background image

32 

 

5.11  Access Code Menu 

This menu determines whether the access code feature of the controller is enabled or disabled and 
allows you to customize the access code to your own value. The access code controls whether or not 
you are allowed to change the parameters in the controller. With the access code disabled, any user may 
change any parameter. With the access code enabled, any user can view any parameter, but cannot 
change them. Once an attempt is made to change a parameter, the display will prompt the user to enter 
the access code. If the correct access code is entered, the parameters can be changed. If the wrong 
access code is entered the parameters cannot be changed. Once the access code has been correctly 
entered, it will remain valid until there is a period of 10 minutes without a key being pressed. The 
access code menu will appear as shown below: 
 
The access code menu will appear as shown below: 

Access Code 

DIS   

Indicates that the access code is disabled. No access code is required to change any setting. 

Access Code 

REQ 

Indicates that the access code is required to alter settings. 

Access Code 

OK 

Indicates that the access code is required and has been entered correctly. 

 

Enable  N  /  Y 

Press the Up or Down arrow key to change the N to Y and press ENTER to enable the access code 
feature. If the access code is enabled you must first enter the access code to disable it. 

New Value 

Press ENTER to display the current access code value and use the arrow keys to change it to any value 
between 0 and 9999. If the access code has been enabled, you will be prompted to enter the current 
access code before being allowed to change it. You must remember the access code if you enable it.  
 
The Factory default Access code is 1995. 
If you change the access code and can't remember it follow this procedure: 
1. Turn off power to the controller. 
2. Wait 10 seconds. 
3. Press and Hold the UP and DOWN arrow keys while turning on the power. 
4. Read the access code on the display. 
5. Release the keys, and the access code will disappear. 

 

 

 

 
 

Figure 18 Access Code Menu 

 

Содержание WCT400 Series

Страница 1: ...ing Tower Conductivity Controller Instruction Manual Five Boynton Road Hopping Brook Park Holliston MA 01746 USA TEL 508 429 1110 FAX 508 429 7433 WEB www walchem com WCT400 410 Controllers W A L C H...

Страница 2: ...months for electronics 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 equipmen...

Страница 3: ...Access Code 13 4 5 Startup 13 4 6 Shut Down 13 5 0 OPERATION 14 5 1 Main Menu 14 5 2 Conductivity Menu 16 5 3 Temperature Menu 18 5 4 Bleed Menu 19 5 5 Feed Menu 21 5 6 WM1 and WM2 Menus 24 5 7 Bio1...

Страница 4: ...e effect as soon as it is entered An access code is available to protect set point parameters while still allowing settings to be viewed The model WCT410 biocide outputs are scheduled on a user select...

Страница 5: ...al Internally powered Fully isolated 600 Ohm max resistive load Resolution 001 of span Accuracy 1 of reading Agency Approvals Safety UL 61010 1 2012 3rd Ed CSA C22 2 No 61010 1 2012 3rd Ed IEC 61010 1...

Страница 6: ...min 59 sec Time per Contact Mode D 1 second 59 min 59 sec Contacts by Mode D 1 contact 100 contacts Time Limit Mode D E 1 minute 99 min 59 sec Time Vol Mode E 1 second 59 min 59 sec Vol to Initiate Fe...

Страница 7: ...WCT series controller is mounted the metering pumps may be located at any distance from the controller The conductivity electrode should be placed as close to the controller as possible to a maximum...

Страница 8: ...RCULATING PUMP SOLENOID VALVE COOLING TOWER WATER METER Cooling Tower Controller www walchem com PREV NEXT ENTER EXIT FLOW FLOW FLOW SWITCH ELECTRODE SAMPLE VALVE 10 0 254 mm 1 4 POLYPRO PANEL 17 432...

Страница 9: ...TOWER SPRAY PUMP CITY WATER MAKEUP SHUTOFF VALVE A D A B F C E A Unions installed for replacement of solenoid strainer or probe B solenoid C Y strainer D PVC threaded tee probe supplied with controll...

Страница 10: ...X Y Z X VALVE X Y Z X OPTION B TO SANITARY SERVER PROBE NOTE LOCATION OF SOLENOID VALVE USING OPTION A OR OPTION B DEPENDS ON SYSTEM CONFIGURATION DETAIL OF PROBE ASSEMBLY TO CONTROLLER 1 PVC PIPE 1 N...

Страница 11: ...re power to the controller is REMOVED If your controller is prewired it is supplied with a 8 foot 18 AWG power cord with USA style plug A tool 1 Phillips driver is required to open the front panel 2 W...

Страница 12: ...Reed Switch Flow Meter Polarity not Critical IN FLOW MTR 1 FLOW MTR 2 IN IN FLOW SW 1 IN IN IN 5V BLK RED COND T T BLEED N C FEED N O N C N O L2 L2 L1 L2 N Hall Effect Flow Meter G R E E N W H I T E G...

Страница 13: ...D BLK 120V BRN 240V WHT 120V BLU 240V GRN 120V GRN YEL 240V IF MOTORIZED BALL VALVE BLK 120 BRN 240V W HT 120V BLU 240V G R N 1 2 0 V G R N Y E L 2 4 0 V Chart Recorder NOTE When connecting a motorize...

Страница 14: ...WHT 120V BLU 240V GRN 120V GRN YEL 240V GRN 120V GRN YEL 240V IF MOTORIZED BALL VALVE BLK 120V BRN 240V BLK 120V BRN 240V Chart Recorder BLK 120V BRN 240V WHT 120V BLU 240V WHT 120V BLU 240V WHT 120V...

