Model PH8EFP KCl Filling type pH Sensor
Contents
1. Cable Inlet Figure 2 17 Connecting Sensor Cable to Four wire pH Converter 3 Install the cable gland in the wiring hole as follows Pass the tip of the cable gland into the opening and completely tighten the gland with the nut inside the case After tightening the gland secure the cap properly to prevent moisture from getting into the case Caution Do not overly tighten the cap Otherwise the cable may be damaged 4 After completing the cable connections close the converter cover securely thus preventing moisture from getting into the case IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt 3 Maintenance on operation gt 3 1 3 Maintenance on operation 3 1 Operation and Periodic Maintenance 3 1 1 Calibrating pH Sensor Using Buffer Solutions Calibrate pH sensors with buffer solutions before starting normal operation because the emf of glass electrodes differs somewhat from each other The emf of a glass electrode gradually changes due to electrode staining or deterioration Therefore buffer solution calibration must be carried out periodically within a given period of time to keep the measurement errors within the limits specified For more detailed information on the calibration procedures see relevant pH transmitter converter IMs 3 1 2 Pressurizing Reserve Tank When the pH sensor with medium pressure reserve tank is used apply air pressure to the reserve tank before flowing the measured so2. For PH202S model and suffix code below is available PH202S o E o must be C or U There are no PH202S models that meet the Korean explosion proof standards Any option code is available Upper limit of process temperature on the PH8EFP Transmitter used in FLXA21 combination bient temperature Ta 40 C 60 C 40 C 60 C Pangaral mm cass Po ee Al og aa a po THA 105 66 105 78 ME Care about upper limit 100 C of temperature class T5 should be taken IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt Introduction gt iv Other warnings are provided in the following WARNING Handling precautions 1 Potential electrostatic charging hazard Electrostatic charge may cause an explosion hazard Avoid any actions that cause the generation of electrostatic charge e g rubbing with a dry cloth 2 With sensors that have a solution ground tip made of titanium TN ignition sources due to impact and friction sparks are excluded 3 IEC60079 14 Electrical installations in hazardous areas requires a label indicating simple apparatus stick this label to this sensor if necessary Enns IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt Introduction gt vV After sales Warranty E Do not modify the product E During the warranty period for repair under warranty consult the local sales representative or service office Yokogawa will replace or repair any damaged parts Before consulting f
3. TF Perfluoroelastomer FFKM 6 Glass electrode for high alkali 7 Teflon junction 8 dl 2 2 inch pipe mounting bracket is supplied with TT1 TT2 and TT3 Only a supply tube but no KCI solution is supplied with TN1 and TN2 Since a KCI solution is not supplied with TT2 arrange it from among accessories or auxiliary parts Prepare an air pressure regulator as shown in the diagram below when the medium pressure reserve tank is used To pH sensor Regulator to be prepared separately PINA Air Supply y 3 Regulator To pH sensor to be prepared separately Mark band is shown by alphanumeric and fork terminals are used Mark band is shown by numeral and pin terminals are used When terminal box is used select WTB10 PH1 The tag which indicated the color the sign and the number is attached to the cable of a sensor Choose Perfluoroelastomer FFKM when this is used in organic solvent high temperature alkaline solution Choose when using in high alkali or high temperature alkaline solution Choose when using in the heavily contaminated application Mark band is shown by numeral and M3 ring terminals are used When terminal box is used select WTB10 PH3 Mark band is shown by numeral and M4 ring terminals are used When terminal box is used select WTB10 PH5 Accessories Description Accessories for pH meter 1 Calibration Two bottles each containing 250 mL solution pH7 and
