Thermo Scientific AquaSensors AquaChlor User Manual Download Page 39

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Thermo Scientific AquaSensors

™

AquaChlor

™

Free Chlorine Monitor User Guide

AquaChlor™ Free Chlorine Measurement System

Model Number

AQC Chlorine measurement system using the precalibrated chlorine sensor head, integral temperature with

DataStick electronics, flow chamber, mounting plate and local display.

Display Configuration

1 Integral mount.

2 Remote mount with 20 foot cable.

AV38 Display Configuration

A User Interface with 1 current output. 24 VDC power.

B User Interface with 2 current outputs, 2 relays. 24 VDC power.

C User Interface with 2 current outputs, 2 relays. 90 VAC to 240 VAC power.

AV38 Host Communications Option

0 None

4 Modbus RTU (24 VDC and RS485 terminal connections in AV38)

5 DeviceNet (24 VDC and DeviceNet terminal connections in AV38)

6 CANopen (24 VDC and DeviceNet terminal connections in AV38)

7 Ethernet IP, Modbus/TCP, TCP/IP (PoE RJ45 Connector in AV38)

pH Compensation

A Manual

B Automatic (with active pH sensor)

AQC

Summary of Contents for AquaSensors AquaChlor

Page 1: ...Thermo Scientific AquaSensors AquaChlor Free Chlorine Monitor User Guide ...

Page 2: ... 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 Therm...

Page 3: ...truction 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 sensor due to improper use Contact Information To contact Thermo Scientific AquaSensors Technical Support Within the United States call 1 800 2...

Page 4: ...ly 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 system make sure that 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 ...

Page 5: ...LOR CHLORINE SAMPLE CHAMBER 14 4 WIRING 17 5 AV38 LOCAL DISPLAY INTERFACE 19 5 1 MEASURE SCREEN OVERVIEW 19 5 2 MENU STRUCTURE 21 5 3 1 POINT SPAN CALIBRATION 24 5 4 TEMPERATURE CALIBRATION 27 5 5 CONFIGURATION 29 5 6 CHLORINE CONFIG PH COMPENSATION 30 5 7 ANALOG OUTPUT OVERVIEW 32 5 8 RELAY FUNCTION OVERVIEW 32 6 AQUACOMM INTERFACE 33 7 DIRECT PLC CONNECTIONS 34 8 SPECIFICATION 35 9 FREE CHLORINE...

Page 6: ...ions 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 This symb...

Page 7: ...ng Observing the prescribed environmental and operational conditions Observing chemical compatibility with all wetted materials 1 3 Safety Instructions The Chlorine Measurement System should be installed and operated only by personnel familiar with the sensor and qualified for such work A defective Chlorine Measurement System should be returned to Thermo Fisher Scientific for repair or replacement...

Page 8: ...hermo Scientific AquaSensors communications adapters support measurement calibration configuration and diagnostics functions which can be accessed locally or remotely without an analyzer or controller electronics box The sensor in this system uses an amperometric measurement method with a gold cathode and a silver anode The electrolyte and membrane are easily replaced with a pre stretched screw on...

Page 9: ...Display PLC with Modbus Network AV38 Local Display Modbus PLC Tools AV38 Local Display Manual Modbus Communications Manual DeviceNet PLC with DeviceNet Network DeviceNet PLC Tools DeviceNet Communications Manual CANbus PLC with CANbus Network CANbus PLC Tools CANbus Communications Manual Ethernet IP DeviceNet over Ethernet PoE Switch with DeviceNet Tools Ethernet Manual PCCC Allen Bradley SL C 500...

Page 10: ...m Measurement Ranges Calibration stored in Sensor Does not require recalibration after connection to Analyzer Controller 0 01 ppm Resolution Fast Response Simple membrane and electrolyte replacement Provides measurement calibration configuration and diagnostic functions without Analyzer Controller Works with AV38 for local display current output data reporting and relay control Temperature measure...

Page 11: ...er from the sensor head Be careful not to damage the sensor membrane while removing the cover 2 Unscrew the membrane cap from the sensor head 3 Wet the silicone rubber band near the end of the sensor with clean water Apply light pressure to the band while turning the cap to break any adhesion between the band and cap The band should be seated tightly in the groove on the cap but it should not stic...

Page 12: ...w the cap on slowly until it seats against the gasket at the base of the sensor head Some excess electrolyte will drip out of the top of the cap as it is threaded onto the sensor head 6 Rinse the sensor head with clean water and dry it carefully Inspect the sensor head to make sure the membrane is intact and does not leak electrolyte ...

Page 13: ...g the chlorine measurement If the installation uses a dedicated pH sensor for measurement compensation calibrate the pH sensor refer to user guide for the pH sensor for calibration instructions and install it as required The chlorine sensor temperature measurement can be calibrated with a 1 point sample calibration It is recommended to calibrate the temperature measurement before calibrating the f...