Страница 15: ...ars at each 5 The bar graph is limited to displaying 20 above or below the set point When these limits are reached an L or H may appear at the end of the bar graph to indicate a low or high alarm The...

Страница 16: ...it see Section 5 11 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...

Страница 17: ...till controlling 5 1 Main Menu The exact configuration of your WCT controller determines which menus are available as you scroll through the settings Certain menus are only available on the WCT410 con...

Страница 18: ...ation 2000 S 67 F Bio 1 OFF 2000 S 67 F Bio 2 OFF 2000 S 67 F Time Sun 3 00 2000 S 67 F Cnd Alrm Lo Alrm 2000 S 67 F 4 20mA 4 0 mA 2000 S 67 F Access Code DIS Temp Error Sensor Error No Flow Bleed Tim...

Страница 19: ...are not automatically translated from S cm to ppm If you change the units you will need to change your Bleed settings ppm C F This is the ppm Conversion Factor or multiplier This is typically 0 666 b...

Страница 20: ...Cond 1000 S Duration 2 00 Cond Wait 23 50 Cond Samp 10 00 Cond Xtnd 10 00 Conductivity Menu Possible status screens Menu choices that appear when ppm units are selected Press Enter key to enter menu P...

Страница 21: ...p Use the arrow keys to adjust the temperature displayed to match that of the water Units You may choose to display temperature in C or F Press ENTER and the Up or Down Arrow keys to change the temper...

Страница 22: ...the bleed output turns OFF Assuming that the control direction is set for normal operation High Set Point the bleed output will turn off when the conductivity drops below the set point minus the Dead...

Страница 23: ...y to exit menu Blinking fields may be edited with the adjust arrows Press Enter when modification is complete to return to Bleed Menu Level ENTER EXIT ENTER EXIT Operation NEXT PREV Bleed 1 01 15 Time...

Страница 24: ...wave flow meters The Feed menu will be indicated on the display by one of the following The A indicates that the feed is being controlled automatically Feed A OFF Indicates that the Feed output is cur...

Страница 25: ...n be disabled Feed Based on Paddlewheel Mode Time Vol This setting determines the pump on time once a given volume of water has passed through the paddlewheel sensor The volume required to initiate fe...

Страница 26: ...ed Menu choices that appear when Feed as of Time mode is selected Menu choices that appear when Feed based on Water contactor input is selected Legend Feed Lockout 99 00 TIMEOUT Feed of Bleed 10 TIMEO...

Страница 27: ...sor sends out This value is usually printed on the sensor s flow cell or in its instructions Tot Units This is used to set the units of measure for the totalizer Press ENTER then use the up and down a...

Страница 28: ...rough the rest of the Biocide Add menu indicated below and in figures 13 and 14 This will make programming simple and logical A number of built in interlocks are part of the biocide feed program When...

Страница 29: ...igher than this set point the bleed output is turned on to lower the conductivity This setting is independent of the bleed set point in the Bleed Menu There are separate Bio 1 and Bio 2 Pre Bleed sett...

Страница 30: ...it key to exit menu Blinking fields may be edited with the adjust arrows Press Enter when modification is complete Use Next and Prev keys to change days in Prog Menu choices that appear when 2 Week Bi...

Страница 31: ...ing fields may be edited with the adjust arrows Press Enter when modification is complete Use Next and Prev keys to change days in Prog Menu choices that appear when 2 Week Biocide Cycle mode is selec...

Страница 32: ...R to store or EXIT to discard If either biocide is set for a 2 or 4 week cycle you can change the current week in the cycle by changing the week number If the longest biocide cycle is 2 weeks the 3Sun...

Страница 33: ...vate If the conductivity set point is 1000 and the Low setting is 20 then the Low alarm will activate at 800 The alarm can be disabled by setting it to zero Set High This is the above the bleed set po...

Страница 34: ...ctivity setting will correspond to a 4 mA output from the controller Set 20mA Pt This conductivity setting will correspond to a 20mA output from the controller Calibrate This will provide fixed 4mA an...

Страница 35: ...Indicates that the access code is disabled No access code is required to change any setting Access Code REQ Indicates that the access code is required to alter settings Access Code OK Indicates that...

Страница 36: ...into the USB port on the front panel of the controller Press the Enter key to download the file from the controller to the disk The file name for the Current Datalog will be Datalog serial number dat...

Страница 37: ...the stick into the USB port on the front panel of the controller Press the Enter key to import the configuration file from the stick to the controller The file name must have an ini extension in its n...

Страница 38: ...he file import process If the file was successfully imported from the USB disk the controller will display Transfer Success The controller will automatically reboot and come up with the new software i...

Страница 39: ...mpare with the reading in step 1 above If the variance in readings is greater than 5 increase the frequency of electrode cleaning If there is less than 5 change in the reading the electrode was not di...

Страница 40: ...on a false pH or conductivity reading Possible Cause Correction Action Green or white electrode wire disconnected Reconnect Faulty electrode Replace electrode Revert to manual temperature compensation...

Страница 41: ...ated Possible Cause Corrective Action No flow Check recirculating pump valves etc Faulty flow switch cable Check for open circuit Disconnect flow switch and short the input with a piece of wire If no...

Страница 42: ...e check the electrode connections to the terminal strip refer to Figure 3 Make sure that the correct colors go to the correct terminals and that the connections are tight Restore power and see if the...

Страница 43: ...P panel 5 ft 1 5m cable 4 High pressure electrode up to 300 psi 20 ft 6 1m cable 5 High pressure electrode flow switch manifold on PP panel 5 ft 1 5m cable 6 PP SS electrode tee 20 ft 6 1m cable 7 PP...

Отзывы: