Stamolys CA71AM. Technical Information

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Technical Information Stamolys CA71AM Ammonium analyzer Compact photometric analysis system for the ammonium measurement in sewage treatment plants, in drinking water and in industrial water treatments Application Monitoring and optimising the cleaning capacity of sewage treatment plants Monitoring activated sludge basins Monitoring sewage treatment plant outlets Monitoring of drinking water inlets Monitoring of industrial water treatments Your benefits Trace measurement from 1 μg/l possible Stainless steel or glass-fibre reinforced carbon housing available Two channel version available Measured value storage using integrated data logger Automatic calibration and self-cleaning Free selectable measuring, cleaning and calibration intervals TI353C/07/EN/14.12 71162870

Function and system design Measuring principle AM-A/ B/C After sample conditioning, the analyzer sample pump conveys a part of the filtrate to a mixing vessel. The reagent pump adds reagent at a specific ratio. As a result of the reaction, the sample turns a characteristic colour. The photometer determines the sample s absorption of an emitted light at a specific wavelength (s. Fig., Pos. 2). The wavelength is parameter specific. The absorbance is proportional to the concentration of the specified parameter in the sample (Pos. 3). Additionally, the absorption of a reference light is determined to receive a genuine measuring result. The reference signal is subtracted from the measuring signal to prevent any effects due to turbidity, contamination and ageing of the LEDs. The temperature in the photometer is controlled thermostatically so that the reaction is reproducible and takes place within a short period of time. 1 2 3 4 5 Reference LED Emitter LED Sample Reference detector Measuring detector Photometric principle a0001612 Measuring principle AM-D The LED sends light at a defined wavelength through the sample. The intensity of the received light is measured by the detector and converted to an electrical signal. In the analyzer, the respective concentration is calculated from the proportion of light absorbed by the sample. 1 2 1 2 3 LED Detector Sample 3 Photometric measuring principle a0001613 Ammonium and ammonia Ammonium occurs in a number of ways including biological decomposition of organic nitrogen compounds. The chemical balance in water shifts with an increasing ph value from ammonium to poisonous ammonia. Natural bodies of water do not normally contain any ammonia. The higher concentrations occurring in drinking water indicate the influence of waste water and landfill leachate. Ammonium is therefore an important parameter for water quality. Bacteria use oxygen to convert ammonium to nitrites which are then further oxidised to create nitrates (nitrification). The oxygen balance of a body of water is therefore negatively effected in a powerful way. 2 Endress+Hauser

Photometric ammonium determination Interferences Indophenole blue method acc. to ISO 11732 Sodium dichloric isocyanurate and sodium salicylate form a blue dye in conjunction with ammonium. The absorption is determined at a wavelength of 660 nm (AM-A/B/D) resp. of 565 nm (AM C). The absorption intensity is proportional to the ammonium concentration in the sample. The reference wavelength is 880 nm. No interferences up to the given concentration: Concentration [mg/l (ppm)] Interference 2,500 Ca 2+ (as CaCO 3 hardness equivalent 1) ) 1,500 Mg 2+ (as CaCO 3 hardness equivalent 1) ) 300 SO 2 4 250 NO 3 -N, PO 3 4 30 NO 2 -N 1) The total hardness must not exceed 125 mmol/l. The ph value should be between 5 and 9. Strong acid or strong alkaline samples may result in false measuring values. Sample conditioning Micro/ultrafiltration (Stamoclean CAT430, optional) A membrane filter element is suspended directly into the wastewater basin or channel. A membrane pump is located in a pump box on the basin rim.the pump creates a vacuum between the membrane and the carrier plate of the filter element. This vacuum makes the filtrate pass through the filter membrane. Suspended materials, particles, algae and bacteria are collected on the surface of the membrane. Due to alternating pumping and pause, intervals of more than one month are achieved between cleaning cycles. Parallel connection of two or four filter elements increases the sampling quantity up to approx. 1 l/h (0.26 gal/hr). The membrane pump pressure transports the sample to a collecting vessel near the analyzer over a distance of 20 m (66 ft). For distances up to 100 m (330 ft) the sample is transported to the collecting vessel by means of compressed air. The analyzers suck the needed sample volume from the collecting vessel. Membrane filtration (Stamoclean CAT411, optional) A sample flow of 0.8 to 1.8 m 3 /h (3.5 to 8 gal/min) is continuously conducted through the micro filter via a pressure pipe. A part of the sample passes the filter membrane and is then conveyed to the measuring device as filtrate. Sampling is based on the cross flow filtration principle. The PTFE filter membrane separates particles with sizes > 0.45 μm from the filtrate. These particles are collected in front of the membrane and are washed away with the sample flow. The medium is conducted in a meander-like channel through the filter element. This results in a constantly high flow rate. The high flow rate generates the self cleaning effect. Therefore, mechanical drives for the generation of a flow at the filter surface are not necessary. Backwash filter (Stamoclean CAT221, optional) A sample flow of 1 to 2.5 m 3 /h (4.4 to 11 gal/min) is permanently conveyed through the backwash filter by means of a sampling pump or compressed air or rinse water. The filtrate passes through the wedge wire sieve and is then transported to the measuring device. Clogging is minimized by the flow at the wedge wire sieve. Automatic backwashing results in a filter operating time of several weeks. The automatic backwashing and a small compressor or compressed air resp. rinse water supply guarantee lowmaintenance and low-energy operation. Customer specific solution Before analysis, the sample has to be conditioned, homogeneous and to be transported to an external or to the delivered collecting vessel. Endress+Hauser 3

