PRELIMINARY BROCHURE

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1 FOURTH GENERATION HIGH RESOLUTION PRECISION REFERENCE METHOD GAS ANALYSERS FOR STAND ALONE USE GAS FILTER CORRELATION CO, CO 2, NO, SO 2, N 2 0, CH 4 + MORE CHEMILUMINESCENCE NOx, NO 2, NO FLAME IONIZATION TOTAL HYDROCARBONS, CH 4, VOC PARAMAGNETIC O 2 FOR SYSTEMS INTEGRATION PRELIMINARY BROCHURE

2 SERIES 4 COMMON PLATFORM GRAPHICAL USER INTERFACE (GUI) Colour touch screen SD card flash memory logging all channels USB for uploads/downloads Displays: readings, chart traces, flow rates, alarms, faults, linearization function COMMUNICATIONS I/O RS232, Ethernet, (TCP/IP with IP address), AK Protocol, CAN Bus (optional), 0-10VDC, 4-20mA, 35 contact closures (all programmable). REMOTE COMPUTER SOFTWARE MODULE (running on Windows OS)

3 PULSAR CLASS GAS FILTER CORRELATION NDIR TYPICAL GASES: CO, CO 2, NO, SO 2, N 2 O, CH 4 + MORE Gas Filter Correlation is the best type of NDIR for combustion gas analysis. Instead of a dual beam sample cell and a separate reference cell, this method uses only a single cell for both sample and reference. This method reduces problems with cell contamination causing a difference in readings. Also, with Gas Filter Correlation we fill the filter wheel interfering gases e.g. H 2 O, CO 2 to eliminate the effects of these gases when measuring for example low CO in the presence of percent levels of these other gases. The Pulsar class also provides superior levels of linearity throughout the 10,000:1 range ratio. HIGH RESOLUTION WIDE DYNAMIC RANGE 10,000:1 LOW CO, for example, 0-10, 0-50, 0-100, 0-500, ppm +/- 1% LINEARITY 24V DC VERSION

4 SERIES 4 TECHNICAL SPECIFICATION - PULSAR MULTIGAS NDIR o o o o o Available in 1, 2, 3, 4, or 5 gas channel configurations New design for improved specification Supplied with software suite for use over Ethernet or RS232 Suitable for ultra-low measurement range applications Rotating filter design for minimal cross sensitivity The new Pulsar detector from Signal has been upgraded to provide our best ever performance specification. With the lowest drift on the market it is ideal for low range applications or high accuracy measurement. The GFC design of the detector prevents cross sensitivity to other gases and also removes the risk of contamination through a sample containing particulate matter. It provides a cost effective, low maintenance option for even low concentration measurement applications. Ambient Operating and Storage Conditions Operating temperature: 5 C to 40 C Storage temperature: -12 C to 40 C Max operating humidity: 80%RH Storage max humidity: 80%RH Inlet pressure: Up to 2 bar Sample temperature: maximum 40 C Power requirements: VAC 50/60Hz or 24V DC Universal Sample dewpoint: below local ambient temperature Construction Materials Wetted: stainless steel 316, PTFE, quartz in paramagnetic O 2 detector Output Signals Ethernet as standard. Optional 4-20mA and 0-10V DC. Onboard logging included with screen option. Linearity < ±0.5% of range or 2% of reading Intercept 0.5% range Slope 1.01 SEE 1.0% range R Repeatability < ±1% of range or ±0.5ppm, whichever is greater Drift Zero: <1% FS/24h, <2% of range per week Span: <1% FS/24h, <4% of range per week Response Time T90 <5s Dependent on gas and cell length. See page 2 for individual values Warmup Time Useable: 5 minutes Operation to specification: 1 hour Ambient Temperature Effect Zero and Span: <0.2% of range per C Flow Sensitivity 0.1% of range per L/min Sample Filter Pore Size 10 micron

