42 series. Process control device. Display. Data recording. PID control. 2 analogue outputs. 4 digital outputs

Transcription

1 42 series The 42 series developed by Chemitec is dedicated to the water treatment and industry sectors, and enables the following parameters to be measured: ph/redox Dissolved oxygen Conductivity Turbidity Suspended solids Chlorine Chlorine dioxide Ozone Process control device Display Simultaneous measurement (numerical and bar graph) and temperature values. Scrolling output values. Graphic icons for: status of digital outputs, washing cycle, data recording, alarms. Possibility to display the measurement only in large format. Data recording 4-bit internal flash memory (about 16,000 records). Recording interval: 1 to 99 min. Type: Circular (F.I.F.O.) or filling. Ability to view the logged data in table or graphic form, with indication of the maximum, minimum and average values in the selected periods. Wall-mounted version with IP66 protection rating (144 x 144 x 120 mm) PID control P - PI - PID functions activated on the analogue or digital output. Proportional range: 0 to 500%. Integral time: 0:00 to 5:00 min. Derivative time: 0:00 to 5:00 min. Panel-mounted version (144 x 144 x 100 mm) 2 analogue outputs Output 1 programmable for measurement. Output 2 programmable for measurement / temperature / PID control. The limits of the outputs are freely programmable within the measuring range. 4 digital outputs ON/OFF set point: Programming the operating range (hysteresis/direction) and start/stop time 000 to 999 seconds. PID control: Pulses, frequency or PWM (2 set points). 18

2 Alarm Programmable for: tool faults, minimum, maximum, set point delay, stay time (live check). Delay time: 00:00 to 59:59 mm:ss with minimum interval of 15 sec. Stay time 00:00 to 99:59 hh:mm Set point deactivation (in case of alarm): Enabling/Disabling. Washing electrodes Programming the interval (minimum 15 min) and the duration. During washing, all the analogue and digital outputs are frozen. Digital input To disable the doses. RS485 serial port For set-up and remote real time acquisition or for downloading data (using dedicated software). MODBUS RTU communication protocol. USB port USB for direct download on PEN DRIVE (optional). Manual controls Possibility to simulate the analogue and digital outputs from the keypad. Temperature compensation Using PT100 sensor with 3 or 4 wires, or PT Electrical connections Input Measure Input Temperature Vac/dc Input Serial Port RS485 1st Channel Serial Port RS485 2nd Channel USB port Input Temperature VAC-VDC input Digital input Digital Input Power Supply Vac 4 5 CPU 9 Output 4 20 ma 1st Channel Output 4 20 ma 2nd Channel Universal power supply VAC Ground Keypad and graphic display Ground 6 NO Relay 1 Setpoint Output Keypad Graphic display 7 10 NO NO NO Relay 2 Setpoint Relay Alarm/Temp1 Relay Alarm/Temp2 8 9 RS485 serial port and USB Current outputs 10 Digital outputs Set Point 1 Set Point 2 Alarm /Temp 1 Washing / Temp 2 19

3 Simple and intuitive software Interactive, easy to read interface Main menu with graphic icons Display of stored data in graphical form, even during RUN TIME measurement MODBUS RTU serial interface for: Communication of data in real time Downloading the data stored on PC via SW or directly on the removable USB pen drive (optional) 20

4 Dimensioni Wall-mounted version with IP66 protection rating , Ø x pg x pg Panel-mounted version 144 x 144 Panel-mounted version 96 x

