Walchem WDIS Series, Instruction Manual

Page 1: ...s Disinfection Controller Instruction Manual Walchem Corporation Five Boynton Road Hopping Brook Park Holliston MA 01746 USA TEL 508 429 1110 FAX 508 429 7433 WEB www walchem com W A L C H E M WDIS Co...

Page 2: ...ics and 12 months for mechanical 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 accorda...

Page 3: ...4 3 Keypad 13 4 4 Access Code 13 4 5 Startup 13 Initial Startup 13 Normal Startup 14 4 6 Shutdown 14 5 0 Operation 14 5 1 Main Menu 14 5 2 Sensor Menu 16 Cal d 16 Calibration 16 Zero Calibration 16 D...

Page 4: ...Replacing the Fuses 29 7 0 Troubleshooting 29 7 1 Error Messages 29 Calibration Time 29 Cal Failed 29 Sens Low No Cal 29 Probe Error No Cal 29 Bad Zero Cal Fail 30 Output Timeout 30 High Alarm 30 Low...

Page 5: ...0 10 mg l 0 1000 mg l 0 10 mg l 0 10 mg l Resolution 0 01 mg l 1 mg l 0 01 mg l 0 01 mg l Cross Sensitivity Free Chlorine 5 Ozone Free Chlorine 5 Bromine Ozone Iodine ClO2 Di Trichloramine or Bromamin...

Page 6: ...600 max resistive load Resolution 001 of span Accuracy 1 of reading Sensor Power 5 VDC 5 mA supplied by controller Agency Approvals UL ANSI UL 61010 1 2004 2nd Edition CAN CSA C22 2 No 61010 1 2004 2n...

Page 7: ...ensor CAUTION Wear gloves and safety glasses during assembly of the sensor since the electrolyte is a STRONG ACID It is recommended to perform this operation over a sink with running water available A...

Page 8: ...or sensor removal Install the sensor vertically with the measuring surface pointing down at least 5 degrees above horizontal Refer to Installation drawings Flow rate regulation must be done upstream f...

Page 9: ...ply ISO 3864 No B 3 6 Caution risk of electric shock ISO 3864 No B 3 1 Caution Nut P N 102586 Body P N 191279 R O Ring P N 102594 Sensor P N 191280 WCDB 191300 WFCB 191320 WOZB 191338 WPAB Clip Ring P...

Page 10: ...6 ISOLATION VALVE NORMALLY OPEN 1 2 3 4 5 6 7 8 9 10 1 4 NPT ROTAMETER 30 100 LPH RECIRCULATION PUMP FROM PROCESS 20 FT 6M 3 4 NPT TO PROCESS Figure 1 Typical Installation...

Page 11: ...7 Typical Installation Using Walchem Manifold Sample Valve Flow Control Valve Water In Water Out To Open Atmosphere Rotameter Flow Cell Flow Switch Sensor...

Page 12: ...inated at the controller ground stud see figure 4 CAUTION 1 There are live circuits inside the controller even when the power switch on the front panel is in the OFF position The front panel must neve...

Page 13: ...uts Optional Input 4 20 mA optional Side View Bottom View Optional Input Sensor Input WDIS Prewired Option Bottom View 4 20 mA Output Optional Optional Sensor optional Input Input Input Strain Reliefs...

Page 14: ...NEUTRAL HOT F2 TB3 TB2 F1 Grounding Stud INPUTS _ 4 20mA Optional 4 20 mA Board COM PH FLOW SWITCH FM To Grounding Stud 5 WFCB WCDB WOZB WPAB FRONT PANEL POWER SUPPLY WHT RED BLACK Figure 3 Wiring to...

Page 15: ...11 Figure 4 WDIS310 Output Wiring Note The Alarm relay is non programmable Refer to the Main Menu diagram on page 14 for the list of error conditions that trigger the alarm relay...