5 SERIES 4 TECHNICAL SPECIFICATION -gas specific values Gas/Range Zero Noise/LDL Span Noise Response Time*, T 90 Cross Sensitivities (Raw signal) ** (Raw signal)** Carbon Monoxide (CO) -10ppm ~ ppm 0.1ppm/0.5ppm <1% reading < 3 seconds 100% CO 2 :< ±1ppm -50ppm ~ ppm <1ppm / 2ppm <1% reading <3 seconds 1% CH 4 :< ±1ppm -0.1% ~ 0-10% <0.01%/0.02% <1% reading < 2 seconds 1% N 2O :< ±3ppm -0.2% ~ 0-20% <0.05%/ 0.1% <1% reading <2 seconds 2.3%H 2O/N 2 :< ±3ppm Carbon Dioxide (CO 2) -10ppm ~ ppm 0.1ppm/0.2ppm <1% reading <2 seconds 100% CO :< ±2ppm 0-100ppm~ 0-10,000ppm <1ppm/ 2ppm <1% reading <2 seconds 1% CH 4 :< ±1ppm 0-0.1~ 0.10% <0.01%/ 0.02% <1% reading <1 second 2.3%H 2O/N 2 :< ±1ppm 0.02~0-20% <0.05 / 0.1% <1% reading <1 second 0-1% ~ 0-100% <0.2/0.4% <1% reading <1 second Nitrous Oxide (N 2O) -10ppm ~ ppm <1.0ppm/2ppm <1% reading <5 seconds 1000ppm CO :< ±2ppm -100ppm ~ 0-10,000ppm <10ppm/20ppm <1% reading <3 seconds 10% CO :< ±36ppm 10% CO 2 :< ±1ppm 20% CO 2 :< ±3ppm 2.3%H 2O/N 2 :< ±2ppm Nitric Oxide (NO) 0-10ppm ~ ppm <2.0ppm / 4ppm <2% reading <2 seconds 10% CO :< ±2ppm 0-100ppm ~ 0-10,000ppm <20ppm / 40ppm <2% reading <2 seconds 10%CO 2 :< ±1ppm 500ppmCH 4 :< ±1ppm 2.3%H 2O/N 2 :< ±10ppm Sulphur Dioxide (SO 2) 0-10ppm ~ ppm <1.0ppm / 2ppm <1% reading <5 seconds 5000ppm CO :< ±4ppm 0-100ppm ~ 0-10,000ppm <10ppm / 20ppm <1% reading <3 seconds 10% CO 2 :< ±2ppm 500ppm CH 4 :< ±15ppm 2.3%H 2O/N 2 :< ±15ppm Methane (CH4) -10ppm ~ ppm <2ppm/4ppm <1% reading <5 seconds 100% CO :< ±5ppm 0-100ppm ~ 0-10,000ppm <20ppm/ 40ppm <1% reading <4 seconds 100% CO 2 :< ±25ppm 0-1% ~ 0-10% <0.1% / 0.2% <1% reading <2 seconds 2.3%H 2O/N 2 :< ±5ppm Hydrogen Chloride (HCl) -10ppm ~ ppm <4ppm / 8ppm <1ppm <5 seconds 100% CO :< ±2ppm 0-100ppm ~ 0-10,000ppm <40ppm / 80ppm <20ppm <5 seconds 10% CH4 :< ±150ppm 500ppmCH 6H 14 :< ±2ppm *based on sample flow at 1 L/min **User configurable adaptive averaging can be used to improve noise specification

