Dissolved Oxygen Transmitter (For Low-Concentration Measurement) OBM-165H

Transcription

1 Dissolved Oxygen Transmitter (For Low-Concentration Measurement) OM-65H The OM-65H is a -wire type (4VDC power supply) dissolved oxygen transmitter (for Low-Concentration Measurement) housed in a robust, die-cast aluminum enclosure suitable for installation out in the field. This model is equipped with a wide range of useful features, such as HRT communication. Features HRT communication (version 7) supports the transmission of digital data such as DO measured value, temperature measured value, and equipment status commands. CE mark compliant. Freely adjustable transmission output range. When maintenance mode is enabled, the ST-Y indication is on. In maintenance mode, the output signal is held at the value which was set before the mode was enabled. The instrument can also be configured to automatically return to measurement mode. This feature is especially useful when the instrument is inadvertently left in maintenance mode. The instrument is equipped with a burn-out function. When the self-diagnostics function detects an error in the measurement system, such as a computer error or the failure of the temperature compensation resistor, the burn-out function provides notification of the problem by causing the transmission output to go offscale (upper or lower limit). The instrument automatically judges the quality of electrode characteristics during calibration, and provides diagnostic information in the form of error messages. System configuration Electrode lead ELW-3 ~m Transmitter OM-65H Site Instrument room Detector OC-64 Extension cable EC- (max.m) Junction box FC-4 Sample water IN/OUT The junction box and extension cable are used when the length of the electrode lead ELW-3 (~m) is insufficient. Power/transmission output line (4~mDC) HRT communicator Distributor DC power Receiver Indicator Recorder Controller DCS, etc.

2 Standard Specifications Product Name Measurement range Performance (excluding detector) Temperature compensation Indication Operating power and power consumption : Dissolved oxygen transmitter : OM-65H : Dissolved oxygen;.~µg/l (Minimum indication;.µg/l) O;.~3.% (Minimum indication;.%) ST;.~.% (Minimum indication;.%) Temperature; -.~. C (Minimum indication;. C) (Transmission output signal is provided for DO only.) : DO linearity; Within ±%FS (~5µg/L range or less; within ±µg/l) (by equivalent input) (~µg/l range or less; within ±.5µg/L) (by equivalent input) DO repeatability; Within ±.8%FS (~5µg/L range or less; within ±.8µg/L) (by equivalent input) (~µg/l range or less; within ±.4µg/L) (by equivalent input) : Compensation range; ~45 C Compensation accuracy; Within ±3%FS (equal input) : LCD (4 digit display*) : -wire system, 4VDC, (8~3VDC with load resistance *),.6V or less Transmission output range Transmission output Control operation mbient conditions Construction Dimensions Weight Case materials and surface finish Cable entry vailable detectors : Dissolved oxygen; The upper limit range can be adjusted in µg/l increments within a range of ~µg/l. : 4~mDC, isolated. Max. load resistance; 5Ω : Microcomputer : -~55 C, 95%RH or less (During transport; -3~65 C, 98%RH or less) : IP65 (NEM4X compliant) : 8 (W)x95 (D)x8 (H) mm : 5 pipe (Option: wall or rack mount) : pprox. kg : luminum die-cast, metallic silver (Display keypad on the operation panel; Polyester resin, Munsel N.5) : Cable gland forµ6~ cable, 3 ports G/ conduit threads can be connected when the cable gland is removed. : OC-64(OC-64), and other models *: The number of digits displayed for DO measurements varies by measurement range. For ranges of.~.µg/l and.~.µg/l, only decimal place is displayed. For ranges of ~µg/l and.~µg/l, no decimal place is displayed. *: Note that HRT communication requires a minimum load resistance of 5Ω and a supply voltage of 8VDC or more. pplicable Standards Product safety EN/IEC6- CE mark EN/IEC636-* (Measure variations during testing (when used with the EMC electrode): ±%FS or less) * This product is designed to conduct high sensitivity, low concentration measurements. It satisfies the EMC requirements specified in the "Immunity test requirements for equipment intended for use in a controlled electromagnetic environment". Thus, this instrument is best suited for use in a controlled environment, such as a location in which the use of mobile phones and other radio frequency transmitters within the vicinity of the equipment is restricted. Wiring diagrams Electrode lead ELW-3 DO electrode 756L E Transmitter OM-65H E Power/transmission output line (4~mDC) Receiver (5 or less) DC power supply DC 4V

