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Process Variable

Control Set Point

Manual Output

PID Output

Output 1

PID Control Loop

Fig. B1 Single PID Controller

Control

Output

100%

50%

100%

Reverse

Acting

Process Variable Range

Single PID Controller – Fig. B1

The single PID controller is a basic feedback control system using three-term PID control with a local set point.

Fig. B2 Reverse Acting Single PID Control

APPENDIX B

B1.1

Reverse Acting Single PID Control – Fig. B2

Reverse acting control is used when the process conductivity is less than the required output conductivity.

Содержание AX413

Страница 1: ...Analyze IT Single and Dual Input Analyzers for High Level Conductivity Models AX413 AX430 AX433 AX436 AX438 User Guide IM AX4CO4_4 ...

Страница 2: ...of these instructions must be read carefully before proceeding 2 Warning labels on containers and packages must be observed 3 Installation operation maintenance and servicing must only be carried out by suitably trained personnel and in accordance with the information given 4 Normal safety precautions must be taken to avoid the possibility of an accident occurring when operating in conditions of h...

Страница 3: ...e Recovery Mode 38 5 8 Configure Security 39 5 9 Configure Logbook 39 5 10 Test Outputs and Maintenance 40 Section Page 6 INSTALLATION 42 6 1 Siting Requirements 42 6 2 Mounting 43 6 2 1 Wall Pipe mount Analyzers 43 6 2 2 Panel mount Analyzers 44 6 3 Electrical Connections 45 6 3 1 Relay Contact Protection and Interference Suppression 46 6 3 2 Cable Entry Knockouts Wall Pipe mount Analyzer 47 6 4 ...

Страница 4: ... o N 3 3 4 X A m c S m 0 0 0 2 o t 0 y t i v i t c u d n o C e d o r t c e l E 4 t u p n I l a u D y t i v i t c u d n o C e d o r t c e l E 4 y t i v i t c u d n o C e d o r t c e l E 4 6 3 4 X A P R O x o d e R H p d n a y t i v i t c u d n o C e d o r t c e l E 4 t u p n I l a u D y t i v i t c u d n o C e d o r t c e l E 4 P R O x o d e R H p 8 3 4 X A n e g y x O d e v l o s s i D d n a y t i...

Страница 5: ...e is automatically stored Menu 1 Menu 2 Advance to next menu 2 2 1 Membrane Key Functions Fig 2 2 2 OPERATION 2 1 Powering Up the Analyzer Warning Ensure all connections are made correctly especially to the earth stud see Section 6 3 1 Ensure the input sensor s is are connected correctly 2 Switch on the power supply to the analyzer A start up screen is displayed while internal checks are performed...

Страница 6: ...n 3 2 Page 9 Section 3 3 Page 9 Section 3 4 Page 10 Section 3 5 Page 10 Section 3 6 Page 12 Alarms Errors Power Cals VIEW LOGBOOK VIEW CLOCK Date 01 01 03 Time 12 00 Use the Menu Key to scroll through the Menus CONFIG SENSORS Section 5 3 Page 17 Config Sensor A A Sensor Group A Analyzer Type A Temp Comp A Temp Sensor B Sensor Group B Analyzer Type B Temp Sensor B Temp Comp Config Sensor B B Temp C...

Страница 7: ... AO3 Default AO3 Default Val Section 5 5 Page 31 Config Output 4 AO4 Assign AO4 Range AO4 Zero Value AO4 Default AO4 Default Val AO1 Span Value AO2 Span Value AO3 Span Value AO4 Span Value TEST MAINTENANCE Test Outputs Test Output 1 Test Output 2 Maintenance Hold Outputs Test Output 3 Test Output 4 Section 5 10 Page 40 Load Save Config Factory Config User Config Press To Abort Press To Set Use the...

Страница 8: ...tween 0 and 100 Control Set Point Conductivity value Control set point If A Analyzer Type set to Conc Section 5 3 use the and keys to adjust the control set point between 0 and 250 concentration or If A Analyzer Type set to Cond Section 5 3 use the and keys to adjust the control set point between 0 and the upper conductivity span value that is pre determined by the Sensor Group selection see Secti...

