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1. 0 sssssceorcrserssnsscenseansrsssetonceaseossscsacsaseassisenersredaes 27 Figure 7 The complete calibrate menu for conductivity and turbidity SENSOFS o ooonocncnnccnoccnoconononcnonocononnnos 27 Figure 8 The pH sensor value is dynamically updated during a 1 point buffer calibration o o 28 Figure 9 The pH sensor value is dynamically updated during a 2 point buffer calibration 30 Figure 10 Dynamic display of the conductivity value during Calibration o oononiocnnoniccnoccnonccononononnnonncnnnnnnos 35 Figure 11 The conductivity calibration edit SCROT iaa 35 Figure 12 Entering the conductivity calibration value A AS 35 Figure 13 Dynamic display of the pH value during calibration ooooonocninnnoccnonononooncnnncononononononnnnnncononnnos 37 Figure 14 The pH callbradon dise ees 5 iacce2 4 ues wast spate gneancy dee ate vies aia dicseas anus ah Gonndotenaae sateuavFucae ionandatadees 37 Figure 15 Entering the pH calibration Valle coco spavadeese souttavanveies ona mnesanavetuaverernsavaes 38 Figure 16 The complete calibrate menu for conductivity 0 ssccoccorceesersonssecesstarseessctenceascoesacsacsicearsisonersseaaes 39 Fi re 17 Zer is CAMA A 40 Figure 18 The user is prompted to place the sensor in air oooooonnoononccooconnoonnonnconnconoononoonoonncnnconnconoonoss 41 Figure
2. L g 3 E MENU ESC ENTER 15 RESET AV38 Resetting the AV38 will bring all sensor configurations analog outputs PID and relay settings back to default conditions Communications display contrast sensor calibration and analog output calibration are NOT reset Main Menu gt Reset AV38 AAA A Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 75 16 LIMITED WARRANTY AV38 WARRANTY REPLACEMENT PLAN Thermo Fisher Scientific warrants its AV38 Local Display against material and workmanship defect for a period of one year from the date of shipment In the event that a defect is discovered during the warranty period Thermo Fisher Scientific agrees at its option to repair or replace the defective product Any product repaired or replaced under this warranty will be warranted only for the remainder of the original product warranty period This warranty does not apply to consumable products associated with this product including but not limited to chemical reagents and salt bridges Products may not be returned without authorization from Thermo Fisher Scientific To obtain authorization please call Thermo Fisher Scientific for a return material authorization number Limitations This warranty does not cover 1 Damage caused by misuse neglect lack of appropriate maintenance alteration accident or improper application or installation 2 Damage caused by any repair or attempted rep
3. Use the UP DOWN arrows to scroll the list of PID Controller options for viewing and editing PID Controller Set Algorithm gt Set Input gt Set Full Scale gt Set Zero Scale gt Set Setpoint gt Set Prop Gain gt Set Integ Gain PbSet Deriv Gain PbSet Trans Time gt Set Man Reset PbManual Mode Exit al AAA a Each of the PID controller options used to configure and tune the loop is shown below for a sensor type of pH Table 10 PID Controller functions for pH PID Function Edit Range Default Setting Set Algorithm ISA or Velocity ISA Set Input Sensor 1 or Sensor 2 Sensor 1 DS1 Set Full Scale 0 to 14 pH 14 pH Do not change Set Zero Scale 0 to 14 pH QpH Do not change Set Setpoint 0 to 14 pH 7 pH Set Proportional Gain 99 99 to 99 99 0 00 is direct action is reverse action Set Integral Gain 0 00 to 50 00 reps min 0 00 reps min Set Derivative Gain 0 00 to 10 00 seconds 0 00 seconds Set Transit Time 0 to 9999 seconds 0 seconds Set Manual Reset 0 0 to 100 0 0 Manual Mode Control 0 0 to 100 0 0 Process value is displayed 3 Transit Time is available only when the Algorithm is set to Velocity Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 67 Scroll through these configuration and tuning options with UP DOWN arrows Press ENTER to select an option and view or edit the setting Press ENTER to change settin
4. 99 99 al ka MENU ESC ENTER p B H Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 54 A summary of the actions of the various keys for the viewing and editing modes is shown in Table 7 Table 7 Summary of key actions Mode Action Press Scroll X and Y LEFT and RIGHT arrow Scroll point UP and DOWN arrow Viewing Edit coordinate ENTER enter editing mode Leave the table ESC Change coordinate UP and DOWN fine change value LEFT and RIGHT gross change Save new value and return to viewing ENTER Editing mode Leave coordinate value unchanged return to viewing Pps mode Default Concentration Table The default concentration table is shown in Table 8 Table 8 The default concentration table Point Conductivity Concentration X Coordinate Y Coordinate uS cm 1 0 0 2 20 000 99 99 3 0 0 4 0 0 5 0 0 6 0 0 7 0 0 8 0 0 9 0 0 10 0 0 Using the default table if the measured conductivity is 10 000 uS cm then the concentration will be 50 Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 55 6 HOST COMMUNICATIONS The AV38 can be set up to communicate with a Host Computer system The protocol selected is independent of the Modbus protocol used by the AV38 to communicate with the DataSticks When using Host Communications please refer to the selected
5. Calibrate A0 1 m4 mA Point MENU ESC ES Ea The ammeter should read exactly 4 00 mA If not adjust the value displayed on the meter using the AV38 UP DOWN arrow keys The number displayed in parentheses is in counts and should be within 20 of 2500 Press ENTER to accept the value in parentheses Press ESC to leave the value unchanged Cal 4 mA Point 2467 ES E Bal From the Analog Output Calibrate Menu use the UP DOWN arrows to display the 20 mA Point Select with the ENTER key MENU ESC ENTER p f E Calibrate AO 1 gt 20 mA Point ES Ed Ba MENU ESC ENTER p i H Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 65 The ammeter should read exactly 20 00 mA If not adjust the value displayed on the meter using the AV38 UP DOWN arrow keys The number displayed in parentheses is in counts and should be within 20 of 12 500 Press ENTER to accept the value in parenthesis Press ESC to leave the value unchanged Cal 20 mA Point 12440 ET From the Analog Output Calibrate Menu Press ESC to move back up the MENU tree to the Measure screen Calibrate AO 1 gt 20 mA Point Per ae Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 66 11 PIDCONTROLLER MENU The PID Controller is present in the Main Menu list when a pH or conductivity DataStick is connected Press ENTER to select PID CONTROLLER gt PID Controller ET
6. KA Press the DOWN ARROW for next selection Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 24 Select HELP with the ENTER key Main Menu gt Help gt To read the AV38 firmware version aor Press the DOWN ARROW for next selection a Select Reset AV38 with the ENTER key gt Reset AV38 gt Set output PID and relay functions to default values id gt Press an UP ARROW to review the menu ka Press ESC for Measure alternate method Seta Meta Select EXIT with the ENTER key Exit gt Return to the measure screen Press an UP ARROW to review the menu ES Press ESC for Measure alternate method Ter T Measure Screen 30 8 C HDS1 6 Note Station Address in lower right The relay activity indicators AB show that both Relay A and ES gt Relay B are activated The H in front of DS1 6 indicate that outputs and relays are on HOLD Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 25 4 CALIBRATE MENUS Calibration methods supported in the AV38 are automatically available depending on the sensor head connected to the DataStick The supported calibration methods are listed below Table 3 Calibration methods Calibration Method Sensors Supported 1 Point Sample Set measured reading to desired reading Changes offset Best done at high end of range All 2 Point Sample Sets measured read
7. Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 57 Edit the Station number in parentheses using the UP and DOWN arrows Select a new number with the ENTER key To be sure that a new number is NOT selected press the ESC key to leave the station number unchanged The station number selected must match the number programmed into the Modbus Comms Adapter of the DataStick wired to the AV38 DS1 Station 1 REO 7 2 Setting Data Type All DataSticks connected to the AV38 must be set up with the same Data Type To view or edit the current AV38 Data Type setting press ENTER on the Data Type screen as shown The default setting is Big Endian 2 DataStick Comms PbSet Data Type MENU ENTER lt gt Use the UP DOWN arrows to edit the AV38 Data Type Big Endian 2 and Little Endian Word Swap 1 are the two data types supported in the AV38 The default data type is Little Endian Word Swap 1 as it is most commonly used If measurement data is displayed but does not make sense then it is very likely that the Data Type should be switched Data Type Big Endian 2 EF Select a new data type with the ENTER key To be sure that a new data type is NOT selected press the ESC key to leave the data type unchanged The data type selected must match the data type programmed into the Modbus Comms Adapter of the DataStick wired to the AV38 Thermo Scientific AquaSensors AV38 Local Display and Control
8. gt Ea MENU ESC ENTER g B E Temperature Offset too high AA When the enter key is pressed the calibrate menu is displayed This ends the temperature calibration procedure The user has the option of repeating the procedure if desired Calibrate gt Temperature EN gt Ez p E E MENU ESC ENTER Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 45 5 CONFIGURE MENU The configuration menu allows viewing and editing of sensor constants and will depend on the type of sensor head that is installed in the DataStick Table 4 The Configure menu Configuration Type__ Function______ Sensors Supported Sensor Filter Filter main parameter in seconds Set zero All seconds for no filter Set up to 100 seconds for time to reach 90 of final value 1 to 5 seconds should be optimal for most applications Sensor Units PH pH or mV All ORP mV Conductivity uS cm TDS or MOecm D O Ozone Chlorine ppm Drinking Water Turbidity Raw Water Turbidity NTU Suspended Solids mg l or ppm Temperature Filter Filter temperature in seconds Set zero seconds All for no filter Set up to 100 seconds for time to reach 90 of final value 1 to 5 seconds should be optimal for most applications The temperature filter value should generally be set to the same value as the sensor filter Temperature Units Select Celsius or Fahrenheit All Buffer Standard Se
9. p 3 E 2 Point Buffer Confirm abort MENU ESC EN al When the enter key is pressed the analog output is placed into the active mode and the monitoring of sensor and temperature values is resumed This ends the 2 point buffer calibration procedure Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 33 4 4 1 Point Sample Calibration Sensor Type All The screen by screen example for a 1 point sample calibration is given for a conductivity sensor in this section The same sequence is followed for any sensor type Only the units of measure and range of acceptable values will change When a 1 point sample calibration is applied to chlorine the calibration value being adjusted will be for free chlorine even if HOCL is selected for measurement and outputs Press MENU from the Measure Screen 991 3 uS cm AB 30 8 C DS1 6 a e Scroll to CALIBRATE with the UP DOWN Arrows and press ENTER PbCalibrate ETE Scroll the list of CALIBRATE options with the UP DOWN arrows and press ENTER to select 1 POINT SAMPLE Calibrate 1 Point Sample PbZero PTemperature Exit se Be sure the sensor has been properly cleaned before calibration Initiate the 1 point sample process by pressing ENTER Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 34 The sensor value is dynamically displayed at this point in the calibration procedure as shown in Figure 10 When the reading has