5 4238 ph/redox ph 0 to 14 ph Resolution 0,01 ph REDOX ±1500 mv Resolution 1 mv Dual parameter versions available [ph/redox - ph/redox] [ph/redox - Conductivity] [ph/redox - Inductive cond.] [ph/redox - Dissolved oxygen] [ph/redox - Turbidity/SS] ph and REDOX electrodes The electrodes shown below are all of the combined type (Measuring + Reference), do not require maintenance and differ in their structural characteristics, making them suitable for many applications. The elements that must be considered when choosing an electrode are: measuring range, temperature, pressure and chemical substances present in the sample and type of assembly on the system. Model Measuring range Minimum conduc. Maximum temperature Maximum pressure Porous baffle Fill Connections Process fitting Material S401/VG 2 to 14 ph 5 µs 80 C 6 bar Open hole GEL S7 PG 13,5 S401/LC 0 to 14 ph < 0,2 µs 40 C 16 bar Open hole GEL S7 PG 13,5 Glass 12x120 Glass 12x120 ph S402/PS 0 to 14 ph 5 µs 80 C 0,2 bar Annular KPCL/ KN03 5 m cable standard 12 Glass 12x230 S408/MEC 0 to 14 ph 50 µs 130 C 16 bar Open hole GEL S7 PG 13,5 S408/POL 2 to 14 ph 5 µs 90 C 6 bar Open hole GEL S7 PG 13,5 Glass 12x120 Glass 12x120 S403/PS ±1000 mv 50 µs 60 C 0,2 bar Annular KPCL/ KN03 5 m cable standard 12 Glass 12x230 REDOX S406/VG ±1000 mv 50 µs 80 C 6 bar Open hole GEL S7 PG 13,5 S406/POL ±1000 mv 50 µs 130 C 16 bar Open hole GEL S7 PG 13,5 Glass 12x120 Glass 12x120 22

6 Sonde ph e REDOX con uscita RS485 ph or REDOX measurement using measuring technique for demanding or prohibitive applications Replaceable measuring and reference electrodes Built-in temperature with PT100 Galvanically-isolated RS485 output S401DIFF digital ph probe ph from 0 to 14 Temperature from 0 to 50 C Characteristics Materials PVC / Glass Dimensions Protection rating Power supply Connections Length of cable (included) Length 230 mm? 42 mm IP68 12VDC 1 Gas 10 m S406DIFF digital Redox probe REDOX from to mv Temperature from 0 to 50 C Characteristics Materials PVC / Glass Dimensions Protection rating Power supply Connections Length of cable (included) Length 230 mm? 42 mm IP68 12VDC 1 Gas 10 m 23

7 4222 Conductivity Conductivity 0 to 20 μs; 0 to 200 μs; 0 to 2,000 μs; 0 to 20,000 μs; 0 to 200,000 μs Resolution 0.01 μs; 0.1 μs; 1 μs; 10 μs S411-S428 Conductivity probes Specially designed for use in an industrial environment, these make it possible to cover a very wide measuring range, thanks to versions with temperature sensor, special versions with PVC, PTFE, PVDF body, graphite, steel or platinum electrodes. Conductivity is measured by submerging the two metal electrodes of the probe in the solution to be measured. The passage of current between the two probes allows the electrical resistance of the liquid and therefore its conductivity to be measured. The measurement is influenced by the temperature. In saline solutions, there are variations of 2% / C. This variation can reach 7% / C, therefore the use conductivity probes with no temperature sensor is preferable if the solution being examined remains at a temperature of between 15 C and 25 C. Dual parameter versions available [ph/redox - Conductivity] [Chlorine - Conductivity] Model Measuring range Constant Max. temp. Max. press. Body material Electrode material Process fitting S411S 0 to μs K=1 50 C 1 bar PVC AISI GAS - Connections S411 0 to μs K=1 50 C 2 bar PVC Graphite 1 GAS 5 m or 10 m integral cable S411/TEF 0 to μs K=1 100 C 2 bar PTFE AISI GAS 5 m integral cable S411/C (*) 0 to μs K=1 50 C 2 bar PVC Graphite 1 GAS 5 m integral cable S411/TEF/C (*) 0 to μs K=1 70 C 4 bar PTFE AISI GAS 5 m integral cable For industrial applications S411/4E (*) 4 cylindrical electrodes S428 K0.1 High range S411/U K0.1 (*) High range S411/U K1 (*) Medium range S411/U K10 (*) Low range S411/P K100 (*) Very low range S411/P K10 (*) Low range 0 to ms K=0,55 70 C 4 bar EPOXY Graphite 13.5 PG 5 m integral cable 2 to 100 ms K= C 0,2 bar Vetro Platinum - Four-pole screw connector 10 to 200 ms K= C 2 bar PES Graphite ½ NPT Four-pole screw connector 0 to µs K=1 120 C 2 bar PES Graphite ½ NPT Four-pole screw connector 0.05 to 200 μs K= C 2 bar PES Graphite ½ NPT Four-pole screw connector 0.04 to 20 μs K= C 16 bar AISI 316 AISI 316 ½ NPT Four-pole screw connector 0 to 1000 μs K= C 16 bar AISI 316 Graphite ½ NPT Four-pole screw connector 24

