50Series. Plug & Play multi-parametric process controller

Transcription

1 50Series Plug & Play multi-parametric process controller Paab Tekno Trading AB - Tingvallastrand 12, Säffle, Sweden Tel: Fax info@paab.com -

2 50Series Plug & Play multiparametric process controller Complete and flexible system for a wide range of applications in water treatment. Easy configuration Software with self recognition of the different sensors. Configuration up to 2 parameters freely selectable Digital sensors RS 485 interface and MODBUS RTU protocol to measure: 4pH 4Differential ph 4O.R.P. 4Differential O.R.P. 4Dissolved Oxygen 4Turbidity 4Suspended Solids Equalization Oxidation Secondary Clarifier

3 Main features The controller is equipped with 1 RS485 gate for sensors connection and 1 RS485 gate (optoisolated) for local networks used for connections with local communication devices (configuration computer, terminals, remote controls etc). The card uses an EEPROM to store the Set-up data and flash memories for storage of the archives of historical data and LOG files of events. An internal Real Time Clock (clock with date) allows the software to storage figures in a chronological order. Communication protocol MODBUS RTU standard PROFIBUS DP slave (on request) 4Real-time data communication 4Download of the stored data on a PC via SW or directly on an USB support 4Programming key pad with 5 keys 4"CAL" Function Key to direct access to the calibration menu 4"GRAPH" Function Key to direct access to the graphs of measure 4 USB Function Key for data download on USB support 4 MODE Function Key for selfrecognition of probes 4LCD Graphic display 128x128 with background illumination 4Internal Data Logger (flash 4 Mbit) with possibility of graphic and table visualisation of measurement trends 4PID adjustment 42 Serial output RS Programmable Analogical Output (when two similar sensor are connected the 3rd output can be set as average value) 44 Relay Output for Set Point thresholds (2 for each measurement) 41 Relay Output for Alarm 41 Relay Output for Sensor Washing or Temperature Set Point 41 Digital Input for disabling of dosage

4 Technical Features Software features and functions Data storage PID Regulation Internal Flash 4Mbit Memory (near to records). Records interval: 01:00 99:99 min Type: Circular (F.I.F.O.) or Filling Possibility of visualization of the stored data in tabular and graphic form, with indication of max, min and average values of the selected period. Zoom function Functions: P PI PID. Activated on the analogue or the digital output. Proportional range: 0 500% Time of integral: 0:00 5:00 min Time of derivative: 0:00 5:00 min 3 Analogue Outputs Output 1 programmable for the first measurement or PID regulation Output 2 programmable for the second measurement or PID regulation Output 3 programmable for the first or the second measurement or temperature or average value (in case of the same measurement) Output limits freely programmable within measuring ranges. 4 Active Digital Outputs 2 For each measurement Alarm digital output Set Point ON OFF : working range setting (Hysteresys / direction) and pause/working time setting: Seconds PID Regulation: Pulse Frequency or PWM Reporting: Instrumental anomalies, minimum, maximum, set point s delay, permanence time (live check) Delay time: 00:00 59:99mm:ss at minimum steps of 15 sec. Permanence time: 00:00 99:99 hh:mm Set Point disableing (in case of alarm): Enable / Disable Digital output for electrode washing or temperature set point Digital input RS485 Serial output Manual controls Programming of the duration and interval Frequency: 00:00 24:00 hh:mm minimum time leg: 15 min During the washing phase, all digital and analogue outputs are freezed To disable dosages or activate washing cycle For set-up and real-time data acquisition from remote or for stored data download (using a dedicate-sw). MODBUS RTU communication protocol Possibility to simulate all the analogue and digital outputs using the keyboard Purchase code: 50xx Plug & Play multi-parametric process controller. Wall mounting IP Vac supply Vac/cc internal board