10. 1 DS1 or channel 2 DS2 If a pH DataStick is to be used for compensation it must be connected to the other channel For example if a chlorine DataStick is connected to channel 1 then the pH DataStick must be connected to channel 2 A Chlorine DataStick connected at Station 1 will bring up a Chlorine Configuration selection in the main menu It will allow the measurement value to be selected as free chlorine or HOCI concentration If free chlorine concentration is selected then the pH must be known If the pH value of the process is constant the Chlorine Config menu provides a means to enter a fixed value for pH If the pH value varies then the pH can be measured with a second DataStick sensor connected to the AV38 If a pH DataStick is present then the derivation of free chlorine concentration can be made by the AV38 using the HOCL concentration and temperature measurement from the Chlorine DataStick and the pH measurement from the pH DataStick This is done by selecting pH DataStick in the pH Source screen under Chlorine Config If a pH DataStick is not detected by the AV38 the only option under pH Source will be Fixed pH where the value of the pH can entered manually Chlorine Config PbMeasurement PpH Source Fixed pH Value Exit EEE The Measurement screen provides a selection of Free Chlorine or HOCI concentration Measurement ppmFCL2 ppmHOCL The pH Source screen provides a way to select the
11. Activation A wash relay activates periodically for a specified length of time It is assumed that the wash relay is connected to some kind of automatic cleaning apparatus attached to a DataStick While a wash relay is activated the analog outputs and relays are held because it is assumed that a DataStick is being washed and the sensor and temperature values are not valid A wash relay is controlled by the corresponding Interval Duration and Off Delay The Wash Cycle is disabled by setting the Interval to 0 If WASH is selected the following activation options can be programmed in the ACTIVATION menu Table 14 Wash relay functions WASH Function Edit Range Default Setting Set Interval 0 0 to 999 9 minutes 0 0 minutes disabled Set Duration 0 to 999 seconds 10 seconds Set Off Delay 0 to 999 seconds 5 seconds The wash cycle is shown in Figure 25 Time Activated De activated Duration Interval L Outputs held Outputs active Power up Figure 25 The wash cycle showing when the relay is activated and the outputs are held e At power up if the Interval value is greater than zero the wash cycle is started by placing the outputs in hold mode activating the wash relay and starting the duration counter e When the duration counter expires the relay is de activated and the off delay counter is started e When the off delay counter expires the outputs are returned to the active mode e The was
12. Analog Output No Relays and No Host Comms Terminal 24 VDC from Power Supply Ground from Power Supply No connect No connect Earth Ground from Power Supply Red wire from DataStick Black wire from DataStick White wire from DataStick Blue wire from DataStick Shield wire from DataStick Current Loop Power provided by AV38 Current Loop Model AV38 CB5C1 DC Powered DeviceNet Host Two Relays and Two 4 20mA Analog Outputs Wiring o 24VDC from Power Supply Ground from Power Supply and Network DeviceNet Network CAN_HI White Wire DeviceNet Network CAN_LO Blue Wire Shield wire from Host Network Red wire from DataStick cable Black wire from DataStick cable White wire from DataStick cable Blue wire from DataStick cable Shield wire from DataStick cable Current Loop 1 Current Loop 1 Relay A Normally Open Contact Relay A Common Relay A Normally Closed Contact Current Loop 2 Current Loop 2 Relay B Normally Open Contact Relay B Common Relay B Normally Closed Contact CO CO Nl OF Al Go PO S fo 1 12 QO gt m U IOT Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 16 AC Powered AV38 XBXXX2 The AC powered AV38 Display comes with two terminal blocks when ordered with one or two 4 20 mA analog outputs and or host communications If relays are ordered a
13. Figure 21 Configure PSensor Filter PSensor Units gt Temp Filter gt Temp Units PBuffer Standard Exit Figure 21 The complete configure menu for pH The complete configure menu for D O Ozone and Chlorine is shown in Figure 22 Configure PSensor Filter PSensor Units gt Temp Filter gt Temp Units PbSalinity PbPressure Exit Figure 22 The complete configure menu for D O Ozone and Chlorine The complete configure menu for turbidity is shown in Figure 23 Configure PbSensor Filter gt Temp Filter gt Temp Units Exit Figure 23 The complete configure menu for turbidity Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 47 5 2 Navigating Sensor Filter Configuration The following sequence shows how the sensor filter configuration is viewed and set The gray key is pressed to move to the next screen This sequence is an example for all configuration menus From the Measure Screen Press the MENU key 991 3 uS cm AB 30 8 C DS1 6 area Scroll to the CONFIGURE Menu with the UP and DOWN arrows PbCalibrate Ca Select ENTER when CONFIGURE is displayed P Configure E 2 Scroll to SENSOR FILTER using the UP and DOWN arrows gt Sensor Filter AA A Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 48 Select SENSOR FILTER using the ENTER key Configure PSensor Filter ES Ea Use the UP and DOWN arrow keys to change the
14. S patent 6 168 707 ORION Series A meters and 900A printer are protected by U S patents 5 198 093 D334 208 and D346 753 ionplus electrodes and Optimum Results solutions are protected by U S patent 5 830 338 ROSS Ultra electrodes are protected by U S patent 6 793 787 ORP standard is protected by U S patent 6 350 367 No Cal electrodes are protected by U S patent 7 276 142 2009 Thermo Fisher Scientific Inc All rights reserved All trademarks are the property of Thermo Fisher Scientific Inc and its subsidiaries The specifications descriptions drawings ordering information and part numbers within this document are subject to change without notice This publication supersedes all previous publications on this subject Preface This instruction manual serves to explain the use of the Thermo Scientific AquaSensors AV38 Local Display and is written to cover as many applications as possible Please do not hesitate to contact Thermo Fisher Scientific or an authorized representative with questions or concerns The information presented in this instruction manual is subject to change without notice as improvements are made and does not represent any commitment whatsoever on the part of Thermo Fisher Scientific Thermo Fisher Scientific cannot accept any responsibility for damage or malfunction of the product due to improper use Contact Information To contact Thermo Scientific AquaSensors Technical Support Within the United St
15. arrows to select Analog Output or Analog Output 1 Analog Output 2 depending on hardware options Main Menu PbCalibrate EEE EE Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 63 Use the ENTER key to configure the Analog Output of choice In this example Analog Output 1 is shown Main Menu PAnalog Output 1 AA Use the UP DOWN arrows to scroll through the Analog Output configuration options of Set Parameter Set 4 mA Value Set 20 mA Value and Calibrate Analog Output 1 gt Set Parameter gt Set 4mA Value PbSet 20mA Value PbCalibrate Exit Select SET 4 mA option with the ENTER key Adjust the parameter value with the UP DOWN arrow keys Press ENTER to accept the value in parentheses Press ESC to leave the value unchanged Set 4mA Value 4 00 pH MENU J E Select SET 20 mA setting with the ENTER key Adjust the parameter value with the UP DOWN arrow keys Press ENTER to accept the value in parentheses Press ESC to leave the value unchanged Set 20mA Value 8 00 pH Je ba Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 64 10 2 Calibrating Analog Output Current To calibrate the analog outputs find the CALIBRATE option with the UP DOWN arrow keys in the Analog Output menu and press ENTER to select it Analog Output 1 PbCalibrate ES 2 Connect an ammeter in series with the load and Select 4 mA Point with the ENTER key MENU
16. as re a 68 Table 12 Control relay TUNC Sain n a a Te a Ee E r Eaa 70 Table 13 Alarm relay UCSI cade 71 EMS a A SEERE aT 72 Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 5 1 INTRODUCTION 1 1 General Information Thank you for purchasing the Thermo Scientific AquaSensors AV38 Local Display The product is designed for continuous use in industrial process applications and complies with safety regulations currently in force Improper use could lead to hazards for the user or a third party and or adverse effects to the plant or other equipment Thermo Fisher Scientific does not accept any liability for damage that may arise if information in this manual is not followed Therefore the operating instructions and specifications must be read and understood by all persons involved in installation and operation of this equipment This manual identifies safety instructions and additional information by means of the following symbols This symbol draws attention to safety instructions and warnings of potential danger which if neglected could result in injury to persons and or damage to property CS This symbol identifies additional information and instructions which if neglected could lead to inefficient operation and possible loss of production It is recommended that this manual be made accessible to everyone who may need it as a reference Please contact Thermo Fisher Scientific
17. being used to calibrate the DataStick its analog output is held at its present value When a sensor head of the same type is replaced in a DataStick analog output and relay settings are maintained If a sensor head of a new type is installed analog output and relay settings are automatically set to default values The analog output menu is used to scale the analog output in the AV38 The following selections are available for each output gt PARAMETER is used to select SENSOR 1 SENSOR 2 TEMPERATURE 1 TEMPERATURE 2 or PID CONTROLLER if installed with pH sensor to drive the analog output Note that if PID is selected setting up 4 mA and 20 mA values is not necessary or available Settings for PID are set up separately in the PID section of the main menu gt SET 4 mA VALUE is used to edit the lowest sensor or temperature value to be reported The default value will be the lowest possible reading for the parameter selected gt SET 20 mA VALUE is used to edit the highest sensor or temperature value to be reported The default value will be the highest possible reading for the parameter selected gt The CALIBRATE feature is used to fine tune the milliamp readings when necessary An ammeter is connected in series with the load for adjustment of the 4 mA value and the 20 mA value 10 1 Assigning 4 mA and 20 mA parameter values Press MENU from the Measure screen 991 3 pS cm AB 30 8 C DSi 6 ic e a Use the UP DOWN
18. communications manual for specific protocol setup and use Table 9 Host protocol vs user s manual Host Protocol User s Manual to Set up Address Baud Rate and Parit Modbus RTU Modbus Communications Adapter Users Manual MANO21CA DeviceNet DeviceNet Communications Adapter Users Manual MANO22CA RS 232 DataStick Instruction Manual MANO11DS 9600 bps no parity 8 data bits 1 stop bit Profibus Profibus to DataStick Communications Adapter Instruction Manual MANO33CA Other Look for addendums on setting up other protocols that may be configured When Host Communications hardware is present a host computer can communicate with the DataSticks connected to the AV38 There are two basic host communication modes Gateway and Analyzer When using either mode it is better to program the host device to respond to events rather than perform desired operations based on elapsed time This is because there is a limited bandwidth between the AV38 and the DataSticks connected to it and any host commands not handled by the AV38 must be forwarded to a DataStick If the host makes a request too often the system will slow down Hard coded timers are rigid and it is difficult for the programmer to know how often is too often If the host waits for a response from the AV38 before sending the next request slow downs can be avoided and the system will be more flexible Gateway Mode Gateway mode is selected by setting th
19. contrast ojoj Xalaxi s Nao A B C D E F G H a 991 3 pS cm AB 30 8 C DS1 6 S A Figure 1 The elements of the AV38 user interface For illustration of menu navigation in this manual a pressed key is identified by a gray background e g When the AV38 is equipped with host communications hardware the measure screens will toggle between channel 1 channel 2 and Gateway Mode using RIGHT and LEFT arrow keys 991 3 pS cm AB Tar pH AB Gateway Mode 30 8 C DS1 6 30 8 C DS2 7 lt gt to exit fi ey Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 18 The sensor measurement is displayed on the top line and the temperature measurement is displayed on the bottom line The AB indicators on the top right indicate activation of relays A and B An underscore indicates that the corresponding relay is not activated The DS1 6 indicates that Channel 1 is connected to the DataStick with a Modbus address of 6 The DS2 7 indicates that Channel 2 is connected to the DataStick with a Modbus address of 7 Calibration and configuration functions are accessed by pressing the MENU key from the appropriate measure screen For example the DataStick with a Modbus address of 6 can be calibrated and configured if the MENU key is pressed while the screen shows DS1 6 Correspondingly the DataStick with a Modbus address of 7 can be calibrated an