8 4223 Inductive conductivity Conductivity 0 to 1,000 μs; 0 to 10,000 μs; 0 to 100,000 μs; 0 to 1 Simens (0 to ms) Resolution 1 μs; 10 μs; 100 μs; 1,000 μs S411/IND Inductive conductivity sensors Low maintenance Versions for in-line, submersion or tank installation Ideal for cooling towers, process water, concentrated solutions Dual parameter versions available [ph/redox - Inductive cond.] [Chlorine - Inductive cond.] The S410/IND series of inductive sensors has been engineered and developed to produce an electrode that is very powerful but at the same time competitive. The result has been obtained by moulding the sensor made using polypropylene reinforced with fibreglass. This sensor offers all the advantages of the inductive cond. measurement method, including the absence of passivation of the conventional conductivity electrodes. All the sensors in the S410/IND range are temperature-compensated, and are also designed for inline, submersion or tank installation. Technical data Sensor Temperature Contact materials Temp. compensation -5 to 60 C (without freezing) Glass-reinforced polypropylene 2 PT1000 wires Mechanical construction Materials Operating temperature Submersion length PVC with Viton gaskets -5 to 60 C (without freezing) 600 or 1200 mm Cable Connection Protection rating Standard 5 metre ½" BSP male IP68 Assembly Operating pressure Standard bracket or optional flange From vacuum to 6.5 bar (100 psi) 25

9 4283 Dissolved Oxygen Dissolved oxygen 0 to 20.0 ppm or mg/l - 0 to 200% SAT Resolution 0.1 ppm or mg/l - 1% SAT Dual parameter versions available [ph/redox - Dissolved oxygen] [Turbidity - Dissolved oxygen] [Suspended solids - Dissolved oxygen] [Dissolved oxygen - Dissolved oxygen] with S423/C/OPT optical sensor only S423/OXYSENS Main measuring range The oxygen contained in the liquids is measured using the so-called Clark cell system. These cells generate a current proportional to the partial pressure of the oxygen, which can be detected using a suitable signal converter. In order to prevent interference during measuring, the Clark cell is protected by a gas-permeable membrane. The membranes typically used are made from PTFE but, as this material is mechanically fragile, frequent changing is often necessary, along with the related demanding operations (interruption of measurement, replacement of the electrolyte, regeneration of the electrodes). The S423 solves this problem by using a membrane made from OPTIFLOW. Manufactured as a sheet around a layer of steel, it is very stable mechanically and very resistant to chemically aggressive environments as well as high pressure. Thanks to the special construction of the measuring electrodes, this system also makes the sensor totally maintenance free. Maintenance OXYSENS sensors are maintenance-free, and do not require the replacement of the membrane, electrolyte or regeneration of the electrodes, to measure the oxygen in aqueous samples. Typical applications include water treatment plants and the fish industry. Technical data Electrode material Electrolyte Membrane Temperature sensor Polarisation current Sensitivity Stabilisation time Silver-platinum combination Alkaline solution OPTIFLOW NTC 22 kohm /- 50 mv Operating temperature C Storage temperature Pressure Outer diameter Connection na at 25 C in air typical 15 min., max. 1 h C, with water inside the protective cap bar during insertion; max. 0.5 bar in total during submersion 12 mm PG 13.5 threaded Construction materials Regeneration Response time t 98% Temperature response Measuring liquid speed stainless steel, PEEK, silicone, NBR not required max. 60 s at 25 C, from air to nitrogen approx. 3.1%/K min m/s Influence of flow rate < 5% at 25 C Oxygen consumption approx. 20 ng/h in air at 25 C Residual current Zero drift Sensitivity drift < 0.5% current in air < 0.5% current in air every 2 months at 25 C or in water in stable conditions < 10% every 2 months at 25 C in water in stable conditions 26