5 Hardware Features Visualization Programming Data Logger Analogue Outputs Digital Outputs Digital Input Serial Output Operating conditions Power Supply/ Electrical protections LCD graphic display STN 128x128 back lighted. Visible area: 70x70 5 bubble-keys keyboard Flash 4Mbit Memory (near to records). 0.0 / ma - Maximum load 500 Ohm Galvanic separation: 1KV Optoisolator Second Alarm output: NAMUR 2.4 ma (with 4/20mA Range) Switching Relays. Max resistive load 3A a 230 Vac.Usable as NO contact. Active and already supplied. Possibility to link with a 3 wires inductive sensor. RS485 with Baud Rate programmable speed MOD BUS RTU Protocol 0 50 C - Humidity 10-95% (non-condensing) Storage and transport C Power supply Vac/dc 50-60Hz (Optional 24Vac/dc) Transformer isolation 4KV Absorbing average < 6W Electrical Protection: EMI / RFI CEI-EN /99 According to UL, not connect to relay outputs a voltage exceeding 115V Mechanical dimension 50XX Wall-mounting IP66 Dimensionsi (L x H x P) Mounting thickness 144 x 144 x 122,5 mm 122,5 mm Material ABS Gray RAL 7045 Mounting Wall Mechanical Protection IP 66 Weight Front Panel 1 Kg UV-resistant polycarbonate 5

6 ELECTRODES FOR PH AND ORP MEASUREMENT The electrodes listed below are all of the combined type (Measurement+Reference), without maintenance, and are classified by their construction features, which makes them adaptable to multiple applications. 120 mm 120 mm 120 mm 120 mm Models and S401VG Combined ph electrode for general use S406VG Combined ORP electrode for general use Ø 12 Ø 12 Ø 12 Ø mm S408MEC Combined ph electrode for high temperature liquids and/or installations under pressure S401VG S406VG S408MEC S406OXT S408 POL Plus S406POL S401LC S408POL Plus Combined ph electrode for harsh chemical applications Ø 12 S402PS S403PS S406POL Combined ORP electrode for harsh chemical applications S406OXT Combined ORP electrode for high temperature liquids and/or installations under pressure 171 mm AD Series Digitizer for ph and ORP electrodes Ø 36 S401LC Combined ph electrode for waters with low electrical conductivity S402PS ph electrode for applications involving liquids with a high suspended solids content S403PS ORP electrode for applications involving liquids with a high suspended solids content The AD Series Chemitec digitizers convert the signals of the common ph and ORP electrodes into serial signal with standard Modbus RTU protocol, allowing the connection to the 50Series plug & play multiparametric instrument

7 Electrodes for ph measurement Models S401VG S408MEC S408POL HT S401LC S402PS Min. liquid conductivity Electrolyte 0 14 ph 0 14 ph 0 14 ph 2 14 ph 0 14 ph 0 60 C C C 0 60 C 0 80 C 6 bar 16 bar 6 bar 16 bar 0.2 bar 50 μs/cm 50 μs/cm 2 μs/cm 2 μs/cm 5 μs/cm Glass Glass Glass Epoxy Glass GEL GEL Polisolve GEL KCl - KNO3 Junction single open hole 3 ceramic diaphragm double open hole single open hole single annular ceramic connection Connection to process S7 screw S7 screw S7 screw S7 screw fixed Pg 13.5 Pg 13.5 Pg 13.5 Pg 13.5 standard Ø 12 5 mt 5 mt 5 mt 5 mt integral 5 mt Electrodes for ORP measurement Models S406VG S406POL S406OXT S403PS ±1000 mv ±2000 mv ±2000 mv ±1000 mv 0 60 C C C 0 80 C 6 bar 6 bar 16 bar 0.2 bar Min. liquid conductivity 50 μs/cm 2 μs/cm 50 μs/cm 5 μs/cm Glass Glass Glass Glass Electrolyte GEL Polysolve GEL KCl - KNO3 Junction single open hole single open hole 3 ceramic diaphragm single annular ceramic connection S7 screw S7 screw S7 screw fixed Connection to process Pg 13.5 Pg 13.5 Pg 13.5 standard Ø 12 5 mt 5 mt 5 mt integral 5 mt