20. does not depend on the sensor or temperature measurements gt First select the desired relay function ALARM CONTROL or WASH gt Next select the PARAMETER Sensor 1 Sensor 2 Temperature 1 or Temperature 2 that drives the relay if either Alarm or Control is selected If Wash is selected the relay operates as a timer Navigation from the Measure Menu when this feature is installed 1 Press MENU to display the Main Menu 2 Scroll with the UP DOWN arrows to view RELAY A or RELAY B 3 Press ENTER to select the desired relay 4 Scroll with the UP DOWN arrows to view FUNCTION 5 Press ENTER to select Function and use the UP DOWN arrows to select Alarm Control or Wash 6 Press ENTER to select Alarm Control or Wash Press ESC to leave the setting unchanged Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 69 7 Scroll with the UP DOWN arrows to SET PARAMETER unless Wash was selected 8 Press ENTER to select SET PARAMETER and use the UP DOWN arrows to select SENSOR or TEMPERATURE to drive the relay 9 Press ENTER to select Sensor or Temperature Press ESC to leave the setting unchanged 10 Scroll with the UP DOWN arrows to SET ACTIVATION 11 Press ENTER to select SET ACTIVATION and use the UP DOWN arrows to scroll the list of activation options Select an option with the ENTER key Edit the selected option with the UP DOWN arrows Press ENTER to select the edited option or press ESC to leave the
21. is mounted to a ee greii wall or plate with 8 or M4 screws through the mounting holes as shown aos 06 Seven Pg11 16 Conduit breakouts are available for cord grips or conduit hardware Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 10 2 4 2 12 DIN Panel Mount PN AV38 1 2DIN A 2 DIN panel mount bezel and gasket can be ordered to fit the AV38 as shown The AV38 display is tightened down to the bezel using the four captured screws in the AV38 The bezel is then mounted to a DIN square opening with the hardware shown in the figure below 1 4 20 UNC NUTS 4 1 4 LOCK WASHERS 4X h 2 P SUPPORTS 2X 0 gt 14 WASHERS 4X IP 2 PANEL O o gt GASKET P 1 2 DIN f ADAPTER 4 6 PANEL WITH 4 75 TO 5 40 SQ CUT QUT Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 11 2 4 3 14 DIN Panel Mount PN AV38 1 4DIN The AV38 Display can be mounted directly to a DIN panel opening using the captive mounting screws in the AV38 and the Y DIN supports as illustrated in the figure below A DIN bezel gasket can be provided to ensure a NEMA 4X seal on the panel QUARTER DIN SUPPORT ZA PANEL WITH 3 5 SQ CUT OUT Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 12 2 5 Wiring DC Powered Version AV38 XBXXX1 The DC powered AV38 Display comes with two terminal blocks wh
22. or an authorized representative with any questions Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 6 1 2 Intended use The Thermo Scientific AquaSensors AV38 Local Display is used to monitor configure calibrate and diagnose any DataStick measurement system configured with a Modbus communications adapter in accordance with the technical product specifications in Section 2 of this manual Data is reported through a scalable 4 20 milliamp analog output or through one of several digital protocols Options include a second analog output and up to 2 relays PID control is a standard function when pH or conductivity measurements are connected Hypochlorous acid HOCI and free chlorine concentrations are automatically available when a chlorine sensor is connected Any other use or use not mentioned here that is incompatible with the technical specifications is deemed inappropriate The operator is solely responsible for any damage arising from such use Other prerequisites for appropriate use include Observing the instructions notes and requirements set out in this instruction manual Observing all local safety regulations Observing all warnings and cautions in the documentation regarding all products used in this measurement system including the sensor mounting hardware AV38 electronics and cabling Observing the prescribed environmental and operational conditions e Observing chemical compatibility wit
23. source of the pH value in the chlorine calculation If a pH DataStick is detected by the AV38 this selection becomes available If a pH DataStick is detected by the AV38 then pH DataStick can also be selected When this is done the measured pH value is used to calculate the free chlorine concentration Note If a pH DataStick is used to calculate the free chlorine concentration the sensor units must be pH If they re not then the concentration calculation will be done using the value entered through the Fixed pH Value screen If the free chlorine concentration measured by the AV38 is not as expected please check to see if this is the case PH Source Fixed pH Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 60 The Fixed pH Value screen provides a way to set a fixed pH value that can be used to calculate free chlorine from the HOCI measurement This single fixed entry can be used when a pH DataStick is not present or when the process pH is tightly controlled to a known value The default value is 7 00 pH If the sensor units on the pH DataStick are changed from pH to mV the AV38 s pH Source will automatically be changed to Fixed pH The same thing will happen if the pH DataStick is exchanged for a DataStick of a different type DO for instance This is because the calculation of the free chlorine concentration requires a pH value It is not possible to enter Gateway mode using the RIGHT
24. third terminal block is present y O Universal Display Max Operating Temp 60 C Di f l o o 2 bj g o o yu 9 AC powered AV38 wiring 1 2 3 4 Analog Outputs 1 and 2 are wired to Pins 1 2 and 3 as shown above The DataStick s are wired to Pins 8 through 12 Relays A and B are wired to Pins A F 100 240 VAC 50 60 Hz power is wired to the wider spaced Pins G H and J Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 17 The AC powered AV38 wiring will vary depending on the options provided Model AV38 CB0C2 Two 4 20mA Analog Outputs two Relays and No Host Comms Terminal AC Powered AV38 Wiring Current Loop 1 Power provided by AV38 Current Loop Current Loop 2 Power provided by AV38 Red wire from DataStick Black wire from DataStick White wire from DataStick Blue wire from DataStick Shield wire from DataStick Relay B Normally Closed Relay B Common Relay B Normally Open Relay A Normally Closed Relay A Common Relay A Normally Open 100 240 VAC 50 60 Hz Neutral Earth Ground 2 6 Measure Screen Overview The AV38 user interface is shown in Figure 1 It consists of an LCD module that contains two lines of 16 alphanumeric characters and seven keys to navigate the menu The contrast of the LCD module can be adjusted by simultaneously pressing the ESC and UP arrow keys for more contrast or the ESC and DOWN arrow keys for less
25. to either terminal Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 14 DC Powered Legacy Version AV38 XBXXX The DC powered legacy version of the AV38 Display comes with a single terminal block when ordered with one 4 20mA analog output and or host communications If a second analog output or relays are ordered a second terminal block is present AV38 Terminals 1 Output and Host Comms AV38 Terminals 2 Outputs and Relays A Zax e a 4 D id HOST Network 1 MODBUS RTU DataStick Network 2 Modbus RTU ataStick RTU Model AV38 A4 Power 24 VDC 0 25 Amp Max Operating Temperature 60 C HBA o at N MOL AV3SBB4A SN 01697 www AquaSensors com MOL AV33CB4B Ss 01739 www AquaSensors com Q Figure 2 1 AV38 Wiring One or Two Terminal Blocks Depending on Features In either configuration 1 24 VDC Power is wired to Pins 1 and 2 as shown above The power supply should be rated to deliver 0 25 amps when the AV38 is used with one DataStick 2 The DataStick s are wired to Pins 6 through 10 3 Analog Output 1 is wired to Pins 11 and 12 4 When Host Comms are used they are wired to Pins 3 4 and 5 Be sure that the communications ground is at the same potential as the 24 VDC power ground Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 15 The DC powered AV38 wiring will vary depending on the options provided Model AV38 BB0A1 One 4 20mA
26. 19 The temperature calibration value is presented for editing ooooonoonncnnonnonnooncononononononnnonncononnnos 43 Figure 20 The complete configure menu for conductivity c c ccccstsoreeeccsessesserssscseatsoverceasessenesnsseaeasersererensiacs 47 Figure 21 The complete configure menu fOr PA sisi 47 Figure 22 The complete configure menu for D O Ozone and Chlorine o ocoooncnocniccnocnccnncnonononononncononncnncnnninos 47 Figure 23 The complete configure menu for UI O ROA 47 Figure 24 The complete Data stick Comms menu a 57 Figure 25 The wash cycle showing when the relay is activated and the outputs are held o oooooocnonocccccoccccccncnncnnos 72 TABLE OF TABLES Table 12 AV38 DASS part numbel Sern ena oe eee tide Ba Se es 9 Tabe 2 MGI MENU TIS cosa sess kha ics ga la ta te ac Aaa dele oan 21 Table CAMAS e de ea 26 Table 4 The Configure Me neviisjpaldajudand ice A 46 Table 5 A typical concentration table with four points oooooconococonoconnnonnonanononoconnonannonr nono nccnncnnnnonnnos 50 Table 6 Record the table values here before entering them cescsssssesssssssssscssecssscssesseseeessecsasceteeseesteeenees 51 VADER eek te a Ras a lan la ta hE eS ha 55 Table 8 The default concentration LADO ss acess ete ray vay te Gel dt 55 Table 9 Host protocol vs user s MM OA 56 Table 10 PI Controller f nctions ODA ias 67 Table 11 PID Controller functions for CAN a ao a
27. N arrow keys After the calibration value is adjusted the enter key is pressed to calibrate the DataStick as shown in Figure 15 1 Point Sample 4 00 pH GT Figure 15 Entering the pH calibration value After the first calibration point has been stored the user is prompted to place the sensor in the second sample The sensor should be rinsed in DI water and wiped clean before it is placed in the second sample 7 09 pH In 2nd solution MENU ESC a Lv After the sensor is placed in the second sample the ENTER key is pressed to start the calibration of the second point 2 Point Sample Calibrating Ea Ea After the second calibration point has been stored the user is prompted to confirm a successful calibration procedure MENU ESC ENTER p i E 2 Point Sample Confirm cal OK gt ie MENU ESC ENTER p 4 y Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 38 When the enter key is pressed to acknowledge that the calibration was successful the analog output is placed into active mode and the monitoring of sensor and temperature values is resumed This successfully completes the 2 point sample calibration procedure 7 00 pH AB 30 8 C DS1 6 AA If an error occurs during calibration the reason for the failure is shown 2 Point Sample Not stable ET 4 6 Zero Calibrate Sensor Type Conductivity DO Ozone Drinking Water Turbidity Raw Water Turb
28. S1 6 MENU ESC a Ea If an error occurs during calibration that causes the procedure to fail the reason for the failure is shown on the screen 1 Point Buffer Calibrating gt Ea MENU ESC ENTER p i E 2 Point Buffer Buffer not found _ Ea L MENU ESC ENTER p Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 29 When the enter key is pressed the calibrate menu is displayed The analog output remains in hold mode This ends the 1 Point Buffer calibration procedure The user has the option of repeating the procedure if desired Calibrate 1 Point Buffer FAA 4 2 2 Point Buffer Calibration Sensor Type pH Find the 2 Point Buffer calibration in the CALIBRATE menu using the UP DOWN arrows Press ENTER to initiate this calibration process Once the calibration has been initiated it can be aborted by pressing the escape key before the process is completed Calibrate 2 Point Buffer AA A The sensor should be rinsed in DI water and wiped clean to remove any process solution that would otherwise contaminate the buffer solution When the 2 point buffer calibration procedure is started the analog output is placed into hold mode and the user is prompted to place the sensor in the first buffer solution The sensor value is dynamically updated during this step as shown in 7 02 pH In lst solution GT Figure 9 The pH sensor value is dynamically u