3 External terminals Connection terminals for electrode lead ELW-3 or extension cable EC- E E C N P Connection terminals for power and transmission output cable Grounding terminal E Dimensions Unit : mm Mounted on a 5 pipe Hood (optional) Mounted on a wall or rack () Hood (optional) Display Operation keys 8 (35) Display Operation keys (35) Cable entries 5 pipe Cable entries 4-ø5.8 4 () Grounding terminal Grounding terminal Display panel

4 Product code OM65H-- C D Y Custom spec. code; Numeric digit: 9 lphabet: Z *. Specify the measurement output range in µg/l steps at a minimum width of µg/l, within a range of ~µg/l. Ex..~.µg/L *. The 4 types of standard electrodes that can be used together with the unit are as follows: 756L: For use with boiler water at thermal power plants. Wetted part materials; PP/FEP 756L: For use at nuclear power plants. Wetted part materials; SUS36/FEP 7563L: For use with ultrapure water at semiconductor plants. Wetted part materials; PP/FEP 7564L: For use with ultrapure water at semiconductor plants. Wetted part materials; SUS36/FEP *3. Standard coating: Melamine primer and topcoat. verage film thickness: Greater than 3µm. Glossiness: G4. High performance coating: Epoxy primer and middle coat, polyurethane resin topcoat. verage film thickness: Greater than µm. Glossiness: G8. *4. ceramic surge arrester (simplified) can be mounted on the power and transmission line. *5. There are three cable entries with cable glands for ø6~ cable (G/ conduit threads when the cable gland is removed). The NPT/ is supplied with 3 SUS36 adapters. fter removing the cable glands, screw the required number of adapters into the cable entries. The standard cable glands should be left in the cable entries that are not used in order to seal them shut. Note.The OM-65H is a -wire type dissolved oxygen transmitter that supports HRT communication (version 7). It has a measurement range of ~µg/l. The instrument comes with a number of other features, such as temperature (-.~. C), self-diagnostics, burnout, and DO value adjustment. Note that the external input terminal used to receive output hold commands from the cleaner used with this instrument is not available as an option. Note.The dedicated detector is the micro flow type OC-64 (OC-64). Separately order the detector together with the ELW-3 electrode lead. Option Hood Recommended for installation outdoors at a location exposed to direct sunlight Material Code Number : SUS34 : Mounted on 5 pipe : 74993K

5 + - Related equipment Junction box When the transmitter and electrode are installed away from each other and the standard electrode lead length (5m) is too short. Construction Weight Case Material Finish : FC-4 : Outdoor installation : pprox..9kg : S resin : S resin : Pearskin finish chromium plating : 5 ~ 5 pipe, wall or panel mount Cable port (G/) ø ± 7 ± 9 5 ± Maintenance clearance 7 ± 9 ± 3 4-M8 bolt, ømm hole Electrode lead port (G/) 73 4 ± 5~5 Pipe Extension cable The extension cable is a special cable specifically manufactured for a DO analyzer. It connects the transmitter and junction box. Outside diameter Insulation : EC- :ø8 : Polyethylene and vinyl : Vinyl : 5 MΩ or greater/m Sheath Insulation resistance between core conductors Maximum cable length : m, no cable splicing Standard length : 5m ~ m (5m unit step) Weight : pprox..5kg/5m 4 Filler (staple fiber) Conductor Paper tape Insulation Primary braiding material 3 Inner layer (inner sheath) Secondary braiding material Sheath Cross section of EC- power supply unit (4VDC) for the -wire type transmitter. Power supply unit :P-4 Output voltage rating : 4VDC+3/-V Output current rating : ~m (Parallel connection between two instruments cannot be made.) Power requirements : VC±%, 5/6Hz mbient conditions : -5~55ºC Construction : Indoor installation, plug-in type Weight : pprox. 3g *Output transmission signal of 4~mDC can be drawn from the terminal block. Nominal tolerance ±5mm ar graph meter relay with DC power source 4V output (6+, 5-) Power source (7, 8) C V 5/6Hz 4 Nominal tolerance ±5 mm Transmission output (3-, 4+) -ø4.5 mm (mounting hole) Grounding terminal () Output voltage Input larm outputs : MR-4 : 4VDC±V : 4~mDC (input resistance; Ω) : High-high, high, low, low-low, 4 contacts (Contact rating; 5VC,.5) : Custom specifications : mm : Red LED, dots : 85V~64VC, 5/6Hz, pprox. 5V : pprox. 5V Scale Scale length Display Power requirements Power consumption mbient conditions : ~45ºC, 4~8%RH Weight : pprox. 45g Name plate (top, bottom) Scale length Escutcheon (left,right) ph Panel cut-out

