| General |
| The OPAL 100 series transmissometer systems are integrated emissions monitoring systems that provide continuous in-situ measurement of both visible (opacity %) and quantitative (mg/m3) emissions. They are ideal for use in package boiler, incinerator, and combustion process applications where EPA emission limits are applicable and precise combustion control is desired. OPAL 100 with optional oxygen sensor By incorporating the optional NOVATECH zirconia oxygen sensor, process combustion control can be optimised for improved results. The OPAL 100 provides dual channel output signals and alarm relays for both smoke density and oxygen levels. The total system is integrated into a single analyser control unit which represents significant savings in capital expenditure and installation costs. Continuous measurement of both stack opacity and dust levels Optional oxygen sensor as second channel output Reduce fuel costs and reduce emissions with a single investment Dual alphanumeric display with analogue and alarm outputs for opacity, dust and oxygen. Easy access to opacity transceiver and retro for lens cleaning and maintenance. Double pass, temperature stabilised, and stray light immune optical system. Long life modulated high power LED light source. Lens protection purge modules suitable for plant air or independent air blower system. Unique automatic or manual lens dirt compensation. |
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| Specifications: |
| OPAL 100 - Control Unit |
| Enclosure | IP65 weatherproof |
| Weight | 1.8 Kg |
| Ambient Temperature | -10 to +50 Deg C |
| Power Supply | 120 or 240vac, 50/60Hz, 125vA |
| Display | Alphanumeric, two line x 16 character x 4mm LCD, backlit |
| Top Line Display | Opacity %, resolution 0.1% |
| Lower Line Display | Selectable – Oxygen, Lens Dirt %, alarm & system status, dust (mg/m3) |
| Operator Indicating LED’s | Power, Alarm active, Setup mode, opacity autozero in progress |
| Outputs - |
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| Channel 1 | Linearised Opacity % - 4-20mA, isolated, scaleable span 10 – 100% opacity |
| Channel 2 | Linearised Oxygen % - 4-20mA, isolated, scaleable span 1 – 100% oxygen |
| Outputs - Relay | Four (4) programmable SP-NC, 0.5A at 24vdc ( 50vac / 30vdc maximum |
| Alarms | Optical head set failure, Maintenance mode, Lens dust level high, High opacity High or low oxygen level, Oxygen probe failure |
| Control Features | OPACITY - Manual or automatic lens dirt compensation, OXYGEN – automatic self calibration |
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| OPAL 100 - Sensors |
| Enclosure | IP65 weatherproof |
| Weight (total) | 2.5Kg transceiver, 0.8Kg retroreflector Installation Flange |
| Path Length | 300mm to 3600mm |
| Optical System | Double Pass system using high power LED light source with electronic light modulation |
| Lens Protection | Optional air purge fittings for either air blower or plant instrument air. |
| Ambient Temperature | -10 to +50 o C |
| Process Temperature | Up to 400 o C standard |
| Ambient Light Immunity | Nil effect from sunlight or artificial light sources. |
| Peak / Mean Spectral Response | 515 to 585 nm, less than 10% of peak response outside 400 to 700 nm |
| Angle of View | <4.0° from optical axis |
| Angle of Projection | <4.0° from optical axis |
| Response Time | < 2 seconds, to 90% of actual value |
| Zero Calibration / test | Manual or automatic operation, carried out under clean stack conditions. |
| Span Calibration / test | Manual operation, using optional zero / span filter test module. |
| Lens Dirt Compensation | Measure and compensate is initiated manually via keypad or remote input signal. |
| Cable Data | Supplied standard with 2 metre flex conduicted cable ( Up to 10 metre available on request ) Optional termination box for conduit cable termination. Additional cable (Customer supply): Minimum 6 core screened data cable to 120 metres max. |
Gas Analyzers 
