General Specifications

Transcription

1 General Specifications DO0G Sensor for Dissolved Oxygen Analyzer GS 2J05D0-0E GENERA The DO0G sensor for dissolved oxygen is designed for use in water treatment plants such as sewage treatment works, effluent activated sludge process, and potable water treatment. It is also effective in river monitoring, intake protection, fish farming and other fields where water quality is important. This galvanic cell has a fast response time and good long term stability, and features replaceable diaphragm and cable for easy maintenance. A temperature sensor is incorporated for compensation. The DO0G sensor can be used in either the PB50G/PB60G floating ball holders or in the DOX8HS submersion type holder. DO0G Sensor FEATURES DO Sensor with ong-term Stability and Short Electrolyte Stabilization Time A DO sensor that uses a special electrolyte, shortening the electrolyte stabilization time and realizing stable measurements over a long period of time. Measuring range of 0 to 20 mg/l A membrane that is easily replaceable by anyone because of the cartridge type A membrane 50 mm thick that is hard to tear and has reduced influence from air bubbles PB50G Floating ball holder SYSTEM Refer to GS 2J5D2-E for dissolved oxygen converter DO402G, GS 2J05C0-0E for 2-wire transmitter DO202, GS 2A0A02-0E for 2-wire liquid analyzer FXA2 and GS 2J05C02-00E for holders DO Sensor DO0G Holder, Holder with Cleaner Guide pipe PH8HG Floating ball holder PB50G PB60G DO Converter DO402G, DO202 or FXA2 Select pin terminal of DO0G sensor for DO402G, DO202. Submersion type holder DOX8HS Accessories Without cleaner Jet cleaner Terminal Box WTB0-DO, -DO4 DOX8A Suspension holder HH50G CAUTION Installation ocation of Holders (Guide Pipe, Submersion Type, etc) The holder should be used in a place that is as vibration free as possible. Using the holder in a place where it is affected by vibration, may result in damage to the holder. Yokogawa Electric Corporation 2-9-2, Nakacho, Musashino-shi, Tokyo, Japan Tel.: Fax.: GS 2J05D0-0E Copyright May (YK) rd Edition: Oct. 200 (YK)

