Quasar 950 960 Series Toxic Gas Open Path

Quasar 950 & 960 Series Toxic Gas Open Path Detectors

Contents 1 2 3 4 5 6 7 8 9 10 Principle of Gas Detection Saf. Eye 950 & 960 Models and Types Saf. Eye 950 & 960 Benefits Saf. Eye 950 & 960 Technical Specifications Saf. Eye 950 & 960 Features & Functions Accessories Part Numbers Installation & Commissioning Testing & Maintenance Applications 2 | 87

Agenda 1 2 3 4 5 6 7 8 9 10 Principles of Gas Detection Saf. Eye 950 & 960 Models and Types Saf. Eye 950 & 960 Benefits Saf. Eye 950 & 960 Technical Specifications Saf. Eye 950 & 960 Features & Functions Accessories Part Numbers Installation & Commissioning Testing & Maintenance Applications 3 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Principles of Gas Detection The open path gas detector system detects gases through a dual spectral range monitoring, analyzing the absorption of radiation caused by gases in the atmosphere and comparing it (ratio) to background atmospheric absorption. Detector Source S ignal 2 Flashlamp 4 | 87 Reference O ut put s GAS CP U Current Driver S ignal 1

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Principles of Gas Detection 5 m Transmitter TX Receiver RX 20 ppm 20 m Separation of the measuring length in e. g. 20 single measuring point “Cloud“ Length Average gas concentration of the “cloud“ Sum 5 | 87 5 m 20 ppm 100 ppm. m Detector Head Reading (ppm) 1 0 ppm 2 0 ppm 3 0 ppm 4 0 ppm 5 0 ppm 6 0 ppm 7 0 ppm 8 20 ppm 9 20 ppm 10 20 ppm 11 20 ppm 12 20 ppm 13 0 ppm 14 0 ppm 15 0 ppm 16 0 ppm 17 0 ppm 18 0 ppm 19 0 ppm 20 0 ppm Sum 100 ppm

Principles of Gas Detection Simplified view: Transmitter TX Receiver RX High gas dilution on complete measuring length and or low local / partial gas concentration The gas concentration is measured as integral /added sum over the complete measuring length: ∑ % ppm x m Both system are measuring the same total gas concentration. Transmitter TX Receiver RX Minor gas dilution on complete measuring length and or high local / partial gas concentration Gas Leakage 6 | 87

Contents 1 2 3 4 5 6 7 8 9 10 Principle of Gas Detection Saf. Eye 950 & 960 Models and Types Saf. Eye 950 & 960 Benefits Saf. Eye 950 & 960 Technical Specifications Saf. Eye 950 & 960 Features & Functions Accessories Part Numbers Installation & Commissioning Testing & Maintenance Applications 7 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Models and Types Product and Variant concept Saf. Eye 950 & 960: Flash Source unit (Tx) – 3 for different distances: Ø Tx for 5 up to 20 m Ø Tx for 15 up to 40 m Ø Tx for 35 up to 80 m The UV Source unit emits UV radiation pulses at the rate of pulse per second. The front of the source has a internal reflector that collimates the UV beam for maximum intensity. The sources models have the same electronics and optical device. The only difference is in the apparatus. 8 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Models and Types Product and Variant concept Saf. Eye 950 & 960: Detector unit (Rx) – 2 for different gases: Ø Saf. Eye 950 for Hydrogen sulfide (H 2 S) Ø Saf. Eye 960 Ammonia (NH 3) The Detector receives the transmitted pulsed radiation signals from the UV Source. The signals are then amplified and fed into an analog to digital signal converter to be processed by the internal microprocessor. When the signals drop below a prescribed level, the internal microprocessor will compensate for them. This will allow the signal to be maintained even in severe weather conditions. The data is sent to the output interface section. In the UV band, H 2 S has characteristically strong absorption in the solar blind range of 189– 270 nm and NH 3 within the range of 189 - 210 nm. Aromatic Hydrocarbons such as Benzene, Toluene, Xylene, Styrene, etc. , have the unique “conjugated double bonding” chemical configuration responsible for their spectral absorption in the UV band. In the UV band, the aromatic compounds have a typically strong absorption in ranges of 200 – 230 nm and 250 -270 nm. 9 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Models and Types The Quasar 950 (H 2 S) & 960 (NH 3) are represented by 2 different Detectors, for H 2 S and NH 3, combined with 3 different Sources. This offers the possibility to cover detection ranges from 5 up to 80 m. 10 | 87

Contents 1 2 3 4 5 6 7 8 9 10 Principle of Gas Detection Saf. Eye 950 & 960 Models and Types Saf. Eye 950 & 960 Benefits Saf. Eye 950 & 960 Technical Specifications Saf. Eye 950 & 960 Features & Functions Accessories Part Numbers Installation & Commissioning Testing & Maintenance Applications 11 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Benefits Ø Fence Line monitoring of Toxic Gases Ø H 2 S, NH 3 and Aromatic Hydrocarbons Ø Coverage of low toxic concentration 0 - 500 ppm. m Ø Coverage of long distances up to 80 m Ø Reliable and fast detection principle Ø strong and long life time of UV source Ø Detection within solar blind UV range Ø Response time < 10 sec Ø Designed to meet SIL 2 Ø Can withstand harsh and extreme environments Ø Heated optic to eliminate effects of icing, snow, condensation Ø Continuous operation in extreme environments -55°C to +65°C Ø Easy alignment & commissioning Ø One-man set-up 12 | 87 Ø Communication Interfaces with HART 7 and RS 485 capability