Page 14: ...the membrane surface for accurate readings When the sensor system is inserted into a Thermo Scientific AquaSensors bypass sample chamber pressure is automatically regulated through an overflow weir When using union tee mounting care must be taken to regulate pressure for accurate measurement When configured with a plug in communications adapter the sensor is 12 08 inches long from sensor tip to th...

Page 15: ...ic AquaSensors AquaChlor Free Chlorine Monitor User Guide 13 3 1 Union Tee The Free Chlorine System is threaded into the Union Tee adapter The adapter is then set into the tee and the retaining ring is tightened down ...

Page 16: ... flow chamber into the port on the left hand side of the chamber For applications that require pH measurement the pH sensor is inserted into the top of the flow chamber into the port on the right hand side of the chamber The free chlorine sensor and optional pH sensor are connected to an AV38 local display The AV38 calculates the concentration of free chlorine components If an AV38 is not desired ...

Page 17: ...ve when handled or touched To obtain a stable chlorine measurement the flow through the chamber should be adjusted with the inlet valve When properly adjusted the right port pH port in the flow chamber should fill and overflow into the center drain while the left port chlorine port should partially fill and flow through a small side orifice into the center drain Note that the orifice connecting th...

Page 18: ...er Plumbing Instructions 1 The AquaChlor system has a water INLET and an OUTLET 2 Barb fittings are provided for the INLET and OUTLET to accommodate 3 8 inch and 1 2 inch ID tubing respectively 3 When the INLET is to be directly plumbed rather than using tubing remove the barb fitting and install inch NPT threaded pipe to the INLET 4 When the OUTLET is to be directly plumbed rather than using tubi...

Page 19: ...hield Any Class 2 DC power supply that provides 24VDC can be used For DeviceNet Modbus and RS 232 cables the RED and BLACK wires are for power the BLUE and WHITE wires are for communications and a bare shield wire is connected to EARTH GROUND for safety and electromagnetic immunity and emissions Color DeviceNet Modbus RTU RS 232 RED 24 VDC 12 to 30 VDC 12 to 30 VDC BLACK Signal Ground Signal Groun...

Page 20: ...s can be inserted into the Sensor Head end of the DataStick but the adapter is not long enough to reach the internal connector Likewise any sensor head can be inserted into the communications adapter end of the DataStick but it will be too long for the retaining ring to be engaged O Ring seal should be free of dirt when inserted in the free chlorine sensor body Potted Serial number and Part number...

Page 21: ...o 247 DataStick sensors DataStick sensors connected to the AV38 communicate via Modbus RTU As such the AV38 can be used to select any two of the DataStick sensors on the bus for display current output reporting and relay alarms by selecting the desired station addresses When there is no DataStick sensor connected at the selected network address the measure screen will indicate DataStick Absent The...

Page 22: ... is absent When the DataStick or communications adapter are not connected to the AV38 display the measure screen indicates the fault as shown in Figure 5 3 Use the left and right arrow keys to see the data acquired from the selected DataSticks Refer to the AV38 Manual for detailed information on User Interface operation Sensor Head Absent MENU ESC ENTER DataStick Absent MENU ESC ENTER ...

Page 23: ...Relay outputs Analog Output 1 Set 4 mA and 20 mA values Calibrate and test the current output with a meter Analog Output 2 option Set 4 mA and 20 mA values Calibrate and test the current output with a meter 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 c...

Page 24: ...bration function press ENTER Press the down arrow to scroll through the list Press ESC to return to the measure screen Pressing the down arrow from Calibration will display Configure To select Configure functions press ENTER To continue scrolling the list press the down arrow Press ESC to return to the measure screen Main Menu Calibrate MENU ESC ENTER Main Menu Calibrate MENU ESC ENTER Configure D...

Page 25: ... display Analog Output To select analog output functions press ENTER To continue scrolling the list press the down arrow Press ESC to return to the measure screen Main Menu Analog Output MENU ESC ENTER Pressing the down arrow from Analog Output will display Help To select Help functions press ENTER To continue scrolling the list press the down arrow Press ESC to return to the measure screen Main M...

Page 26: ...ot work here The up arrow can be used to go back through the list Main Menu Exit MENU ESC ENTER 5 3 1 Point Span Calibration To calibrate the span for the Free Chlorine System 1 Draw a sample with a syringe from the process water in the sample chamber and check the concentration with a lab meter For the most accurate calibration the reading should be above 1 ppm 2 Perform a 1 point sample calibrat...

Page 27: ...5 From the Main Menu use the up down arrows to select Calibrate Then press ENTER From the Calibrate Menu use the up down arrows to select 1 Point Sample Then press ENTER Calibrate 1 Point Sample MENU ESC ENTER 4 32 ppm 13 1 C MENU ESC ENTER Main Menu Calibrate ENTER MENU ESC ...