6 Combined Detector OC-64 / OC-64 Suitable for measurement of boiler water in power plants and pure water in semiconductor plants. Trace sample water consumption Combined electrodes: 756L/756L, electrode lead ELW-3 OC-64 OC-64 Sample conditions : Temperature ~45 C Flow rate Constant flow rate within ~3 ml/min Pressure Inlet pressure;.5 MPa or less Outlet pressure; Open to atmospheric pressure Inlet : Rc/4 (oth sample inlet and outlet) (OC-64) Connction port; ø6mm tube union (OC-64) mbient temperature : ~ 4 C, Max.9% RH and humidity Dimension External dimensions Materials Construction Surface color : pprox. 4 kg (OC-64), pprox..4 kg (OC-64) : (W)x 4 (H)x 8 (D) mm (OC-64) 8 (W)x (H)x 7 (D) mm (OC-64) : Wall mount, or 5 pipe mount : Case PVC coated SPCC Measurement cell Heat-resistant PVC Tubing Nylon : Rain proof type (JIS C 9) : Metallic silver and blue * The OC-64 is housed in a conveniently-sized case, making it ideal for installation in a boiler water sampling system. Flow sheet Dimensions Unit : mm Electrode lead Mouting holes 4-ø6 (rear saide) Flow meter Flow rate ~ml/min. ( option) Transmitter DO electrode Measurement cell Sample water inlet Sample water outlet Flow regulating valve (option) Sample water inlet (Rc/4) 5 5 Sample water outlet (Rc/4) Grounding terminal (M4) Drain Electrode lead outlet

7 Product code OC64-- Custom spec. code; Numeric digit: 9 lphabet: Z Main material of wetted part * Measurement cell: Heat-resistant PVC Piping: Nylon tube (standard) ll SUS36 Sample flow water* Not provided Provided ( ml/min FS) when wetted part is made of standard resin Provided (L/min FS) when the wetted part is made of SUS Sample flow control valve*3 Not provided Provided (SUS36) Structure of case Simplified spray-proof (standard) Splash-proof, dust-proof (equivalent to IP54)*4 Wall or rack mount Pole-mount (with 5 pole saddle) Markings Japanese (Standard) English *. Standard (heat-resistant PVC and nylon tube) is for boiler water. Select "ll SUS36" for ultra pure/ultra low concentration water for semi-conductor plant, etc. *. small flow meter is installed at the measurement cell outlet in the case. When the wetted part material is resin for boiler water measurement, etc., select ml/min FS (set at ml/min). *3. Stainless needle valve is installed at the sample inlet the lower surface of the case. So, when the sample flow control valve is "Provided", the sample inlet becomes "IN" side (Rc /4) of the needle valve. *4. rubber gasket is used to seal the door of the case. stainless draw latch (for opening and closing) is mounted on the door. Note.The OC-64 is a detector which is ideal for use in conducting low concentration DO measurements, such as measurements of boiler water at power plants and ultrapure water at semiconductor plants. Sample water: Temperature; ~45 C Flow rate (consumption volume); Constant within a range of 3 ml/min Pressure; 5 kpa or less. Output side open to the atmosphere. Sample inlet/outlet: Rc/4 for both inlet and outlet Electrode lead port: Waterproof connection for ø8 cable Note.The 4 types of standard electrodes that can be used together with the unit are as follows. 756L: For use with boiler water at thermal power plants. Wetted part materials; PP/FEP 756L: For use at nuclear power plants. Wetted part materials; SUS36/FEP 7563L: For use with ultrapure water at semiconductor plants. Wetted part materials; PP/FEP 7564L: For use with ultrapure water at semiconductor plants. Wetted part materials; SUS36/FEP Separately order the detector together with the ELW-3 electrode lead. Low-Concentration Dissolved Oxygen Electrodes 756L / 756L Polarographic-membrane type dissolved oxygen electrode for low-concentration DO measurements. Use of dual cathode structure for low-to-high concentration measurements allows for quicker response. Not susceptible to interference gases, such as dissolved hydrogen and dissolved carbon dioxide for low-concentration measurements. Use of cartridge-type diaphragm allows for easier maintenance (easier replacement of inner solution). Environment-conscious design. Polarographic membrane type eliminates the use of lead within the internal electrode, as well as the use of strong acidic and alkaline reagents. Measurement method Operational temperature range Operational pressure range Measurement range Minimum limit of detection Output Response time Flow Repeatability : Polarographic-diaphragm type : ~45 C :.5MPa or less : µg/l~mg/l :.µg/l : pprox. 9µ(at saturation in atmosphere) : Within 5 seconds (9% response from atmosphere to zero liquid at 5 C) : ~3mL/min. (OC-64 embedded flow cell used) : Within ± % F.S. 756L 576L

8 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 6//