Measuring system A complete measuring system comprises: An analyzer A sample conditioning system (optionally): Micro filtration / ultra filtration Stamoclean CAT430 or Stamoclean CAT411 Backwash filter Stamoclean CAT221 Customer specific solution Collecting vessel (see product structure) Micro / ultra filtration 1 2 3 4 5 6 7 8 9 Control box Membrane pump Timer T-piece Collecting vessel Overflow Analyzer Aeration basin Membrane filter Measuring system with Stamoclean CAT430 a0001616 1 2 3 4 5 6 7 8 9 Stamoclean CAT411 Inlet Sample pump or hydraulic main Filtrate line Collecting vessel Overflow Analyzer Analyzer sample line Outlet Measuring system with Stamoclean CAT411 a0001615 Backwash filter 1 2 1 2 3 4 5 6 7 Stamoclean CAT221 Compressor or compressed air Sample pump or hydraulic main Sample outlet Collecting vessel Overflow Analyzer 7 6 5 4 3 Measuring system with Stamoclean CAT221 a0001617 Standard applications Sewage treatment plant outlet monitoring Sampling from hydraulic main and analyzer in measuring station: Backwash filter Stamoclean CAT221 (order no. CAT221-Axxx) Compressor for CAT221 (order no. 51511143) Analyzer with collecting vessel, Stamolys CA71AM-A1xB2A1 Sampling from open channel Local filtration and analyzer in measuring station (up to 20 m distance): Ultra filtration Stamoclean CAT430, plate filter with hose heating for max. 20 m distance to the analyzer (order no. CAT 430-A1F0A3A) Filter element holder with horizontal slide (order no. 51511374) Analyzer with collecting vessel, Stamolys CA71AM-A1xB2A1 4 Endress+Hauser

Ammonium content monitoring in the biology Local filtration and analyzer in measuring station (up to 100 m distance): Ultra filtration Stamoclean CAT430, plate filter with hose heating over 18 m, remaining distance freeze free installed, sample transportation up to 100 m (order no. CAT 430-A4F0A3A) Filter element holder with vertical slide (order no. 51511354) Analyzer with collecting vessel, Stamolys CA71AM-B1xB2A1 Ammonium content monitoring in the biology Local filtration and analyzer in measuring station (up to 20 m distance): Ultra filtration Stamoclean CAT430, plate filter with hose heating over max. 20 m distance to the analyzer (order no. CAT430-A1F0A3A) Filter element holder with vertical slide (order no. 51511354) Analyzer with collecting vessel, Stamolys CA71AM-B1xB2A1 Monitoring of the drinking water quality before the net inlet or of well water to avoid an expensive water treatment Sampling from hydraulic main resp. from well and analyser in the measuring station: No filtration needed Analyzer with collecting vessel Stamolys CA71AM-D1xB2A1 Input Measured variable Measuring range Wavelength Reference wavelength NH 4 -N [mg/l or μg/l] AM-A 0.02 to 5 mg/l (0.02 to 5 ppm) AM-B 0.2 to 15 mg/l (0.2 to 15 ppm) AM-C 0.2 to 100 mg/l (0.2 to 100 ppm) AM-D 1 to 500 μg/l (1 to 500 ppb) AM-A/B/D 660 nm AM-C 565 nm AM-A/B 880 nm AM-C 810 nm Endress+Hauser 5