4. Table 2 Process Pressure Range Holder Submersion Atmospheric pressure Submersion depth Max 3 m Process Pressure Range Guide pipe Suspension Float Flow through 1 Atmospheric pressure to 10 kPa 2 Atmospheric pressure to 500 kPa 3 Atmospheric pressure Submersion depth Max 3 m 4 For flow through types refer also to the solution temperature and pressure diagram of Holder IM 2 When general purpose reserve tank used 2 When medium pressure reserve tank used Operating solution depth 3 m water pressure max under atmospheric pressure Solution flow velocity 2 m s max Solution flow rate 3to 11 L min when the sensor is installed in a flow through type holder Solution conductivity 50 uS cm or higher Wetted part materials Body Ryton PPS resin glass titanium or Hastelloy C ceramics teflon Fluoro rubber FKM rubber or Perfluoroelastomer FFKM Cable Chlorinated polyethylene rubber Cable sheath KCI solution supply tube Heat resistant soft PVC General purpose or big volume tank 500 mL Polyethylene Medium pressure Weight Sensor Approx 0 4 kg KCI Tank Approx 0 3 kg General purpose Approx 1 kg Medium pressure Approx 0 8 kg Big volume KCI solution consumption when pressurized with 10 kPa Maximum 3 mL day general junction Maximum 7 mL day teflon junction Output Response Response time for 90 response 10 seconds maximum when the sensor
5. 2 1 An Example of Model Number Entering to Nameplate Sensor Body Solution Ground tip Glass Electrode p p So Figure 2 2 Names of PH8EFP pH Sensor Components Liquid Junction r22ai IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt 2 Installation gt 2 2 2 1 2 Mounting Glass Electrode Mount the glass electrode on the sensor body as per the following procedure 1 Peel off the seal from the electrode mounting hole on the sensor body 2 Remove the cap for the glass membrane Wipe off any solution remaining on the O ring with a tissue or other material 3 Remove the cap for the gold plated pin R Confirm that there is no damage on the O ring that might affect its sealing performance 5 Mount the glass electrode on the sensor body Insert the electrode in the mounting hole and screw it clockwise until the O ring fits tightly in the hole NOTE As shown in Figure a the cap for the glass membrane contains the solution to keep wet pH4 buffer solution Do not splash the solution when removing the cap Remove the cap carefully because the rod beside the glass membrane is very fragile Before mounting the glass electrode on the sensor body make sure that the O ring and the gold plated pin are not wet Wipe off any remaining solution Make sure that there are no droplets in the mounting hole Wipe off any droplets or they may cause insulation failure Use the electrode within one ye
6. PH8EFP 15 OG TTO N O A Approx 15000 Approx 1 4 PH8EFP 20 OG TTO N O A Approx 20000 Approx 1 9 27 5 Medium pressure KCI reserve tank Big volume KCI reserve tank with mounting bracket with mounting bracket PH8EFP 00 00 TT2 N 0 A PH8EFP 00 00 TT3 N 0 A Rc1 4 el Coupling with valve Approx 105 y 2105 ET 2 l 2 inch pipe 260 5 60 5 5 tr a i ti o Y H 3 le Fue 2 inch pipe i9 KE 80 st mme a pit gt A jee HE Figure 1 1 PH8EFP Filling type pH Sensor IM 12B7J1 01E 2 89 M8 screw holes Hole requirements for wall mounting F1 1 ai 9th Edition Nov 10 2015 00 lt 2 Installation gt 2 1 2 Installation 2 1 Preparation for Installation 2 1 1 Unpacking and Inspection The Model PH8EFP pH sensor is well packed so as to prevent damage during shipment After removing the sensor from its shipping container visually check the sensor for damage NOTE 1 When delivered the glass electrode and the liquid junction are packed separate from the sensor body 2 So that caps of the glass electrode and the liquid junction do not dry out do not take unpack these at this time MODEL PH8EFP 03 TN TT1 N T A ve YOKOGAWA 4 Made in Japan F2 1 ai Figure
7. not usually required However if the sensor characteristics are affected by chemical staining for example when the sensor is used for pH measurement of a highly alkaline solution carry out acid washing To clean the glass electrode or liquid junction proceed as follows e Stains due to suspended Solids Sticky Materials Microbes or the like Using soft tissue paper wipe the stains off the glass electrode or liquid junction In addition clean off remaining stains by rinsing with water e Stains due to Oily Materials Wash off stains by submerging in a neutral detergent solution in a beaker etc for from several tens of minutes to several hours depending on the degree of staining IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt 3 Maintenance on operation gt 3 3 e Chemical Stains such as due to Metallic Adsorption Place the glass electrode or liquid junction in a diluted hydrochloric acid solution 1 to 2 for several minutes acid washing 3 2 Replacing Consumable Parts 3 2 1 Replacing Glass Electrode If buffer solution calibration becomes impossible due to deterioration of the glass electrode replace it with a new one After the glass electrode is replaced always carry out a buffer solution calibration 3 2 2 Replacing Liquid Junction Even after washing the liquid junction if normal measurement cannot be made replace the liquid junction When replacing the liquid junction fill the sensor with KCI solution t