29. Sensors AV38 Local Display and Controller User Guide 31 When the enter key is pressed to acknowledge that the calibration was successful the analog output is placed into active mode and the monitoring of sensor and temperature values is resumed This successfully completes the 2 point buffer calibration procedure 7 01 pH AB 22 O DS1 6 ES Ex If an error occurs during calibration that causes the procedure to fail the reason for the failure is shown on the screen MENU ESC 2 Point Buffer Calibrating gt a MENU ESC ENTER p i E 2 Point Buffer Buffer not found MENU ESC eel Es When the enter key is pressed the calibrate menu is displayed The analog output remains in hold mode This ends the 2 point buffer calibration procedure The user has the option of repeating the procedure if desired Calibrate 2 Point Buffer gt Ea p i E MENU ESC ENTER Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 32 4 3 Aborted Calibration Sensor Type All If the ESC key is pressed while calibration is in progress the procedure is aborted A calibration cannot be aborted if the calibration process has completed 2 Point Buffer calibrating gt L MENU ESC ENTER g 3 E 2 Point Buffer Aborting gt L After the calibration procedure has been aborted the user is prompted to confirm the abort MENU ESC ENTER
30. Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide Thermo ROSS and the COIL trade dress are trademarks of Thermo Fisher Scientific Inc U S patent 6 793 787 AQUAfast Cahn ionplus KNIpHE No Cal ORION perpHect PerpHecT PerpHecTion pHISA pHuture Pure Water Sage Sensing the Future SensorLink ROSS ROSS Ultra Sure Flow Titrator PLUS and TURBO2 are registered trademarks of Thermo Fisher 1 888 pHAX ION A All in One Aplus AQUAsnap AssuredAccuracy AUTO BAR AUTO CAL AUTO DISPENSER Auto ID AUTO LOG AUTO READ AUTO STIR Auto Test BOD AutoEZ Cable Free CERTI CAL CISA DataCOLLECT DataPLUS digital LogR DirectCal DuraProbe Environmental Product Authority Extra Easy Extra Value FAST QC GAP GLPcal GLPcheck GLPdoc ISEasy KAP LabConnect LogR Low Maintenance Triode Minimum Stir Requirement MSR NISS One Touch One Touch Calibration One Touch Measurement Optimum Results Orion Star Pentrode pHuture MMS pHuture Pentrode pHuture Quatrode pHuture Triode Quatrode QuiKcheK rf link ROSS Resolution SAOB SMART AVERAGING Smart CheK SMART STABILITY Stacked Star Navigator 21 Stat Face The Enhanced Lab ThermaSense Triode TRIUMpH Unbreakable pH Universal Access are trademarks of Thermo Fisher Guaranteed Success and The Technical Edge are service marks of Thermo Fisher PerpHecT meters are protected by U S patent 6 168 707 PerpHecT ROSS electrodes are protected by U
31. air not authorized by Thermo Fisher Scientific 3 Any product not used in accordance with the instructions furnished by Thermo Fisher Scientific 4 Damage caused by acts of God natural disaster acts of war declared or undeclared acts of terrorism work actions or acts of any governmental jurisdiction 5 Freight charges to return merchandise to Thermo Fisher Scientific 6 Travel fees associated with on site warranty repair This warranty is the sole expressed warranty made by Thermo Fisher Scientific in connection with its products All other warranties whether expressed or implied including without limitation the warranties of merchantability and fitness for a particular purpose are expressly disclaimed The liability of Thermo Fisher Scientific shall be limited to the cost of the item giving rise to the claim In no event shall Thermo Fisher Scientific be liable for incidental or consequential damages This warranty is the sole and complete warranty for Thermo Fisher Scientific No person is authorized to make any warranties or representations on behalf of Thermo Fisher Scientific Thermo Fisher Scientific reserves the right to change or modify this warranty at any time Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 76 17 TERMS AND CONDITIONS Terms and Conditions of Sale The following terms and conditions will be presumed acceptable unless changes are made in writing and accepted by both p
32. alues Calibrate and test the analog output with a milliammeter Analog Output 2 option Set 4 mA and 20 mA values Calibrate and test the current output with a milliammeter PID Controller Set up PID control functions for analog outputs Available with pH or Conductivity Relay A option Set timer alarm or control functions Optional Relay B option Set timer alarm or control functions Optional Diagnose pH DataStick only Indicates the pH Sensor Head slope Help Indicates AV38 firmware version Reset AV38 Resets AV38 configuration to default analog output relay and PID settings Exit Returns to the measure screen Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 21 MAIN MENU NAVIGATION gt Enter the Main Menu by pressing the MENU key gt Scroll the listing with the UP DOWN arrow keys gt To select an item press the ENTER key If there is no keypad activity for 15 minutes and the display is left on a menu screen the measure screen will automatically re appear The exception to this rule is when the manual mode screen in the PID controller is displayed In this case there will be no function time out The AV38 remembers the last menu option used and will return to that menu option when re entering the main menu from the measure screen The list order is always the same so if pressing MENU displays analog output and the desired operation is calibration the UP arrow will be used to move to t
33. arties in a reasonable amount of time Any standard or boilerplate terms and conditions supplied with a written purchase order will not be applicable unless accepted in writing by both parties Quotations All quotations shall be in writing Written quotations shall be valid for 30 days from the date issued Verbal quotations or price lists are not valid Pricing All pricing is in US Dollars Thermo Fisher Scientific reserves the right to change pricing without notice Terms Payment terms are net 30 days from the date of invoice with approved credit Thermo Fisher Scientific reserves the right to deny credit or revoke previously extended credit Past due accounts are subject to interest charges Other acceptable payment terms are cash certified check money order credit card or letter of credit confirmed by any United States of America bank Other payment terms are not valid unless accepted in writing Sales taxes shall be included on the invoice unless a valid tax exemption certificate is supplied Return Material Authorization Contact Thermo Fisher Scientific Customer Service for a Return Material Authorization RMA number Items returned without an RMA number will be rejected All returned merchandise must be in unused resalable condition and must not be contaminated with hazardous materials Cancelled orders must be returned within 30 days of the date on the invoice and shall be subject to expenses incurred that may include but a
34. ates call 1 800 225 1480 or fax 978 232 6015 Outside the United States call 978 232 6000 or fax 978 232 6031 In Europe the Middle East and Africa contact your local authorized dealer Visit us on the web at www thermo com processwater Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide Safety Information The Thermo Scientific AquaSensors AV38 Local Display shall be installed and operated only in the manner specified Only a skilled trained or authorized person should carry out installation setup and operation of the sensor system Before using the display make sure that the sensor cable is connected as specified Failure to do so may result in permanent damage to the system of its components Protection against electric shock will be achieved only by observance of the corresponding installation rules Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 2 TABLE OF CONTENTS 1 INTRODUCTION aesir naa a a a a a E S a a a s s aa aos n S eas aas 6 1 1 GENERAL INFORMATION ranieri aaan A ai 6 1 2 INTENDED USE e AE tes a oO a e Atal dolor al tari bs ad aos at 7 2 PRODUCT DESCRIPTION viicecicccccsscccsccseccssccsccotsteccsctecesseesccsussscteceusssecesesucvsceuscusvsssesvecevsscesvessuaues 8 2 1 SYSTEMOVERVIE A de a ol E EEA da 8 2 2 BASE PARTNUMBERS ida 9 2 3 SENSOR MAPPING hu ocurra sd a A DO On e e citas 9 2 4 MOUNTINC AFTE E AA AE it etlctbuetatesial eaeks 10 29 WIRIN Go ete
35. be entered or the choice to be made will be surrounded by parentheses The name of the value being entered or choice being made will appear on the upper line of the screen and be appended with a question mark 7 to indicate that the user is to provide input The RIGHT arrow symbol gt on the screen indicates that downward navigation through the menu structure is possible The LEFT arrow symbol lt on the screen indicates that upward navigation through the menu structure is possible Calibration and configuration of a specific sensor is accessed by pressing the MENU key from the measure screen for that sensor Main menu items are listed as follows Table 2 Main menu items Calibrate Sensor calibration choices are automatically available for installed sensor head Station Number Enter the MENU from the measure display of interest station in lower right Configure Configuration choices are automatically available for the installed sensor head Station Number Enter the MENU from the measure display of interest station in lower right DataStick Comms Set the station address baud rate and parity for the Modbus DataStick of interest Chlorine Configure Select free chlorine or HOCL concentration for output Select pH compensation fixed or active Only when Chlorine DataStick Present Hold Outputs Holds the 4 20 mA and Relay outputs Analog Output 1 Set 4 mA and 20 mA v
36. ccccttcsccccscsccscssonscesssusacecsstoseconacsccnccboosscocousccsssssoscsouscoccscsbeescsousucecesssucdass 46 5 1 MAN CONFIGURE MENUS a a petierl Bilin eae oer iin ed A NG A eee ee 47 5 2 NAVIGATING SENSOR FILTER CONFIGURATION c cccccssesesssssesssssssssssseseseseseseseseseseseseseseseseseseseseeeseeesseseece 48 5 3 NAVIGATING THE USER ENTERED CONCENTRATION TABLE SCREENS ccccsceseseesesessscssececscecscsceseseseeeeese 50 HOST COMMUNICATIONS sassccccccascccsccosscccccstecssctestcscetessscsccustcsccsusvctestectcscucessccsccuctescucuscctesductctes 56 DATASTICK COMMUNICATIONS SETUDBP sccssssssssssssssssssssssssssssssssssssssssssssssssssssssssseseses 57 7 1 SETTING DATASTICK STATION NUMBER ccccccccsccsccecsssesssescesccscsssesssessssccesessccssesssssesceesessesssecescsesesssaseesecs 57 7 2 SETTING DATA TYPE a re er aT ed 58 7 3 SETTING DATASTICK BAUD RATE canten bondi oh pncgdeaeenedeters EEEE ATs 59 7 4 SETTING DATASTIEK PARITY ut A E A lA a A aia 59 CHLORINE CONFIGURATION MENU occcococcconononononononononononononononononononononononononoconoconoconoconeconenonos 60 HOLD OUTPUTS SCREEN eicccccscscsscccccccetccsotscscccocssstssscsssscsecsencccecscssesccssssstecssssesecsensesecsssccsecsescecses 62 10 ANALOG OUTPUTS wicistccesstecdsscesssccescscsdsaceseccsesdescdsdessssccesdsssdsesebetccceddscdebedseccsesdscedsestbetessedssstedsscdies 63 10 1 ASSIGNING 4 MA AND 20 MA PARAMETER VALUES cccccssesessessscecececscs
37. csssesesescsesesesesesesesesesesesseesceeecesecece 63 10 2 CALIBRATING ANALOG OUTPUT CURRENT cccccscsscscccccsssessscscsscescsssesseessssccscsesesesessssccsssesesesessseseseeeeeeaees 65 11 PID CONTROLLER MENU satictscdieicscccicdstecsdecsssccecislacdbesctesescietevecs cacceeseetavecetavete detacedecacavatecceetetece 67 Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 3 12 12 1 12 2 12 3 13 14 15 16 17 CONTROL RELAY ACTIVATION aaia TEE EE E E AAEE A AEE E AAA A 70 ALARM RELAY ACTIVATION reic irren rir in Eene eo EAI E EEA Tr EE EA EERO REE AE A D AEREA 71 WASE RELAY ACTIVATION 2000 A AAA AAA A AAA oan 72 TERMS AND CONDITIONS ssisesscesccstectsindstecaseccecutistes cloin caian c oasis 77 Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 4 TABLE OF FIGURES Figure 1 The elements of the AV38 user interface ii ai ae 18 Figure 2 The H indicates that hold mode is active serrana Is 19 Figure 3 The initial measure screen when the DataStick is absent oonnonionnonicinonicincanacccnonanononacononncnnonncnncnnninos 20 Figure 4 The initial measure screen when the Sensor Head is absent oooocoooccicocociconccoconccananononacononccnnoncconononnnos 20 Figure 5 The complete calibrate menu for pH sensors ccsccesccesecssestseesesescesscssecscessescesseceasceeesseestesseesseenass 27 Figure 6 The complete calibrate menu for D O SOMSOMS