Output Output signal 0/4 to 20 ma Modbus RS485 (optional) Signal coding Data transmission rate Galvanic isolation Connectors EIA/TIA-485 9600 Baud Yes Top-hat rail clamp Bus termination - Signal on alarm Load Load capacity Data interface Data logger Protocol specific data Contacts: 2 limit contacts (per channel), 1 system alarm contact optional: end of measurement (with two channel version display of channel no. available) max. 500 Ω max. 300 Ω (with optional Modbus module) 230 V / 115 V AC max. 2 A, 30 V DC max. 1 A RS232-C Modbus RS485 (optional) 1024 data pairs per channel with date, time and measured value 100 data pairs with date, time and measured value for calibration factor determination (diagnostic tool) Modbus RS485 Protocol Function codes RTU 03 (Read holding registers) Broadcast support for function codes - Output data Data format 1 main measured value at address 40008 (2 bytes) 16 bits Input data - Supported features Slave address, data format, check sum and baudrate can be configured using Advantech ADAM Utility Software at re-boot with set init switch 6 Endress+Hauser

Power supply Supply voltage Power consumption Current consumption Fuses Electrical connection 115 V AC / 230 V AC ±10%, 50/60 Hz approx. 150 VA approx. 0.2 A at 230 V approx. 0.5 A at 115 V 1 x slow-blow 0.5 A for electronics 2 x semi-delay 0.2 A for photometer 1 x slow-blow 0.1 A for motors 1 x slow-blow 1 A for fan! CAUTION Shown diagram ( å 1) is an example The terminal assignment and cable colors can deviate from the actual assignment and colors! Only use the terminal assignment of the sticker in the device ( å 2) to connect your analyzer! Fig. 1: Example of the connection sticker a0017139 Fig. 2: Analyzer from top (open version resp. folded out) 1 Connection department sticker 2 Printed circuit board with terminal strip 3 Backside of the analyzer 3 Connection department sticker for Modbus RS485 (optional) a0017149 Endress+Hauser 7

Performance characteristics Time between two measurements Maximum measured error Repeatability Measuring interval Reaction time Sample requirement Reagent requirement Calibration interval Rinse interval t mes = reaction time + rinse time + waiting time + rinse again time + filling time + sampling time + reagent refusal time (min. waiting time = 0 min) ±2 % of measuring range end AM-A: up to 2 mg/l: ± 0.03 mg/l (± 0.03 ppm) > 2 mg/l: ± 0.1 mg/l (± 0.1 ppm) AM-B: up to 5 mg/l: ± 0.05 mg/l (± 0.05 ppm) > 5 mg/l: ± 0.1 mg/l (± 0.1 ppm) AM-C: up to 40 mg/l: ± 0.5 mg/l (± 0.5 ppm) > 40 mg/l: ± 2 mg/l (± 2 ppm) AM-D: ± 2 μg/l (± 2 ppb) t meas to 120 min AM-A/B: 180 s AM-C: 110 s AM-D: 600 s 20 ml (0.68 fl.oz.) per measurement AM-A/B/C: 2 x 0.5 ml (0.017 fl.oz.) 2.59 l (0.68 US.gal) per reagent per month with 10 minute measuring interval AM-D: 2 x 0.4 ml (0.014 fl.oz.) 0.88 l (0.23 US.gal) per reagent per month with 20 minute measuring interval 0 to 720 h at ambient temperatures < 30 C (86 F) max. 6 h at ambient temperatures > 30 C (86 F) 0 to 720 h Rinse time selectable from 20 to 300 s (standard = 60 s) Rinse again time Filling time Empty optical cell 30 s AM-A/B: 15 s AM-C: 18 s AM-D: 40 s AM-A/B/C t refusal = 0 s AM-D t refusal = 30 s 8 Endress+Hauser

