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Thermo Scientific AquaSensors

™

AnalogPlus

™

Differential pH Sensor User Guide

Safety Information

The Thermo Scientific AquaSensors AnalogPlus pH sensors 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 sensor, make sure that the sensor cable is
connected as specified. Failure to do so may result in permanent

damage to the sensor or controller.

Protection against electric shock will be achieved only by observance
of the corresponding installation rules.

Содержание AquaSensors AnalogPlus

Страница 1: ...Thermo Scientific AquaSensors AnalogPlus Differential pH Sensors User Guide ...

Страница 2: ...anner specified Only a skilled trained or authorized person should carry out installation setup and operation of the sensor system Before using the sensor make sure that the sensor cable is connected as specified Failure to do so may result in permanent damage to the sensor or controller Protection against electric shock will be achieved only by observance of the corresponding installation rules ...

Страница 3: ...r P99 Controllers 14 3 4 SENSOR MOUNTING 15 3 4 1 Pipe Tee Mounting 15 3 4 2 UNION MOUNTING 17 3 4 3 IMMERSION MOUNTING 19 3 4 4 TRI CLAMP MOUNTING 21 3 4 5 BALL VALVE MOUNTING 22 3 4 6 FLOW CHAMBER MOUNTING 23 3 4 7 WASH HEAD ACCESSORY 23 4 PH SENSOR MAINTENANCE 24 4 1 CLEANING THE PH SENSOR 24 4 2 PH SENSOR REFURBISHMENT REPLACING THE SALT BRIDGE AND REFERENCE SOLUTION 25 4 3 PH SENSOR TROUBLESH...

Страница 4: ...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 poten...

Страница 5: ...the pH sensor mounting hardware analyzer electronics and cabling Observing the prescribed environmental and operational conditions Observing chemical compatibility with all wetted materials 1 3 Safety Instructions AnalogPlus pH sensors should be installed and operated only by personnel familiar with the sensor and qualified for such work A defective sensor should be returned for repair or replacem...

Страница 6: ...erence electrode Temperature elements are embedded in all pH sensors and are used to compensate the pH measurement There are three different choices of temperature element depending on which pH analyzer controller electronics the sensor is to be used with The standard cable lengths are 10 20 and 30 feet It is recommended that for longer cable runs that a junction box be used with an extension cabl...

Страница 7: ...current outputs two relays PID control and optional digital host communications are provided Host communications make it possible to integrate all sensor functions remotely with any computer system while allowing local control through the AV88 keypad Supported host communications protocols include Modbus RTU DeviceNet Modbus TCP Ethernet IP CANopen and Profibus The AV88 enclosure is rated for outd...

Страница 8: ...fications shown here are general in nature and assume that the proper materials have been chosen for the application Measuring Range 0 to 14 pH Resolution 0 01 pH Operating Temperature Maximum Pressure Maximum Flow Rate PEEK Sensor CPVC Sensor 5 C to 95 C 5 C to 75 C 100 PSIG 95 C 85 PSIG 75 C 10 ft second 10 ft second Standard Sensor Cable Lengths 10 ft 20 ft and 30 ft Maximum Transmission Distan...

Страница 9: ...tion applications Five wire cables are routed through conduit or a cable tray to a Differential pH analyzer or controller Standard cable lengths are 10 20 and 30 feet Custom cable lengths up to 300 feet are available The sensor body has 1 0 inch or 1 5 inch NPT threads for the following mounting options Standard pipe tee insertion AquaSensors immersion mounting assembly AquaSensors pipe adapter fo...

Страница 10: ...nitary mounting are needed sensors can be provided with smooth bodies and sanitary flanges PEEK pH Sensor with removable Teflon Wiper for 2 Inch ball valves Smooth CPVC 1 5 Inch Body for 2 inch Ball Valve insertion CPVC pH Sensor with 2 5 inch Tri clamp flange Figure 3 2 Body Variations for pH Sensors ...