8 DIGITAL PH AND ORP ELECTRODES The ph electrode S401DIG and the ORP electrode S406DIG are suitable for the measurement of ph and ORP in various applications. Ø 44 Chemitec DIGITAL SENSORS The porous liquid junction resists fouling and chemical attack. The double junction of the reference electrode increases the operating life in applications containing sulphides (H2S) and metals such as lead, mercury and silver. The new type of solid reference electrolyte allows a reference potential constant in time and at pressure and temperature variations. 227 mm The new capillary temperature sensor design places the Pt100 behind the (ph or ORP) sensitive membrane for accurate temperature compensation and measurement. The mechanical protection IP68 protects the high impedance signal of the electrodes from moisture that can be generated in immersion applications (condensation). Ø 36 Drinking water, process water, wastewater, samples containing sulphides and metals such as mercury, lead and silver. Models Measuring method Sensitivity Repeatability Response time Measuring electrode Other materials Mechanical protection Power supply Power consumption Signal interface S401DIG S406DIG 0 14 ph -1500mV mv Potentiostatic 0.05 ph mv 98 % 10 sec. to reach 95% of the value 0 80 C in insertion/by-pass 0 50 C in immersion 6.9 bar Ryton and PVC hemispherical glass membrane Teflon, carbon, epoxy IP68 Sensor + cable 12 24Vdc max. 2W 10m integral with the sensor (other on request) Modbus RTU Standard Protocol

9 DIGITAL DIFFERENTIAL PH AND ORP ELECTRODES Ø 44 S401DIFF and S406DIFF are differential electrodes designed for ph and ORP measurement in heavy duty applications, where the electrodes with traditional reference system would have a life too short mm Chemitec DIGITAL SENSORS They consist of a PVC body which houses the glass electrode for ph or ORP measurement, the reference electrode with a salt bridge and a KCL reserve which guarantees a high stability of the reference signal in time and at operating conditions variations. The measuring and reference electrodes are connected to an earth contact for an excellent measurement accuracy even in extreme conditions. The reference electrode is replaceable. Input, output and biological treatment of waste water. Industrial heavy duty applications. ¾ GAS Models Measuring method Sensitivity Repeatability Response time Measuring electrode Other materials Mechanical protection Power supply Power consumption Equipotential contact Signal interface S401DIFF S406DIFF 0 14 ph -1500mV mv potentiostatic differential 0.05 ph mv 98 % 5 sec. to reach 90% of the value C in insertion/by-pass ; C in immersion 6.9 Bar Ryton and PVC hemispherical glass membrane Teflon, carbon, epoxy IP68 Sensor + cable 12 24Vdc max. 2W 10m integral with the sensor (other on request) included Modbus RTU Standard Protocol

10 CONDUCTIVITY MEASURING CELLS S411 S411C S411TEF S411TEF C Wide range of conductive cells designed both for water treatment and for industrial applications. Thanks to the combination between the cell costant (k) and the construction materials it is possible to cover a wide spectrum of applications with different measurement ranges. Untreated water, drinking water, ultra pure water, demineralization, reverse osmosis, ion exchanger, water from conditioning systems and boilers, process water. Models S411 S411C S411TEF S411TEF C Constant K μs μs μs μs Temp. compensation - yes - yes C C C C 5 bar 5 bar 2 bar 4 bar PP PP PTFE PTFE Electrode material Graphite Graphite AISI 316 AISI 316 Connector Integral cable Connection to process 1/2 GAS 1/2 GAS 1 GAS 1 GAS Standard cable 5 mt 5 mt 5 mt 5 mt S411U S411P AD Series Digitizer to convert the conductivity measurement into serial signal with standard MODBUS RTU protocol S4114E Models Constant K Temp. compensation Electrode material Connector Connection to process S411U 1 10 S411P S4114E μs ms μs μs ms yes yes yes yes yes C 6 bar C 6 bar C 16 bar C 16 bar 0 70 C 4 bar PES Graphite PES Graphite AISI 316 AISI 316 AISI 316 AISI 316 Epoxy Graphite & Inox (temp) with connector Integral cable ½ GAS (*) ½ GAS (*) ½ NPT (*) ½ NPT (*) Pg mt Industrial at middle range Industrial at high range Industrial at low range Industrial at very low range Industrial with 4 Electrodes for wide range (*) ON REQUEST CLAMP CONNECTIONS, FOOD GRADE FLANGES, DIN