Страница 9: ...es to initiate an initial charge sequence Note Displayed only if A1 Type is set to Dosing see Section 5 4 2 and Initial Charge is set to Yes see Section 5 4 2 Initial Charge Sensor B Select Yes to initiate an initial charge sequence Note Displayed only if A4 Type is set to Dosing see Section 5 4 2 and Initial Charge is set to Yes see Section 5 4 2 See Section 3 1 See Section 4 1 Temperature 25 6De...

Страница 10: ...nments set point values and relay LED actions are programmable see Section 5 4 Those shown in the following frames are examples only Sensor A Conductivity Alarm 1 Set Point Sensor A Temperature Alarm 2 Set Point Sensor B Concentration Alarm 3 Set Point Dual input analyzers only Sensor B Temperature Alarm 4 Set Point Dual input analyzers only Note Alarm 4 available only if option board fitted and a...

Страница 11: ... fitted and analog features enabled see Section 7 3 3 3 View Hardware Sensor A Module Shows the type of input board fitted to the analyzer for the Sensor A input 4 Cond 4 Electrode Conductivity Sensor B Module Dual input analyzers only Shows the type of input board fitted to the analyzer for the Sensor B input Option Board Note Displayed only if the option board is fitted Displays the optional fea...

Страница 12: ...ws No More Entries Alarms The Alarms logbook contains up to 10 entries entry 1 is the most recent each comprising an alarm number alarm state On or Off and the date time of the occurrence Option board fitted and analog features enabled Section 7 3 see Section 3 6 See Section 4 1 Advance to entries 2 to 10 Note If no more entries are stored the display shows No More Entries 3 OPERATOR VIEWS 01 02 0...

Страница 13: ...ows No More Entries View Logbook Use the and keys to access the Power logbook Note If no entries are stored in the Power logbook the display shows No More Entries Power The Power logbook contains up to 2 entries entry 1 is the most recent each comprising the power state On or Off and the date time of the occurrence Option board fitted and analog features enabled Section 7 3 see Section 3 6 See Sec...

Страница 14: ...stored in the Cals logbook the display shows No More Entries Calibration The Cals logbook contains up to 5 entries entry 1 is the most recent each comprising 2 frames Frame 1 contains the entry number and sensor letter and shows User to indicate a user performed calibration Frame 2 contains either the the sensor slope and sensor offset values for a conductivity calibration or the temperature slope...

Страница 15: ...nd the display reverts to the SENSOR CAL frame Calibrate Sensor A Sensor B calibration dual input analyzers only is identical to Sensor A calibration Single input analyzers only return to main menu Alter Sec Code not set to zero Section 5 8 see Section 5 1 Alter Sec Code set to zero Section 5 8 see Section 5 2 Continued below Edit or Reset Calibration Select Edit to manually adjust the Slope and O...

Страница 16: ...1 500 until the measured temperature value is correct Temperature Offset Measured temperature value Temperature offset value Use the and keys to adjust the temperature offset value within the range 40 0 to 40 0 C 40 0 to 104 0 F until the measured temperature value is correct Sensor B calibration dual input analyzers only is identical to Sensor A calibration Single input analyzers only return to t...

Страница 17: ...Enter the required code number between 0000 and 19999 to gain access to the configuration pages If an incorrect value is entered access to the configuration pages is prevented and the display reverts to the Operating Page see Section 2 3 See Section 5 2 SECURITY CODE 0000 CONFIG DISPLAY 5 1 Security Code ...

Страница 18: ...Display Backlight Backlight Use the and keys to select the required backlight option Auto Backlight comes on at each button press and switches off one minute after the last button press On Backlight is always on Return to main menu See Section 5 3 CONFIG DISPLAY Set Language Temp Units Off Set Temp Units Deg F Deg C LED Backlight Set Backlight Auto On CONFIG DISPLAY CONFIG SENSORS Set Backlight Se...

Страница 19: ... measurement range of 0 0 to 1999mS cm 1 and a minimum measurement span of 100µs cm 1 Analyzer Type Select the analyzer type Cond measured conductivity is displayed in µS cm 1 or mS cm 1 units Conc measured conductivity is displayed in the units selected in A Concentration see page 21 Temperature Sensor Shows the type of temperature sensor fitted to the selected conductivity sensor ABB TB4 Group A...

Страница 20: ...rature compensation most suited to the application None Linear KCl NaOH NaCl HCl H2SO4 User A Temp Comp set to anything other than Linear or User continued below A Temp Comp set to Linear continued on next page A Temp Comp set to User continued on next page Filter Time Set the required filter time between 1 and 60 seconds in 1 second increments Sensor B configuration dual input analyzers only is i...

Страница 21: ...ed see Appendix A1 1 If the value has not yet been calculated set it to 2 C provisionally Filter Time Set the required filter time between 1 and 60 seconds in 1 second increments Sensor B configuration dual input analyzers only is identical to Sensor A configuration See Section 5 4 Edit User Defined Temperature Compensation Select Yes to manually define a 6 point temperature compensation curve oth...

Страница 22: ...ture value for point 1 on the curve Ratio Value Point 1 Ratio and Adjust are shown alternately on the center display line Use the and keys to adjust the displayed reading to the required ratio value for point 1 on the curve Temperature and Ratio Values Points 2 to 6 Enter the temperature and ratio values for the remaining points in the user defined temperature compensation curve Filter Time Set th...

Страница 23: ...ion of the decimal point Filter Time Set the required filter time between 1 and 60 seconds in 1 second increments Sensor B configuration dual input analyzers only is identical to Sensor A configuration See Section 5 4 Edit Concentration Select Yes to manually define a 6 point concentration curve otherwise select No Yes selected continued on next page No selected continued on page 23 5 PROGRAMMING ...

Страница 24: ...1 mS cm and Adjust are shown alternately on the upper display line Use the and keys to adjust the displayed reading to the required conductivity value for point 1 on the curve Concentration Value Point 1 and Adjust are shown alternately on the center display line Use the and keys to adjust the displayed reading to the required concentration value for point 1 on the curve Conductivity and Concentra...

Страница 25: ... User defined units Define User Units Use the and keys to select a character at the cursor position Use the key to enter the character and move the cursor Press the key when complete to advance to the next frame Decimal Place Set the position of the decimal point Filter Time Set the required filter time between 1 and 60 seconds in 1 second increments Sensor B configuration dual input analyzers onl...

Страница 26: ...generate an alarm in response to a specified sensor reading Status An alarm is generated if either a power failure or a condition occurs that causes any of the error messages in Table 8 1 page 59 to be displayed Dosing Alarm 1 is assigned as a clean in place CIP interface alarm see Section 5 4 2 Note The Dosing alarm type is applicable only to Alarm 1 and Alarm 4 if option board fitted and analog ...

Страница 27: ... 5 1 to 5 5 page 30 Alarm 1 Set Point Set the alarm set point to the required value within the sensor s measurement range see Sensor Group on page 17 Alarm 1 Hysteresis A differential set point can be defined between 0 and 5 of the alarm set point value Set the required hysteresis in 0 1 increments See also Figs 5 1 to 5 5 page 30 Alarm 1 Delay If an alarm condition occurs activation of the relays...

Страница 28: ...l Charge Time Set the initial charge period between 1 and 30 minutes in 1 minute increments Continued on next page A1 Action Low High A1 Failsafe No Yes Initial Charge Init Charge Time 30Mins A1 Setpoint 1000mS cm A1 Type set to Dosing No Yes Dosing Yes No 5 4 Configure Alarms 5 4 2 Configure CIP Interface Alarm Notes This section is applicable only if A1 Type is set to Dosing see Section 5 4 1 Al...

Страница 29: ... bandwidth alarm is activated if the measured conductivity either exceeds the Alarm 1 set point value plus the deviation set point value see below or falls below the Alarm 1 set point value minus the deviation set point value Example If A1 Setpoint is set to 1000mS cm and Dev Setpoint is set to 25 the bandwidth alarm is activated if the process variable exceeds 1250mS cm Deviation Set Point Set th...

Страница 30: ...lue Alarm 2 relay energizes Alarm 2 LED is lit and a High Alarm error message is displayed see Table 5 1 and the measured conductivity falls below the Alarm 1 set point value minus the deviation set point value Alarm 2 relay energizes Alarm 2 LED is lit and a Low Alarm error message is displayed see Table 5 1 Off Status or CIP Status selected return to top of page Alarm selected see Section 5 4 1 ...

Страница 31: ...u l a v h t d i w d n a B e u l a v t n i o p t e s 1 m r a l A t n i o p t e s m r a l A h g i H e g r a h C g n o L e g r a h C l a i t i n I o t t e s s i s e Y d e h c a e r s a h y t i v i t c u d n o c d e r u s a e m e h t e r o f e b d e r i p x e s a h d o i r e p e g r a h c l a i t i n i e h T e u l a v t n i o p t e s 1 m r a l A e h t f o 0 9 g n i s o D g n o L g n i s o D o t t e s ...

Страница 32: ...the process variable exceeds the defined set point Low Alarm Actions are the same except the alarm is activated when the process variable drops below the defined set point Relay Energized LED Off Relay De energized LED On Process Variable High Set Point Relay Energized LED Off Relay De energized LED On Process Variable Hysteresis High Set Point Relay Energized LED Off Relay De energized LED On Pro...

Страница 33: ...ING 5 5 Configure Outputs Configure Output 1 Output 2 configuration and Outputs 3 and 4 if option board fitted and analog features enabled see Section 7 3 is identical to Output 1 configuration Assign Select the sensor and analog output required Sen A Conductivity or concentration for the selected sensor Sen B Temp A Temperature for the selected sensor Temp B Note Sen B and Temp B are applicable o...

Страница 34: ... drives the analog output to the level set in the Default Val frame below Hold Hold the analog output at the value prior to the failure Default Value The level to which the analog output is driven if a failure occurs Set the value between 0 00 and 22 00mA Output 2 configuration and Outputs 3 and 4 if option board fitted and analog features enabled see Section 7 3 is identical to Output 1 configura...

Страница 35: ...tion 5 8 Date Format Select the required date format Date Set the date in the format selected above Press to move between the day month and year fields Use the and keys to adjust each field Time Set the time in the format hh mm Press to move between the hours and minutes fields Use the and keys to adjust each field Press to Set and Press to Abort are shown alternately on the lower display line Pre...

Страница 36: ...ID controller Controller set to PID see Section 5 7 1 See Section 5 8 5 7 Configure Control Notes PID control is applicable only to single input analyzers Before configuring the PID controller refer to Appendix B for further information CONFIG CONTROL Controller PID Controller PID Off CONFIG SECURITY ...

Страница 37: ...ents Integral Action Time Set the integral action time between 1 and 7200 seconds in 1 second increments Set to OFF to disable integral action time Derivative Action Time Set the derivative action time between 0 1 and 999 9 seconds in 0 1 second increments Set to OFF to disable derivative action time Output Type Set the required output type Time Time proportioning relay 1 Analog Analog output anal...

Страница 38: ... 7 5s 5s 5s Output Range 4 20mA 0 20mA 0 10mA Output Type set to Analog Power Recovery PID Controller CONFIG SECURITY Time Proportioning Output The time proportioning output value is calculated using the following equation on time control output x cycle time 100 Set the cycle time between 1 0 and 300 0 seconds in 0 1 second increments see Appendix B Fig B4 Mode C Note Changes to the cycle time do ...

Страница 39: ... 0 7s 0 3s 5 PROGRAMMING Pulse Frequency Ouput The pulse frequency output is the number of relay pulses per minute required for 100 control output The actual number of pulses per minute is calculated using the following equation Actual pulses per minute control output x pulse frequency output 100 Set the pulse frequency between 1 and 120 pulses per minute in 1 pulse per minute increments Note Chan...