Страница 11: ...pH sensor line The 1 0 inch diameter sensor body Fig 3 4 and the 1 5 inch diameter sensor body Fig 3 5 The 1 5 inch diameter body is intended for use where 1 5 inch NPT compatible hardware is installed Figure 3 3 1 0 Inch Diameter Body Dimensions IN mm 6 09 in pH ELECTRODE GROUND ROD REFERENCE 1 35 in 34 0 mm 154 7 mm 1 0 NPT Figure 3 4 1 5 Inch Diameter Body Dimensions IN mm ...

Страница 12: ...emoved from service When taking a sensor out of storage soak the sensor in a pH 7 buffer solution for 30 minutes before calibration DO NOT USE PIPE SEALANT Pipe sealants may not provide adequate sealing or may react with different plastic materials Use Teflon thread tape DO NOT OVER TIGHTEN Maximum torque 65 lbs in 7 N m The sensor should be positioned at least 15 up from horizontal This will insu...

Страница 13: ... to the controller terminal block as outlined in the controller manual 3 1 2 Indirect Connection Using a Junction Box 1 Insert the sensor cable and the interconnect cable through a watertight cord grip or conduit into the junction box that has a terminal strip designed to make the proper connections 2 Connect both the sensor cable wires and the interconnect wires to the terminal strip 3 Insert the...

Страница 14: ...lack Ground Yellow Temperature Shield Earth Ground Figure 3 5 pH sensor hook up for AV88 Controllers 3 3 2 Connections for P99 Controllers Sensors that are constructed to operate with the P99 or with third party analyzers like the GLI Hach P63 P53 P33 P3 have 5 wires and a shield Part numbers are located on a cable label and will have a 7 or 8 in the part number as show FP21A 7 D10 or FP21A 8 D10 ...

Страница 15: ...ble pipe tees vary widely in construction dimensions CPVC pipe tees are most generally available with schedule 80 walls and AnalogPlus sensors generally fit as shown here Pipe tees made of stainless steel with schedule 40 walls will sit lower in the pipe Recommended Tee Mounting Configurations Figure 3 8 1 5 Inch Sensor Mounted in Schedule 80 PVC Tee Dimensions IN mm Figure 3 7 1 0 Inch Sensor Mou...

Страница 16: ...uld be hydrated in tap water for at least 1 hour prior to calibration c Calibrate the pH sensor as explained in the controller manual It is recommended to use a 2 point buffer calibration upon installation of the sensor Subsequent calibrations should be scheduled based on process demands d If measurement response time is slow or if the sensor will not calibrate refer to Section 4 for maintenance r...

Страница 17: ...r applications where calibration and or cleaning is frequent Union Mount Advantages 9 No cable twisting during installation or removal 9 Quick disconnect 9 Optimal positioning of sensing surface 9 Trouble free installation 9 Easy maintenance Figure 3 10 Union Mounting 1 5 Inch Sensor Body Dimensions IN mm Figure 3 9 Union Mounting 1 0 Inch Sensor Body Dimensions IN mm ...

Страница 18: ... the protective cap from the sensor head and make sure moisture is present and that the salt bridge has not dried out If the protective cap is dry the sensor should be hydrated in tap water for at least 1 hour prior to calibration b Calibrate the pH sensor as explained in the controller manual It is recommended to use a 2 point buffer calibration on installation of the sensor Subsequent calibratio...

Страница 19: ...ioning of the sensor in a pond or tank Figure 3 11 Immersion Mount Assembly 1 5 Inch Sensor Body Figure 3 12 Immersion Mount Assembly 1 0 Inch Sensor Body This immersion mount assembly can be ordered by itself with a hand rail mounting assembly or with a ball float that keeps the sensor as a fixed distance below the surface of the water Part numbers for the three assemblies is shown in the followi...

Страница 20: ... has not dried out If the protective cap is dry the sensor should be hydrated in tap water for at least 1 hour prior to calibration c Calibrate the pH sensor as explained in the controller manual It is recommended to use a 2 point buffer calibration on installation of the sensor Subsequent calibrations should be scheduled based on process demands d If measurement response time is slow or if the se...

Страница 21: ...ase of the 2 5 inch tri clamp mounting hardware the length is 7 inches and the insertion branch is 3 5 inches Thermo Fisher Scientific can provide the gasket the clamp and the tee when the mounting hardware package is ordered 2 5 Inch Tri clamp flange Groove for Tee Gasket Five or Six Wire Cable CPVC Sensor Body with a 3 375 inch depth from the flange to the sensor tip Removable Salt Bridge Glass ...