38. d configured if the MENU key is pressed while the screen shows DS2 7 The Gateway Mode screen shows a bracketed number in the lower right corner to indicate which DataStick is being accessed by the host The MENU key does not present menu functions while in the Gateway mode When the AV38 is not equipped with host communications hardware the Gateway mode is not available The two measure screens are accessed with the RIGHT and LEFT arrow keys 991 3 pS cm AB 7 57 pH AB 30 8 C DS1 1 30 8 C DS2 3 When a sensor head of the same type is replaced in a DataStick analog output and relay settings are maintained If a sensor head of a new type is installed analog output and relay settings are automatically set to default conditions The example in Figure 2 illustrates HOLD MODE as indicated in the measure screen The H in front of the DS1 6 in the lower right corner of the display indicates that outputs and relays are on hold 991 3 pS cm AB 30 8 C HDS1 6 Figure 2 The H indicates that hold mode is active Figure 2 the measure screen also shows the sensor value sensor units temperature value and temperature units Relays A and B are activated The measurements are on hold and the Modbus station address for the DataStick is 6 Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 19 When the DataStick is absent the display will read DataStick Absent as shown in Figure 3 I
39. e a EN Exit gt Figure 5 The complete calibrate menu for pH sensors For Dissolved Oxygen Sensors calibration methods are Air 1 Point Sample and Temperature as shown in Figure 6 For Chlorine and Ozone sensors calibration methods are 1 Point Sample and Temperature Calibrate Air 1 Point Sample gt Temperature Exit E E7 Figure 6 The complete calibrate menu for D O sensors For Conductivity and Turbidity sensors calibration methods are 1 Point Sample Zero and Temperature as shown in Figure 7 Calibrate 1 Point Sample PbZero gt Temperature Exit EE eq ey Figure 7 The complete calibrate menu for conductivity and turbidity sensors ORP sensors have only the 1 Point Sample calibration method and Temperature calibration Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 27 4 1 1 Point Buffer Calibration Sensor Type pH Find the 1 Point Buffer calibration in the CALIBRATE menu using the UP DOWN arrows Press ENTER to initiate this calibration process Once the calibration has been initiated it can be aborted by pressing the escape key before the process is completed Calibrate 1 Point Buffer AA Y The sensor should be rinsed in DI water and wiped clean to remove any process solution that would otherwise contaminate the buffer solution When the 1 point buffer calibration procedure is started the analog output is placed into hold mode and the user is promp
40. e measure screen to Gateway using the LEFT and RIGHT arrow keys This disables all output and relay functions and allows the host computer to access all DataSticks connected to the AV38 for remote measurement calibration configuration and diagnostics It is not possible to enter Gateway mode using the RIGHT or LEFT arrow keys when the Measurement is ppmFCL2 free chlorine concentration This is because the AV38 needs to continuously acquire data from the chlorine DataStick and if necessary the pH DataStick in order to perform the free chlorine concentration calculation To enter Gateway mode in this case first set the Chlorine Config Measurement to ppmHOCL If a pH compensated free chlorine concentration measurement is required the host will have to perform the calculation Analyzer Mode It is also possible to communicate digitally with the DataSticks in the Analyzer mode where analog outputs and relays remain active In this mode it is possible for the host computer to communicate only with the two DataSticks being displayed locally i e mapped to the AV38 s two channels Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 56 7 DATASTICK COMMUNICATIONS SETUP Up to 247 DataSticks can be connected to a single AV38 Any two of them can be selected for local display analog output reporting and relay control The DataStick station number that is selected is displayed in the lower right corner of the measu
41. e seven keys for menu navigation The MENU key is used to toggle between the menu and the measure screen Pressing the MENU key provides options for calibration configuration communications analog outputs and relays 2 2 Base Part Numbers Part numbers can be easily decoded to give descriptive information about included functions The part number is printed on the AV38 terminal block overlay where detailed information is provided on the host communications protocols The base part number and firmware version are displayed at power up and in the HELP menu For example if the display shows AV38 CBYC V4 00 the AV38 has two analog outputs two relays and host communications and is operating with version 4 00 firmware Base part numbers are decoded as follows Table 1 AV38 base part numbers Base Part Analog Relays Host Comms Number a s Indicated by second to last character in base part number AV38BB0A Yes None AV38BB Y A Yes Y 1 RS 232 ASCII Y 4 Modbus RTU Y 5 DeviceNet Y 7 EtherNet IP Modbus TCP PCCC AV38CB0C 2 2 Yes None AV38CB Y C 2 2 Yes Y 1 RS 232 ASCII Y 4 Modbus RTU Y 5 DeviceNet Y 7 EtherNet IP Modbus TCP PCCC Profibus DPV0 V1 Host communications can be obtained using an AV38 with Modbus RTU Host communications Y 4 connected to a Profibus to DataStick Communications Adapter CA26R 2 3 Sensor Mapping Multiple DataStick sensors can be connected to a s
42. ected DataStick is configured for pH contacting conductivity or toroidal conductivity Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 68 12 RELAYS Two Form C relays with normally open and normally closed contacts are available with the AV38 When relay Ais energized or activated an A will appear in the upper right corner of the measure display If relay B is energized a B will appear as shown 991 3 us cm AB 30 58 C DS1 6 When a sensor head of the same type is replaced in a DataStick analog output and relay settings are maintained If a sensor head of a new type is installed analog output and relay settings are automatically set to default conditions The selectable features in the relay menus are the same regardless of the type of sensor head that is installed in the DataStick While the AV38 is being used to calibrate the DataStick the relay is held in its present state Use the UP DOWN arrows to scroll the relay option list Press ENTER to select Press ESC to move up a level in the menu system Relay A PbSet Function PbSet Parameter PbSet Activation Exit The SET FUNCTION menu is used to configure a relay for ALARM CONTROL or WASH functions When ALARM is selected the relay activation is determined by low and high limits of the chosen measured parameter When CONTROL is selected the relay activation is determined by a single set point WASH is a timer function and
43. en ordered with one or two 4 20mA analog outputs and or host communications If relays are ordered a third terminal block is present The figure below shows an AV38 with the DeviceNet host communications option present HOST DeviceNet x1 4 vol 5 e 6 7 j DataStic 4 Modbus RTU En MIn o o DC powered AV38 with DeviceNet host comms wiring The current loops analog outputs should be wired as follows Terminal Current Loop 1 Power provided by AV38 Current Loop 1 Current Loop 2 Current Loop 2 Power provided by AV38 Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 13 The cable from the DataStick should be wired as follows Terminal DC Powered AV38 with DeviceNet Wiring Red wire from DataStick Black wire from DataStick White wire from DataStick Blue wire from DataStick Clear wire from DataStick Ground from DeviceNet Power Supply Black CAN_H White CAN_L Blue Q 24VDC from DeviceNet Power Supply Red The relays should be wired as follows Terminal DC Powered AV38 with DeviceNet Wiring Relay B Normally Closed Contact Relay B Common Relay B Normally Open Contact Relay A Normally Closed Contact Relay A Common Relay A Normally Open Contact 1 Terminal 4 Ground Black is electrically the same as terminal P GND so the ground from the DeviceNet power supply can be connected
44. ently decreasing and never increasing in value Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 51 Entering the Concentration Table The concentration table editing screen can be reached by navigating to the Configure menu scrolling down to the Conc Table item and then pressing Enter Configure PbConc Table When the Conc Table screen is first entered all ten points in the table are read While the points are being read the screen counts down from 10 to 1 Conc Table Please wait 6 ES E After all ten points have been read the conductivity coordinate for the first point is shown MENU ESC Point 1 X Data gt 0 0 pS cm EA To view the corresponding concentration coordinate press the RIGHT arrow key Point 1 Y Data lt 0 00 La fi Ea MENU ESC ENTER p fl D Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 52 To view the second point in the table press the DOWN arrow key Point 2 Y Data lt 99 99 A All of the points in the table can be reviewed by using the UP DOWN LEFT and RIGHT arrow keys To edit a coordinate navigate to the desired coordinate using the UP DOWN LEFT and RIGHT arrow keys and press ENTER The present value of the coordinate will appear within parentheses The parentheses indicate that the value can be edited Point 3 X Value 0 0 pS cm Use the UP DOWN LEFT and RIGHT arrow keys to cha
45. f the sensor is wired correctly and the DataStick Absent message appears be sure that the DataStick Sensor has the correct station number as indicated by the number in the lower right corner of the measure screen If that is correct also check that baud rate and parity are set up correctly in the DataStick DataStick o Absent DS1 6 E A Figure 3 The initial measure screen when the DataStick is absent When the sensor head is absent the condition will be indicated by Sensor Head Absent on the measure screen as shown in Figure 4 Sensor Head NENG Absent DS1 6 EEE Ea A Figure 4 The initial measure screen when the Sensor Head is absent Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 20 3 MENU STRUCTURE AND NAVIGATION The Main Menu is accessed by pressing the MENU key when the AV38 is in Analyzer Mode measure screen The menu structure is navigated using ENTER UP DOWN arrows and ESC keys gt Use the UP DOWN arrow keys to scroll through the list of Menu options gt Use the ENTER key to select an option gt Use the ESC key to move up in the structure The end of the list of menu options is always the EXIT function Pressing ENTER on the EXIT screen will bring up the MEASURE screen The symbol is used to indicate that the user is in the menu structure At the leaf of each branch of the menu structure the user is able to enter a value or make a choice The value to
46. formation about the DataStick measurement system Enter the Menu with the MENU key Scroll the menu options with the UP DOWN arrows The Diagnose menu is near the bottom of the list but appears only if a pH sensor head is installed in the DataStick body Main Menu Diagnose eal Ea MENU ESC ENTER p E E Press ENTER again to select the Sensor Slope menu Diagnose PSensor Slope Ei MENU ESC ENTER p E View the pH DataStick s sensor slope Sensor Slope 59 7 mV pH MENU ESC EN K Exit the screen by pressing ENTER or ESC If the DataStick with which the AV38 is communicating does not support this feature the AV38 will indicate that the information is not available Sensor Slope Not available AA E DataSticks with D3 22 or later firmware support this feature Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 74 14 HELP MENU The help menu displays the product name and the firmware version of the AV38 Enter the Menu with the MENU key Scroll the menu options with the UP DOWN arrows The Help menu is second to last Press ENTER to select the HELP menu Main Menu gt Help EE Ea p B E MENU ESC ENTER Press ENTER again to select the About menu gt About lan 10 H to Ea MENU ESC ENTER p U A y View the AV38 firmware version number AV38 BBOA V4 00 gt a o a EN gt