Contents 1 2 3 4 5 6 7 8 9 10 Principle of Gas Detection Saf. Eye 950 & 960 Models and Types Saf. Eye 950 & 960 Benefits Saf. Eye 950 & 960 Technical Specifications Saf. Eye 950 & 960 Features & Functions Accessories Part Numbers Installation & Commissioning Testing & Maintenance Applications 13 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Technical Specifications Spectral Response: 190 -300 nm Response Time: < 10 sec Sensitivity Range: 0 -500 ppm. m Minimum Detectable Level: 50 ppm. m Drifter: ± 10 % of reading or ± 5% of full scale (whichever is greater) Displacement/Misalignment: > ± 1° tolerance Heated Optics: To eliminate condensation and icing on the window Warm up Time: 30 sec for transmitter and receiver Temperature Range: -55°C to +65°C (-67°F to +149°F) Immunity to False Alarms: Not influenced by solar radiation, hydrocarbon flames 14 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Technical Specifications Electrical Specifications Multiple Output Options: 0 -20 m. A current output; Sink (source option) HART 7. 0 protocol RS 485, Modbus compatible Power Supply: 24 VDC nominal (18 -32 VDC) Power Consumption: Detector: 150 m. A (200 m. A with heated window) Source: 200 m. A (260 m. A with heated window) Electrical Input Protection: per EN/IEC 50270 Electromagnetic Compatibility: EMI/RFI protected per EN/IEC 50270 15 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Technical Specifications Mechanical Specifications Enclosure: Stainless steel 316 L Cable entries: 2 x 3/4" – 14 NPT conduits or 2 x M 25 x 1. 5 mm ISO Dimensions: Detector/Source: 267 x 130 mm (10. 5" x 5. 1") Tilt Mount: 120 x 158 mm (4. 7" x 5. 5") Weight: Detector/Source: 5. 0 kg (11. 0 lb) Tilt Mount: 1. 9 kg (4. 2 lb) Ingress Protection: Water and Dust Tight 16 | 87 IP 66 and IP 68 NEMA 250 6 P

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Technical Specifications Approvals Ex Approvals: ATEX, IECEx (pending): Ex II 2 (2) GD Ex d e ib [ib Gb] IIB + H 2 T 4 Gb Ex tb IIIC T 135°C Db IP 66 Ta= (-55°C to + 65°C) TR CU (GOST R & K) Reliability Approval: TÜV SIL 2 approved per IEC 61508 (pending) Warranty: Saf. Eye system – 3 years Flash source bulb – 3 years 17 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Technical Specifications UV Flash Source (Tx) Unit No. Component 1 2 3 4 Front Window Section Label Main Housing / Enclosure Mounting Plate 6 7 8 10 Rear Cover Earth Terminal Front Window Cable Inlet / Entry 5 Junction Box 11 Indication LED The front window is heated to improve performance in icing, condensation and snow conditions. 18 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Technical Specifications Detector (Rx) Units No. Component 1 2 3 4 Front Window Section Label Main Housing / Enclosure Mounting Plate 7 8 9 10 Earth Terminal Front Window Handheld Fast Connection Cable Inlet / Entry 5 Junction Box 11 Indication LED 6 Back Cover The front window is heated to improve performance in icing, condensation and snow conditions. 19 | 87

Contents 1 2 3 4 5 6 7 8 9 10 Principle of Gas Detection Saf. Eye 950 & 960 Models and Types Saf. Eye 950 & 960 Benefits Saf. Eye 950 & 960 Technical Specifications Saf. Eye 950 & 960 Features & Functions Accessories Part Numbers Installation & Commissioning Testing & Maintenance Applications 20 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Features & Functions Saf. Eye 950 & 960 – Operational Modes: The Quasar 950/960 has four (4) operational modes: Ø Normal Mode Ø Maintenance Call Mode (3 m. A Output) Ø Fault Mode Ø Zero Calibration Mode (1 m. A Output) Normal Mode The Normal Mode is used for gas detection. In Normal Mode, the following statuses are possible: Ø Normal (N): Gases have been detected at safe levels Ø Warning (W)*: Gases have been detected at warning levels Ø Alarm (A)*: Gases have been detected at alarm levels Note: The user chooses these alarm levels at the controller. The Detector output is 4 m. A at zero reading and 20 m. A for full-scale reading. For the standard 0 -20 m. A output, the Warning and Alarm levels are not relevant. If the RS-485 output is used, the Detector changes its status from N to W at Warning level and to A at Alarm. 21 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Features & Functions Visual Indicators: One 3 -color LED indicator is located at the rear. Detector Status LED color LED mode Fault Yellow 4 Hz – flashing Alignment / Standby Yellow 1 Hz - flashing Zero Calibration Yellow Constant Normal Green 1 Hz - flashing Warning Red 2 Hz – flashing Alarm Red Constant Source Status LED color LED mode Fault Yellow 4 Hz – flashing Normal Green 1 Hz - flashing 22 | 87 Indicator LED

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Features & Functions Standard 0 -20 m. A Fully linearized 4 -20 m. A gas signal in accordance with gas concentration Current Reading Status and Description 0 m. A + 0. 2 m. A Fault 2 or Low Voltage (Critical) 1 m. A ± 0. 2 m. A Zero Calibration (In Progress) 2 m. A ± 0. 2 m. A Fault 1 (non-critical) 3 m. A ± 0. 2 m. A “Maintenance Call” 4 m. A ± 0. 2 m. A Zero reading – No gas present 4 -20 m. A Continuous measuring of gas concentration between 0 and full scale 21 m. A Concentration is over the range limit (more than full-scale deflection) 23 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Features & Functions Operational Modes: Maintenance Call Mode (3 m. A Output) The Maintenance Call Mode indicates a low signal or low signal ratio that may be caused by a dirty window, misalignment, poor source, or one of the Detector’s parameters is at the “limit” value. The Detector continues to function and reads any gas present, but provides a (3 m. A) pre-warning signal that a maintenance procedure is required. Zero Calibration Mode (1 m. A Output) This mode calibrates the base level from which the Detector read gas to zero. It should only be performed in the following situations: Ø There are no combustible gases present Ø A clear path exists between the UV Source and Detector Ø Clear weather conditions are present Zero Calibration must be performed after installation, re-alignment and window cleaning, by using the handheld unit, Host software on PC or the magnet.

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Features & Functions Fault Modes In Fault Mode, there are three fault types: Ø Fault 1 (2 m. A Output): Non critical This occurs due to a blockage, very low signal or partial obscuration, or full beam block. In this situation, detection is no longer possible. The Detector’s properation can be restored (Auto reset) during operation if the condition causing the problem is removed or resolved. This mode occurs after a delay of 60 sec. from the moment of the fault. This delay is important to eliminate momentary obscuration due to an object/person passing through the beam. Ø Low Voltage Fault (1 m. A Output) In this situation, detection is disabled due to low voltage being supplied to the Detector. The Detector returns to properation only when proper voltage level restored. Ø Fault 2 (1 m. A Output): Critical In this situation, the detection is disabled due to an electrical/software operational failure or a central device (memory, processor) fault. Such a fault causes the Detector to cease operation. If there is a fault in the 0 -20 m. A loop, the output is 0 m. A.