6 QUASAR CLASS CHEMILUMINESCENCE DETECTOR The Signal Quasar series of Chemiluminescence NOx analysers is unique in the market with the very special ozone generator and the low level of quenching effects from CO 2 and H 2 O. The soft discharge neon lamp ozone generator is unique among competitors with its ability to use air as its feed gas without any Nitrogen in the air becoming NO and NO 2. High voltage corona discharge techniques and UV lamps both suffer from this and major competitors recommend the use of 100% Oxygen to avoid this effect, and this is expensive compared to air. The high vacuum and heated design also eliminates quenching and increases signal strength and also avoids any condensation in the sample and measurement which could cause losses of NO 2 in condensate. The vacuum pump is of a dry diaphragm design. We offer a single NOx detector, dual continuous NO, NO 2, NOx detectors, non vacuum for dilute and dry samples (e.g. CVS vehicle testing, off road dry NOx testing), and NOx, NH 3, NO 2 using selective converters and dual continuous detectors. ELECTRONIC PROPORTIONAL BAND FLOW CONTROLLERS VERY LOW QUENCHING FROM CO 2 and H 2 O SPECIAL OZONE GENERATOR USES AIR AS FEED GAS LONG LIFE NOx CONVERTER (5 YEARS) DRY, LOW MAINTENANCE VACUUM PUMP 24V DC VERSION

7 SERIES 4 TECHNICAL SPECIFICATIONS - QUASAR CHEMILUMINESCENCE Ranges Linearity 0-1 ppm, ppm 0-10 ppm, 0-10,000 ppm ± 1% of value Response Time T seconds Converter Efficiency 95% Converter Life time < 5 years Temperature Effect 0.3%/ C Pumps Vacuum: Dry type Maintenance: 6 months diaphragm change Motor: Maintenance free Bypass: Maintenance: 6 months diaphragm change Motor: Maintenance free Power V AC 50/60Hz Universal or 24V DC Ozonizer Feed Gas Self contained air supply Quenching CO 2 : less than 1% for 10% CO 2 H 2 O: less than 1% for 3% H 2 O

8 SOLAR CLASS FLAME IONIZATION DETECTOR The Signal Solar Flame Ionization Detector product line is unique in the market with its precision machined, monobloc arrangement of ceramic isolated flame jet tip cylindrical collector and venturi effect air/fuel/sample design. This has produced reproducibility of production so that every analyser has exactly the same characteristics. The need for this uniformity is important when measuring hydrocarbons as there are many different species in the measurement mix and barometric changes can be a problem. The monobloc design encompasses the hot oven, the heated filter, span/zero/cal valve and the sample pump. Thus, a very compact and leak proof design is provided. The sample pump uses a brushless DC motor for total reliability. We offer a heated 191 C single FID for total hydrocarbon, a Methane only single FID using a cutter to remove/convert all hydrocarbons except for Methane, and a dual detector for continuous total hydrocarbons, Methane, and non Methane. ELECTRONIC PROPORTIONAL BAND FLOW CONTROLLERS AUTOMATIC FLAME OPTIMIZATION PROGRAM SPECIAL HIGH EFFICIENCY HC CUTTER CERTIFIED CONFORMITY TO EN12619:2013 QUAL1 24V DC VERSION

9 SERIES 4 TECHNICAL SPECIFICATIONS - SOLAR FLAME IONIZATION DETECTOR Ranges Linearity 0-1 ppm, ppm 0-10 ppm, 0-10,000 ppm ppm, 0-100,000 ppm ± 1% of value Response Time T seconds Cutter Efficiency 95% Cutter Life time < 3 years Temperature Effect 0.3%/ C Effect of Oxygen 0.3% reading from Zero - 10% O 2 in sample Response factors with respect to Propane N-Butane Ethyl Acetate Isopropanol N-heptane P-xylene Benzene Toluene Methane Dichloromethane Isobutyl Acetate Chlorobenzene Cyclohexane Ethyl Benzene Acetylene Tetrachloroethylene Power V AC 50/60Hz Universal or 24V DC Certified to EN12619:2013 QAL1 Fuel Hydrogen 80 ml/min Hydrogen/Helium 160 ml/min or Air Self contained using a catalytic scrubber * for 0-1 ppm bottled synthetic air is recommended