10 S432/C/OPT Oxygen and temperature sensor with OPTICAL technology Optical technology: no membrane or electrolyte No signal drift: no calibration Digital output: Modbus RS-485 Sturdy stainless steel structure Fields of application Biological purification systems (aeration, nitrification/denitrification tanks etc.) Industrial water treatment plants Monitoring surface water Aquaculture Water conditioning Optical technology The S432/C/OPT sensor measures oxygen with a built-in temperature probe. The measuring technique is based on the optical principle: a diode emits a light blue towards a support on which a fluorescent substrate is applied. The substrate initially reacts by emitting a red light (luminescence), then returns to its initial state. The intensity of the red light produced and the rate of return to the initial state are related to the concentration of oxygen present. This innovative method ensures reliable, accurate measurements with no drift over time, therefore system calibration is no longer necessary. No maintenance is required except for replacing 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. Digital technology Built-in pre-amplification circuit and digital signal processing. The S432/C/OPT sensor saves the calibration data for optimal data management. The output signal is provided on the RS 485 serial port. Physical characteristics Compact, sturdy and lightweight, the stainless steel body enables fixed or portable applications. Technical data Measuring principle Optical by means of luminescence s 0,00 20,00ppm / % Sat 0 50 C Resolution 0,01 ppm Precision +/-0,1ppm / +/-1 % Temperature compensation via NTC Response time 90% of the actual value in less than 60 seconds Liquid stirring speed Not required Digital interface RS-485 Modbus Maximum refresh time < 1 second Membrane Electrodes Electrolyte Dimensions Weight Materials in contact with the liquid Maximum operating pressure Protection rating Interchangeable sensor cap Typical duration 2 years. No electrode No electrolyte Diameter: 34 mm Length: 180 mm Fitting: 3/4" male 850 g (sensor + 10 m cable) Stainless steel 316L/PVC 5 bar IP68 Storage temperature C 27

11 4293 Chlorine and other oxidants from 0 to 100,000 ppm to be selected in relation to the type of sensor connected Dual parameter versions available [ph/redox - Chlorine] [Turbidity - Chlorine] [Chlorine - Conductivity] [Chlorine - Inductive cond.] [Chlorine - Chlorine] chosen from Free, Total, Dioxide, Ozone, PAA, H2O2 S 494 Amperometric sensors with membrane Amperometric sensors with 2 or 3 membrane-covered electrodes with built-in temperature sensor for signal compensation. Assembly in a flow-through cell with constant flow (S305PX). Technical data Fields of application Working conditions Time Point calibration Materials Dimensions Warnings Swimming pool, drinking, service, process water. The sample should not contain surfactants. The ph value must be constant. Amperometric system with two or three membrane-covered electrodes with internal electrolyte : >0.01 to <100,000 mg/l error: ±2 % of the value read Reproducibility: ±2 % Stability: ± 1% of the analytical determination 4 weeks after calibration Speed of the sample on the membrane: 15 cm / sec Hydraulic feed flow: l/h, constant Acceptable overpressure: 1 bar Operating temperature: > 0 to 45 C (others on request) Temperature compensation: automatic via built-in NTC sensor First polarisation: 1 h Re-polarisation: 10 min Response: T90: approx. 30 sec. Zero: not necessary Work: as needed by the user, through analytical determination (colorimetric with DPD) Sensor body: PVC, silicone, PTFE Membrane: semi-permeable PTFE (Teflon) Electrolyte solution: aqueous containing potassium chloride Measuring electrode: Gold (cathode) Reference electrode: (Anode): silver/halogenated silver Diameter approx. 25 mm / Length approx. 175 mm Check electrolite status every 3 to 6 months Electrolyte solution lifespan: approx. 1 year 28