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Features & Functions Saf. Eye 950 & 960 – Function Set-Up: The functions to set: Ø Full Scale Deflection / Measuring Range Ø Analog Output mode Ø Background Zero Calibration Mode Ø Address Setup (RS 485) Ø Mode of Operation / Function Set-Up Ø Alarm Latch Ø Heated Optics Operation Ø Heat Mode Ø Heat on Temperature 26 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Features & Functions Saf. Eye 950 & 960 – Zero Calibration: There are several ways to perform and initiate a Zero calibration : Magnet Ø Magnet (Enclosure) Ø HART / RS 485 Handheld terminal Ø HOST Software RS 485 PC via Ø Handheld Fast Connection Port Ø Segregated Terminals 27 | 88

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Features & Functions Function Set-Up: Heated Optics This feature relates to the Detector only: Ø The heated optics can be defined as one of the following modes: Ø OFF: Not operated Ø ON: Continuously Ø AUTO: Per temperature change Ø In AUTO mode, the HEAT ON setting is 41°F (5°C). default Note: When operated per temperature change, the user can define the start temperature below which the window will be heated between 0 to 50°C. The Detector will stop heating the window when the temperature is 15°C above the defined temperature. The Source heated optic must be defined with the order in two options: Ø Heated continuously Ø Start heating below 41°F (5°C - Default ). 28 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Features & Functions HART Interface “HART” - Highway Addressable Remote Transducer. The HART Protocol provides two simultaneous communication channels: the 4 -20 m. A analog signal and a digital signal. The 4 -20 m. A signal communicates the primary measured value (in the case of a field instrument) using the 4 -20 m. A current loop. Additional device information is communicated using the digital signal (Frequency Shift Keying - FSK) that is superimposed on the analog signal. Saf. Eye 950 & 960 functionality via HART communication: Ø Detector Ø Display set-up Ø Reconfigure set-up Ø Detector health and status Ø Display detector status and definition Ø Perform detector diagnostic Ø Detector troubleshooting Saf. Eye 950 & 960 fully compatible with HART 7. 0 protocol and certified by HART.

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Features & Functions HART Interface Spectrex device descriptions are also compatible with the following Process Management Systems: Ø Meriam MFC-5150 X Ø Emerson Hand terminal 375 & 475 Ø SDC 625 Ø Simatic PDM, Siemens Ø ABB 800 x. A Ø Smar 401 Ø Honeywell MC Toolkit Configurator 30 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Features & Functions RS 485 Interface The RS-485 input/output sends complete data information to a PC and receives data or control commands from the PC. The protocol is Modbus compatible. The communication with the PC that is operated through the interface is executed only when used with appropriate Spectrex host software. 31 | 87

Contents 1 2 3 4 5 6 7 8 9 10 Principle of Gas Detection Saf. Eye 950 & 960 Models and Types Saf. Eye 950 & 960 Benefits Saf. Eye 950 & 960 Technical Specifications Saf. Eye 950 & 960 Features & Functions Accessories Part Numbers Installation & Commissioning Testing & Maintenance Applications 32 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Accessories – Tilt Mounting / Alignment bracket Ø All Saf. Eye open path gas detector systems need to be supplied with 2 stainless steel, Tilt Mounting / Alignment brackets to allow easy installation and direction of the detector to the required line of sight. • 33 | 87 Tilt mount Saf. Eye 9 xx Series (SS), p/n 888270

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Accessories: Ø Weather shield / cover: Protects the detector from extreme weather conditions, such as heavy snow and heavy rain. Material: Stainless Steel. • Saf. Eye 9 xx Sunshade (SS), p/n 888263 Ø U-Bolt / Pole Mount: The U-bolt mount is available to facilitate 5” pipe mounting. Material: Stainless steel • 34 | 87 Pole Mount (U-Bolt) 5" - (SS), p/n 799225

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Accessories Ø Commissioning Kit: The Commissioning/Alignment Kit is required for commissioning and maintenance checks. Only one kit is required per site. The kit includes: • 1 pc - Alignment Telescope • 1 pc - Magnetic Mode Selector • 1 pc - Function Check Filter • 1 set - Socket keys for access to units • 1 pc – USB / RS 485 Harness converter kit (non-Ex approved) for PC / laptop USB port, incl software. Connects via RS 485 terminals in safe area • Commissioning Kit Saf. Eye 950 (H 2 S), p/n 888847 -1 • Commissioning Kit Saf. Eye 960 (NH 3), p/n 888847 -2 35 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Accessories Commissioning, maintenance and diagnostics tools for the Quasar 9 xx Series, which provides verification, status and instructions for changing detector parameters. Includes cable harness with RS 485 / USB converter. Ø RS 485 Hand-Held Diagnostic Kit (Ex): Certified I. S. (Ex ia) for use in the hazardous area and connects to I. S. port on 950/960. • RS 485 Hand-Held Diagnostic Kit (Ex), p/n 799810 Ø HART Hand-Held Diagnostic Kit (Ex): Certified I. S. (Ex ia) for use in the hazardous area and connects to I. S. port on 950/960 • HART Hand-Held Diagnostic Kit (Ex), p/n 888810 Ø HART Hand-Held Harness Kit: For standard HART Hand-Held (I. S. ) to connect between the Hand-Held and the I. S. Port on 900, including a harness • 36 | 87 HART Hand-Held Harness Kit, p/n? ? ?

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Accessories: Commissioning, maintenance and diagnostics tools for the Quasar 9 xx Series, which provides verification, status and instructions for changing detector parameters. Includes cable harness with RS 485 / USB converter. Ø Mini Laptop Diagnostic Kit (Non-Ex): preloaded with Spectrex software. For use in Safe area only. Connects, for convenience, to I. S port on 950 or RS 485 terminals. • Mini Laptop Diagnostic Kit (Non-Ex), p/n 777820 Ø USB / RS 485 Converter Kit: This kit with RS 485/USB converter, is used with Spectrex Host software, enables the user to connect to any available PC or laptop to re-configure settings or perform diagnostics on Quasar 900 series. For use in Safe area only. Connects, for convenience, to I. S port on 950 or RS 485 terminals • USB / RS 485 Converter Kit, incl. SW, p/n 794079 -6 (included in Commissioning kit 37 | 87