Page 28: ...ion it is important that nothing disturb the measurement sample To abort the calibration during this calculation press ESC When the calibration calculation is complete the result will be displayed on the second line of the display If the calibration is successful the message will be CAL OK If the calibration is not successful the message will be CAL FAIL In either case press ENTER to continue If t...

Page 29: ...g output is placed into hold mode The user is prompted to prepare the sensor The sensor value is dynamically updated during this step When the sensor is ready the ENTER key is pressed and the user is presented with a calibration value for editing Please note that it is best to calibrate temperature when the sample chamber is full of flowing process water Calibrate Temperature MENU ESC ENTER Temper...

Page 30: ... prompted to confirm a successful calibration procedure 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 456 1 NTU AB 25 0 C DS1 6 MENU ESC ENTER Temperature Confirm cal OK MENU ESC ENTER Temperature Calibrating MENU ESC ENTER Temperature 25 0 C...

Page 31: ...d Calibrate Temperature MENU ESC ENTER 5 5 Configuration The complete configure menu for Free Chlorine is shown Configure Sensor Filter ESC ENTER Temp Filter Temp Units Exit MENU From the measure screen press MENU From the Main Menu use the up down arrows to select Configure Then press ENTER From the Configure menu use the up down arrows to select Sensor Filter Then press ENTER Main Menu Configure...

Page 32: ... to channel 2 A Chlorine DataStick connected at channel 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 HOCL 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...

Page 33: ...is used to calculate the selected concentration Note If a pH DataStick is used to calculate the 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 The Fixed pH Value screen provides a way to set a fixed pH value that can be used to calculate free chlorine concentration from the HOCL meas...

Page 34: ...d setup 5 8 Relay Function Overview Relay A and Relay B are optional features on the AV38 Relays are Form C with normally open and normally closed contacts 120 Volts 3 Amps Connections are made with the optional terminal block on the left side of the back panel When installed configuration of relay action is accessed through the Relay A and Relay B in the main menu Top level configuration of the r...

Page 35: ...ff Delay Set On Delay Set On Delay Exit Exit Refer to the AV38 Manual for detailed relay operation and setup 6 AquaComm Interface AquaComm is an application software package that runs on computers with Microsoft Windows operating systems Refer to the USB Comms Adapter manual for installation and setup When the Free Chlorine sensor is connected AquaComm will automatically recognize the sensor type ...

Page 36: ...o the appropriate Thermo Scientific AquaSensors communications manual to set up an interface Modbus uses a register map of floating point integer and ASCII measure calibrate and configure commands Ethernet communications adapters allow access to all functions through a Web browser DeviceNet and CANopen use an electronic file that is loaded for access to all functions Contact Thermo Fisher Scientif...

Page 37: ... Operational Environment Water Temperature Range 5 C to 50 C Air Temperature Range 20 C to 60 C Power Requirements Voltage Range 24 VDC or optional 90 240 VAC Note Class II DC power supply required Construction Sensor Head Material Noryl Sensor Membrane Material PTFE Weight 1 2 lbs Units of Measure Measurement Units ppm Temperature Units C F Calibration Sample Span 1 point Temperature 1 point ...

Page 38: ...able CA22B1A Profibus DataStick Gateway Modbus RTU DataSticks connect to Profibus DP CA26R Local Interface Description Part Number AV38 Display One 4 20mA output PID 24VDC Two 4 20mA outputs PID 2 Relays Modbus Host 24VDC AV38BB0A1 AV38CB4A1 Mounting Hardware Description Part Number 1 5 Union Mount Assembly Stainless Steel CPVC MH1041 MH1042 1 5 Tee Schedule 40 Stainless Steel Schedule 80 CPVC MH3...

Page 39: ...foot cable AV38 Display Configuration A User Interface with 1 current output 24 VDC power B User Interface with 2 current outputs 2 relays 24 VDC power C User Interface with 2 current outputs 2 relays 90 VAC to 240 VAC power AV38 Host Communications Option 0 None 4 Modbus RTU 24 VDC and RS485 terminal connections in AV38 5 DeviceNet 24 VDC and DeviceNet terminal connections in AV38 6 CANopen 24 VD...

Page 40: ...r installation 2 Damage caused by any repair or attempted repair 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 ...

Page 41: ...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 c...

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Page 43: ...Fax 1 978 232 6015 Int l Fax 978 232 6031 Europe P O Box 254 3860 AG Nijkerk Wallerstraat 125K 3862 BN Nijkerk Netherlands Tel 31 033 2463887 Fax 31 033 2460832 Asia Pacific Blk 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 9 0 0 1 2 0 0 8 258484 001 Rev B 01 10 ...

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