12 S305PX494 Flow-through electrode holder for chlorine, chlorine dioxide, ozone, chlorite, PAA, H 2 O 2 etc. membrane sensors F Materials Plexiglas cell and fixing brackets PVC fittings and valves Stainless steel float NBR O-ring Working conditions Max operating temperature: 60 C Max operating pressure: 4 bar E A Liquid inlet F Chlorine detection probe A C B D L I G H B C D E Temperature sensor (OPTIONAL) Proximity sensor: Stainless steel float sensor Probe clamping ring nut G H I L Liquid outlet Sample tap Cylinder head screw for grounding Flow regulator Parameter Operating ph range Free chlorine 0,01 0,50 ppm 0,01 5,00 ppm 0,01 20,00 ppm 0,01 2,00 ppm 0,01 10,00 ppm 0,1 200,00 ppm Total chlorine 0,01 0,50 ppm 0,01 5,00 ppm 0,01 2,00 ppm 0,01 10,00 ppm 4 12 Free organic and inorganic chlorine 0,01 2,00 ppm 0,01 10,00 ppm 0,01 5,00 ppm Chlorine dioxide 0,01 0,50 ppm 0,01 10,00 ppm 0,01 2,00 ppm 2 11 Ozone 0,01 0,50 ppm 0,01 5,00 ppm 0,01 2,00 ppm 0,01 10,00 ppm 2 11 Peracetic acid ppm ppm ppm ppm ppm 2 11 Hydrogen peroxide ppm ppm ppm ppm ppm ppm 2 11 Chlorites 0,02 0,50 ppm 0,10 2,00 ppm

13 4261 Turbidity Turbidity 0.00 to 10.0 NTU ; 0.0 to 100 NTU ; 0 to 1000 NTU Resolution 0.1 NTU; 1 NTU Nephelometric measuring cell Applications Measuring turbidity in primary water upstream of treatment plants, industrial or recirculating water Measuring turbidity in waste water leaving the treatment plant Dual parameter versions available [Turbidity - Chlorine] [Turbidity - Conductivity] Characteristics and advantages Reliable measurement of concentration through the use of an optical measurement process without contact with the sample 90 scattering method compliant with ISO 7027 / EN with visible light beam Black rigid PVC sensor body Built-in debubbler device No moving mechanical parts pre-processed in the sensor which provides high sensitivity in low-signal transmission Fast calibration using the pre-calibrated calibration plate, supplied with the instrument. Technical data Measuring method s Precision Repeatability 95 % Response time Calibration 90 scattering 0 10, 0 100, NTU to be selected from the keypad ±3% of the f.s. 2 minutes for 90% of the f.s. by known point Materials in contact with the liquid PVC Maximum pressure 2 bar Flow Rate min. 60 l/h - max. 300 l/h Sample temperature 0 50 C Ambient humidity 5 95% non-condensing Length of outgoing cable 10 m Power supply 12 24VDC 30

14 4262/4264 Turbidity Turbidity 0.00 to 1.00 NTU ; 0.0 to 10.0 NTU ; 0 to 100 NTU Resolution 0.01 NTU; 0,1 NTU; 1 NTU Dual parameter versions available [Turbidity - Dissolved oxygen] [Turbidity - Chlorine] S462 Turbidimetric cells S462 turbidimetric flow-through measuring cells. The measuring principle is the deviation of light produced by the particles suspended in the liquid. 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 minimise the need for re-calibrations. 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. Applications Water treatment plants, on leaving the filtration or decantation sections. Waste water refining plants for agricultural or industrial reuse. Food industry, in particular in the production of beverages, wine, beer etc. Swimming pools water. Turbidimetric cell with PVC S462/PVC body Turbidimetric probe with AISI S462/stainless steel body [for 4264 series only] S462/PVC s from 0.00 to 100 FTU Max pressure 6 bar Max temperature 45 C Materials Black PVC body with threaded fittings 2 ½ F - Transparent PVC inspection windows Projector and sensors positioned at 18 mounted on PVC flanges with connector for electrical connections Supplied 2 x 5 m cables with quick connector S462/INOX s from 0.00 to 100 FTU Max pressure 6 bar Max temperature 90 C Materials Stainless steel body with threaded fittings 2 ½ M - PTFE lining black - Tempered glass inspection window Projector and sensors positioned at 180 mounted on stainless steel 316 flanges with integral 5 m outgoing cable 31