Contents 1 2 3 4 5 6 7 8 9 10 Principle of Gas Detection Saf. Eye 950 & 960 Models and Types Saf. Eye 950 & 960 Benefits Saf. Eye 950 & 960 Technical Specifications Saf. Eye 950 & 960 Features & Functions Accessories Part Numbers Installation & Commissioning Testing & Maintenance Applications 38 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Part Numbers Saf. Eye 950 & 960 Series Part No. definition: Receiver Part code example: QRU-C-112 Ø Ø QRU 1 1 2 Receiver H 2 S gas detector Standard ¾ NPT cable entry Part code example: QTU-C-211 Ø Ø QTU 2 1 1 39 | 87 Transmitter / Source Medium Range 15 -40 m Standard M 25 cable entry Transmitter

Contents 1 2 3 4 5 6 7 8 9 10 Principle of Gas Detection Saf. Eye 950 & 960 Models and Types Saf. Eye 950 & 960 Benefits Saf. Eye 950 & 960 Technical Specifications Saf. Eye 950 & 960 Features & Functions Accessories Part Numbers Installation & Commissioning Testing & Maintenance Applications 40 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Installation Guidance: The Source (Tx) and Detector (Rx) The appropriate Detector should be selected for the length of open path to be monitored. To allow for ageing of the Source and a reduction of the UV signal due to adverse weather, we recommend using a Detector that is not at the limit of its operating range. The open path between the Source and Detector, and the immediate surroundings, should be kept clear of obscuration that might hinder the free movement of air in the protected area or block the infrared beam. Guidance Tips for Gas Detector Locations The following are guidance tips for gas detector locations, in order to provide the best detection coverage: Ø For heavier than air gases: below potential leak source Ø For lighter than air gases: above potential leak sources Ø Along the expected leak trajectory: near to leak sources, taking into account prevailing wind directions Ø Between leak source and potential ignition sources Ø In areas with expected heavy fog, rain or snow, consider the effect of long range installation and install the Detector at a shorter range, with the maximum intensity model available.

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Gas behaving indifferent Gas jet Elevated / pressurised release Gas lighter than air: buoyant gas Hydrogen Methane Ammonia Acetylene Gas heavier than air: dense gas Carbon dioxide Propane Chlorine Benzene Phosgene Gas behaving like dense gas liquefied gas

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Saf. Eye 950 & 960 – Installation Guidance: Guidance tips for gas detector locations in order to provide the best detection coverage: Ø The appropriate detector should be selected for the length of open path to be monitored. Ø To allow for ageing of the source and a reduction of the UV signal due to adverse weather, we do not recommend using a detector at the limit of its operating range. Ø As a guide, select a detector that is installed at a distance from the source of not more than 75% of the specified operating distance. Ø In severe weather conditions, such as offshore oil production and exploration, this should be reduced to 50%. Ø The open path between the source and detector and the immediate surroundings should be kept clear of obscuration that might hinder the free movement of air in the protected area or block the infrared beam. Note: Installation shall be carried out by suitably trained personnel in accordance with the applicable code of practice such as. EN 60079 -14 and EN 60079 -29 -2.

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Saf. Eye 950 & 960 – Installation Guidance: Certification Instructions Warning: Do not open the Detector, even when isolated, in a flammable atmosphere. Use the following certification instructions: Ø The cable entry point may exceed 182°F (83°C). Suitable precautions should be taken when selecting the cable. Ø The equipment may be used with flammable gases and vapors with apparatus groups IIA and IIB +H 2 T 4 in the ambient temperature range -67°F (-55°C) to +149°F (+65°C). Ø Installation should be carried out by suitably trained personnel, in accordance with the applicable code of practice e. g. EN 60079 -14. Ø Inspection and maintenance of this equipment should be carried out by suitably trained personnel, in accordance with the applicable code of practice e. g. EN 60079 -17. 44 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Wiring: For wiring, use color-coded conductors or suitable wire markings or labels. The wire cross-section must be between 1 mm² to 2. 5 mm² (18 - 14 AWG). The selected wire gauge should be based on the number of Detectors used on the same loop, and the distance from the control unit. The maximum number of wire connections in one terminal is two (2) wire cross-sections, each of 1 mm². Conduit/Cable Installation The conduit and cable installation must comply with the following guidelines: Ø To avoid water condensation in the Detector, install it with the conduits/cable entries facing downwards. Ø Use flexible conduits/cables for the last portion that connects to the Detector. Ø When pulling the cables through the conduits, ensure that they are not tangled or stressed. Extend the cables about 12 inches (30 cm) beyond the Detector location to accommodate wiring after installation. Ø After the conductor cables have been pulled through the conduits, perform a continuity test. To fully comply with EMC directive and protect against interference caused by RFI and EMI, the cable to the detector must be shielded and the detector must be grounded. The shield should be grounded at the detector end.

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Detector & Tilt Mount Assembly : No. Description 1 Tilt Mount Holding Plate 2 Detector/Source Holding Plate 3 Horizontal Crude Alignment Tightening Screw 4 Horizontal Fine Alignment Tightening Screw 5 Vertical Fine Alignment Tightening Screw 6 Vertical Crude Alignment Tightening Screw 7 Vertical Find Alignment Screw 8 Horizontal Fine Alignment Screw 9 Detector Tightening Screw 10 Detector Tightening Washer 11 Detector 12 Telescope 13 Telescope Tightening Bolt 14 Detector Back Cover 15 Detector Back Cover Secure Bolt