Страница 40: ...Mode is set to Manual irrespective of its setting prior to the power failure Control Output Section 2 3 is set to the level set in the Default Output frame below Last Control Mode and Control Output are set to the same state as that set prior to the power failure Default Output Set the default output required after Power Failure Recovery between 0 and 100 in 0 1 increments Note A setting of 0 repr...

Страница 41: ...Alter Security Code Set the security code to a value between 0000 and 19999 Alter Calibration Code Set the sensor calibration access code to a value between 0000 and 19999 Return to main menu Option board fitted and analog features enabled Section 7 3 see Section 5 9 Configure Logbook Use the and keys to to set the logbook On or Off If Off is selected all data entries in the logbook are cleared Re...

Страница 42: ...ee Section 7 3 Test remaining outputs Maintenance Hold Outputs Enables the relay action and analog outputs to be maintained Auto Changes in relay action and analog outputs are disabled during sensor calibration On Changes in relay action and analog outputs are disabled Off Changes in relay action and analog outputs are not disabled Note The LEDs flash while the analyzer is in Hold mode Continued o...

Страница 43: ...borted the display returns to the Operating Page and CAL ABORTED is displayed Continued below See Section 7 3 Load Save Configuration Select whether a configuration is to be loaded or saved Note If No is selected pressing the key has no effect Return to main menu See Section 7 3 Load User Factory Configuration Note Applicable only if Load Save Config is set to Yes Factory Config resets all the par...

Страница 44: ...tance 30 5m 100 ft Sensor Group A 15 2m 50 ft Sensor Group B 65 C 149 F Max 20 C 4 F Min IP66 NEMA 4X 6 1 Siting Requirements Notes Mount in a location free from excessive vibration Mount away from harmful vapours and or dripping fluids Where possible mount the analyzer at eye level to allow an unrestricted view of the front panel displays and controls 6 INSTALLATION ...

Страница 45: ... B Pipe mounting Position U bolts on pipe Position plate over U bolts Secure transmitter to mounting plate Secure plate A Wall mounting Mark fixing centres see Fig 6 2 Drill suitable holes 1 2 3 4 1 2 3 61 23 8 OD Vertical or Horizontal Post Secure instrument to wall using suitable fixings Fig 6 3 Wall Pipe mounting 6 2 Mounting 6 2 1 Wall Pipe mount Analyzers Figs 6 2 and 6 3 ...

Страница 46: ...g screw on each panel clamp Remove the panel clamp and anchors from the instrument case Cut a hole in the panel see Fig 6 4 for dimensions Instruments may be close stacked to DIN 43835 1 2 3 4 5 6 Refit the panel clamps to the case ensuring that the panel clamp anchors are located correctly in their slots Fig 6 5 Panel mounting 6 2 Mounting 6 2 2 Panel mount Analyzers Figs 6 4 and 6 5 Note The cla...

Страница 47: ... must be appropriately connected in series with the power supply and the alarm control device which they are to actuate Ensure that the contact rating is not exceeded Refer also to Section 6 3 1 for relay contact protection details when the relays are to be used for switching loads Do not exceed the maximum load specification for the selected analog output range The analog output is isolated there...

Страница 48: ...ications the value of the resistor capacitor network depends on the load current and inductance that is switched Initially fit a 100R 0 022µF RC suppressor unit part no B9303 as shown in Fig 6 6A If the analyzer malfunctions locks up display goes blank resets etc the value of the RC network is too low for suppression and an alternative value must be used If the correct value cannot be obtained con...

Страница 49: ...rom the outside Secure the cable gland with the nut 2 3 4 6 Cable entry knockouts Factory fitted cable gland 1 Release the four captive screws and remove the terminal cover plate Fig 6 7 Cable Entry Knockouts Wall Pipe mount Analyzer Note When removing knockouts take great care not to damage wiring and components within the analyzer 6 3 Electrical Connections 6 3 2 Cable Entry Knockouts Wall Pipe ...

Страница 50: ...l Pipe mount Analyzer Terminal Block A Terminal Block B Terminal Block C Option Board Case Earth Ground Stud Release the four captive screws and remove the terminal cover plate 6 4 Wall Pipe mount Analyzer Connections 6 4 1 Access to Terminals Fig 6 8 ...