Page 16: ...ar graph grows from the left hand side and the point furthest to the right indicates where the process value is relative to the set points The bottom line of the summary screen displays the following...

Page 17: ...for operation With the access code enabled any user can view parameter settings but not change them Note that this provides protection only against casual tampering Use a lock on the cover latch if yo...

Page 18: ...menu structure is grouped by inputs and outputs Each input has its own setup menu for calibration and unit of measure selection as needed Each output has its own setup menu including set points timer...

Page 19: ...alarm relay is activated Cl2 1 00ppm Ctrl 2 A 11 40 Cl2 1 00ppm Aux 1 A OFF Cl2 1 00ppm Time Thu 9 12 Cl2 1 00ppm 4 20 mA 15 66 mA Cl2 1 00ppm Aux 2 A OFF Main Menu Press Enter key to enter menu or su...

Page 20: ...l read Cal Failed A failure usually means that the sensor needs to be cleaned or replaced Zero Calibration This menu is used to calibrate the sensor to read precisely zero in pure water It should be s...

Page 21: ...hat appear when Buffer Recognition is selected Press Enter key to enter menu Press Exit key to exit menu Blinking fields may be edited with the adjust arrows Press Enter when modification is complete...

Page 22: ...may display the following messages Off Intrlck Timeout or a time Off indicates that the output is off Intrlck indicates that a signal from a flow switch or level switch is stopping control and has di...

Page 23: ...izer or as a low alarm A high set point will turn on the relay when the process value goes over the set point value to add a reducing agent or as a high alarm HOA Use the Left and Right arrows to move...

Page 24: ...le status screens Press Enter key to enter menu Press Exit key to exit menu Blinking fields may be edited with the adjust arrows Press Enter when modification is complete to return to Main Menu Level...

Page 25: ...f the process value goes above a certain value Out Range Alarm Press ENTER if you want the Aux relay to close if the process value goes either above or below certain values In Range Output Press ENTER...

Page 26: ...13 00 Press EXIT to go back to the Aux 1 menu level Hold Time Only appears if the probe wash mode has been selected Use the arrow keys to select the time delay in seconds between the probe wash endin...

Page 27: ...Mode In Range Output Auxiliary 1 and 2 Menu ENTER EXIT ENTER EXIT ENTER EXIT Legend NEXT PREV Set Points appear as needed depending on output mode i e the Low Alarm Point does not appear if Hi Alarm...

Page 28: ...calibration This feature allows other devices to be calibrated at the 4 and 20 mA points Press ENTER to start the calibration Fixed 4 mA Out The controller will output 4 00 mA Adjust the chart recorde...

Page 29: ...set the clock Use the arrow keys to change the year date and month then press ENTER Use the arrow keys again to set the day of the week and the time Use military time for example 1 00 PM is 13 00 Pres...

Page 30: ...eens are Access Code REQ Access Code OK and Access Code DIS The first indicates that the access code is required to alter settings The second indicates that the access code is required and has been en...

Page 31: ...Value 1234 Access Code REQ Access Code OK Access Code Menu Possible status screens The Access Code prompt may appear at any screen in the entire menu structure if the current access code has not been...

Page 32: ...Membrane CAUTION Wear gloves and safety glasses during assembly of the sensor since the electrolyte is a STRONG ACID It is recommended to perform this operation over a sink with running water availab...

Page 33: ...unnecessary further damage Contact the factory 7 1 Error Messages Calibration Time This message appears to prompt you to perform the routine maintenance of cleaning and calibrating the sensor It does...

Page 34: ...Possible Causes Corrective Action 1 The process went further out of control than normal May have to increase chemical flow rate 2 The chemical supply has run out Replenish the chemical supply 3 The p...

Page 35: ...Causes Corrective Action 1 Flow has stopped level too low May be a normal condition if not restore flow or level 2 Flow level switch disconnected Reconnect 3 Flow level switch faulty Verify that switc...