neighbouring burners), gain switchover | ||
D-LE 603 UA | + | ++ | + | o | |
D-LE 603 UI | ++ | ++ | + | + | remote changeover of spectral sensitivity |
D-LE 603 IS | ! | + | ++ | + | selective single burner monitoring (coal, oil) |
D-LE 603 IG | o | + | ++ | ++ | selective single burner monitoring (coal, oil, wood) |
D-LE 603 ISE | ! | ++ | dual-channel flame sensor (LOG/LOG) | ||
D-LE 603 ISO | ! | ++ | dual-channel flame sensor (LIN/LOG) | ||
III. General Specification
Operational mode | Intermittent operation, continuous operation and 72-hour operation without permanent supervision | Dimensions | 90x92 mm, length approx. 350 mm |
Weight | approx 1.8 kg | ||
Safety | Self-monitoring and fail-safe in conjunction with a control unit/ burner control | Sighting tube connection | G 1 1/4“ |
Purge air connection | G 1/2“ | ||
Protection class | with cable gland (D-LE 603 ... -CG) IP65 with axial plug (D-LE 603 ... -P) IP67 | D-LE 603 .../9xEx | |
Protection class | IP65 | ||
/94Ex | II 2G Ex de IIC T5/T6 | ||
Gain | four settings | /95Ex | Class l, Div. 1, Group B, C & D |
High-pass filter | three settings | /96Ex | Class l, Div. 2, Group A, B, C & D |
/97Ex | II 3G Ex nAnC IIC T6 | ||
Spectral ranges | UV, VIS, IR | /94Ex, /95Ex Dimensions Weight |
∅130 mm, length 313 mm approx. 4.3 kg |
Viewing angle | 6° | ||
Perm. Ambient temperature | -20 °C to +60 °C | Sighting tube connection | G1“ (/94Ex, /95Ex) G 1 1/4“ (/96Ex, /97Ex) |
