Walchem WDSW100, Instruction Manual

Page 1: ...Five Boynton Road Hopping Brook Park Holliston MA 01746 USA TEL 508 429 1110 WEB www walchem com Disinfection Sensors Instruction Manual...

Page 2: ...chanical parts and electrodes from date of delivery from the factory or authorized distributor under normal use and service and otherwise when such equipment is used in accordance with instructions fu...

Page 3: ...ions 8 3 0 Operation 13 Conditioning 13 Calibration 13 4 0 Troubleshooting 15 The disinfectant reading is much lower than the manual analysis 15 The disinfectant reading is much higher than the manual...

Page 4: ...embrane cap a 100 ml bottle of electrolyte fill solution and special abrasive paper Make sure that all parts are included The oxidizer molecules diffuse through the membrane and in the acidic environm...

Page 5: ...he rubber band from the groove in the membrane cap just until the vent hole underneath is exposed then fill the membrane cap to the top with the electrolyte fill solution Never shake the electrolyte b...

Page 6: ...peat several times at different angles Never touch or clean the brown electrode shaft 5 Holding the electrode shaft upright place it onto the filled membrane cap with the mounted G holder You may have...

Page 7: ...e that the bands are smooth and flush 5 Rinse your hands the sensor and all surfaces contaminated with electrolyte solution with running water Check the sensor for leaks especially at the membrane and...

Page 8: ...uld be installed in an area where there is good solution movement and where it will respond rapidly to chemical additions The placement of the sensor relative to the placement of chemical replenishmen...

Page 9: ...iew Disinfection Sensor Washer Set p n 103419 O Ring p n 103422 Nut p n 102586 Cable p n 191303 for WDIS400 WebMaster Cable p n 191655 for W100 W600 Membrane cap Clip Ring groove Clip ring O Ring p n...

Page 10: ...Typical Installation ISOLATION VALVE NORMALLY OPEN RECIRCULATION PUMP ROTAMETER 30 100 LPH PROCESS WATER SAMPLE RETURN 1 ATMOSPHERE MAXIMUM FLOW SWITCH SENSOR FLOW CELL FLOW CONTROL VALVE SAMPLE VALV...

Page 11: ...le The wiring to the controller is as follows Shield Drain Earth Ground GRN IN WHT IN RED 5 V BLK 5 V If the required cable length exceeds the 6 meters 20 feet that is supplied wire the housing to a 1...

Page 12: ...the instrument The maximum cable length is 30 5 meters 100 feet WDIS410 Power Supply 115 VAC or 230 VAC Contact Closure Polarity not critical Interlock Function 5V T T GROUND STUD L1 L2 N G R N 1 2 0...

Page 13: ...2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 TB1 TB4 TB6 TB5 TB7 N N N N N N R1 R2 R3 R4 R5 R6 POWER SWITCH...

Page 14: ...4 5 6 7 8 9 10 11 12 TB2 TB1 FUSE POWER SW ITCH POWER SWITCH 1 2 3 4 5 6 7 8 9 10 11 12 R1 R2 R3 N N N N L TB3 TB4 TB5 TB6 TB7 pH TB1 1 2 3 4 5 6 7 8 9 10 11 12 5V BLK IN WH T IN GRN SHIELD 5V RED SAF...

Page 15: ...12 W900...

Page 16: ...f the application 4 The stability of the sensor and controller as a system The frequency of calibration is really determined by experience At a new installation calibration might initially be checked...

Page 17: ...14...

Page 18: ...ions 5 When the reading is stable continue to the final steps of the calibration NOTE Disinfectant concentration can change rapidly in the sample Minimize the time between performing the DPD test or m...

Page 19: ...ring Check wiring Faulty sensor Replace sensor Faulty controller sensor input Go to the Sensor Input menu and perform a self test If this passes then the problem is with the sensor or its wiring If it...

Page 20: ...or the appropriate amount of time before attempting a calibration Insufficient sample flow Increase flow rate to between 30 and 100 liters per hour Air bubbles on membrane Dislodge bubbles Adjust flow...

Page 21: ...ctants on the standard free chlorine bromine sensor membrane as these will reduce the life of the membrane If the sensor still cannot be calibrated after cleaning replace the membrane cap as described...

Page 22: ...ubmerged in water For long term storage up to 3 years follow this procedure CAUTION Wear gloves and safety glasses during assembly of the sensor since the electrolyte is a STRONG ACID It is recommende...

Page 23: ...erating Pressure Sensor 0 to 3 atmosphere 0 to 44 psi Total Chlorine CP4 0 to 1 atmosphere 0 to 14 7 psi All other sensors Operating Pressure Optional flow switch 0 to 10 3 atmosphere 0 150 PSI see gr...

Page 24: ...30 to 100 liters hour 0 13 to 0 44 gal min pH Range 6 8 8 0 pH must be stable within 0 10 Conductivity Range Up to 4 NaCl Response time 30 sec Conditioning time 60 min Free Chlorine Bromine Extended p...

Page 25: ...l 0 01 mg l 0 200 mg l 0 167 5 mg l 0 100 mg l 0 1 mg l Sensitivity Free Chlorine 5 Ozone 2500 Sample Flow rate 30 to 100 liters hour 0 13 to 0 44 gal min pH Range 1 0 11 0 Conductivity Range No Limi...

Page 26: ...me 60 min Hydrogen Peroxide Range W100 W600 W900 Range WDIS Range WM1 WIND Resolution 0 200 mg l 0 167 5 mg l 0 100 mg l 0 1 mg l 0 2 000 mg l 0 1 675 mg l 0 1000 mg l 1 mg l 0 20 000 mg l 0 16 750 mg...

Page 27: ...SOR ClO2 2 PPM 4 20 mA 191648 103462 103475 SENSOR ClO2 5 PPM 4 20 mA 191650 103462 103475 SENSOR H2O2 200 PPM WP7 191537 103462 103761 SENSOR H2O2 2000 PPM WP7 191539 103462 103761 SENSOR H2O2 20000...

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