SS Concentration Analyzer

Transcription

1 SS Concentration nalyzer Model : SSD-6 (for Low Concentration Measurement) SSD-6 (for Medium Concentration Measurement) n SS concentration analyzer is an optically based measurement instrument for continuously measuring the concentration of suspended solids in sewage, human waste, or industrial wastewater treatment plants or mixed liquor suspended solids in an aeration tank. There are two types of SS concentration analyzers: low concentration measurement and medium concentration measurement. The former mainly measures the concentration of suspended solids and the latter measures mixed liquor suspended solids. (MLSS: Mixed Liquor Suspended Solid) n SS concentration analyzer consists of a compact piston detector, designed to be immersed in the sample water; and a transmitter, designed to convert SS concentration into an amount of direct current from 4m to m, as well as an RS-485 digital output. Immersion type detector Features Compact immersible piston detector design The detector has an optical cylinder cell with a wiper that is moved up and down slowly by a small DC motor, allowing sample water to be suctioned and discharged while cleaning the cell window, for long-term stable measurement. Wide measurement range There are three manually selectable ranges: - 3/ 5/mg/L for low concentration measurement and - 5//mg/L for medium concentration measurement. Less susceptible to external light The detector is almost unsusceptible to external light, because blank measurement is always performed by turning off the light source to correct the calculation. Different types of detectors available to support various applications There are three types of detectors available: a. to.5m immersion-type detector, a small, light-weight Drop-in-type detector designed for use in a to 6m long protection pipe, and a pipe insertion-type detector designed to be directly inserted into a pressurized pipe. Long-life optical system The optical system consists of a set of high-intensity infrared LEDs and photodiodes, and provides high reliability and long life. RS-485 (standard) digital signal Supports Modbus communication. Configuration Transmitter <Field> <Control room> cable Transmission output 4-m DC Receiver 5 or m RS-485 digital output for communication (DCS) Range indication signal and alarm output (contact) -4V C instrument power supply

2 Standard Specifications Model SS concentration analyzer (for low concentration measurement) SSD-6 SS concentration analyzer (for medium concentration measurement) SSD-6 Transmitter Installation Enclosure Material and finish Coating color Display Measurement (or cleaning) cycle interval Transmission output Communication Contact output Operation switch Operating power Power consumption Cable ports mbient temperature /humidity Weight Measurement method Transmitted and scattered light comparison Transmitted light measurement Measurement cell Cylindrical glass cell, ø/ inch Cylindrical glass cell, ø/4 inch : On-site installation 5 pipe or wall/rack mount : IP65 (dust-protected, water jet-protected) : Die-cast aluminum, polyester resin : Metallic silver : Digital LCD display : pprox. 5 seconds (5-999 seconds selectable) ecause it takes approx.5 seconds for the one batch for measurement during measurement (cleaning) cycle, the measurement value will be renewed every 5 seconds if the cycle is set at 5 seconds. In case of 3 seconds of the interval by factory setting, the measurement will be repeated at every 5 seconds being intermittent with 5 seconds of waiting time between. : 4 - m DC, insulated Load resistance 6Ω or less : RS-485 (insulated) Protocol Modbus/RTU Data length 8 bits aud rate Select from /4/48 /96/9/384/576 bps. Parity Select from NONE/ODD/EVEN. Stop bits bit Data orde IG ENDIN : 6 circuit-make contacts (contact a ) Power-Off, Ranges, Under Maintenance, nalyzer Fault, Contact capacity 3V DC,. (resistive load) : Waterproof touch keys (7) : - 4V C ±% 5/6Hz : pprox. V (5V maximum) : G/ x 6 (grounded for ø6 - cable) : - - 5ºC 95% RH or lower (non-condensing) : pprox. kg Measurement range - mg/l - mg/l Transmission output range Three manually selected ranges ( - 3/5/ mg/l, (The range can be set in steps of mg/l from 3 to mg/l.) Three manually selected ranges ( - 5// mg/l, (The range can be set in steps of mg/l from 3 to mg/l.) Installation Materials Outside dimension Cell cleaning Wiper drive cable length Sample water requirements Weight Performance Repeatability Zero drift Span drift Responsiveness Warm-up time Major application Water from treated primary settled wastewater, inflow wastewater, clear water in sludge concentration tanks, and industrial wastewater Mixed liquid in an aeration tank, return sludge, and surplus sludge : Immersion type. -.5m long Drop-in typ - 6m protection pipe used Pipe insertion type.6m (Special installation device available for each type) : Enclosure SUS36/rigid PVC Measurement cell Pyrex glass Wiper Urethane rubber cable PVC Extension pipe for immersion type SUS36 Protection pipe for tube type SUS34/SUS36 : ø5.8 (basic length : 65mm) : The inside of the measurement cell is automatically cleaned while suctioning or discharging sample water with the wiper. : Compact DC motor and slide mechanism Vertical travel time pprox. 5 seconds : 5 or m : Pressure mbient pressure for immersion and protective tube types (maximum water depth ; 6.3m). MPa or lower for pipe insertion type Temperature - 5 ºC Velocity of flow m/sec or less : ody length.6m / Insertion type : pprox. 3kg Immersion type. -.5m pprox. 4-7kg Drop-in type - 6m pprox. 5-5kg : ±% FS (by the supplied check bar) : ±% FS/week (based on simulated input) : ±% FS/week (based on simulated input) : 9% response can be set in steps of one minute from one minute to 6minutes. : pprox. 5minutes For the factory settings, the supplied check bar value is a Formazin value for low concentration measurement, and a value based on Class 5 fly ash (as specified in JIS Z 89-6 "test powder and test particles") for the medium concentration measurement.