47. g or ESC to leave a setting unchanged Note that in the Manual Mode the present pH value is displayed in the upper line of the screen and the Control Adjustment is made in the lower line Each of the PID controller options used to configure and tune the loop is shown below for a sensor type of contacting or electrodeless conductivity Table 11 PID Controller functions for conductivity PID Function Edit Range Default Setting Set Algorithm ISA or Velocity ISA Set Input Sensor 1 or Sensor 2 Sensor 1 DS1 Set Full Scale 0 to 5000 uS cm 2000 uS cm Do not change Set Zero Scale 0 to 5000 uS cm 0 uS cm Do not change Set Setpoint 0 to 5000 uS cm 1000 uS cm Set Proportional Gain 99 99 to 99 99 0 00 is direct action is reverse action Set Integral Gain 0 00 to 50 00 reps min 0 00 reps min Set Derivative Gain 0 00 to 10 00 seconds 0 00 seconds Set Transit Times 0 to 9999 seconds 0 seconds Set Manual Reset 0 0 to 100 0 0 Manual Mode Control 0 0 to 100 0 0 Process value is displayed When the configuration and tuning settings are made select PID as the Parameter for Analog Output 1 or Analog Output 2 Integral gain can be disabled by entering 0 00 to provide only PD controller action To quickly get to the PID controller set point for fine tuning press the ENTER and RIGHT ARROW KEYS at the same time from a measure screen This feature is only present with the conn
48. h all wetted materials 1 3 Safety Instructions The AV38 Local Display should be installed and operated only by personnel familiar with the sensor and qualified for such work A defective AV38 should be returned to Thermo Fisher Scientific for repair or replacement Contact Thermo Fisher Scientific to obtain a Return Material Authorization RMA number No modifications to the AV38 are allowed The manufacturer supplier accepts no responsibility for damage caused by unauthorized modifications The risk is borne entirely by the user 1 4 Removal from Service Correct Disposal of the AV38 Local Displa Removal from Service e Disconnect the cable wiring from the controller terminal block e Remove the AV38 from the mounting hardware Correct Disposal of Unit When the AV38 is taken out of service observe the local environmental regulations for correct disposal Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 7 2 PRODUCT DESCRIPTION 2 1 System Overview The AV38 is a universal display interface for DataStick measurement systems The enclosure has 4 DIN dimensions for easy mounting and is rated NEMA 4X for outdoor use It uses a liquid crystal display LCD with ooo 96 a high contrast backlight for best readability and is powered with 24 volts DC A line powered version is also available Up to 247 DataStick measurement systems can be connected to a single AV38 on a Modbus RTU commun
49. h cycle repeats each time the interval counter expires Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 72 e The wash cycle is started if the Interval value is changed to a value greater than 0 e The wash cycle is stopped if the Interval value is changed to 0 e If the Duration is longer than the Interval the wash relay will remain activated e If the Off Delay is longer than the Interval the outputs will remain in hold mode When the menu key is pressed the state of the wash relays is recorded before they are de activated and the interval duration and off delay counters are suspended When a measure screen is active once again the state of the wash relays is restored and the counters resume counting If the Interval is changed the new value will take effect the next time the interval counter expires If the Duration is changed the new value will take effect the next time the interval counter expires If the Off Delay is changed the new value will take effect the next time the duration counter expires If the wash cycle is in the duration portion and the user navigates to the analog output calibration screen the analog outputs will be switched to active mode Upon leaving the analog output calibration screen the analog outputs will be returned to hold mode Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 73 13 DIAGNOSE MENU The diagnose menu displays diagnostic in
50. he Calibrate menu Select CALIBRATE with the ENTER key gt To calibrate the main parameter or temperature of the sensor previously displayed in the measure T D screen In this example the 1 in the lower right of the display indicates the sensor at Modbus Station 1 E Ea Press the DOWN ARROW for next selection A Select CONFIGURE with the ENTER key Configure 1 gt To display or change filters units of measure constants tables and buffer standards of the sensor a previously displayed in the measure screen In this example the 1 in the lower right of the display e a ES indicates the sensor at Modbus Station 1 KA Press the DOWN ARROW for next selection Select DATASTICK COMMS with the ENTER key gt To set up station address for the DataStick that is to be displayed in the AV38 measure screen lt gt Press the DOWN ARROW for next selection Ea Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 22 Select Chlorine Config with the ENTER Key Main Menu P Chlorine Config gt Set Measurement Free chlorine or HOCL E gt Set pH Source Fixed or active e surer lt gt gt Set Fixed pH Value Ee Press the DOWN Arrow for next selection Select Hold Outputs with the ENTER key Main Menu PHold Outputs gt Put outputs and relays on hold There is no timeout with this function esc a gt Press the DOWN ARROW for next se
51. ications network Up to two of the DataSticks connected can be mapped to Channel 1 or Channel AquaSensors 2 for direct local display calibration configuration and diagnosis All DataSticks can be accessed remotely when the host communications hardware is present The AV38 automatically recognizes the type of DataStick connected to it and provides the appropriate calibration configuration and diagnostic menus A 10 point user entered concentration table in the DataStick can be edited and used to convert measured conductivity into concentration PID control is a standard function when pH or conductivity DataSticks are connected Hypochlorous acid HOCI and free chlorine concentrations are automatically available when a chlorine sensor is connected The AV38 supports up to two 4 20 analog outputs two alarm control wash relays and network communications to a host computer The AV38 can operate in two different modes 1 Analyzer Mode Map up to two DataSticks to the display analog outputs and relays Switch the display between the two DataSticks using the RIGHT and LEFT arrow keys Access all DataSticks on the network for local calibration configuration or diagnostics using the menu system When host communications hardware is present a host computer can simultaneously be used to acquire data or remotely calibrate configure or diagnose the DataStick that is locally selected for display This mode is primarily used when analog
52. idity Suspended Solids The complete Calibrate menu for conductivity is shown in Figure 16 The same calibration sequence also applies to dissolved oxygen ozone drinking water turbidity raw water turbidity and suspended solids From the Calibrate menu use the UP DOWN arrows to display ZERO calibration Press ENTER to select Calibrate PZero 1 Point Sample PTemperature Exit CEBA A Figure 16 The complete calibrate menu for conductivity Be sure conductivity sensors are dry and suspended away from objects that could affect the measurement in air Press ENTER to initiate zero calibration 0 16 pS cm Sample in Air AA Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 39 A zero calibration may take some time as the zero must be calibrated over a wide dynamic range During this process the Calibrating message is shown in Figure 17 Zero Calibrating AA Figure 17 Zero is Calibrating When the zero calibration is complete the user will be asked to confirm the result with the ENTER key Zero Confirm cal OK cal Ea After pressing ENTER to confirm Calibration is okay the Measure screen will be displayed MENU ESC ENTER g E A 0 0005 pS cm AB L If an error occurs during calibration the reason for the failure is shown Hm w H MENU ESC ENTER p 3 E ZN O 0 tK o u F ro o p o MENU ESC ENTER p y g g Therm
53. ing to desired reading for two points separated by more than 2 pH units Changes span and offset pH 1 Point Buffer Automatically sets measured pH reading to closest buffer standard point Buffer standards are selected in the configuration menu Changes Offset 2 Point Buffer Automatically sets measured readings to closest buffer standard Two points separated by more than 2 pH units Buffer standards are selected in the configuration menu Changes span and offset Zero Set measured reading to zero Measured reading Conductivity Drinking Water must be close to zero Turbidity Raw Water Turbidity Dissolved Oxygen Ozone Suspended Solids Air Adjust measured reading to calculated reading of Dissolved Oxygen oxygen in air with pressure and_ salinity configuration settings as well as temperature reading Assumes sensor head is placed in air Temperature 1 Point Set measured reading to desired reading Changes offset Best done at high end of range All Exit Returns to the measure screen Calibration methods vary depending on which sensor head is connected to the DataStick Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 26 For pH sensors calibration methods are 1 point Buffer 2 Point Buffer 1 Point Sample 2 Point Sample and Temperature as shown in Figure 5 Calibrate 2 Point Buffer 1 Point Sample 2 Point Sample gt Temperatur
54. ingle AV38 and any number of them can be accessed directly via digital host communications To simplify local operation only two sensors can be mapped to the display the analog outputs and the relays at any one time This is done by selecting the appropriate station number for DataStick 1 DS1 and DataStick 2 DS2 Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 9 2 4 Mounting The AV38 can be mounted on a wall or panel mounted in 4 DIN or DIN forms A gasket is built into the display for a NEMA 4X seal Mounting instructions must be followed to maintain seals The AV38 can be pipe mounted and panel mounted with optional mounting hardware 2 4 1 Conduit Box Wall Mount The AV38 conduit box is mounted to a wall or plate with 8 or M4 screws through the mounting holes as shown There are seven Pg11 and Pg16 knockouts in the conduit box Two cord grips are supplied and it is recommended that they be used in the conduit holes on the bottom side of the box to prevent rain or moisture from settling at the conduit interface It is also possible to mount the box using interior breakouts Four plastic caps are provided to seal the interior mounting screws NEMA 4X ratings will be maintained only when the 8 mounting screws are used in the holes outside the conduit box gasket TO MAINTAIN THE NEMA 4X RATING THE ENCLOSURE MUST BE MOUNTED USING THE CORNER HOLES USE 8 OR M4 SCREWS AquaSensors AV38 conduit box
55. key is pressed and the user is presented with a calibration value for editing as shown in Figure 19 Please note that it is best to calibrate temperature with the sensor head in an aqueous solution Response time for calibration in air is slower Temperature 23 SE AAAA Figure 19 The temperature calibration value is presented for editing Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 43 When the value has been edited as desired the enter key is pressed and the calibration of the point is started Temperature 025 0 E gt Ea During this time the calibration procedure can be aborted by pressing the escape key See Section 4 3 for examples of an aborted calibration procedure MENU ESC ENTER p l E Temperature Calibrating gt L After the calibration point has been stored the user is prompted to confirm a successful calibration procedure MENU ESC ENTER p 3 E Temperature Confirm cal OK MENU ESC Ea When the enter key is pressed the analog output is placed into active mode and the monitoring of sensor and temperature values is resumed This successfully completes the temperature calibration procedure Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 44 If an error occurs during calibration that causes the procedure to fail the reason for the failure will be shown Temperature Calibrating
56. lect 4 7 10 pH or DIN Standard 1 09 4 65 pH 6 79 9 23 and 12 75 Cell Constant View or change Cell constant Two Electrode Conductivity Reference Temperature Conductivity reference temperature is set from Conductivity 0 C to 100 C Compensation Slope Slope is set from 0 to 9 9 C Conductivity TDS Conversion Factor A factor is set from 0 01 to 99 99 ppm uS cm to Conductivity convert measured conductivity to ppm Salinity Salinity compensation is set from 0 to D O Ozone 999 9 mS cm Pressure Pressure is set from 539 2 to 792 4 mmHg D O Ozone Concentration Table A 10 point concentration table is entered to Conductivity convert measured conductivity into concentration Exit Returns to the measure screen Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 46 5 1 Main Configure Menus Configure menus dynamically change depending on the DataStick sensor type connected Generally all configure screens allow viewing and editing values in parentheses Examples of top level menus for conductivity pH DO and Turbidity are shown below The complete configure menu for Conductivity is shown in Figure 20 Configure PSensor Filter PSensor Units gt Temp Filter gt Temp Units P Cell Constant PbReference Temp Comp Slope gt TDS Conv Factor P Conc Table Exit Figure 20 The complete configure menu for conductivity The complete configure menu for pH is shown in