2 2 GENERA SPECIFICATIONS DO0G SENSOR Dissolved Oxygen: 0 to 20 mg/l (ppm) iquid Temperature: 0 to 40 C iquid Pressure: 0 to 00 kpa Flow speed: 20 cm/s or more Sensor for Temperature Compensation: Pt000 Wetted Part Material: rigid polyvinyl chloride, stainless steel, fluorinated ethylenepropylene, nitrile rubber, heat-resistant soft polyvinyl chloride, and polycarbonate Cable ength: m, 5 m, 0 m, 5 m and 20 m Weight: Approx. 0. kg N kg N: cable length (ex. for cable length of 5 m, approx. 0.9 kg) GENERA SPECIFICATIONS OTH- ERS WTB0 Terminal Box Used when DO converter is installed at a distance from the DO sensor. Ambient temperature: 0 to 50 C Construction: JIS waterproof Case material: Fiberglass reinforced polycarbonate resin Electrical connections DO sensor side: JIS A8 watertight plastic gland DO converter side: JIS A5 watertight plastic gland with cable (max. 40 m) Conduit adaptor (optional) available Case color: Grayish green (Munsell 2.5GY5.0/.0) Weight: Body 0.5 kg Mounting hardware: 0.7 kg DOX8A Parts Set for Maintenance A set of zero-adjusting reagent and maintenance parts <Contents> Zero adjusting reagent (sodium sulphite 500 g). bottle Membrane assembly (for membrane thickness of 50 mm)... sets Electrolyte for sensor (50 ml)... bottle Syringe for replacing electrolyte... Polish for silver electrode (0 g)... bottle Polyethylene beaker (200 ml)... DOX8W Calibration Set (optional) This is necessary if the span calibration is to be done using a saturated dissolved oxygen solution. It is not necessary for air calibration. <Contents> Air pump, stirrer, stirring element, bubbler, clamp, beaker, and thermometer. Note: The calibration set can be used in common regardless of the type of holder. CHARACTERISTICS Repeatability: 0. mg/l or % FS, whichever is greater (including sensor) Temperature Compensation Error: Within ±% FS (including sensor) for a ±5 C change in the range of 0 to 40 C Response Time: Within 2 minutes (90% response) (including sensor) MODE AND SUFFIX CODES. DO Sensor Model DO0G Membrane thickness DO sensor -NN Always -NN Cable length Cable terminal Suffix PN -FK -F 50 µm Description m 5m 0m 5m 20m Pin terminal * Fork terminal M4 ring terminal *2 * Select pin terminal for DO402G, DO202, and FXA2. When terminal box is used, select WTB0-DO. *2 Used to connection to FXA2. When terminal box is used, select WTB0-DO4. 2. Terminal Box Model WTB0 Combinned system Specify cable length Suffix -DO -DO4 -NN Mounting hardware Conduit work adaptor /P /W /AWTB /ANSI Description Terminal box For DO402G, * DO202, and FXA2 For FXA2 *2 Always -NN No cable 5m 0m 20m 0m 40m Pipe mounting hardware Wall mounting hardware G /2 /2NPT * Used for pin terminals, and cable with pin terminals. *2 Used for M4 screw terminals, and cable with M4 ring terminals.. Accessories (parts set for maintenance) Model Suffix Description Parts set for maintenance DOX8A (for membrane thickness of 50 µm) -M Sensor For membrane replacing type sensor *B Style B 4. Caribration Set Model DOX8W *A 5. Spare Parts Suffix Part Name Part No. Membrane and electrolyte for sensor K 97HK Description Calibration set Remarks membrane assemblies (thickness of 50µm) 50 ml of electrolyte Zero adjusting reagent 9920BR Sodium sulfite 500g Polisher K 9088PE For polishing silver electrode 0g GS 2J05D0-0E rd Edition: Dec. 5,20-00

3 DIMENSIONS DO Sensor DO0G Dissolved-oxygen sensor with pin terminals Dissolved-oxygen sensor with fork terminals Unit: mm Pin terminals Approx. 80 Model and Suffix s DO0G - NN PN DO0G - NN PN DO0G - NN PN DO0G - NN PN DO0G - NN PN Weight (kg) Approx. 0.6 Approx. 0.8 Approx..4 Approx. 2.0 Approx. 2.6 Fork terminals ø6.5 Dissolved-oxygen sensor with ring terminals Model and Suffix s DO0G - NN FK DO0G - NN FK DO0G - NN FK DO0G - NN FK DO0G - NN FK Weight (kg) Approx. 0.6 Approx. 0.8 Approx..4 Approx. 2.0 Approx. 2.6 Ring terminals ø26 ø0 ø Terminal asign IE 5 RE T 2 T2 4 Shield 6 iquid earth Model and Suffix s DO0G - NN F DO0G - NN F DO0G - NN F DO0G - NN F DO0G - NN F Weight (kg) Approx. 0.6 Approx. 0.8 Approx..4 Approx. 2.0 Approx. 2.6 Terminal Box WTB0 Detailed drawing of cable gland for terminal box ± M5 screws, depth 9 (for mounting) Approx. 26 (a) Watertight plastic cable gland (St'd) 46 Converter cable (Extension cable) inlet (to be drilled for wiring) with cable gland (applicable cable o.d.: Φ9 to 2 mm) Sensor cable inlet (to be drilled for wiring) with cable gland (applicable cable o.d.: Φ5.5 to 7 mm) Approx Packing Retaining Claw Adapter for Conduit G/2 (/AWTG) /2NPT (/ANSI) ±0.2 Please use the watertight cable gland of the attachment. If metallic conduit is directly connected with the case, it becomes the factor of the measurement error. (b) Watertight plastic cable gland with conduit adaptor F6.ai GS 2J05D0-0E rd Edition: Oct. 8,200-00