3 Calibration ecause sludge is complex and diverse in composition and characteristics, it is impossible to clearly define a specific substance as standard sludge. It is therefore necessary to set the measured value to a manually analyzed value for each sludge sample. () nalysis data-based calibration fter installing the instrument, perform SS analysis (weight method) for as many samples as possible. Prepare a calibration curve by comparing the analysis data with the instrument readings and calibrate the instrument based on the calibration curve. () Check bar-based calibration fter calibration with analysis data, measure against the supplied check bar and record the indicated values. fter this, calibration of the instrument is performed with the check bar. Principle of Measurement Sample water without SS particles is transparent, but sample water with SS particles is opaque. ecause the opacity (or the number of particles) is proportional to the SS concentration, it is possible to determine the SS concentration by illuminating the sample water with light and measuring a change in the light intensity. (SS : Suspended Solid) The Model SSD-6 for low concentration (SS : mg/l or less) measures and compares scattered and transmitted light and converts the comparison result into a more accurate SS concentration value. The Model SSD-6 for medium concentration (SS : 5 - mg/l) measures only transmitted light and converts the result into a SS concentration value. The light source LED, measurement cell, and transmitted light (and scattered light) receivers are arranged as shown in the figure on the right. The wiper continuously moves vertically in the cylindrical measurement cell. When the wiper moves up, sample water is suctioned into the measurement cell for measuring the amount of light. When the wiper moves down, the sample water is discharged. The wiper also serves to clean the inside of the measurement cell (cell window). assembly structure Terminal Connection Piston rod Wiper Toroidal core Transmitter Measurement cell White lack 3 4 power Receiver (photodiode) Light source (LED) Orange White Shielded C signals Scattered light receiver Transmitted light receiver Sample water (suctioned and discharged) Light source (LED) Transmitted light receiver Light source (LED) cable NO C NC Power off Under Maintenance Range Range Range 3 nalyzer Fault Contact output Contact capacity 3V DC. (resistive load) 7 7 Transmission output 4-m DC Sample water Measurement cell (glass cylinder) Sample water Measurement cell (glass cylinder) C RS485 output SSD-6 for low concentrations SSD-6 for medium concentrations 9 9 E N L E Power supply -4V C 5/6Hz

4 Measurement display Measured value: SS value Wiper status: UP or DOWN (rough wiper position information) Information shown at the bottom (Each time the [RED] key is pressed, the measurement range is displayed:) 3 mg/l : Range 5 mg/l : Range mg/l : Range 3 Currently selected range is displayed by pressing the [RED] key. Dimensions Unit : mm Transmitter 8 (7) 64 5 pipe mount Wall/rack mount Display Operation panel 8 Sunshade Saddle Display Operation panel Sunshade 5 pipe Grounding terminal Grounding terminal Immersion type detector Mounting bracket for immersion type detector cable 6±5.5 U bolt Cable ports Cable ports 4ø Stay 5 Lugs (locking against rotation) Mounting bracket ±5.5 ø.7 dapter L± securing knob SS concentration analyzer's detector (immersion type) ø.7 5 pipe 56±5.5 Main body ø5.8 L=m,.5m, m,.5m

5 Drop-in type detector Mounting bracket for Drop-in type detector cable Protective tube ø6.5 Cable support Wire Main body ø55 795± 8 4 U bolt Mounting bracket U bolt 5 6±5.5 3±5.5 ø5.8 8 Mounting bracket 5 pipe 5 pipe Protection pipe Pipe insertion type detector 4-ø5.8 Mounting hole ø7 Pipe inserter / remover (ZSSP-3) 4 cable ø8 8 all valve (optional) 5 Pressure gauge with R/4 plug (optional) mounting base ø75 68 Flange standard 65 JIS K RF Ground ±5.5 77±5.5 (Length when the detector is fully inserted) Positioning nut Feed screw Feed handle 655±7 75 securing screw ø4 3 Main body ø5.8 65± ± Pressure release valve 4 ø9 - arrow view Rotate R arrow view Rotate

6 Product code Immersion and pipe insertion types <Immersion type> SSD6-- SSD6-- Code indicating special specifications Numeric digit: 9 lphabetic character: Z 3 C D E Y 8 SSD-6 SSD-6 Measurement range* SSD-6 - (three manual ranges ( - 3/5/) (standard)) SSD-6 - (three manual ranges ( - 5//) (standard)) Measurement unit mg/l (standard) ppm Transmitter mounting type 5 pipe mount Wall/rack mount Surface finish (coating)* Standard coating High performance coating uilt-in arrester (power and transmission lines)*3 Not provided Provided Cable entry for power, transmission and signal cable*4 Cable glands for ø6 - cable (standard) Cable glands (G/ conduit threads when the cable glands are detached) NPT / supplied with 6 adapters Transmitter sunshade Not provided (standard) Provided (5 pipe mount code : 74993K) Provided (Wall mount code : 69345) mounting type and length*5 Pipe insertion type.65m (Order Pipe inserter/remover ZSSP-3 separately) Immersion type.m Immersion type.5m Immersion type.m Immersion type.5m Protection pipe material N/ mounting bracket*6 Not provided for the immersion type for the immersion type cable length*7 5m m Other (up to m) Marking Japanese English *. The upper limit of the range available for low concentration measurement is 3 - mg/l and can be set in steps of mg/l with the transmitter key switch. Example : - 3//3, - 5/3/, - /5/ The upper limit of the range available for medium concentration measurement is 3 - mg/l and can be set in steps of mg/l with the transmitter key switch. Example : - 3/6/, - /5/ If the range of transmission output other than standard range is wanted to specify at the time of delivery from factory, please specify the range and confirm it with us before ordering. *. Melamine resin is applied to primer coat and finish coat for the standard painting. The average thickness of film of paint is 3µ or more and the glossiness is G4. Melamine resin is applied to primer coat and middle coat and polyurethane resin is applied to finish coat for heavy-duty coating. The average thickness of film of paint is µ or more and the glossiness is G8. (The selection code for painting above covers only for the transmitter, therefore, if painting is required at solenoid valve in detector, pump unit section and etc, we will quote the cost separately.) *3. Ceramic surge arresters (simple type) are attached to the power and transmission lines. *4. There are 6 cable ports which are mounted with ø6 - of cable glands. When cable gland is removed, G/ of conduit threads of the entry port is appeared. When NPT/ of cable port is requested, as 6 adaptors (SUS-36) shall be supplied, replace the necessary number of the cable glands with adaptors from the ports. If some ports are not used for conduit, please leave the cable glands for sealing. *5. In principle, no other length is available. If you need a length exceeding.5m, select the Drop-in type detector. *6. This is a vertical mounting bracket for a 5 pole stand (SUS34). In principle, two brackets are necessary for a detector exceeding m. If you want the detector and transmitter to be mounted non-vertically or allow the angle to be changed during use (ZSSC- or equivalent), contact our sales office for more information. *7. The required detector cable length is 5m for an up to m long detector and m for a.5m long detector. Pipe inserter / remover <Pipe insertion type> Pole stand 6 6 ZSSP3 9 all valve Not provided Provided Special Pressure gauge Not provided Provided (GK58-7.4MPa) Marking Japanese English This is a 5 pole stanchion for mounting the transmitter or detector. Z-- Z 9 9 Pole stand length. m.6 m (standard) Special Material* 5 steel pipe (SGP) and iron plate SUS34 Special Coating color None Metallic silver Special * No coating is applied for the SUS. Pipe Rubber cover L t6