11 INDUCTIVE CONDUCTIVITY MEASURING CELLS The conductivity measuring system using inductive sensors has many advantages over other conventional methods. The absence of electrodes in contact with the fluid to be measured makes the system recalibration and maintenance virtually useless over long periods of time. The S411IND sensors have a great tolerance with respect to the coating phenomena, probably the most common problem encountered when measuring with conventional electrodes. S411IND The inductive sensor has been engineered to produce a low cost sensor, without sacrificing performance or quality. The result has been obtained by moulding the sensor using polypropylene reinforced with fibreglass. The sensor provides all of the benefits that the method of inductive conductivity measurement provides. Polluted surface waters, process monitoring, means very contaminated or aggressive, influential water of treatment plants and wastewater. Models S411IND sensor only S411IND S411IND E S411IND T INS S411IND T for immersion S411IND E for insertion with T-fitting S411IND INS for direct insertion on flat wall S411IND T Serie AD S411IND Digitizer for inductive measuring cells The AD Series Chemitec digitizers convert the conductivity measurement into serial signal with standard Modbus RTU protocol Sensore Temp. compensation Operating pressure Mechanical construction Material Contact materials Immersion length Mounting Connection Protection grade - 5 to 60 C (not freezing) 1000 us 1000 ms Temperature sensor Pt1000 with 2 wires Standard 5 meters Vacuum to 6.5 bar (100 psi) PVC with Viton seals Glass-reinforced polypropylene 600 or 1200 mm Standard bracket or optional flange 0.5" BSP male IP68

12 INDUCTIVE CONDUCTIVITY MEASURING CELLS S411IND HT S411IND HT These sensors are manufactured of PEEK, a food grade material with excellent aggressive chemical resistance and high temperature performance. The construction allows the sensors to operate at 100 C continuously, withstanding thermal shocks commonly associated with CIP applications. The sensors can be sterilized at up to 135 C. S411IND HT TP S411IND HT TS Ideal for food and process applications Conductivity and concentration measurements Wide range of process connections Models S411IND HT for insertion S411IND HT60/120 S411IND HT60/120 for immersion S411IND HT TP for By-pass with PVC T-fitting S411IND HT TP for By-pass with SS T-fitting Digitizer for inductive measuring cells S411IND HT The AD Series Chemitec digitizers convert the conductivity measurement into serial signal with standard Modbus RTU protocol. Sensore Temp. compensation Operating pressure Mechanical construction Materials Contact materials Immersion length Mounting Connections Protection grade - 5 to 100 C up to 135 C for short periods (CIP process) 1000 us 1000 ms Temperature sensor Pt1000 with 2 wires Disconnectable Standard 5 meters Vacuum to 10 bar (150 psi) PEEK / AISI Body PEEK Temperature sensor INOX (PEEK on request) 600 or 1200 mm Standard bracket or optional flange RJT 2", 2.5", 3" Tri clamp 2", 3" IDF/ISS 2", 2.5", 3" DIN 1185: 50mm, 80mm (oher on request) IP67

13 DIGITAL CONDUCITIVITY PROBE Ø 33 The S411DIG probe is used for measuring conductive conductivity in pure and process waters. 220 mm Chemitec DIGITAL SENSORS Reliable conductivity measurement using graphite electrodes Conductive measuring method with two electrodes and temperature compensation PVC sensor body and graphite electrodes No mechanically moving parts Immediate installation and easy manteinance MODBUS RTU serial communication protocol Untreated water, drinking water, demineralization, reverse osmosis, ion exchanger, water from conditioning systems and boilers, artesian wells 1 GAS Measuring method Sensitivity Precision Response time Refresh time Temp. compensation Electrode Mechanical protection Power supply Power consumption Equipotential contact Signal interface uS conductive with two electrodes 0.1 us +/-1uS 90% of the value in less than 60 seconds 1 second facing Stainless Steel sleeve C 10 bar PVC Graphite The probe is completely resinate inside IP68 Sensor + cable 12 24Vdc max. 2W 10m integral (other on request) 10m disconnectable cable for solution included RS 485 Modbus RTU Protocol