8. the operations and functions NOTE This symbol indicates information that complements the present topic m Warning and Disclaimer The product is provided on an as is basis YOKOGAWA shall have neither liability nor responsibility to any person or entity with respect to any direct or indirect loss or damage arising from using the product or any defect of the product that YOKOGAWA can not predict in advance IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt Introduction gt Wl Compliance with the simple apparatus requirements PH8EFP meet the simple apparatus requirements defined in the following standards Note TIIS certified types cannot be connected Use the sensors under the conditions of use required by the standards Applicable standards ANSI ISA 60079 11 2014 ANSI ISA 60079 0 2009 CAN CSA C22 2 NO 60079 11 14 CAN CSA C22 2 NO 60079 0 11 PERA APAADE WA pA A GB 3836 4 2010 Conditions of use 1 Use in combination with an internally isolated transmitter or use with a transmitter in combination with isolated barrier The FLXA21 is internally isolated 2 Upper limit of the process temperature The upper limit of process temperature is indicated below when the sensor is used in combination with a YOKOGAWA transmitter For FLXA21 model and suffix code below is available FLXA21 D 0 D EA P 1 0 A N LA N NN can be any value o must be NN or P1 Any option code is available
9. H 9 K9084LN K9020XA K9020XC Six 250 mL polyethylene bottles 12 bags each for preparation of 500 mL 12 bags each for preparation of 500 mL Note The pH value of the calibrating buffer solution may vary depending on storage conditions Prepare a new solution from powder for accurate instrument calibration IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt 1 Specification gt 1 3 External Dimensions B T Fork terminal GE S RE SE T1 T2 E Pin terminal 15 16 13 14 11 12 G F Ring terminal Unit mm 15 16 13 14 11 12 DU General purpose KCI reserve tank with mounting bracket PH8EFP OO OO TT1 N O A AN e NG m CN 2 inch pipe H 7 wo b i Cable gland is not included PLEN EV Reuse existing gland or replace 3 i j Q o Cable length L H ALA Terminal No and colors LL H Tube length L GE 15 Red G TY RE 13 Brown i T1 11 Black KOI T2 12 White Approx 75 EG Approx 45 SE 14 Green 7 s 16 Yellow 64 Model and codes L mm Weight kg PH8EFP 03 OG TTO N O A Approx 3000 Approx 0 4 PH8EFP 05 OG TTO N O A Approx 5000 Approx 0 6 PH8EFP 07 OG TTO N O A Approx 7000 Approx 0 7 103 PHSEFP 10 DO TTO N O A Approx 10000 Approx 1 0
10. User s Manual Model PH8EFP KCI Filling type pH Sensor IM 12B7J1 01E vigilantplant YOKOGAM 9 IM 12B7J1 01E Yokogawa Electric Corporation 9th Edition lt Introduction gt INTRODUCTION This manual covers the PH8EFP KCI Filling type pH Sensor Other related items are described in the following manuals PH8HG IM 12B7M2 01E PH8HF PHSHFF IM 12B07N01 01E PH8HS PH8HSF IM 12B07M01 01E Media No IM 12B7J1 01E 9th Edition Nov 2015 YK IM 12B7J1 01E 9th Edition Nov 10 2015 00 All Rights Reserved Copyright 1996 Yokogawa Electric Corporation lt Introduction gt ll For the safe use of this equipment m Notes on Handling User s Manuals Please hand over the user s manuals to your end users so that they can keep the user s manuals on hand for convenient reference Please read the information thoroughly before using the product The purpose of these user s manuals is not to warrant that the product is well suited to any particular purpose but rather to describe the functional details of the product No part of the user s manuals may be transferred or reproduced without prior written consent from YOKOGAWA e YOKOGAWA reserves the right to make improvements in the user s manuals and product at any time without notice or obligation e Ifyou have any questions or you find mistakes or omissions in the user s manuals please contact our sales representative or your local distributor m Saf
