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Technical specifications
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Property
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Value
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Optical sensor Technology
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IR versions: Si photodiode Spectral response peak @ 920nm
IR versions: Si photodiode Spectral response peak @ 920nm
VL versions: Si photodiode Spectral response peak @ 560nm
UV versions: SiC photodiode Spectral response peak @ 280nm
UVIR version: Si + SiC photodiode1 Spectral response peak @280nm and 920nm
1 Si and SiC photodiodes signals can be processed individually or both combined as per burner opertion
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Power supply voltage
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24VDC (-25%, +20% = 18 ÷ 29VDC )
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Power supply current
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150mA typical,
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Power consumption
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3.6W typical, 4W max
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Inrush current
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6A peak, 2ms settling time
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Flame Relay
Safe Relay
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Contacts: 1 NO, for each relay
240 VAC / 1.5A cycles ≥ 100,000
240 VDC / 100 mA
30 VDC / 300mA
Minimum load 10mA, 5VDC
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FFRT
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Flame Failure Response Time: 0.2s to 4s
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Analog output (4-20mA)
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4÷20 mA (R load <= 500Ω)
Galvanically isolated
Precision: +/-5% f.s
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Digital Inputs, 24 VDC
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Nr. 2 digital inputs (opto coupled), to allow selection of one out of four different sets of parameters; return signal common to both inputs.
Nominal voltage 24VDC (5 mA typical)
Max Voltage 36 VDC
Off: < 5 VDC
On: > 18 Vdc
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Communication ports
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Two, redundant, RS-485 serial channels configurable in Profibus or Modbus protocols.
Profibus: max speed 12 Mbit/s
Modbus: max speed 115.200 bit/s
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Local configuration interface
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4 push buttons (UP, DOWN , LEFT, RIGHT)
3-digits LED display
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Air source for lens cleaning
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From clean ambient air
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Air flow for lens cleaning
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LOS (Line Of Sight) versions: 115 l/min (4 SCFM)
Excessive contaminants might require a flow up to 400 l/min (14 SCFM)
FOC (Fibre Optic Cable) versions: 400 l/min (14 SCFM)
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Minimum cleaning air pressure
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LOS (Line Of Sight) versions: 20mm H2O (1” W.C.) above the max wind box pressure measured at the “Y” connection inlet.
FOC (Fiber Optic Cable) versions: 400mm H2O (12” W.C.) above the max wind box pressure measured at the “Y” connection inlet.
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Maximum fibre optic continuous
operating temperature
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482° C (900° F) for VL and IR fiber optic cables
350° C (662° F) for UV and dual sensor UVIR fiber optic cable
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Housing mounting thread
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1” NPT male
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Cable entry thread
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¾ “ NPT female (N/A for connectorized versions)
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Electrical connections
(terminal versions)
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Removable terminals with screws
Allowable cable section:
AWG24-AWG12, 0.2-2.5mm2 for Relay contacts (J1 connector)
AWG 28-AWG16, 0,08-1.5mm2 for all other terminals
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