14 AMPEROMETRIC SENSORS FOR CHLORINE MEASUREMENT 175 mm Ø 25 mm The S494 are amperometric probes with two (2) or three (3) electrodes covered with membrane with integrated temperature sensor for signal compensation. Swimming pool, drinking water, waste water, process water. Digitizer for amperometric sensors The AD Series Chemitec digitizer converts the S494 sensor signals into serial signal with standard Modbus RTU protocol allowing the connection to the 50Series plug & play digital instrument. Measuring parameters Measuring error Repeatability Stability Operating conditions Temp. compensation Time Response Membrane Measuring electrode Reference electrode Calibration point Warnings Free Chlorine ; Total Chlorine ; Organic and Inorganic Free Chlorine ; Chlorine Dioxide ; Ozone ; Peracetic Acid ; Hydrogen Peroxide ; Chlorites ±2 % of the indicated value ±2 % ±1 % of the analytical determination after 4 weeks from the calibration Sample speed on the membrane 15 cm/sec Costant flow rate of the hydraulic supply l/h Acceptable overpressure 1 bar > 5 up to 45 C (other on request) automatic through NTC integrated sensor First polarization from 1 to 3 h ; Repolarization 30 min 60 sec for 90% f.s. PVC, silicon, PTFE PTFE (Teflon) semipermeable (Cathode) Gold (Anode) Silver/Silver Chloride Zero not necessary Work according to user requirement, through analytical determination (colorimetric with DPD) Maintenance interval 2 weeks or more Life time of the electrolyte solution approx. 1 year

15 Measuring parameters ph operating range Free Chlorine Total Chlorine Organic and Inorganic Free Chlorine Chlorine Dioxide Ozone Peracetic Acid Hydrogen Peroxide Chlorites ppm; ppm; ppm; ppm ppm; ppm; ppm; ppm ppm; ppm; ppm ppm; ppm; ppm; ppm ppm; ppm; ppm ppm; ppm; ppm; ppm; ppm; ppm; ppm; ppm; ppm ppm 6 8 ph 4 12 ph 4 11 ph 1 11 ph 2 11 ph 1 7 ph 2 11 ph 6 9 ph Mounting in constant flow-through electrode holder for Chlorine, Chlorine Dioxide, Ozone, Chlorites, PAA, H2O2 and other membrane sensors. S305PX494 Materials Cell and mounting brackets Connections and valves Floating system O-Ring Plexiglass PVC Stainless Steel NBR Operating conditions Operating pressure max 60 C (80 C on request) maximum 4 bar

16 OPTICAL OXYGEN AND TEMPERATURE PROBE mm mm ¾ BSP S423/C/OPT is an oxygen measuring sensor with integrated temperature probe. The measuring technique is based on the following optical principle: a diode emits a blue light towards a support on which a fluorescent substrate is applied. The substrate reacts by emitting initially a red light (luminescence), then returns to its initial state. The intensity of the produced red light and the return rate to the initial state are related to the present oxygen concentration. This innovative method allows reliable, accurate measurements with no drift over time, so that the system calibration is no longer necessary. No maintenance is required except for the replacement of the luminescent support about every two years. The system does not consume oxygen, therefore it is suitable for the most varied fields of application, including those in which the measuring liquid is almost stationary. Chemitec DIGITAL SENSORS Surface waters, fish farms, drinking water, waste water, sea water Ø 33.4 Available versions with PVC body, with 4 20mA outputs Measuring method Precision Response Refresh time Temp. compensation Electrode material O-Rings Mechanical protection Power supply Power consumption Signal interface 0.00 to mg/l 0-200% Optical measure by luminescence ±0.1mg/L or ±1 % 90% of the value in less than 60 second < 1 second with internal NTC probe C (optional C ) 5 bar AISI 316 (PVC body optional) Special optical glasses NBR and Silicon IP68 Sensor + cable 12 24Vdc max. 2W 10m integral with the sensor (other on request) RS 485 Modbus RTU Protocol