15 4263 Turbidity & suspended solids Turbidity 0.0 to 4.00 NTU ; 0.0 to 40.0 NTU ; 0 to 400 NTU ; 0 to 4,000 NTU Resolution 0.01 NTU ; 1 NTU Suspended solids from 0 to 9999 g/l to be selected in relation to the type of probe connected S461 Submersible turbidity/ss probes Dual parameter versions available [Suspended solids - Dissolved oxygen] [Suspended solids - Chlorine] The S461 sensor is used for the optical measurement of turbidity in pure and process water up to 4000 NTU or to determine the concentration of sludge up to 20g/l. Applications Measuring turbidity in waste water Measuring turbidity in primary water, industrial water, recirculation water Measuring the concentration of sludge in biological water treatment plants and industrial water. Characteristics and advantages High level of reliability of the measurement thanks to the use of optical infrared technology (880 nm) 90 scattering method for turbidity and absorption (according to Beer-Lambert) for suspended solids Stainless steel 316 sensor body No moving mechanical parts pre-processed in the sensor which provides high sensitivity in low-signal transmission Turbidity probe S461/T Probe for suspended solids S461/S Technical data Materials Stainless steel 316 Special glass lens Viton O-ring Threading Measuring method Accuracy 1 GAS Repeatability 98 % S461/T 0 to 4/40/400/4000 NTU S461/S 30 gr/l 90 scattering/light absorption ± 3% of f.s. Calibration by points Temperature 0 to 60 C Maximum pressure 4 bar Protection rating IP68 (cable included) Cable length 10m Power supply 12 to 24VDC Outputs RS485 Dimensions 42 x 230 mm 32

16 7520 SAV-T/E 7540 SRH-T/E Probes for high concentrations The 7520SAV and 7540SRH probes are used to determine high and very high concentrations of suspended solids, up to 150g/l. Applications Measuring the concentration of sludge in biological water treatment plants: primary sludge, thickened sludge, recirculation sludge, feeding press belts/centrifuges. Measuring the concentration of suspended solids in extraction systems: quarries, tunnels, aggregate extraction. Characteristics and advantages Reliable measurement thanks to infrared optical measurements at 880 nm Dual pulsed light beam system to compensate for drift from optical components. Stainless steel sensor body No mechanical moving part Digitised signal inside the probe body, reducing the possibility of electrical interference in the signal transmission 7520 SAV-T/E 7540 SRH-T/E Technical data Mechanical specifications Dimensions (L x? ) submersion insertion ? mm (7520 SAV) ? mm (7540 SRH) ? mm Weight submersion insertion approx. 1 kg approx. 3 kg Materials Sensor body AISI 316 Ti Indicator light O-rings Epoxy Viton Measuring principle Light absorption (7520 SAV) Back radiation (7540 SRH) Optical components Light measurement Accuracy Light source: 2 LEDs, detectors: 2 photodiodes Infrared light at 880 nm (maximum absorption) 0 70 g/l in relation to the type of sludge (7520 SAV) g/l in relation to the type of sludge (7540 SRH) ± 1% of the f.s. Repeatability 99.5 % Cable length Calibration T version E version 13 m 1 m + 10 m extension cable with silica as standard Working condition Temperature C Pressure max. 6 bar Protection rating IP 68 33