Oxygen Measurement Systems High Reliability and Wide Application Coverage

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1 Introduction High Process Efficiency Under Any Condition Oxygen Measurement Systems High Reliability and Wide Application Coverage METTLER TOLEDO provides sensors to measure dissolved oxygen (DO) in demanding low ppb-level applications. Measurement of dissolved oxygen Proper oxygen levels are important in many processes involving the use of pure and ultrapure water. Control of dissolved oxygen will ultimately ensure product quality,reduce costs and provide maximum product yield. Electrochemical oxygen sensors The Thornton high-performance sensors have been designed for in-line measurements of dissolved oxygen in the low ppb-range in power plant cycle chemistry and in ultrapure water applications of the semiconductor industry. Optical oxygen sensors The optical dissolved oxygen sensor with its durable OptoCap sensing element ensures fast response time, highly accurate measurement capability, reduced maintenance, and no dissolved hydrogen interference. The high performance oxygen sensor excels in low ppb- applications providing high accuracy and rapid response without hydrogen interference. Professional service and validation Sensor service includes rebuilding, cleaning, testing, and recertification of your Thornton sensor, done quickly and efficiently to minimize downtime. High Performance DO Sensor Optical DO Sensor 36 METTLER TOLEDO US and Canada

2 Sensors Dependable Low Level Measurement High Performance Sensors with ISM Fast, Accurate Response METTLER TOLEDO Thornton s high performance ppb-level dissolved oxygen measurement capability for M300 ISM and M800 excels in the demanding low ppb-level applications. It provides a precise zero and a highly accurate response over the entire range of measurement. This allows it to perform well at any level as well as providing very fast response to changes from one level to another. Specifications Sample flowrate 50 to 1,000 ml / min Sample temperature 0 to 60 C (32 to 140 F) for temperature compensation; can tolerate 100 C (212 F) Sample pressure 0 to 5 bar(g) (0 to 72 psig) Sample connections 1 4" NPT Wetted materials Polyacetal flow housing, polyphenylene sulfide probe body, PTFE membrane reinforced with stainless steel and silicone rubber, Viton and silicone rubber O-rings Cable length Probe to instrument: 1 to 10 m (3 to 33 ft) for M300; up to 61 m (300 ft) for 770MAX Weight 1 kg (2 lb) with flow housing Response time 98 % of final value in 90 s Operating range 0 10,000 ppb (µg / l) System accuracy ± 1 % of reading or 1 ppb, whichever is greater; ± 0.5 C Components included DO probe with spare electrolyte Housing ( ) and cable (and preamp with 770MAX) Viton and Kalrez are registered trademarks of DuPont Performance Elastomers LLC Features Overview Very fast response High accuracy Simple maintenance with drop-in modular membrane Excellent long-term stability Temperature compensation for membrane permeability and oxygen solubility effects Typical Applications Power plant cycle chemistry monitoring Semiconductor ultrapure water Pure water treatment systems / Thornton-DO 38 METTLER TOLEDO US and Canada

3 Microelectr. Power Ordering Information ISM Order Number High Performance DO probe, flow housing and 1 m (3 ft) AK9 cable High Performance DO probe, flow housing and 3 m (10 ft) AK9 cable High Performance DO probe, flow housing and 5 m (16 ft) AK9 cable High Performance DO probe, flow housing and 10 m (33 ft) AK9 cable Replacement DO probe Used With M300 High Performance DO probe, housing and 1 m (3 ft) VP cable High Performance DO probe, housing and 3 m (10 ft) VP cable High Performance DO probe, housing and 5 m (16 ft) VP cable High Performance DO probe, housing and 10 m (33 ft) VP cable Spare parts and accessories for all high performance sensors Replacement High Performance DO probe Maintenance kit (electrolyte and 4 membranes) Polarization module (for portable use) Dimensions of the ISM High Performance Sensor Did You Know The fast response of high performance DO sensors allows real-time tracking of start-up deaeration. Approximately 200 mm (8") AK9 Connector ¼" NPT Outlet Mounting Holes 6.53 mm ( 0.257") Thru (2 Places) Probe 78.2 mm (3.08") 74.7 mm (2.94") mm (4.28") 17 mm/(0.67") 19.1 mm (0.75") 30 mm (1.18") 7.9 mm (0.31") ¼" NPT Inlet 38.1 mm (1.50") 18.8 mm (0.74") 19.1 mm (0.75") 45.7 mm (1.80") METTLER TOLEDO US and Canada 39

4 Sensors Proven Quality, Top Performance NEW! Pure Water Optical Sensor Intelligent Diagnostics, Low Maintenance, Rapid Response Optical technology in 12 mm design is now also available for power plant & semiconductor applications. These innovative optical sensors offer high performance together with reduced and simplified maintenance. The outstanding measurement performance with low detection limit, minimum drift and short response time improves oxygen monitoring to minimize corrosion. ISM ISM technology helps to make optical oxygen measurement simple and more reliable. Thanks to the Dynamic Lifetime Indicator (DLI) and Adaptive Calibration Timer (ACT), maintenance planning becomes easy and the risk of sensor failures during production time is highly reduced. Features Overview Plug and Measure Longer maintenance interval Immediate availability, no need for polarization No electrolyte handling Low detection limit Highest signal stability Fast response time Not susceptible to hydrogen interference Resistant to iron fouling No flow sensitivity Digital ISM technology Specifications Operating range System accuracy Response time at 25 C (77 F) (Air N2) Sampling rate Sample flow rate Temperature compensation Measuring temperature range Environmental temperature range Operating pressure Mechanical pressure resistance Sample connections Wetted materials Cable length Probe to M800 Components needed Sensor diameter Common Applications Power Plant Cycle Chemistry monitoring Generator stator cooling Semiconductor ultrapure water Pure water treatment system ppb ± 2% of reading or 2 ppb, whichever is greater 98 % of final value in < 20 s Adjustable between 1 and 60 seconds; Set to 10 seconds above ml / min Automatic C ( F) C ( F) bar ( psi absolute) Maximum 12 bar (174 psi absolute) 1/4" NPT Stainless steel, silicone, EPDM O-Ring 1-10 m (3-33 ft) Optical DO probe, housing and cable 12 mm / opticaldo 40 METTLER TOLEDO US and Canada

5 Microelectr. Power Ordering Information Order Number Pure Water ISM Optical DO Sensor Transmitter* M800 Water 2-channel M800 Water 4-channel * Power consumption is high; allowing only one ODO sensor on a 2-channel M800 or two ODO sensors on a 4-channel M800. The other channels can be used for other parameters such as ph or conductivity. 5-pin connector Sensor Head Accessories and Consumables Pure water stainless steel housing Optocap replacement kit Sensor Cables 2 m (6.6 ft) m (16.4 ft) m (32.8 ft) m (49.2 ft) Did You Know In conjunction with the M800, the Pure Water ISM Optical Sensor offers an easy-to-use solution for demanding, low-ppb measurements found in power plant cycle chemistry applications. Did You Know Optical sensors are not susceptible to hydrogen interference making them a perfect choice for stator cooling applications. Other Highlights No electrolyte necessary No polarization required Easy maintenance Inner body and opto-cap Suitable Housing Pure Water SS Housing Sensor Shaft Opto-cap Stainless steel housing METTLER TOLEDO US and Canada 41