7 Drop-in type SSD6-- SSD6-- Code indicating special specifications Numeric digit: 9 lphabetic character: Z 3 F G H J K L M N P Q R S 3 8 SSD-6 SSD-6 Measurement range* SSD-6 - (three manual ranges ( - 3/5/) (standard)) SSD-6 - (three manual ranges ( - 5//) (standard)) Measurement unit mg/l (standard) ppm Transmitter mounting type 5 pipe mount Wall/rack mount Surface finish (coating)* Standard coating High performance coating uilt-in arrester (power and transmission lines)*3 Not provided Provided Cable entry for power, transmission and signal cable*4 Cable glands for ø6 - cable (standard) Cable glands (G/ conduit threads when the cable glands are detached) NPT / supplied with 6 adapters Transmitter sunshade Not provided (standard) Provided (5 pipe mount code : 74993K) Provided (Wall mount code : 69345) mounting type and length*5 Drop-in type without protection pipe Drop-in type with protection pipe.m Drop-in type with protection pipe.5m Drop-in type with protection pipe 3.m Drop-in type with protection pipe 3.m (in two pieces) Drop-in type with protection pipe 3.5m Drop-in type with protection pipe 3.5m (in two pieces) Drop-in type with protection pipe 4.m Drop-in type with protection pipe 4.m (in two pieces) Drop-in type with protection pipe 4.5m (in two pieces) Drop-in type with protection pipe 5.m (in two pieces) Drop-in type with protection pipe 6.m (in two pieces) Protection pipe material SUS34 (standard) SUS36 mounting bracke*6 Not provided Two for protective tube type cable length*7 5m m Other (up to m) Marking Japanese English *. The upper limit of the range available for low concentration measurement is 3 - mg/l and can be set in steps of mg/l with the transmitter key switch. Example : - 3//3, - 5/3/, - /5/ The upper limit of the range available for medium concentration measurement is 3- mg/l and can be set in steps of mg/l with the transmitter key switch. Example : - 3/6/, - /5/ If the range of transmission output other than standard range is wanted to specify at the time of delivery from factory, please specify the range and confirm it with us before ordering. *. Melamine resin is applied to primer coat and finish coat for the standard painting. The average thickness of film of paint is 3µ or more and the glossiness is G4. Melamine resin is applied to primer coat and middle coat and polyurethane resin is applied to finish coat for heavy-duty coating. The average thickness of film of paint is µ or more and the glossiness is G8. (The selection code for painting above covers only for the transmitter, therefore, if painting is required at solenoid valve in detector, pump unit section and etc, we will quote the cost separately.) *3. Ceramic surge arresters (simple type) are attached to the power and transmission lines. *4. There are 6 cable ports which are mounted with ø6 - of cable glands. When cable gland is removed, G/ of conduit threads of the entry port is appeared. When NPT/ of cable port is requested, as 6 adaptors (SUS-36) shall be supplied, replace the necessary number of the cable glands with adaptors from the ports. If some ports are not used for conduit, please leave the cable glands for sealing. *5. In principle, no other length is available. If you need a length of.m or less, select the immersion type detector. *6. These are two vertical mounting brackets for a 5 pole stand (SUS34). If you want the detector and transmitter to be mounted nonvertically or allow the angle to be changed during use (ZSSC- or equivalent), contact our sales office for more information. *7. For an up to 3m long protective tube, the 5m detector cable is necessary. Otherwise, the m detector cable is necessary.

8 Installation Example Immersion type (or Drop-in type) Obstacle (above) Pole stand Immersion or Drop-in type detector mounting bracket Transmitter 4 cable ports G/ (with a grounding cable) cable (standard length 5 m) Cables for power, transmission, grounding, and range signals t least the overall detector length is required Immersion type detector Water surface 3 4 Immersion type Drop-in type detector 3 or deeper Drop-in type Minimum depth below liquid surface X=minimum size: or at least the overall detector length Installation example Y=minimum size: or at least the overall detector length Water surface Flow direction eration baffle inlet ir baffle attached to the tip of the detector Flow direction ir baffle attached to the protective tube Direction of mounted aeration baffle (standard with the SSD-6) Water surface eration baffle inlet Installation example Pipe insertion type Range of detector installation angle T L Vertical all valve (optional) tip size Horizontal Open/close mounting screw Sample water inlet for manual analysis Pressure gauge with R/4 plug (optional) Feed handle Direction of feed handle rotation when inserting the detector Direction of feed handle rotation when removing the detector International Operations: DKK-TO Corporation 9-, -Chome, Takadanobaba, Shinjuku-ku, Tokyo Japan Tel : Fax : Information and specifications are for a typical system and are subject to change without nofice. Issued on 8//3