57. lecting Alarm operates the relay in an alarm mode Activation entries specific to an Alarm relay are Low Alarm Sets the value at which the relay will activate in response to decreasing measured value High Alarm Sets the value at which the relay will activate in response to increasing measured value Low Deadband Sets the range in which the relay remains activated after the measured value increases above the low alarm value High Deadband Sets the range in which the relay remains activated after the measured value decreases below the high alarm value Off Delay Sets a time 0 999 seconds to delay the relay from normally de activating On Delay Sets a time 0 999 seconds to delay the relay from normally activating The On Delay and Off Delay settings may be used to help eliminate process overshoot when there are long process pipe runs or delays in mixing If ALARM is selected the following activation options can be programmed in the ACTIVATION menu Table 13 Alarm relay functions ALARM Function Edit Range Default Setting Set Low Alarm Min to Max scale Min scale Set High Alarm Min to Max scale Max scale Set Low Deadband Min to Max scale 0 Set High Deadband Min to Max scale 0 Set Off Delay 0 to 999 seconds 0 seconds Set On Delay 0 to 999 seconds 0 seconds Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 71 12 3 Wash Relay
58. lection Ly Select ANALOG OUTPUT 1 with the ENTER key Main Menu PAnalog Output 1 gt To set up 4 to 20 mA Analog Output for sensor temperature or PID ae lt gt Press the DOWN ARROW for next selection Select ANALOG OUTPUT 2 with the ENTER key gt Analog Output 2 gt To set up 4 to 20 mA Analog Output for sensor a temperature or PID mo Press the DOWN ARROW for next selection Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 23 E Select PID CONTROLLER with the ENTER key gt To set up ISA or Velocity Algorithm Full Scale Zero Scale Setpoint Proportion Gain Integral 2 Gain Derivative Gain Transit time manual reset EJES and m nual mode Standard function with pH or conductivity sensors Press the DOWN ARROW for next selection Select RELAY A with the ENTER key gt To set up Relay A for Alarm Control or Main Menu gt Relay A Wash functions a Available when relays hardware installed a Press the DOWN ARROW for next selection Select RELAY B with the ENTER key pRelay B gt To set up Relay B for Alarm Control or a Wash functions TER gt Available when relays hardware installed KA Press the DOWN ARROW for next selection Select DIAGNOSE with the ENTER key Main Menu PDiagnose gt To read the slope of the pH sensor head a This option appears only when a pH sensor gt head is installed in the DataStick body
59. ler User Guide 58 7 3 Setting DataStick Baud Rate All DataSticks connected to the AV38 must be set up with the same Baud rate To view or edit the current AV38 Baud rate setting press ENTER on the SET BAUD screen as shown The default setting is 19 2 kbps DataStick Comms gt Set Baud CT Use the UP DOWN arrows to edit the AV38 Baud rate Baud rate options include the following kbps 1 2 2 4 4 8 9 6 14 4 19 2 28 8 38 4 57 6 76 8 115 2 and 230 4 The Baud rate selected in the AV38 must match the Baud rate programmed in all connected DataSticks Press ENTER to select a new value Press ESC to leave the Baud rate unchanged DataStick Baud 19 2 kbps EEE 7 4 Setting DataStick Parity All DataSticks connected to the AV38 must be set up with the same parity To view or edit the current AV38 parity setting press ENTER on the SET PARITY screen as shown The default setting is ODD DataStick Comms PbSet Parity AA Use the UP DOWN arrows to edit the AV38 parity Parity options include ODD EVEN and NONE The parity selected in the AV38 must match the parity programmed in all connected DataSticks Press ENTER to select a new value Press ESC to leave the parity unchanged DS Parity Odd JE E Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 59 8 CHLORINE CONFIGURATION MENU When configuring an AV38 for Chlorine measurement the chlorine DataStick can be connected to channel
60. lso known as the Y coordinate Concentration Table Requirements The table can have up to 10 points If the table has fewer than 10 points the last point in the table must be set to 0 uS cm and 0 Thus a typical table with four points will have the form shown in Table 5 Table 5 A typical concentration table with four points Point Conductivity Concentration X Coordinate Y Coordinate uS cm 1 0 0 2 1 000 10 3 5 000 50 4 10 000 99 99 5 0 0 6 0 0 7 0 0 8 0 0 9 0 0 Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 50 10 0 0 Note The coordinate values of 0 uS cm and 0 in point 5 indicate the end of the table Because point 5 is the end of the table points 6 10 are ignored e The conductivity coordinates must be monotonic over the range of interest and increasing in value and be between 0 and 2 000 000 uS cm e The concentration coordinates must also be monotonic over the range of interest but can be either increasing or decreasing and must be between 0 and 99 99 Before entering the concentration table values use Table 6 to record the values to be entered Table 6 Record the table values here before entering them Conductivity Concentration Point X Coordinate Y Coordinate 1S cm 10 2 Monotonic means consistently increasing and never decreasing or consist
61. nge the coordinate value as desired e The UP and DOWN arrow keys increment and decrement respectively the value by a small amount Pressing and holding the UP or DOWN key increments and decrements the value by a slightly larger amount and at a higher rate These keys provide a fine adjustment e The RIGHT and LEFT arrow keys increment and decrement respectively the value by a large amount Pressing and holding the RIGHT or LEFT arrow key increments and decrements the value by an even larger amount and at a higher rate These keys provide a coarse adjustment When the desired points have been entered press the ESC key You will be prompted to exit the table Exit table EE e ey Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 53 Press ENTER to exit the table or press ESC to return to the table to do more editing If ENTER is pressed and one or more points have been changed you will be prompted to save the changes Conc Table Save changes EN E If the changes do not meet the Concentration Table Requirements listed above you will be informed p i H MENU ESC ENTER Press ENTER to save the changes or ESC to discard them Conc Table Confirm failure MENU ESC EN Ba To abort the changes press the ESC key and then press the ENTER key to confirm the abort Conc Table Confirm abort E To return to the edit screen and make corrections press the ENTER key Point 2 Y Data lt
62. number in parentheses to the desired sensor filter in seconds MENU ESC Sensor Filter 1 s S A Press the ENTER key to keep the filter setting currently in parentheses Or press the ESC key to leave the filter setting unchanged Sensor Filter 5 s A After editing or viewing the filter setting return to the Main Configure screen with the ESC key Configure mSensor Filter MENU ESC ENTER g i E When finished with MENU functions return to the Main Configure screen with the ESC key Main Menu P Configure Ear Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 49 Observe the response time of the measurement The temperature filter should also be changed to the same filter value 991 3 us cm AB 30 8 C DS1 6 EEE 5 3 Navigating the User Entered Concentration Table Screens The DataStick can convert measured conductivity into concentration based on a 10 point user entered concentration table This feature is available for contacting and toroidal conductivity only To enable this feature set the Sensor Units to in the Configure menu The measured values will be displayed as shown below 6 971 30 23 C DS1 1 SE A The table can be accessed using the AV38 s user interface Each point in the table is composed of two coordinates conductivity and concentration The conductivity coordinate is also known as the X coordinate and the concentration coordinate is a
63. o Scientific AquaSensors AV38 Local Display and Controller User Guide 40 Press ENTER to acknowledge the calibration failure and return to the measure screen 0 005 pS cm AB TEX SE DS1 6 AA E 4 7 Air Calibration Sensor Type Dissolved Oxygen An AIR CALIBRATION computes the oxygen content measured in air based on the setting for PRESSURE SALINITY and the measured temperature View or change the Pressure and Salinity settings in the CONFIGURE menu Initiate the AIR CALIBRATION process by pressing ENTER Calibrate Air AA A When the air calibration procedure is initiated the analog output is placed into hold mode The user is prompted to place the sensor in air as shown in the Figure 18 Air Sensor in air CT Figure 18 The user is prompted to place the sensor in air After the sensor is placed in air press the ENTER key to start the calibration Air Calibrating ooo oo Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 41 It takes between 5 seconds and two minutes depending on sensor and temperature measurement stability During this time the calibration procedure can be aborted by pressing the escape key See Section 4 3 for an example of an aborted calibration procedure After the air calibration point has been stored the user is prompted to confirm a successful calibration procedure i fis K Confirm cal OK a When the enter key is pressed the analog out
64. option unchanged 12 1 Control Relay Activation Selecting Control operates the relay in a control mode Activation entries specific to a Control relay are e Phase High sets the relay setpoint to respond to increasing measured value Low assigns the relay setpoint to respond to decreasing measured value e Setpoint Sets the value at which the relay will turn on e Deadband Sets the range in which the relay remains activated after the measured value decreases below the setpoint value High phased relay or increases above the setpoint value Low phased relay e Off Delay Sets a time 0 999 seconds to delay the relay from normally de activating e On Delay Sets a time 0 999 seconds to delay the relay from normally activating e The On Delay and Off Delay settings may be used to help eliminate process overshoot when there are long process pipe runs or delays in mixing If CONTROL is selected the following activation options can be programmed in the ACTIVATION menu Table 12 Control relay functions CONTROL Function Edit Range Default Setting Set Phase High or Low High Set Setpoint Min to Max scale Max scale Set Deadband Min to Max scale Min scale Set Off Delay 0 to 999 seconds 0 seconds Set On Delay 0 to 999 seconds 0 seconds Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 70 12 2 Alarm Relay Activation Se
65. or LEFT arrow keys when the Measurement is ppmFCL2 free chlorine concentration This is because the AV38 needs to continuously acquire data from the chlorine DataStick and if necessary the pH DataStick in order to perform the free chlorine concentration calculation Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 61 9 HOLD OUTPUTS SCREEN The HOLD OUTPUTS function is used when it is desired to hold the present values of the 4 20mA analog outputs PID and relays for an extended period of time This feature can be used during maintenance There is no timeout feature for this function t will stay active until it is removed Use the UP DOWN arrows to select Hold Outputs then press enter PHold Outputs cc A Use the UP DOWN arrows to select yes or no then press enter Hold Outputs No ooo Press ESC to return to the Measure screen 991 3 pS cm AB 30 8 C HDS1 6 Ear Note that an upper case H will appear between the temperature units and the station address indicating that the unit is holding the outputs Outputs will be held until deselected Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 62 10 ANALOG OUTPUTS Up to two 4 to 20 milliamp analog outputs are provided for traditional data reporting The selectable features in the analog output menus are the same regardless of the type of sensor head that is installed in the DataStick While the AV38 is