Maintenance interval Servicing requirement 6 months (typical) 15 minutes per week (typical) Environment Ambient temperature Humidity 5 to 40 C (40 to 100 F), avoid strong fluctuations below the condensation limit, installation in usual, clean rooms outdoor installation only possible with protective devices (customer supplied) Degree of protection IP 43 Process Sample temperature Sample flow rate Consistence of the sample Sample inlet 5 to 40 C (40 to 100 F) min. 5 ml (0.17 fl.oz.) per min low solid content (< 50 ppm) Unpressurized ph value of the sample ph 5 to 9 Endress+Hauser 9

Mechanical construction Design, dimensions Analyzer, stainless steel, AM-A/B/C/D Stainless steel version a0001361 10 Endress+Hauser

Analyzer, GFR version, AM-A/B/C 163 (6.42) 250 (9.84) Ø 26(1.02) Ø 16(0.63) 120 (4.72) 330 (13.0) 60 (2.36) 160 (6.30) 140 (5.51) 100(3.94) 7-11/ 0.28-0.43 (M 6) 200 (7.87) 120 (4.72) 243 (9.57) 555 (21.8) 165 (6.50) 125 (4.92) 119/4.69 Ø 21(0.83) 78(3.07) 47(1.85) Ø 26(1.02) Ø21 (0.83) 648 (25.5) 326 (12.8) Ø 26 (1.02) Ø 16 (0.63) 360 (14.2) 436 (17.2) 465 (18.3) 500 (19.7) 120(4.72) Ø 27 (1.06) mm(inch) GFR version a0001354-en Analyzer, GFR version, AM-D 38 (1.5) 250 (9.84) 110 (4.33) 330 (13.0) Ø27(1.06) 60 (2.36) 160 (6.30) 140 (5.51) 100(3.94) 7-11/ 0.28-0.43 (M 6) 200 (7.87) 120 (4.72) 243 (9.57) 555 (21.8) 165 (6.50) 125(4.92) 119(4.69) Ø 21(0.83) 78(3.07) 47(1.85) Ø 26/1.02 Ø21 (0.83) 648 (25.5) 326 (12.8) Ø 26(1.02) Ø 16 (0.63) 360 (14.2) 436 (17.2) 465 (18.3) 500 (19.7) 120(4.72) Ø 27 (1.06) mm (inch) GFR version a0001355 Endress+Hauser 11

RS 232 Stamolys CA71AM Analyzer, open version, AM-A/B/C/D 381 (15.0) 351 (13.8) 19 (0.75) 197 (7.76) 540 (21.3) 562 (22.1) 175 (6.89) Ø6 (0.24) 192 (7.56) 9 (0.35) 325 (12.8) 8 (0.31) mm (inch) Open version (without housing) a0001356 With the open version, you need an additional platform for the reagents. Mount this platform max. 35 cm (13.8 inch) below the pumps. The reagent bottels have the following dimensions: 90 x 90 x 215 mm (3.54 x 5.54 x 8.46 inch). The number of bottles varies from 2 to 5 depending on the analyzer version. For these versions, the outlet pipe must be installed right of the analyzer. The outlet pipe must be mounted to a wall so that the sample outlet hoses from the photometer have a gradient of 5 to 10 %. If neccessary, extend the hoses. 12 Endress+Hauser

Collecting vessel 145 (5.71) 27 (1.06) 60 (2.36) 4 x Ø 6.6 (0.26) 130 (5.12) 70(2.76) 42(1.65) 17 (0.67) 48(1.89) 79 (3.11) 120 (4.72) 140 (5.51) 10 (0.39) 115 (4.53) 3 x Ø 28/20 (1.1/0.79) Ø 34/25 (1.34/0.98) 4 x Ø 5.5/10.4 (0.22/0.41) Ø56(2.2) Ø 50H7 (1.97H0.28) * 60(2.36) M20x1.5 Ø 24 (0.94) mm (inch) * 80(3.15) 100 (3.9) 70 (2.76) * Collecting vessel at analyzer (optional) 1 Ventilation 2 Sample inlet from sampling 3 Collecting vessel 4 Electrical connections 5 Analyzer sample inlet a0001363 Collecting vessel dimensions * variable, freely adjustable dimensions 6 Sampling for analyzer 7 Sample overflow 8 Analyzer outlet a0001346 Weight GFR housing Stainless steel housing Without housing approx. 28 kg (62 lbs) approx. 33 kg (73 lbs) approx. 25 kg (55 lbs) Materials Housing: Front windows: Endless hose: Pump hose: Valves: Stainless steel 1.4301 (AISI 304) or Glass-fibre reinforced carbon(gfr) Polycarbonate C-FLEX, NORPRENE TYGON, Viton TYGON, silicone Sample line connection One channel version Collecting vessel (at analyzer, with or without level measurement) Connection hose ID 3.2 mm (1/8 inch) Customer collecting vessel Connection Max. distance from collecting vessel to analyzer Max. height difference from collecting vessel to analyzer hose ID 1.6 mm (1/16 inch) 1 m (3.3 ft) 0.5 m (1.6 ft) Two channel version Depending on the ordered version, one or two collecting vessels (with or without level measurement) are included in the scope of delivery. Level measurement is only possible for one channel. Only one collecting vessel can be mounted at the housing. The second is to be placed nearby the analyzer. Endress+Hauser 13