4 4 Dedicated Extension Cable with WTB0 (Not supplied if suffix code -00 is selected) Unit: mm WTB0-DO4 WTB0-DO WTB0-DO WTB0-DO4 4 (S) (S) 5 (RE) (RE) (IE) 6 (SE) (T) 2 (T2) Approx. Φ9.5 Approx. Φ (IE) 6 (SE) (T) 2 (T2) Model and Suffix WTB0 - DO - NN - 05, WTB0 - DO4 - NN - 05 WTB0 - DO - NN - 0, WTB0 - DO4 - NN - 0 WTB0 - DO - NN - 20, WTB0 - DO4 - NN - 20 WTB0 - DO - NN - 0, WTB0 - DO4 - NN - 0 WTB0 - DO - NN - 40, WTB0 - DO4 - NN - 40 Pipe Mounting Bracket (al) ( : /P) (mm) Approx Approx Approx Approx Approx Weight : Approx. 20 g / m ± φ5.5 holes 4-M5 screws, depth 9 75 ±0.2 (254) U-bolt, washer, nut φ0 holes (65) 48 Nominal 50A (outer diameter φ60.5) pipe Weight: approximately 700 g Wall Mounting Bracket (al) ( : /W) ±0.2 4-φ5.5 holes 4-M5 screws, depth 9 75 ± (26) φ0 holes (65) Weight: approximately 00 g GS 2J05D0-0E rd Edition: Oct. 8,200-00

5 5 WIRING DIAGRAM EXAMPE Output signal (4 to 20mA DC or 0 to 20mA DC) Output signal (4 to 20mA DC or 0 to 20mA DC) Contact input (cleaning start command) WTB0 Terminal box *4 2 * DO0G DO sensor * * DO402G 6 ma 62 N G 65 ma 2 66 S 6 SCREEN 2 S SCREEN 7 Jumper IE S T 2 T2 4 Shield S4 5 RE 6 iquid earth * * C C Power supply Contact output S Contact output S2 High and low alarms or HOD Contact output S (cleaning, HOD or high and low alarms) Contact output S4/FAI (failure or high and low alarms) Grounding terminal (M4 screw) *2 Protective grounding (00Ω or less) Note : External wiring connection terminal size is for Ø2 pin. *: Always use a shielded cable with an OD of 6 to 2 mm. *2: Be sure to ground the DO converter case grounding terminal (grounding resistance of 00Ω or less). *: Always use a cable with an OD of 6 to 2 mm. *4: Terminal box is used only where DO converter is installed long distance from DO sensor. (ordinary not needed) *5: This cable is specified in the Basic for the WTB0. *6: iquid earth to detect membrane failure. This function is available when using PB50G/PB60G float type holder. Connect only when using this function. * * C C GS 2J05D0-0E rd Edition: Oct. 8,200-00

6 6 Inquiry Specifications Sheet for Dissolved Oxygen Analyzer For inquiries on the Yokogawa dissolved oxygen analyzer, please tick (ü) the appropriate box ( ) and write down the relevant information in the blanks.. General Name of your company: Name of person : Dept. or sect : (Phone No. ) Name of plant : Measuring point : Purpose of use : Indication Recording Alarm Control Power supply : V AC Hz DC 2. Measurement Conditions () iquid temperature : to, Normal [ C] (2) iquid pressure : to, Normal [kpa] () Flow speed : to, Normal [m/s] (4) Name of liquid to be measured : (5) Components of liquid to be measured : (6) Other conditions :. Installation environment () Ambient temperature: approx. [ C] (2) ocation : Outdoors Indoors () Other information : 4. Requirements () Measurement range : 0 to 20 mg/l (2) System component selection: Sensor Holder Converter Cleaning system Calibration set Parts set for maintenance Terminal Box () ength of sensor cable : m 5 m 0 m 5 m 20 m (4) Type of holder : Guide pipe Submersion Floating ball Suspension (5) Cleaning method : No cleaning Jet cleaning (6) Other requirements : Subject to change without notice. GS 2J05D0-0E rd Edition: Oct. 8,200-00