Страница 51: ...ectrical connections see Warnings on page 45 Earth Ground Stud on Case see Fig 6 8 Line L Neutral N Connect supply earth ground to stud on case E C A4 Relay 1 NC A5 NO A6 C A7 Relay 2 NC A8 NO A9 C A10 Relay 3 see Note below NC A11 NO A12 Analog Output 1 A13 A14 Analog Output 2 A15 A16 85 to 265 V AC Power Supplies 12 to 24V DC or 24 V AC Terminal Block B 4 Electrode Conductivity Cell Connections ...

Страница 52: ...LLATION Terminal Block C Option Board Terminal Block B Terminal Block A Earth Ground Stud Fig 6 10 Access to Terminals Panel mount Analyzers 6 5 Panel mount Analyzer Connections 6 5 1 Access to Terminals Fig 6 10 ...

Страница 53: ...Block C Option Board C1 Not Used C2 Not Used C3 C4 C5 C6 Not Used C7 C C8 NC Relay 4 C9 NO C10 C C11 NC Relay 5 C12 NO C13 Analog Output 3 C14 C15 Analog Output 4 C16 Earth Ground Stud on Case see Fig 6 10 Used for optional RS485 connection Refer to IM PROBUS 85 to 265 V AC 12 or to Power 24 V AC 24V DC Supplies Before making any electrical connections see Warnings on page 45 Terminal Block B 4 El...

Страница 54: ... of 0 1R ohms accuracy 0 1 c Digital milliammeter current output measurement 0 to 20mA Note Resistance boxes have an inherent residual resistance that may range from a few mR ohms up to 1R ohms This value must be taken into account when simulating input levels as should the overall tolerance of the resistors within the boxes 7 2 Preparation a Switch off the supply and disconnect the conductivity c...

Страница 55: ...d is fitted and analog features enabled see page 58 Dual input analyzer only Key Cal Output 3 Cal Output 4 O3 Adjust 4mA O4 Adjust 4mA O3 Adjust 20mA O4 Adjust 20mA Cal Output 2 O2 Adjust 4mA O2 Adjust 20mA Use the Sidescroll Key to scroll through the Pages within each Menu Use the Menu Key to scroll through the Menus Section 7 3 Page 54 Option Board Use the Downscroll Key to scroll through the Fr...

Страница 56: ...page Resistance Span 25000R ohms Set the cell simulator to 25000R ohms The display advances automatically to the next step once a stable and valid value is recorded Note The upper 7 segment display shows the measured voltage Once the signal is within range the lower 7 segment display shows the same value and Calib is displayed to indicate that calibration is in progress Resistance Span 2500 ohms S...

Страница 57: ... step once a stable and valid value is recorded Temperature Zero 1000R ohms Set the temperature simulator to 1000R ohms The display advances automatically to the next step once a stable and valid value is recorded Temperature Span 1K5 Set the temperature simulator to 1500R ohms The display advances automatically to the next step once a stable and valid value is recorded Continued on next page A Re...

Страница 58: ...ature Span 5000R ohms Set the temperature simulator to 5000R ohms The display returns automatically to Cal Sensor A once a stable and valid value is recorded Abort Calibration Select Yes or No Yes selected before completion of A Res 0 5 ohm frame calibration advances to A T Zero 1K0 and continues after completion of A Res 0 5 ohm frame the display returns to the Calibrate Sensor A page No selected...

Страница 59: ...e Output 2 Note Output 2 calibration is identical to Output 1 calibration Option board fitted and analog features enabled continued on next page Option board fitted additional features disabled continued on next page Option board not fitted continued on next page Option board fitted and analog features enabled continued on next page Option board fitted additional features disabled continued on nex...

Страница 60: ...f an option board is fitted but cannot detect the additional features available If an option board is fitted the correct selection must be made below to enable use of the available features If an incorrect selection is made the software menus and frames associated with that option are displayed in the Operating and Configuration pages but the features do not work Use the and keys to enable the fea...

