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Summary of Contents for JUMO tecLine ClO2
- Page 1 JUMO tecLine ClO2 / JUMO tecLine O3 Sensors for chlorine dioxide and ozone Type 202634/45, type 202634/46 type 202634/50, type 202634/51 B 202634.0 Operating manual 2012-07-13/00585740...
- Page 2 Screws coated with threadlocking paint must not be adjusted! The threadlocking paint must not be damaged. If it is, claims under the warranty will not be honored!
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Page 3: Table Of Contents
Contents Typographical conventions ............5 Warning signs ....................5 Note signs ....................5 General ..................6 Preface ......................6 Scope of application ..................6 Output signal ....................6 Device identification ..............7 Nameplate ....................7 Order details ....................7 Description ................8 Scope of delivery ..................8 Sensor for chlorine dioxide - type 202634/45 ..........8 Sensor for chlorine dioxide - type 202634/46 (resistant to chemicals and surfactants) ............8 Sensor for ozone - type 202634/50 .............8... - Page 4 Contents Maintenance ................27 Cleaning the electrode finger tip / replacing the membrane cap and electrolyte ....................27 Remove scale that has accumulated on the membrane cap ....28 Storage / transport ..................28 Consumables / accessories ...............29 Calibration ................30 General .......................30 Calibration with a indicator/control instrument ..........30 Eliminating errors and faults ..........
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Page 5: Typographical Conventions
1 Typographical conventions Warning signs Caution This sign is used when there may be danger to personnel if the instructions are ignored or not followed correctly! Attention This sign is used when there may be damage to equipment or data if the instructions are ignored or not followed correctly! Note signs Note... -
Page 6: General
The sensors can be connected directly to a suitable indicator and controller. The JUMO AQUIS 500 AS indicator/controller (type sheet 202568) and the JUMO dTRANS AS 02 indicator/controller (type sheet 202553) are especially suitable for combining with these sensors. They provide the voltage required for the power supply of the sensor and make for an easy way to calibrate the measuring system. -
Page 7: Device Identification
3 Device identification Nameplate JUMO GmbH & Co. KG JUMO tecLine ClO2 Fulda, Germany www.jumo.net Sensor for chlorine dioxide Type: 202634/45-20 Measuring range: 0.00 to 2.00 mg/l F No. 00000000 00 0 1226 0005 Serial No.: 01 01 0002 Note: The date of manufacture is encoded in the "F No."... -
Page 8: Description
4 Description Scope of delivery Two-wire sensor with membrane cap, electrolyte and special abrasive paper for cleaning the electrode finger. Sensor for chlorine dioxide - type 202634/45 This sensor features a membrane-covered, amperometric 2-electrode measuring system. The membrane of this sensor is made of hydrophobic, microporous PTFE material. -
Page 9: Sensor For Ozone - Type 202634/51
4 Description Sensor for ozone - type 202634/51 (resistant to chemicals and surfactants) This sensor measures ozone, for example electrolytically generated ozone ). This sturdy sensor can be used in all water qualities. Details 4.6.1 Types 202634/45 and 202634/50 (12) (11) (10) Pg screw connection... - Page 10 4 Description Attention: - This measurement is only possible in a suitable flow-through fitting (part no. 00392611). - The process medium must be similar in quality to drinking or swimming pool water. - The sample medium must not contain any surfactants (surface-active substances, for example those in cleaning agents, detergents and disinfectants).
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Page 11: Technical Data
Settling time Incident flow velocity approx. 15cm / s If the sensor is installed in a JUMO flow-through fitting 00392611, this is equivalent to a flow rate of about 30l / h. Measuring ranges 0 to 2.0 / 0 to 5 / 0 to 10mg / l (ppm) 0 to 0.5 / 0 to 2.0 / 0 to 5 / 0 to 10... - Page 12 0.02A Settling time Incident flow velocity approx. 15cm / s If the sensor is installed in a JUMO flow-through fitting 00392611, this is equivalent to a flow rate of about 30l / h. Measuring ranges (other ranges on 0 to 2.0mg / l (ppm)
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Page 13: Mounting
5 Mounting Notes Attention: - The measurement is only possible with a suitable flow-through fitting (for example a flow-through fitting for sensors according to type sheets 202630, 202631, 202634, 202636, part no. 00392611, see type sheet 202634). - The sensor should be operated unpressurized if possible with free discharge of the process medium. -
Page 14: Flow-Through Fitting (Part No. 00392611)
5 Mounting Flow-through fitting (part no. 00392611) 5.2.1 Mounting the fitting The flow-through fitting can be fastened to a wall with an optional support bracket (part no. 00455706) or fastened to an installation table. Sensor Support bracket (optional) Connection G1/4 for hose ø 8mm x 6mm Fitting Removable measuring vessel (inspection glass) - Page 15 5 Mounting 5.2.2 Sensor installation Overview (10) Sensor Inspection glass Union nut Inlet G1/4A or DN10 Flow-through fitting Stepped collar 1" Outlet G1/4A or DN10 Compression ring O-ring (10) O-ring Part of the fitting. Installation Caution: When assembling and installing the sensor (1) make certain the O- rings and threads are clean and fully operational! The transparent inspection glass (6) can be unscrewed from the fitting housing for maintenance purposes.
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Page 16: Flow Monitoring
5 Mounting 2. After the sensor has been prepared in this manner, insert it into the flow- through fitting (3) and fasten it in place with the union nut (2). Flow monitoring 5.3.1 Minimum inflow For proper operation, the incident flow of the process medium on the sensor must be at least 15 cm/s. -
Page 17: Electrical Connection
6 Electrical connection Sensor for chlorine dioxide or ozone 6.1.1 General - Cable diameter approx. 4 mm - Wire cross section 2 x 0.25mm > - Lay signal lines isolated from cables with voltages of 60 V - Use a shielded cable with twisted wires - Keep clear of large electrical installations 6.1.2 Terminal assignment Connection... -
Page 18: Flow Monitor
6 Electrical connection Flow monitor 6.2.1 Function The contact (3+4) is opened starting at a flow velocity of 15 cm/s. Stecker 4polig signal... -
Page 19: Example Of A Measurement Section
4 to 20 mA signal. 6.3.2 Indicator/controller The signal can be further processed with the JUMO AQUIS 500 AS (1) or the JUMO dTRANS AS 02. The device provides the required supply voltage and makes for an easy way to calibrate the measuring system. The sensor can also be connected to other indicator, controller, recorder or PLC systems, however, provided the power supply and calibration allow it. - Page 20 6.3.4 Flow monitor If the flow monitor (3) indicates too small a flow from the sensor (2), the binary input of the JUMO AQUIS 500 AS (1) switches, the instrument goes to "Hold" and an alarm is generated. JUMO AQUIS 500 AS, type 202568/20-888-888-888-310-310-23/000,...
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Page 21: Startup
7 Startup Screwing the membrane cap off and on Caution: The electrolyte may spray out of the valve opening (5) when the membrane cap is screwed on! Wear safety goggles! Wash off sprayed liquid (aqueous solution of an alkali halide) under flowing water. - Page 22 7 Startup 1. Use a small screwdriver or similar tool to raise the transparent cover (6) of the valve opening (5) close to the valve opening and push it somewhat to the side. The valve opening (5) is now open. 2.
- Page 23 7 Startup Attention: Always wait before screwing the membrane cap onto the sensor until just before it is installed in a fitting! The sensor is very sensitive when it is completely assembled! When it is in a condition ready for measuring (membrane cap screwed on completely), the sensor must not be pushed open with the membrane (8).
- Page 24 7 Startup 7.2.2 For types 202634/46 and /51 This ensures that a layer of air The membrane cap comes in a can filled with water. cannot form on the inside of membrane. 1. Open the can with the membrane cap, drain the water and remove the membrane cap.
- Page 25 7 Startup enclosed Remove the black protective tube from the electrode finger (3). The special abrasive paper is only used to clean the tip (4) of the dry electrode finger (=measurement electrode). To do this hold the soft support with the special abrasive paper and move the electrode tip (4) of the sensor over the abrasive paper with the sensor at a slight angle.
- Page 26 7 Startup Attention: Always wait before screwing the membrane cap onto the sensor until just before it is installed in a fitting! The sensor is very sensitive when it is completely assembled! When it is in a condition ready for measuring (membrane cap screwed on completely), the sensor must not be pushed open with the membrane (8).
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Page 27: Maintenance
8 Maintenance Cleaning the electrode finger tip / replacing the membrane cap and electrolyte Attention: Do not rub the brown coating on the combined counter electrode and reference electrode (3) with special abrasive paper! Do not touch the electrode finger (3/4) or get it dirty! The steps must be performed exactly as they are described below! 1. -
Page 28: Remove Scale That Has Accumulated On The Membrane Cap
8 Maintenance 6. Screw the membrane cap onto the sensor shaft, See section 7.1 "Screwing the membrane cap off and on", page 21. Note: The service life of the electrolyte is 3 to 6 months. The service life of the membrane depends very much on the water quality. -
Page 29: Consumables / Accessories
Spare parts set for 202634/51 (1x membrane cap, fine abrasive paper) 00441309 Matching indicator/controller: JUMO AQUIS 500 AS, 00528718 Type: 202568/20-888-888-888-310-310-23/000 (for other versions see type and price sheet 202568) Matching transmitter / controller: JUMO dTRANS AS 02, 00550842 Type: 202553/01-8-01-4-0-00-23/000 (for other versions see type and price sheet 202553) -
Page 30: Calibration
9 Calibration General Depending on requirements, the sensor should be checked and calibrated on a regular basis at set time intervals. Recommendation: weekly or more frequently depending on accuracy requirements. Note: The process for verification and calibration is as follows: 1. - Page 31 9 Calibration Check the saved slope Many transmitters/controllers (for example JUMO AQUIS 500 AS) have a "calibration log". Relevant data from each calibration is saved in the log. Attention: If the value for the slope falls below 40%, the membrane cap and electrolyte must be replaced and the electrode tip must be cleaned, See section 8.1...
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Page 32: Eliminating Errors And Faults
10 Eliminating errors and faults Error/fault Possible cause Remedy Preventive measures (1) Sensor output Incorrect calibration. Repeat calibration If necessary calibrate signal too high or too using the DPD method the sensor more low. See "Initial condition", frequently. page 30. (2) Sensor output Settling time too short. - Page 33 10 Eliminating errors and faults Error/fault Possible cause Remedy Preventive measures (5) The DPD and Incorrect control Optimize the control sensor values match parameters. parameters. and the trend of the The amount of Reduce the amount redox measurement is disinfectant dosed per added per unit of time.
- Page 36 JUMO GmbH & Co. KG JUMO Instrument Co. Ltd. JUMO Process Control, Inc. Street address: JUMO House 8 Technology Boulevard Moritz-Juchheim-Straße 1 Temple Bank, Riverway Canastota, NY 13032, USA 36039 Fulda, Germany Harlow - Essex CM20 2DY, UK Phone: 315-697-...
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