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Saf. Eye 950 & 960 – Tilt Mount Assembly: No. Description 1 Tilt Mount Holding Plate 2 Detector/Source Holding Plate 3 Horizontal Crude Alignment Tightening Screw 4 Horizontal Fine Alignment Tightening Screw 5 Vertical Fine Alignment Tightening Screw 6 Vertical Crude Alignment Tightening Screw 7 Vertical Find Alignment Screw 8 Horizontal Fine Alignment Screw 47 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Detector / Source Installation The Detector and the Source can be installed in two (2) ways with the same Tilt Mount. To install the Detector / Source: 1. Place the Tilt Mount holding plate in its designated location and secure it with four (4) fasteners through four (4) holes of diameter 8. 5 mm. Notes: Ø Skip this step if the Tilt Mount is already installed. Ø Detector removal for maintenance purposes does not require Tilt Mount removal. 2. Place the Detector, with its conduit/cable inlets pointing downwards on the Detector holding plate of the Tilt Mount. Secure the Detector with a M 10 x 1. 5 screw with No. M 10 spring washers (9, 10). Secure the Detector to the Tilt Mount using Hex Key No. 7 for M 10 x 1. 5 screws (item 9). 3. Repeat steps 1 – 2 to install the Source. 48 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Saf. Eye 950 & 960 – Installation: Connecting the Detector 1. Release the rear cover securing bolt, and open the Detector rear cover. The terminal chamber is now exposed. 2. Remove the protective plug mounted on the Detector conduit/cable entry inlet, and pull the wires through the Detector inlet. Use a 3/4” – 14 NPT or M 25 x 1. 5 explosion-proof conduit connection/cable gland to assemble the cable/explosion-proof conduit to the Detector. 3. Connect the wires to the required terminals according to the wiring diagram. See Detector Terminal Wiring. 4. Connect the grounding wire to the ground screw outside the Detector. The Detector must be well grounded to Earth Ground. 5. Place and secure the Detector rear cover by screwing the cover and securing it using the secure bolt. 49 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Saf. Eye 950 & 960 – Wiring Options: UV Source (Tx) Wiring Terminal No. Function 1 Power +24 VDC 2 Return -24 VDC 3 Spare 4 Spare 5 RS-485 (+) 6 RS-485 (-) No. 1 2 3 4 50 | 87 Component Housing / Enclosure Terminal Board Earth Terminal Inlet Conduit No. 5 6 7 Component Internal Earth Connection N/A Source Holding Plate

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Saf. Eye 950 & 960 – Wiring Options: Detector (Rx) Wiring Terminal No. Function 1 Power +24 VDC 2 Return -24 VDC 3 0 -20 m. A (Input) 4 0 -20 m. A (Output) 5 RS-485 (+) 6 RS-485 (-) No. Component No. 1 Housing / Enclosure 5 2 Terminal Board 6 3 4 Earth Terminal 7 51 | 87 Inlet Conduit Component Internal Earth Connection to Handheld Unit Source Holding Plate

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Saf. Eye 950 & 960 – Wiring Options: Detector terminals / wiring 52 | 87 Source terminals / wiring

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Saf. Eye 950 & 960 – Wiring Options: 0 -20 m. A Sink 4 -Wire 53 | 87 0 -20 m. A non-isolated Sink 3 -Wire

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Saf. Eye 950 & 960 – Wiring Options: 0 -20 m. A Sink 3 -Wire 54 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Saf. Eye 950 & 960 – Wiring Options: RS-485 Networking By using the RS-485 network capability of the Saf. Eye Quasar 950 & 960 detector and additional software, it is possible to connect up to 32 Detectors in an addressable system with four (4) wires only (2 for power and 2 for communication). Using repeaters, the number of Detectors can be much larger (32 Detectors for each repeater) up to 247 on the same four (4) wires. When using the RS 485 network, it is possible to read each Detector status (FAULT, WARNING, and ALARM). 55 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Saf. Eye 950 & 960 – Detector Alignment: Ø The telescope includes a periscope that consists of a prism and an ocular located vertical to the Telescope assembly. Ø Prior to telescope installation, the telescope and its mounting site need to be free from any dirt, to ensure proper alignment according to factory calibration. 56 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Saf. Eye 950 & 960 – Powering up the System: Important! Prior to any operation or maintenance, follow the Safety Precautions. ➣ To power up the system: 1. Make sure that the Source and Detector are connected to power. 2. Make sure that the 4 -20 m. A meter is connected to the Detector. 3. Power up the system using 18 -32 VDC. 4. After 30 seconds, the current meter indicates 4 m. A. Note: Perform Zero Calibration after powering up the system Safety Precautions: After power up, the Detector requires minimal attention for proper functioning, but the following should be noted: 1. Follow the instructions in the manual, and refer to the drawings and specifications issued by the manufacturer. 2. Do not open the Detector/Source housing while power is supplied. 3. Disconnect external devices, such as automatic extinguishing systems, before carrying out any maintenance task required by warranty.

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Saf. Eye 950 & 960 – Function Set-Up: The functions to set: Factory default settings: Ø Full Scale Deflection / Measuring Range Ø Full Scale Deflection – 500 ppm m Ø Analog Output mode - continuous Ø Background Zero Calibration Mode - Enabled Ø Address Setup (RS 485) -1 Ø Mode of Operation / Function Set-Up Ø Alarm Latch – Non Latching Ø Beam Block During Alarm Indication – No Latching Ø Heated Optics Operation Ø Heat Mode - Auto Ø Heat on Temperature - +5°C 58 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Saf. Eye 950 & 960 – Zero Calibration: Precise alignment must be performed prior to the zero calibration procedure. Zero calibration should be performed in good weather conditions with insignificant gas concentrations in the surrounding environment or indoors. Switching from each position (first three instructions below) can be done by HOST HART or RS 485, or by moving the magnetic mode selector above the magnetic switch (see sketch). 1. Switch from ‘Normal’ to ‘Alignment’ mode indication. 2. Switch from ‘Alignment’ to ‘Standby’ mode. 3. Switch from ‘Standby’ to ‘Zero Calibration’ mode. Ø The 0 -20 m. A output should now be at 1 m. A. Ø Wait up to 60 seconds until it switches to ‘Normal’ mode. Ø The detector reading is now set to normal. Ø The 0 -20 m. A output should now indicate 4 m. A. 59 | 87 Magnet

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Installation & Commissioning Functional Check: The Functional Check Filter is a convenient operational check used to confirm that the response has not changed from previous readings. The filter is not used for calibration, since it is not necessary in the procedure, nor does it equate to a particular quantity of gas. Notes: 1. This functional verification procedure is for a standard 0 -20 m. A output. 2. Prior to starting the Functional check, verify that the power to the units is on, and that the current of the 0 -20 m. A channel is stable. Record the reading. To perform the functional check: 1. Position the Functional Check Filter in front of the Saf. Eye Detector. 2. Center the Functional Check Filter’s window over the viewing window of the Detector. 3. Wait 20 seconds. 4. Read the 0 -20 m. A current. Determine the difference between the reading taken with and without the Functional Check Filter. This difference is the 0 -20 m. A current variance. 5. Record the 0 -20 m. A current variance in the Maintenance Logbook. If the variance is more than a 30% change when compared to the previous check (see delivery form), repeat the alignment. Caution: Do not allow automatic activation, and disconnect any external device that should not be activated during the Calibration check.