Sample outlet AM-A/B/C Connection Min. volume per measurement Hose ID 4 mm (0.16 inch) Max. length of closed loop: 1 m (3.3 ft) Open outlet downgrade installed No combination of several devices to a closed-loop system 20 ml (0.68 fl.oz.) Sample outlet AM-D Connection Min. volume per measurement Hose ID 16 mm (0.63 inch) Max. length of closed loop: 1 m (3.3 ft) Open outlet downgrade installed No combination of several devices to a closed-loop system 20 ml (0.68 fl.oz.) Local operation Operability Display and operating elements 1 LED (measured value) 2 LC display (measured value and status) 3 Serial interface RS 232 4 Operating keys and control LEDs a0001679 Modbus installation Installation of Modbus RS485 a0017161 14 Endress+Hauser

Ordering information Product page You can create a complete and valid order code by using the configurator on the internet product page. Enter the following address to access the product page: www.products.endress.com/ca71am Product configurator 1. You can choose from the following options on the product page located on the right: 2. Click "Configure this product". 3. The configurator opens in a separate window. You can now configure your device and receive the complete order code that applies for the device. 4. Afterwards, export the order code as a PDF or Excel file. To do so, click the appropriate button at the top of the page. Product structure The following product structure is effective on the date of print only. You can create an up-to-date and complete order code with the help of the configurator on the internet product page. Measuring range A 0.02... 5 mg/l NH 4 -N B 0.2... 15 mg/l NH 4 -N C 0.2... 100 mg/l NH 4 -N D 1... 500 μg/l NH 4 -N Y Special version acc. to customer s specification Sample transfer 1 From one measuring point (one-channel version) 2 From two measuring points (two-channel version) Power supply 0 230 V AC / 50 Hz 1 115 V AC / 60 Hz 2 115 V AC / 50 Hz 3 230 V AC / 60 Hz Collecting vessel for up to 3 analyzers A Without collecting vessel B With collecting vessel without level measurement C With collecting vessel with level measurement (one-channel version only) D With two collecting vessels without level measurement (two-channel version) Housing version 1 Without 2 GFK housing 3 Stainless steel with purge 8 Stainless steel without purge Output A 0/4... 20 ma C Modbus RS485 Chemicals 1 To be ordered separately 2 One set of inactive reagents 3 Three sets of inactive reagents CA71AM- complete order code Endress+Hauser 15