Страница 22: ... at the end of a 2 inch ball valve extension rod The sensor with an INS suffix in the part number is pictured here with a smooth CPVC body The sensor with a INSW suffix in the part number is pictured here with a Teflon wiper to assist with insertion and retraction The Teflon wiper is usually used with PEEK sensors in tough chemical applications 2 inch ball valve assemblies used with 1 5 inch diame...

Страница 23: ...ace 1 0 inch pH Sensor Flow Chamber Retaining Ring 3 4 7 Wash Head Accessory In application where the sensor head is quickly fouled with sediment a wash head assembly can be attached The head slips on the body of the sensor and the wash nozzle is aligned with the glass pH electrode A single screw is tightened to secure the wash head to the sensor A hose is connected from the wash head to an air co...

Страница 24: ... 4 Rinse the electrode end with clean warm water 4 1 2 5 If deposits are still present on the glass electrode repeat the cleaning procedure In the case of lime or other mineral deposits a weak solution about 0 1 M of hydrochloric acid may be used In some cases a dilute solution about 10 1 of water and chlorine bleach or a solution of water and EDTA may also work Stubborn oil or grease deposits may...

Страница 25: ...voir with 7pH Standard Cell Solution so the solution just covers the reference O ring Do not overfill Overfilling will lead to excessive pressures that will affect the junction potentials of the reference 4 2 5 Slowly screw the new salt bridge clockwise onto the sensor head until secure Tighten the salt bridge with a 15 16 wrench 24mm until snug Do not over tighten Maximum torque 10 lbs in 1 13 N ...

Страница 26: ...ration with another sensor Note Any new sensor that has been in storage for more than a few days should be soaked in tap water or a solution of known pH for at least 30 minutes before reviewing measurement performance Note The salt bridge of any pH sensor in storage must be kept moist at all times Protective caps should be filled with Thermo Scientific AquaSensors storage solution for best perform...

Страница 27: ...or in 4 pH buffer Stir the sensor for 10 to 15 seconds and then allow the sensor to stabilize in solution for about 2 minutes The meter should read a change of at least 150mV from the offset reading For example if the offset is 20mV the reading in 4 pH buffer should be at least 130mV After testing offset and span the RED and GREEN wires should be reconnected to the analyzer terminal block Sensor P...

Страница 28: ... standard configuration F Hastelloy C for heavy industrial applications Cable Length 10 10 Feet 20 20 Feet 30 30 Feet xx Where xx Number of Feet SP AnalogPlus pH Sensor Part Number Part Number Suffixes for Special Body Construction IN15 S20 S25 1 5 inch Ball Valve Insertion Mount No front threads Sanitary Style 2 0 Tri clamp Sanitary Style 2 5 Tri clamp Mounting Hardware Description Part Number 1 ...

Страница 29: ...m standard configuration F Hastelloy C for heavy industrial applications Cable Length 10 10 Feet 20 20 Feet 30 30 Feet xx Where xx Number of Feet FP AnalogPlus pH Sensor Part Number Part Number Suffixes for Special Body Construction INS INSW S25 Insertion smooth body For 2 valve hardware Insertion with Teflon wiper for MH1181 FP valve hardware Sanitary Style 2 5 Triclamp Mounting Hardware Descript...

Страница 30: ...ed Qty 10 CPVC Process Flat Qty 1 CPVC Process Flat Qty 3 CPVC Process Flat Qty 10 For all pH and ORP sensors with PEEK bodies Quantity 1 For all pH and ORP sensors with PEEK bodies Quantity 3 For all pH and ORP sensors with PEEK bodies Quantity 10 For all pH and ORP sensors with PEEK bodies Quantity 1 For all pH and ORP sensors with PEEK bodies Quantity 3 For all pH and ORP sensors with PEEK bodi...

Страница 31: ...sher 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 repair not authorized by Thermo Fisher Scientific 3 Any product not used in accordance with the instructions furnished by Thermo Fi...

Страница 32: ...nt 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 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 contamina...

Страница 33: ...258469 001 Rev A 01 09 ...

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