Contents 1 2 3 4 5 6 7 8 9 10 Principle of Gas Detection Saf. Eye 950 & 960 Models and Types Saf. Eye 950 & 960 Benefits Saf. Eye 950 & 960 Technical Specifications Saf. Eye 950 & 960 Features & Functions Accessories Part Numbers Installation & Commissioning Testing & Maintenance Applications 61 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Testing & Maintenance & Troubleshooting General Maintenance Saf. Eye Quasar 950/960 requires only simple periodic maintenance to provide satisfactory service and achieve maximum performance. The Detector and Source units can be maintained with the use of common tools and equipment. Record the periodic test results in a Maintenance Logbook with a copy of the delivery form inside. Note: Inspection and maintenance of this equipment shall be carried out by suitably trained personnel in accordance with the applicable code of practice such as EN 60079 -17. Periodic Maintenance It is recommended that the Source and Detector viewing windows be kept as clean as possible, as it is an active device. Perform proper maintenance periodically to allow the Saf. Eye system to retain maximum performance and reliability. To perform periodic maintenance: : 1. Perform alignment procedures each time that the Source or the Detector unit has been opened or moved for any reason. 2. The Signal Verification Check corroborates the current signals from the UV Source compared to that of previous alignments. It is recommended to perform this check every 6 -12 months. The signal should be checked according to threshold levels. 3. Perform the Functional Check every 6 months 4. Perform the alignment procedure only if the signals are below threshold value 5. Perform Zero Calibration every time the Detector or Source is realigned or the windows are cleaned. Note: The frequency of cleaning operations is ultimately dependent upon the existing environmental conditions and the application.

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Testing & Maintenance Routine Optical Surface Cleaning To clean the optical window, proceed as follows 1. Turn off the power to the Saf. Eye detector and source. 2. Where dust or dirt has accumulated, clean the optical surface with a small, soft-bristle brush. 3. The surfaces must then be washed thoroughly with water and a mild non-abrasive detergent. 4. Thoroughly rinse the glass surface with clean water; ensuring no residue is left behind. 5. Dry the glass with a clean dry soft cloth. 6. Enter in the maintenance logbook: date, name of person and company who performed the maintenance service. 7. Turn on power to the Saf. Eye detector and source. 8. Perform signal verification. 9. Perform zero calibration. 10. Perform functional check. Note: Maintenance should be performed by suitably qualified personnel, who are familiar with local codes and practice. Maintenance requires ordinary tools. 63 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Testing & Maintenance & Troubleshooting Signal Verification The Signal Verification check determines the properation of the open path. It checks the alignment and cleanliness of the window or any problem in Source or Detector. Use the PC Host software to measure the signal verification. Functional Check of Unit The Saf. Eye Quasar has been calibrated at the factory per the user’s specific gas or vapor detection requirements. This procedure validates the functional operation. The functional check should be performed periodically. To perform the functional check: 1. Position the Function Check Filter in front of the Saf. Eye Detector. 2. Center the Function Check Filter’s window over the viewing window of the Detector. 3. Wait 20 seconds. 4. Read the 0 -20 m. A current. Determine the difference between the reading taken with and without the Function Check Filter. This difference is the 0 -20 m. A current variance. 5. Record the 0 -20 m. A current variance in a Maintenance Logbook. If the variance is more than a 30% change when compared to the previous check (see delivery form), repeat the alignment. Caution: Do not allow automatic activation, and disconnect any external device that should not be activated during the Calibration check. 64 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Testing & Maintenance Problem Cause Corrective Action “Maintenance call” status or R, S 1 and S 2 are below 2. 5 V DC at Gain 4 Poor alignment Perform alignment Dirt on the window Clean the window Poor light source Replace the light source Detector fault Replace/repair Detector Gas in the path Make sure that the path is clean and the weather conditions are good NQRat 1 and NQRat 2 above the permitted limit Poor alignment Perform alignment R/N, S 1/N, S 2/N below 50 Poor alignment Perform alignment Dirt on the window Clean the window Poor light source Replace the light source Detector fault Replace/repair Detector NQRat 1 and NQRat 2 below the permitted limit Temperature higher than 25° C beyond the room temperature Electronic problem Replace/repair Detector Electronic problem Temperature higher than 25° C beyond the room temperature Ratio 1 and Ratio 2 out of the limit Poor alignment Perform alignment Dirt on the window Clean the window Detector fault Replace/repair detecor Low input voltage Voltage less than 16 V DC. The Detector at “V” fault Check the power supply and installation Replace/repair Detector

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Testing & Maintenance Host through RS 485 - General Description The Main window is divided into main areas: Device / Model Information Detector Measurement Data Indication of Device and Communication Status Toolbar: Enables access to various control and diagnostic functions. 66 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Testing & Maintenance Signal Verification Channel Short Range Medium Range Long Range Maintenance 5 m 20 m 15 m 40 m 35 m 80 m Reference 2 V Gain 0 1. 5 V Gain 2 2 V Gain 0 1 V Gain 1 2 V Gain 1 1 V Gain 2 The minimum signal allowed is 2 V at Gain 4 Signal 1&2 2 V Gain 0 1. 5 V Gain 2 2 V Gain 0 1 V Gain 1 2 V Gain 1 1 V Gain 2 The minimum signal allowed is 2 V at Gain 4 Ratio 1&2 0. 6 – 1. 4 0. 5 - 3 NQRat 1&2 0. 97 – 1. 03 Must be 0. 97 – 1. 03 ppm x m 0 ppm x m Temp Voltage 67 | 87 Up to 25°C beyond room temp. 32 VDC > V > 18 VDC

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Testing & Maintenance Detector Status Description 0 -20 m. A Output SSU 90 SSU 91 SSU 92 VVV 81 VVV 82 VVV 83 PPP 71 PPP 72 PPP 73 PPP 74 FFF 35 FFF 36 FFF 40 FFF 41 Startup Return from parameter restoration Return from low voltage Wrong 5 V Wrong Vdd Wrong Vin Program memory CRC failure Parameters memory CRC failure Setup memory CRC failure RAM CRC failure Noise or wrong offset in Sensor 1 Noise or wrong offset in Ref Noise or wrong offset in Sensor 2 Wrong 12 V Shortcut between channels NNN 3 4 -20 m. A circuit failure 0 m. A XXX 0 SSU 0 GGG 0 Alignment Start-up / stand by Zero Calibration 1 m. A OON 42 Wrong Flash Rate 2 m. A OON 0 Obscuration 2 m. A RON 0 Signal Obscuration KON 0 Absorption (low signal) 0 m. A 2 m. A