11. able Parts aaa 3 3 3 2 1 Replacing Glass Electrode rrnrnrnnnvnnnvnnnvnnnvvnnvvnnvnnnvnnnvnnsvnnsvnnsreennnnn 3 3 3 2 2 Replacing Liquid Junction ccccceeeeeeeeeeeeeeeeeeeeeeeeeseaeeteeeeeneeenees 3 3 3 2 3 Replacing O rings for Glass Electrode nn nennen 3 3 Customer Maintenance Parts List rrrnnvnnnnnnvnnnnvennnnvnnnnnr CMPL 12B05J01 02E Revision Information een i IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt 1 Specification gt 1 1 1 1 1 Specification The Model PH8EFP KCI filling type pH Sensor permits stable pH measurement even for solutions having comparatively severe properties This sensor can be mounted on either an PH8HF flow through holder or an PH8HS submersion holder or its can be used alone suspended in the solution maximum depth 3 meters Standard Specifications Measurement Hydrogen ion concentration pH of a solution Measurement principle Glass electrode method Measuring range 0 to 14 pH see Table 1 Installation Mounting in PH8HS submersion holder Mounting in PH8HG guide pipe holder Mounting in PH8HF flow through holder Note If any of the following solutions are measured install the sensor either in a flow through or submersion holder When the solution temperature exceeds 80 C When the pH of the solution is 2 or less or 12 or greater When a strong acid solution is to be measured e g aqua regia chromic acid hypoc
12. ar after purchase The solution to keep wet gradually evaporates over time A glass electrode whose glass membrane has dried out does not provide stable readings until it gets used to the solution As shown in Figure b place in advance the glass electrode either in the pH4 or pH7 buffer solution for more than a day before using Cap for the gold plated pin Make sure the part above the O ring is not wetted Cap for the glass membrane TE Solution to keep wet inside Case part No K9008WT a b 2 1 3 Mounting Liquid Junction The liquid junction is mounted in the sensor body when the KCI solution is poured into the sensor body Refer to Section 2 2 2 1 4 Installing Holder Usually the pH sensor is suspended in a guide pipe or installed in a flow through or submersion holder First install the holder 2 1 5 Installing Associated Instruments Make sure that the associated instrument a pH transmitter converter or a junction terminal box to which the pH sensor cable is connected has already been installed IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt 2 Installation gt 2 3 2 2 Requirements for mounting the pH sensor 2 2 1 In case of installing the PH8HG Guide pipe Holder To install the sensor in the guide pipe proceed as follows 1 Connect the sensor cable to the associated instrument correctly by referring to Section 2 3 provided later 2 Mount the liquid junction in the sensor body Peel off the s
13. e down at a position lower than the reserve tank so that solution flows from the tank into the sensor When the KCI solution fills the sensor and overflows from the liquid junction mounting hole securely screw the liquid junction into the mounting hole Remount the cap of the reserve tank Tighten the nut securely 4 Use 3 3 mol L KCI solution If KCl powder ordered separately are supplied with the PH8AX accessories dissolve one bag 60 g of KCI powder in pure water to make exactly 250 mL of solution When a Big volume reserve tank is used Fill the reserve tank with a KCI solution Loosen and remove the top cover on the reserve tank and pour a KCI solution of approximately 500 mL When loosening or closing the cover always do so while holding the reserve tank by hand When further tightening the fixing nut at the bottom of the reserve tank be careful not to tighten it too tight Excessive tightening may cause cracks in the reserve tank and thus leakage of KCI solutions This will make grounding connections at two points resulting in unstable readings or measurement errors IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt 2 Installation gt 2 1 0 Cover Reserve Tank re Fixing Nut KCI eh Refilling Tube To pH Sensor F2 11 1 ai Figure 2 11 1 Big Volume Reserve Tank 5 Connect the pH sensor to its holder Remove the protective cap from the sensor Also remove the protective foam piece for s