Страница 61: ...nductivity cell Table 8 3 Temperature Readings for Resistance Inputs Table 8 1 Error Messages Table 8 2 Conductivity Readings for Resistance Inputs e g a s s e M r o r r E e s u a C e l b i s s o P 0 0 0 1 t P Y T L U A F A o c l a B Y T L U A F A d e t a i c o s s a r o t a s n e p m o c e r u t a r e p m e T n e p o r e h t i e e r a A r o s n e S r o f s n o i t c e n n o c t i u c r i c t r o ...

Страница 62: ...ever is the greater Resolution 0 1 at 10mA 0 05 at 20mA SPECIFICATION Conductivity Range Conductivity Programmable 0 000 to 1999mS 1 uncompensated Concentration 0 000 to 1 999 digits user configurable Selectable concentration ranges 0 to 15 NaOH 0 to 18 HCl 0 to 20 H2SO4 0 to 40 H3PO4 0 to 20 NaCl User defined table Temperature 20 to 300 C 4 to 572 F Sensor Full Scale Measurement Ranges a TB4 Grou...

Страница 63: ...Data Wall Pipe mount versions IP66 NEMA4X Dimensions 192mm high x 230mm wide x 94mm deep 7 56 in high x 9 06 in wide x 3 7 in deep Weight 1kg 2 2 lb Cable Entry Types Standard 5 or 7 x M20 cable glands N American 7 x knockouts suitable for 1 2 in Hubble gland Panel mount versions IP66 NEMA4X front only Dimensions 96mm x 96mm x 162mm deep 3 78 in x 3 78 in x 6 38 in deep Weight 0 6kg 1 32 lb Power ...

Страница 64: ...ernationally accepted standard Most commonplace weak aqueous solutions have temperature coefficients of conductance of the order of 2 per C i e the conductivities of the solutions increase progressively by 2 per C rise in temperature at higher concentrations the coefficient tends to become less At low conductivity levels approaching that of ultra pure water dissociation of the H2 O molecule takes ...

Страница 65: ...ess Variable Range B1 Single PID Controller Fig B1 The single PID controller is a basic feedback control system using three term PID control with a local set point Fig B2 Reverse Acting Single PID Control APPENDIX B B1 1 Reverse Acting Single PID Control Fig B2 Reverse acting control is used when the process conductivity is less than the required output conductivity ...

Страница 66: ... Range B2 Ouput Assignment The output signal is assignable to either relay 1 Time or Pulse output type or analog output 1 Analog output type B1 2 Direct Acting Single PID Control Fig B3 Direct acting control is used when the process conductivity is greater than the required output conductivity APPENDIX B ...

Страница 67: ...ing Proportional Band 100 Integral Time 0 off see Section 5 7 1 Derivative Time 0 off Notes If the system goes into oscillation with increasing amplitude Fig B4 Mode B reset the proportional band to 200 If oscillation continues as in Mode B increase the proportional band further until the system ceases to oscillate If the system oscillates as in Fig B4 Mode A or does not oscillate refer to step c ...

Страница 68: ...66 NOTES ...

Страница 69: ...umentation pH Conductivity and Dissolved Oxygen Transmitters and Sensors Ammonia Nitrate Phosphate Silica Sodium Chloride Fluoride Dissolved Oxygen and Hydrazine Analyzers Zirconia Oxygen Analyzers Katharometers Hydrogen Purity and Purge gas Monitors Thermal Conductivity Customer Support We provide a comprehensive after sales service via a Worldwide Service Organization Contact one of the followin...

Страница 70: ...thout notice Printed in UK 08 04 ABB 2004 ABB Limited Oldends Lane Stonehouse Gloucestershire GL10 3TA UK Tel 44 0 1453 826661 Fax 44 0 1453 829671 ABB Inc Analytical Instruments 9716 S Virginia St Ste E Reno Nevada 89521 USA Tel 1 0 775 850 4800 Fax 1 0 775 850 4808 ABB has Sales Customer Support expertise in over 100 countries worldwide www abb com ...

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