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Testing & Maintenance Detector Status Description 0 -20 m. A Output PON 0 Q 0 obscuration 2 m. A ION 0 Saturation 2 m. A YON 0 Obscuration delay 2 m. A CON 0 Obscure C (lot of calibration) – no gas detection MBN 0 Misalignment 2 m. A OMN 0 Maintenance call for signal 3 m. A RMN 0 Maintenance call for ratio 3 m. A NNN 0 Normal 4 m. A NNN 7 Heater Fail 4 m. A BBN 0 BLOCK 4 m. A ZBN 0 R-LEL (high rise of REF) 4 m. A EBN 0 Diff LEL 4 m. A HBN 0 Fast Obscuration 4 m. A -b. N 0 Lot of wetting (block Att) 4 m. A TNN 0 Pre Alarm 4 m. A WWN 0 Warning 14 m. A AAN 0 Alarm 20 m. A JAN 0 Disturbance while alarm 20 m. A LAN 0 Alarm latching 20 m. A 2 m. A

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Testing & Maintenance Setup Table Window Gas Type Description H 2 S 100% H 2 S HIGH LOW 200 ppm x m Full scale 500 ppm x m Full scale (default) YES NO Latching in alarm state No latching in alarm state (default) DISCRETE CONTINUOUS Discrete reading of the 4 -20 m. A output according to the detector’s status Continuous reading of the 4 -20 m. A output reading (default) ENABLE DISABLE Name Description Enable Background zero calibration (default) Disable Background zero calibration OFF Heater always in OFF mode AUTO On, per temperature change (default) ON Heater always in ON mode Heater ON at (˚C) NO LATCH Non latching position of alarm indications during blocking mode (default) Alarm output indications are latched when the detector turns to blocking position. Latching reset can be provided only if the detector turns to normal mode. 70 | 87 0, 5 (default), 10, 15, 20, 25, 30, 35

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Testing & Maintenance Window 71 | 87 Parameter Description Gain Level Electronic amplification. Signal 1 Voltage signal of sensor 1 after electronic amplification (depends on gain). Reference Voltage signal of reference after electronic amplification. Signal 2 Voltage signal of sensor 2 after electronic amplification (depends on gain). Ratio 1 Ratio between sensor 1 and reference. Ratio 2 Ratio between sensor 2 and reference. NQRatio 1 / QO 1 (Normalized ratio 1) Equals 1 when no gas is present and goes down when gas is introduced. NQRatio 2 Ratio 1 / QO 2 (Normalized ratio 2) Equals 1 when no gas is present and goes down when gas is introduced. PPM x M Part per million x meter Temperature The temperature inside the detector in °C. Voltage Detector voltage.

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Testing & Maintenance Window Parameter Description Ref/Noise Reference / Noise. Sig 1/Noise Signal 1 / Noise. Sig 2/Noise Signal 2 / Noise. Status Current status Total Operating Time Detectors operating hours. F 9 - Checks signals to noise. F 10 - Cancels the F 9 check and returns to normal operation Align – switch from 1. Normal to Alignment mode 2. Alignment to Standby 3. Standby to Zero Calibration 72 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Testing & Maintenance Logging Detector Events Ø You can use the computer with the Win. Host software to log the events of the detector, for diagnostic and other purposes. Ø When you start logging, you set the log file period in minutes. Ø A line is subsequently written to the log whenever that number of minutes passes (for example, every two minutes) and whenever there is a change in the status of the detector. Ø Each line in the log notes the following information: - Detector serial number - Detector gain - Detector status - Date and time - Detector temperature - Detector data channels, Rat 1, Rat 2, NQR 1, NQR 2, LEL. 73 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Testing & Maintenance Saf. Eye Root Menu When HART communication is established, the first menu displayed is the Saf. Eye Root Menu: 1 Manufacturer Spectrex Inc. Read 2 Model Saf. Eye 950 or 960 Read 3 Dev. ID Device Unique identification number Read 4 Dev. Model Device sensor type (see Annex B, Table B 1: Gas Detection Sensor Type Codes). Read 5 PV Snsr s/n Serial Number of this device. Read 6 Tag 7 Long Tag 8 Descriptor 9 Message 10 Final asmbly num 11 Date Any Date chosen by the operator to be used for any purpose. R/W 12 Status Indicates a field device condition see Annex A Read 13 Status Menu Current operating status and diagnostic information. Menu 14 Device Setup Menu Provides Access to various setup and configurations Menu 15 HART Output Menu HART Specific Variables Menu 74 | 87 Text that is associated with the field device installation (16 chars). This text can be modified and used by the operator any way. Text that is associated with the field device installation (32 chars). This text can be modified and used by the operator any way. Text associated with the field device that can be used by the operator in any way. A number that is used for identification purposes, and is associated with the overall field device. R/W R/W R/W Saf. Eye Root Menu 1. Manufacturer 2. Model 3. Dev. ID 4. Dev. Model 5. PV Snsr s/n 6. Tag 7. Long Tag 8. Descriptor 9. Message 10. Final asmbly num 11. Date 12. Status 13. Status Menu 14. Device Setup Menu 15. HART Output Menu

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Testing & Maintenance Saf. Eye Status Menu: 1 0 -20 Value The actual analog output of the Fire Detection Channel. 2 Gas Detection Value The Gas reading in PPM*M Read 3 Internal Temperature Actual integral temperature of the detector (in deg C). Read 4 Input Voltage Actual detector's supply voltage. Read 5 Heater Control Indicates if the heater control is manual or automatic. Read 6 Heater State Indicates the current state of the heater (ON or OFF). Read 7 Operating Time Displays the total detector's operating time from last power up. Read 8 Status Indicates a field device condition see Annex A Read 9 Detector's Gain The current amplifying level of the detector Read 10 Signal 1 The reading of signal 1 Read 11 Signal 2 The reading of signal 2 Read 12 Reference Signal The reading of reference signal Read 13 NQRatio 1 Normalized Ratio 1. Read 14 NQRatio 2 Reference to Noise 15 Ratio Signal 1 to Noise 16 Ratio Signal 2 to Noise 17 Ratio Change detector's 18 working mode. Normalized Ratio 2. Calculation of the SNR on Reference signal. The Detector must be at SNR test mode. Read Calculation of the SNR on signal 1. The Detector must be at SNR test mode. Read Calculation of the SNR on signal 2. The Detector must be at SNR test mode. Read The working modes are-Normal mode, Alignment, Stand-By, Calibration. This Button button does the operation of the magnet. 19 Enter/Exit SNR test Entering and exiting to/from SNR test mode. 20 SNR Test Read Indicates if the detector currently at SNR test mode. The detector is not operational at SNR test mode. Button Read