17 NEPHELOMETRIC TURBIDITY MEASURING CELL Turbidity measurement without contact with the sample 90 scattering method compliant with ISO 7027 / EN with visible light beam Black rigid PVC sensor body Optional built-in debubbler device applicable externally No mechanically moving parts Measurement pre-processed in the sensor which provides high sensitivity in low-signal transmission S461N Nephelometric cell Chemitec DIGITAL SENSORS Fast calibration using the pre-calibrated calibration plate, supplied with the instrument Measuring turbidity in primary water upstream of treatment plants, industrial or recirculating water Measuring turbidity in wastewaters leaving the treatment plant, industrial waters with high levels of turbidity, aggressive media, wastewater containing starch, oils and fats s Measuring method Precision Repeatability Response time Maximum flow rate Contact material Power supply Calibration NTU, (optional NTU) 90 Scattering ±3% of the f.s. 95 % 2 minutes for 90% of the f.s. 300 L/h 0 50 C 2 bar PVC 12 24Vdc 10 mt by known point

18 LOW TURBIDITY MEASURING CELL The measuring principle is the deviation of light produced by the particles suspended in the liquid. S462PVC turbidimetric cell with PVC body Thanks to the dual sensor system, turbidity can be measured at low and very low concentrations with high levels of precision and repeatability. The absence of contact with the measuring liquid and the optical LED technology make the system stable over time and minimize the need for recalibrations. The cell can be installed directly in-line. The maximum allowable pressure is 6 bar, or on Bypass piping. The flow rate does not affect the measurement. Water treatment plants, on leaving the filtration or decantation sections Waste water refining plants for agricultural or industrial reuse S462INOX turbidimetric cell with AISI body Food industry, in particular in the production of beverages, wine, beer etc. Swimming pools Models S462PVC S462INOX FTU FTU 0 45 C 0 90 C 6 bar 6 bar Black PVC AISI 316 Connections threaded 2 ½ F threaded 2 ½ M Inner lining - Black PTFE Inspection windows Projector and sensors Trasparent PVC positioned at 180 mounted on PVC flanges with connector for electrical connections Tempered glass positioned at 180 mounted on stainless steel 316 flanges with integral 5 m outgoing cable

19 TURBIDITY PROBE 20 mm 1 GAS Turbidity refers to the scattered component of a light beam which is diverted away from its natural course e by optically denser particles in the medium (e.g. solid matter particles). The measurement is performed by using a 90 scattered light method compliant with ISO 7027 / EN The measuring method is based on the Tyndall effect. The turbidity of the medium is determined by the amount of scattered light. 207 mm Chemitec DIGITAL SENSORS Untreated water and well water, surface water, drinking water, process water, industrial and municipal wastewater seawater Ø 42 Available versions with PVC body, with 4 20mA outputs Models s Measuring method Precision Repeatability Response time O-ring Optics Mechanical protection Power supply Power consumption Signal interface S461T for immersion and bypass (in combination with S305/S461T) 0 4, NTU ( on request) Low turbidity version 0 1 NTU on request 90 Scattering ± 2% of the f.s. 98 % 5 sec. to reach the 90% of the value 0 60 C 4 bar Black PVC and AISI 316 Viton Special glass IP68 Sensor + cable 12 24Vdc max. 3W 10 mt integral with the sensor S461T INS for insertion (in combination with S305/INS) Modbus RTU Standard Protocol RS485 (4 20mA optional)

20 PROBE FOR SUSPENDED SOLIDS 20 mm 1 GAS Turbidity is a decrease of water transparency due to the presence of suspended solid, t consist of very fine particles, unable to settle in a reasonably short time. The particles in suspension determine an absorption of light radiation according to the number and size of the Comparing the absorption of the test sample with values derived from a known calibration curve, it is possible to determine the turbidity value. 210 mm Chemitec DIGITAL SENSORS Sludges from biological processes, chemical industry paper mills, food, extraction systems: quarries, tunnels, aggregate extraction Ø 42 Available versions with PVC body, with 4 20mA outputs Models Measuring method Precision Repeatability Response time O-ring Optics Mechanical protection Power supply Power consumption Calibration S461S for immersion 0 30 g/l Absorption of light ± 3% of the f.s. 98 % 5 sec. to reach the 90% of the value 0 60 C 4 bar Black PVC and AISI 316 Viton Special glass IP68 Sensor + cable 12 24Vdc max. 3W 10 mt integral with the sensor by points S461S INS for insertion (in combination with S305/INS) Signal interface Modbus RTU Standard Protocol RS485 (4 20mA optional)

21 FLOW-THROUGH AND INSERTION PROBE HOLDER 66.5 mm The flow-through S305/461T probe holder is used to insert the S461 sensor for the optical measurement of turbidity in the bypass plant. Reliable concentration measurement thanks to the use of an optical measurement process Scattering method with pulsing infrared light beams System with degasser to avoid the formation of air bubbles within the measuring chamber Gray rigid PVC probe holder body 700 mm No mechanically moving parts Measurement pre-processed in the sensor which provides high sensitivity in low-signal transmission Washing system Turbidity measurement in drinking water and in water with low turbidity ranges 420 mm Plate Gray PVC PP 0 50 C 3 bar The probe holder S305/INS for insertion into the pipe is used for Turbidity/Suspended Solids sensors. Ball valve Connection Complete with STAINLESS STEEL AISI316 DN 40 for extraction of the probe without interruption of the process welded for mounting on pipe fixing brackets of the safety sensor

22 PROCESS ISE PROBE FOR AMMONIA, POTASSIUM, NITRATES, CHLORIDES AND TEMPERATURE MEASURING 334 mm 1 GAS S470 is a complete family of ion-selective (ISE: Ionselective electrodes) probes suitable for monitoring the performance of the ammonium ion (as NH 4+ or NH 4 N) and nitrate ion (as NO 3 or NO 3 N) into a liquid matrix. Chemitec DIGITAL SENSORS Particular attention has been paid to identify a set of sensors stable and at the same time sensitive. For this purpose, it has also been introduced a reference electrode with a particularly high performance and a high capacity of compensation of the pollutants. The used sensors allow a correct reading of the above analytes in the following applications: surface waters wastewater zootechnical and industrial process water Ø 76 The S470 family consists of 3 elements: S470/NH 4+ Sensor for ammonium ion (0 100ppm) with compensation of the potassium ion (0 1000ppm) S470/NO 3 Sensor for nitrate ion (0 100ppm) with compensation of the chloride ion (0 5000ppm) Ground NO 3 Ref. NH 4 + K + S470 Combined Sensor for ammonium (0 100ppm) and nitrate (0 100ppm) ions with compensation of the potassium (0 1000ppm) and chloride (0 5000ppm) ions Cl All the specific electrodes are individually replaceable. The main ISE (ammonium and nitrate) are placed alongside the secondary sensors (potassium and chloride ISE) that have the task of monitoring the most important interferers and allow the instrument to have a correct compensation of the data. Installation and commissioning are extremely easy to perform, as well as the routine maintenance and the replacement of the finished sensors. In the protection ring nut of the probe holder there are integrated cleaning nozzles, which can be connected to a line compressed air or water. The cleaning system is controlled directly from the control unit. The configuration and calibration operations of the sensors on the 50Series control unit have been simplified to the maximum in order to ensure an extreme ease of use to all the operators.

23 The sensor is composed by 3 or 5 (depending on the configuration) ionselective electrodes housed in an AISI 316/PVC sensor body, realized in order to offer the maximum chemical compatibility with the project environments. These sensors are individually replaceable and have been constructed in such a way to ensure maximum efficiency and response speed. Nozzles for automatic cleaning (managed by the control unit) are integrated into the probe. Communication with the controller is made via digital RS485 Modbus protocol. In this way, the field interferences are virtually void and the sensor can be installated even at considerable distances from the control unit. Calibration The probe is factory pre-calibrated using standard solutions. The curve stored in this way can be customized by entering the analysis values of the customer (the correction of the field allows to take into consideration any peculiarities of the matrix). It's possible to enter a table of custom values (6 points) and let the probe work on a custom curve. The factory calibration curve, however, remains always available and could be set again as default. + NH 4 K ppm (*) ppm NO 3 Cl ppm (*) ppm Temperature 0 50 C Measuring method Precision Response Refresh time Operating ph range Temp. compensation O-ring Protection, electrodes' housing and superior cap Mechanical protection Power supply Signal interface Ion-selective sensors ± 1mg/L or ± 1 % 90% of the value in less than 60 seconds maximum < 1 second 4 10 ph with internal NTC probe 0 50 C 1 bar AISI 316 NBR Black PVC IP68 Sensor+cable 12 24Vdc 10m submersible Modbus RTU Standard Protocol (*) on request ppm