Scope of delivery Order reagents separately with analyzer version CA71XX-XXXXXX1. With all other versions, inactive reagents are included in the scope of delivery. You have to mix the reagents before using them. Please, read the instructions attached to the reagents. AM-A/B/C The scope of delivery comprises: An analyzer with mains plug A cleaning injector A tube of silicone grease A NORPRENE hose, length 2.5 m (8.2 ft), ID 1.6 mm (0.06 inch) A C-FLEX hose, length 2.5 m (8.2 ft), ID 6.4 mm (0.25 inch) A C-FLEX hose, length 2.5 m (8.2 ft), ID 3.2 mm (0.13 inch) Two hose fittings of each size: 1.6 mm x 1.6 mm (0.06 inch x 0.06 inch) 1.6 mm x 3.2 mm (0.06 inch x 0.13 inch) 6.4 mm x 3.2 mm (0.25 inch x 0.13 inch) Two T-hose fittings of each size: 1.6 mm x 1.6 mm x 1.6 mm (0.06 inch x 0.06 inch x 0.06 inch) 3.2 mm x 3.2 mm x 3.2 mm (0.13 inch x 0.13 inch x 0.13 inch) 6.4 mm x 6.4 mm x 6.4 mm (0.25 inch x 0.25 inch x 0.25 inch) An interference suppressor for the current output Four edge covers (version with GFR housing only) A roll of PTFE strip A quality certificate Operating Instructions (English). AM-D The scope of delivery comprises: An analyzer with mains plug A cleaning injector A tube of silicone grease A NORPRENE hose, length 2.5 m (8.2 ft), ID 1.6 mm (0.06 inch) A Grifflex hose, length 2.0 m (6.6 ft), ID 19 mm (0.75 inch) A C-FLEX hose, length 2.5 m (8.2 ft), ID 3.2 mm (0.13 inch) A C-FLEX hose, length 2.5 m (8.2 ft), ID 6.4 mm (0.25 inch) Two hose fittings of each size: 1.6 mm x 1.6 mm (0.06 inch x 0.06 inch) 1.6 mm x 3.2 mm (0.06 inch x 0.13 inch) 6.4 mm x 6.4 mm (0.25 inch x 0.25 inch, version without housing only) Two T-hose fittings of each size: 1.6 mm x 1.6 mm x 1.6 mm (0.06 inch x 0.06 inch x 0.06 inch) 3.2 mm x 3.2 mm x 3.2 mm (0.13 inch x 0.13 inch x 0.13 inch) An interference suppressor for the current output A nozzle for outlet pipe, ID 16 mm (0.63 inch) A hose clamp Two pipe clamps (version without housing only) A screwed socket for the outlet pipe Four edge covers A roll of PTFE strip A quality certificate Operating Instructions (English). 16 Endress+Hauser

Certificates and approvals 4 approval Declaration of conformity The product meets the requirements of the harmonized European standards. It thus complies with the legal requirements of the EC directives. The manufacturer confirms successful testing of the product by affixing the 4 symbol. Test reports Quality certificate Depending on the order code, you receive a quality certificate. With the certificate the manufacturer confirms compliance with all technical regulations and the successful individual testing of your product. Accessories Reagents and standard solutions Cleaner for hoses Collecting vessel Reagent set active, 1 l reagent AM1+AM2 each; order no. CAY140-V10AAE Reagent set inactive, for l reagent AM1+AM2 each; order no. CAY140-V10AAH Cleaning agent, 1l; order no. CAY141-V10AAE Standard solution 100 μg/l NH 4 -N; order no.cay142-v10c01aae Standard solution 500 μg/l NH 4 -N; order no.cay142-v10c02aae Standard solution 5 mg/l NH 4 -N; order no.cay142-v10c05aae Standard solution 10 mg/l NH 4 -N; order no.cay142-v10c10aae Standard solution 15 mg/l NH 4 -N; order no.cay142-v10c15aae Standard solution 20 mg/l NH 4 -N; order no.cay142-v10c20aae Standard solution 30 mg/l NH 4 -N; order no.cay142-v10c30aae Standard solution 50 mg/l NH 4 -N; order no.cay142-v10c50aae Standard solution 100 mg/l NH 4 -N; order no.cay142-v10c88aae Cleaning agent, alkaline, 250 ml (8.5 fl.oz.); order no. CAY746-V02AAE Cleaning agent, acidic, 250 ml (8.5 fl.oz.); order no. CAY747-V02AAE for sampling from pressurized systems results in an unpressurised continuous sample stream Collecting vessel without level measurement; order no. 51512088 Collecting vessel with level monitoring (conductive); Order no. 51512089 Level monitoring retrofit kit; Order no. 71023419 Maintenance kit CAV740, maintenance kit for CA71 Pump hoses Valve hoses Hose connectors Ordering acc. to product structure For CA71 parameter 2 AM-A/B/C 5 HA, AL, AM-D, FE-D, NO-D Inlet and outlet hoses A not selected B selected, for CA71AM-A/B/C C selected, for CA71AM-D CAV740- complete order code Endress+Hauser 17

Additional accessories Interference suppressor for control, power and signal lines order no. 51512800 Silicon grease, tube, 35 g order no. 71017654 Valve set, 2 pieces, for two-channel version order no. 51512234 Upgrade kit for upgrading from one-channel to two-channel version order no. 51512640 18 Endress+Hauser

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TI353C/07/EN/14.12 71162870 FM9