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Testing & Maintenance Saf. Eye Device Setup Menu: 1 Manufacturer Spectrex Inc. Read 2 Model Saf. Eye 950 or 960 Read 3 Device Model Device sensor type (see Annex B, Table B 1: Gas Detection Sensor Type Codes). Read 4 Dev ID Device unique identification number. Read 5 Config. Changed Counter The number of Device Configuration changes since the manufacture. Read 6 Enable Alarm Latch Enable alarm relay to stay energized after exiting the Alarm Mode. R/W 7 0 -20 Output Mode 0 -20 m. A continuous or discrete values for Normal, Warning, Alarm R/W 8 Beam Block during Alarm Latching at Alarm mode in case of Beam Block during Alarm R/W 9 Flash Rate The actual Flash Rate Read 10 Background Zero Calibration Enable the detector to perform constant zero calibration to adapt to external conditions. R/W 11 Full Scale Sensitivity 2 modes of full scale available – 500 ppm. m or 200 ppm. m R/W 12 Gas Type Gas type that the detector should detect. R/W 13 Heater Modes available- Auto, On, Off. R/W 14 Heater On Temp. This option is active in Heater Auto mode – it allows the operator to set the temperature at which the optics heater begins operating. R/W 15 Poll Address used by the host to identify a field device. R/W 16 Loop Current Mode Enables choice between fixed or not fixed current mode. R/W

Contents 1 2 3 4 5 6 7 8 9 10 Principle of Gas Detection Saf. Eye 950 & 960 Models and Types Saf. Eye 950 & 960 Benefits Saf. Eye 950 & 960 Technical Specifications Saf. Eye 950 & 960 Features & Functions Accessories Part Numbers Installation & Commissioning Testing & Maintenance Applications 77 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Applications Oil & Gas – H 2 S: Ø Exploration & Extraction: Off-/ onshore oil & gas platforms and rigs, FPSO’s & FLNG* Ø Gas Processing: LNG/LPG facilities, Gas sweetening systems, … Ø Production & Refining: chemical and petro-chemical plants, … *Floating Production Storage and Offloading Unit, Floating Liquefied Natural Gas 78 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Applications Oil & Gas Processing: Natural-gas processing plants purify raw natural gas extracted from underground gas fields or at the surface from fluids produced by oil wells. Raw natural gas comes primarily from any one of three types of wells: crude oil wells, gas wells, and condensate wells. Natural gas is termed sweet gas when relatively free of hydrogen sulfide. however, Gas contain hydrogen sulfide is called sour gas. Natural gas, or any other gas mixture, containing significant quantities of hydrogen sulfide, carbon dioxide, or similar acidic gases is termed acid gas. 79 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Applications Typical Composition of Natural Gas: Hydrocarbons Cx Hy 70 -90% Carbon Dioxide CO 2 0 -8% N 2 0 -5% H 2 S 0 -5% Nitrogen Hydrogen Sulfide Water, Oxygen, etc. Hydrogen Sulfide: CAS: 7783 -06 -4 1% Typical Composition of Sour Gas: Hydrocarbons Carbon Dioxide Cx Hy CO 2 74% 9% Hydrogen Sulfide H 2 S 15% Water, Oxygen, Nitrogen etc. H 2 S – TWA*: AGS 5 ppm = 0, 0005 Vol% OSHA 4 ppm = 0, 0004 Vol% *8 hour time-weighted average (TWA) 80 | 87 1% Concentrations over 1000 ppm cause immediate collapse with loss of breathing, even after inhalation of a single breath.

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Applications H 2 S Detection within the Oil & Gas Segment: • Germany, Großenkneten • Oman • Kazakhstan, Tengiz *natural gas production in cubic meters per year 81 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Applications Germany, Großenkneten Natural Gas Processing Plant Amount of : Natural Gas 6 Mrd. m 3 / a Sweet Gas 4, 8 Mrd. m 3 / a Sulfur 800. 000 t / a Fence line monitoring & point gas detectors Ap p. 70 0 m dis tan 82 | 87 ce

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Applications Kazakhstan, Tengiz field Drilling area App. 15 km distance Sulfur storage Processing Plant & Refinery 83 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Applications Kazakhstan, Tengiz field Flares Fence Line for H 2 S Detectors 2 nd Processing Plant 84 | 87

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Applications Ammonia NH 3: Ammonia is a colorless gas with a characteristic pungent smell. It is lighter than air, its density being 0. 589 times that of air. It is easily liquefied due to the strong hydrogen bonding between molecules; the liquid boils at − 33. 3 °C (− 27. 94 °F), and freezes at − 77. 7 °C (− 107. 86 °F) to white crystals. Combustion - when mixed with oxygen, it burns with a pale yellowish-green flame. At high temperature and in the presence of a suitable catalyst, ammonia is decomposed into its constituent elements. Ignition occurs when chlorine is passed into ammonia, forming nitrogen and hydrogen chloride; if chlorine is present in excess, then the highly explosive nitrogen trichloride (NCl 3) is also formed. Flammability: PTB: LEL 15 vol% NIOSH: LEL 15 vol% UEL 34 vol% UEL 28 vol% Threshold limit values – TLV: EU: LTV 20 ppm (0. 002 vol%) NIOSH: LTV 25 ppm (0. 0025 vol%) LTV / TWA – Long time value – 8 h time weighted average STEL - Short time exposure limit – 15 min average 85 | 87 STEL: 50 ppm (0. 005 vol%) STEL: 35 ppm (0. 0035 vol%) Ammonia: CAS: 7664 -41 -7

Toxic Open Path Gas Detector Saf. Eye 950 & 960 Applications Chemical Industry and Food & Beverage – NH 3: Ø Production: Fertilizer Production, Pulp & Paper, Process Areas, … Ø Storage & Handling: Refrigerant Gas Storage, Room monitoring, … 86 | 87

Thank you for your attention.