10 Signal Series 4 Model Numbers Heated FID based analysers: HFID THC Single THC HFID NMHC Single, switched cutter THC, CH4, NHMC HFID DNMHC Dual THC, CH4, NMHC Cold FID based analysers: CFID THC Single THC CFID NMHC Single, switched cutter THC, CH4, NMHC CFID CH4 Single, methane only CH CFID DTHC Dual THC1, THC FID based analysers for ambient measurement: CFID ANMHC Single, switched cutter THC, CH4, NHMC Vacuum CLD based analysers: VCLD NOx Single, switched NOx converter NO, NOx VCLD NO2 Single, switched converter NO, NOx, NO2 VCLD NH3 Single, switched NOx converter and NH3 converter NO, NOx, NO2, NH3, TN (Total Nitrogen) VCLD TN Single, switched NH3 converter NO, TN VCLD DNO2 Dual, NOx converter NO, NOx, NO2 VCLD DTN Dual, NH3 converter NO, TN Ambient pressure reaction chamber CLD based analysers: CLD NOx Single, switched NOx converter NO, NOx CLD NO2 Single, switched NOx converter NO, NOx, NO2 CLD DNO2 Dual, NOx converter NO, NOx, NO2 CLD based analysers for ambient measurement: CLD ANO2 Single, switched NOx converter NO, NOx, NO2 GFC based analysers (each bench is single OR dual range): GFC10 GFC20 GFC11 GFC21 GFC22 GFC10P GFC20P GFC11P GFC21P GFC22P Single bench (folded path allowable) Dual bench (folded path allowable on both) Twin single benches (folded path allowable on both) One dual & one single bench (folded path allowable on the single bench) Twin dual benches (no folded path allowable) Single bench (folded path allowable), with oxygen analyser Dual bench (folded path allowable on both), with oxygen analyser Twin single benches (folded path allowable on both), with oxygen analyser One dual & one single bench (folded path allowable on the single bench), with oxygen analyser Twin dual benches (no folded path allowable), with oxygen analyser

11 Single Beam (SB) based analysers: SBIR10 SBIR11 SBIR30 SBIR40 SBIR10P SBIR11P SBIR30P SBIR40P Single bench Twin single benches Three single benches Four single benches Single bench, with oxygen analyser Twin single benches, with oxygen analyser Three single benches, with oxygen analyser Four single benches, with oxygen analyser Luft (dual beam) based analyser: DBIR - x Where x is the gas measured (e.g. NH3, etc) Paramagnetic based analyser: PMAG O2 Oxygen only UV Photometer based analyser for ambient measurement: UVP AO3 Ozone only UV Fluorescence based analyser for ambient measurement: UVF ASO2 UVF AH2S SO2 only SO2 & H2S, switched H2S converter

12 APPLICATIONS USING SIGNAL SERIES 4 ANALYSERS AUTOMOTIVE Engine Test Cells: Vehicle Cells: Sheds: Other: Raw Exhaust Cat Efficiency Diesel/Gasoline/Alternative Fuels EPA CFR40, EURO 4-6 regulations EPA CFR compliant Dilute CVS emissions Vehicle Certification EPA CFR40, EURO 4-6 regulations EPA CFR compliant ULEV, SULEV, SORE Evaporative Hydrocarbons Running Loss CONTINUOUS EMISSIONS SYSTEMS CCGT, CHP Low NOx combustors, stationary engine standby power Coal fired power stations Carbon capture and storage COMBUSTION Boiler testing: domestic appliance, industrial heaters Fire materials testing ENVIRONMENTAL MONITORING Certified stack testing laboratories RESEARCH AND UNIVERSITIES Combustion research Chemical engineering Carbon capture and storage Engine development/gas turbine/diesel/catalyst development/efficiency VOC MONITORING SYSTEMS Paint and coating processes Print processes Waste incineration: lower ppm VOC monitoring (1-5 ppm) OTHER Tobacco fumes testing Pure gas impurities Medical gas NO in N 2 O Hydrocarbon trace in air separation processes Contact sales@signal-group.com +44 (0)