66. output PID and relay functions are needed with a small network of DataSticks Gateway Mode The host computer has access to all measure configure calibrate and diagnose commands for all connected DataSticks In this mode the AV38 suspends all local functions including menu access data display analog outputs and relays This mode is primarily used when the host computer collects digital data and analog outputs and relays are not needed The AV38 allows local configuration and calibration of DataSticks when the application requires it Gateway mode is switched to Measure Mode with a RIGHT arrow or LEFT arrow key press Itis not possible to enter Gateway mode using the RIGHT or LEFT arrow keys when the Measurement is ppmFCL2 free chlorine concentration This is because the AV38 needs to continuously acquire data from the chlorine DataStick and if necessary the pH DataStick in order to perform the free chlorine concentration calculation Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 8 When there is no DataStick present at the selected station address the measure screen will indicate that the DataStick is absent When the sensor head is removed from the DataStick the measure screen will indicate that the sensor head is absent Host communication options include Modbus DeviceNet and others The host protocol is independent of the Modbus RTU protocol used by the AV38 to communicate with the DataSticks There ar
67. pdated during a 2 point buffer calibration It is best to let the sensor value stabilize in the buffer solution before initiating the calibration If the temperature of the sensor is very different from the temperature of the buffer sample allow some time for the temperature to equilibrate before initiating the calibration After the sensor is placed in the first buffer the ENTER key is pressed to start the calibration of the first point Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 30 2 Point Buffer Calibrating MENU ENTER lt gt It takes between 5 seconds and two minutes depending on sensor and temperature measurement stability Once the calibration has been initiated it can be aborted by pressing the escape key before the process is completed See Section 4 3 for an example of an aborted calibration procedure After the first calibration point has been stored the user is prompted to place the sensor in the second buffer The sensor should be rinsed in Dl water and wiped clean before it is placed in the second solution 10 01 pH In 2nd solution AEREA After the sensor is placed in the second buffer the ENTER key is pressed to start the calibration of the second point 2 Point Buffer Calibrating onc After the second calibration point has been stored the user is prompted to confirm a successful calibration procedure 2 Point Buffer Confirm cal OK AAA Thermo Scientific Aqua
68. put is placed into active mode and the monitoring of sensor and temperature values is resumed This successfully completes the air calibration procedure MENU ESC 9 01 ppm AB Ko DS1 6 N U N Ka L If an error occurs during calibration that causes the procedure to fail the reason for the failure is shown on the screen MENU ESC ENTER p i E Air Calibrating Ea MENU ESC ENTER p i E g Air Not stable Bal Ea Ea MENU ESC ENTER p f E Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 42 When the enter key is pressed the calibrate menu is displayed The analog output remains in hold mode This ends the air calibration procedure The user has the option of repeating the procedure if desired Calibrate y gt P 5 oo oo 4 8 Temperature 1 Point Sample Calibration Press the ENTER key from the TEMPERATURE calibration menu to initiate the calibration process Calibrate gt Temperature ES EA When the temperature calibration procedure is started the analog output is placed into hold mode The user is prompted to prepare the sensor The sensor value is dynamically updated during this step as shown in Figure 4 13 MENU ESC 25 3 C Sensor ready 3 gt L Figure 4 13 The temperature value is dynamically updated while the user is prompted to prepare the sensor MENU ESC ENTER p E A When the sensor is ready the ENTER
69. re not limited to inspection and restocking fees Items returned within 60 days shall be subject to a restocking charge that is equal to 15 of the purchase price Items returned after more than 60 days shall be subject to a restocking charge equal to 25 of the purchase price Thermo Fisher Scientific reserves the right to reject any return that is not under warranty after 60 days Non stock items are normally not returnable Transportation Orders are shipped FOB Thermo Fisher Scientific or factory by the most efficient means available Appropriate charges such as freight and insurance will be added to invoices All shipments will be insured Goods damaged in shipment must be reported by the recipient to the freight carrier for claims Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 77 Thermo Fisher Scientific Environmental Instruments Process Water Instruments North America 166 Cummings Center Beverly MA 01915 USA Toll Free 1 800 225 1480 Tel 1 978 232 6000 Dom Fax 1 978 232 6015 Int l Fax 978 232 6031 Europe PO Box 254 3860 AG Nijkerk Wallerstraat 125K 3862 BN Nijkerk Netherlands Tel 31 033 2463887 Fax 31 033 2460832 Asia Pacific BIk 55 Ayer Rajah Crescent 04 16 24 Singapore 139949 Tel 65 6778 6876 Fax 65 6773 0836 www thermo com processwater 2009 Thermo Fisher Scientific Inc All rights reserved 258479 001 Rev A 01 09 Registered Quality S
70. re screen If DataStick Absent is displayed in the measure screen it is likely that the DataStick connected to the AV38 is set up for the wrong station number Baud rate or parity The default communications settings for all Modbus Communications Adapters are 1 DS1 Station set to Modbus Station 1 2 DS2 Station set to Modbus Station 1 3 Data Type of Little Endian Word Swap 2 4 Baud rate of 19 2 kbps 5 Parity is ODD To change the Station Number Data Type Baud rate or Parity in a DataStick refer to the MODBUS Communications Adapter User s Manual PN MAN021CA 4 Thermo Fisher Scientific will provide custom settings at the factory on request This is useful when more than one DataStick is being connected to the AV38 The AV38 DataStick Communications menu is used to set the parameters that the AV38 uses to communicate with the DataStick The complete DataStick Comms menu is shown in Figure 24 DataStick Comms PbSet DS1 Station PbSet DS2 Station PbSetData Type gt Set Baud PbSet Parity Exit Figure 24 The complete DataStick Comms menu 7 1 Setting DataStick Station Number The DataStick Station Number used by the AV38 is displayed in the lower right corner of the MEASURE screen It can be viewed or changed in the DataStick Comms Menu by selecting SET DS1 Station or Set DS2 Station with the ENTER key The default Station Number for both measure screens is 1 DataStick Comms PbSet DS1 Station CT
71. rows Press ENTER to initiate this calibration process Once the calibration has been initiated it can be aborted by pressing the escape key before the process is completed Calibrate 2 Point Sample PTemperature Exit AEREA The sensor should be rinsed in DI water and wiped clean to remove any process solution that would otherwise contaminate the sample When the 2 point sample calibration procedure is started the analog output is placed into hold mode and the user is prompted to place the sensor in the first sample solution The sensor value is dynamically updated during this step as shown in Figure 13 4 07 pH Sensor ready AA E Figure 13 Dynamic display of the pH value during calibration It is best to let the sensor value stabilize in the sample solution before initiating the calibration If the temperature of the sensor is very different from the temperature of the sample allow some time for the temperature to equilibrate before initiating the calibration After the sensor is placed in the first sample the ENTER key is pressed to start the calibration of the first point When the user presses enter the current sensor value is captured and shown in the edit field of the next screen as shown in Figure 14 2 Point Sample 4 07 pH eo Figure 14 The pH calibration edit screen Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 37 The calibration value can be adjusted with the UP and DOW
72. rs Seek ricci oe aw ete A AA AA Wad bes CARE ee Rs 13 2 6 MEASURES CREEN OVER VIEW escritas ici 18 MENU STRUCTURE AND NAVIGATION es0s0000000s0sesososososssososososesssosssssosssssssosososososssssoso 21 CALIBRATE MENUS sisssssccssccssscscscceccsccccacescoceacescccosscsceccccsscccesececececcoscccssessceceacseccacSecscedesccsccceseesced 26 4 1 1 POINT BUFFER CALIBRATION SENSOR TYPE PH ccccccccccsssscececsssceceessscececssscecsesssseseessseeceenssseeeensaaess 28 4 2 2 POINT BUFFER CALIBRATION SENSOR TYPE PH cccsscccecssssececssscececsssceceessececeessssececsssseceenssseesensaaees 30 4 3 ABORTED CALIBRATION SENSOR TYPE ALL cccccccccssssscecsssceceessececeessececsessecesecnseseceesseseceenssseceenssasesensaaess 33 4 4 1 POINT SAMPLE CALIBRATION SENSOR TYPE ALL ccccccccccsssceseessscececsssceeecsssseceesssseeeenssseeeenssaeesensaaess 34 4 5 2 POINT SAMPLE CALIBRATE SENSOR TYPE PH cccccccsssssccesssscececssecececssecececsssseceesssseseenseseesenseasesensaaess 36 4 6 ZERO CALIBRATE SENSOR TYPE CONDUCTIVITY DO OZONE DRINKING WATER TURBIDITY RAW WATER TURBIDITY SUSPENDED SOLID ii at te SEU eet eal 39 4 7 AIR CALIBRATION SENSOR TYPE DISSOLVED OXYGEN c cccsssssssseessscececsssceceessscececssesececnssseceenseseeeensaaess 41 4 8 TEMPERATURE 1 POINT SAMPLE CALIBRATION ccccccsessesecessssesessseseseseseseseseseseseseseseseseseseseseseseseeesceeececs 43 5 CONFIGURE MENU cociccectuse
73. stabilized press ENTER to initiate the calibration 991 3 pS cm Sensor ready Figure 10 Dynamic display of the conductivity value during calibration When the user presses enter the current sensor value is captured and shown in the edit field of the next screen as shown in Figure 11 1 Point Sample 991 3 pS cm ooo Figure 11 The conductivity calibration edit screen The calibration value can be adjusted with the UP and DOWN arrow keys After the calibration value is adjusted the enter key is pressed to calibrate the DataStick as shown in Figure 12 1 Point Sample 1000 pS cm eg Figure 12 Entering the conductivity calibration value After the calibration process is complete the user is asked to confirm the result before releasing the analog outputs relays and measure screen 1 Point Sample Confirm cal OK AA Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 35 1000 pS cm AB 30 8 C DS1 6 eo oo If an error occurs during calibration the reason for the failure is shown 1 Point Sample Not stable E 4 5 2 Point Sample Calibrate Sensor Type pH Press MENU from the Measure Screen 4 07 pH AB 30 8 C DS1 6 ice E Scroll to CALIBRATE with the UP DOWN Arrows and press ENTER PbCalibrate AA Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide Find the 2 Point Sample calibration in the CALIBRATE menu using the UP DOWN ar
74. ted to place the sensor in the buffer solution The sensor value is dynamically updated during this step as shown in Figure 8 7 02 pH In solution AA Figure 8 The pH sensor value is dynamically updated during a 1 point buffer calibration It is best to let the sensor value stabilize in the buffer solution before initiating the calibration If the temperature of the sensor is very different from the temperature of the buffer sample allow some time for the temperature to equilibrate before initiating the calibration After the sensor is placed in the buffer the ENTER key is pressed to start the calibration 1 Point Buffer Calibrating EEE It takes between 5 seconds and two minutes depending on sensor and temperature measurement stability Once the calibration has been initiated it can be aborted by pressing the escape key before the process is completed See Section 4 3 for an example of an aborted calibration procedure Thermo Scientific AquaSensors AV38 Local Display and Controller User Guide 28 After the calibration point has been stored the user is prompted to confirm a successful calibration procedure 1 Point Buffer Confirm cal OK AA When the enter key is pressed to acknowledge that the calibration was successful the analog output is placed into active mode and the monitoring of sensor and temperature values is resumed This successfully completes the 1 point buffer calibration procedure 7 01 pH AB 25 2 C D
75. ystem ISO 9001 2000

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