14. e tank to a pipe 2 inch Connect the general purpose reserve tank to the KCI solution supply tube of the sensor Remove the cap from the tank and screw the tube connector securely into the tank When using a medium pressure reserve tank attach it to a pipe 2 inch and perform air piping to supply pressure for reserve tank as shown in Figure 2 11 Connect the KCI supply tube of the sensor to this reserve tank Maximum Measured Solution Pressure 10 kPa Pressure Gauge Air Supply Air Pressure Regulator To pH Sensor Figure 2 11 Air Piping for Pressurizing Medium Pressure Reserve Tank 4 Supply KCI solution to the sensor When a general purpose reserve tank is used First mount the reserve tank on the holding hardware with the tube connection part directed downwards Using the pin supplied with the tank make several holes in its top see Figure 2 3 Stand the sensor upside down at a position lower than the reserve tank as shown in Figure 2 3 so that KCI solution flows from the tank into the sensor When the KCI solution fills the sensor and overflows from the liquid junction mounting hole securely screw the liquid junction into the mounting hole When a reserve tank for medium pressure is used First fill the reserve tank with KCI solution 1 Loosen the nut on the reserve tank upside and remove the cap the pressure gauge is mounted and pour about 250 mL or KCI solution into the tank Stand the sensor upsid
15. eal attached to the liquid junction mounting hole in the sensor body Screw the liquid junction gently two or three turns into the hole 3 If specified a reserve tank containing 250 mL KCI solution and mounting hardware to hold this tank are supplied with the PH8EFP pH sensor Attach the holding hardware to the pipe nominal diameter 50 mm Connect the reserve tank to the KCI solution supply tube of the sensor Remove the cap from the tank and screw the tube connector securely into the tank 4 Supply KCI solution to the sensor see Figure 2 3 First mount the reserve tank on the mounting hardware with the tube connection part directed downwards Using the pin supplied with the tank make several holes it its top see Figure 2 3 Stand the sensor upside down at a lower position than the reserve tank as shown in Figure 2 3 so that KCI solution flows from the tank into the sensor When the KCI solution fills the sensor and overflows from the liquid junction mounting hole securely screw the liquid junction into the mounting hole Leave air space in the tank Make several holes using the pin supplied with the tank Liquid Junction Loose General Purpose UD Reserve Tank Sensor Body H KCI Solution Tube Y F2 3 ai Figure 2 3 Supplying KCI Solution to Sensor Body For the Big volume reserve tank refer to page 2 9 to 2 10 5 Attach the stopper supplied with the guide pipe to the sensor cable Fix the sens
16. ety Protection and Modification of the Product In order to protect the system controlled by the product and the product itself and ensure safe operation observe the safety precautions described in this user s manual We assume no liability for safety if users fail to observe these instructions when operating the product If this instrument is used in a manner not specified in this user s manual the protection provided by this instrument may be impaired If any protection or safety circuit is required for the system controlled by the product or for the product itself prepare it separately Be sure to use the spare parts approved by Yokogawa Electric Corporation hereafter simply referred to as YOKOGAWA when replacing parts or consumables e Modification of the product is strictly prohibited The following safety symbols are used on the product as well as in this manual AN WARNING This symbol indicates that an operator must follow the instructions laid out in this manual in order to avoid the risks for the human body of injury electric shock or fatalities The manual describes what special care the operator must take to avoid such risks A CAUTION This symbol indicates that the operator must refer to the instructions in this manual in order to prevent the instrument hardware or software from being damaged or a system failure from occurring CAUTION This symbol gives information essential for understanding
17. hipping this is not necessary after installing the sensor from the holder Be sure that the liquid junction and glass electrode are mounted properly Insert the sensor tip into the holder and tighten the sensor fixing nut securely see Figure 2 10 la pH Sensor Fixing Nut O ring Flow through Holder 2 inch Mounting Pipe F2 12 ai Figure 2 12 Installing Sensor in Flow through Holder How to install the HH350G PB350G and PB360G holders refer to relevant IMs IM 12B7J1 01E 9th Edition Nov 10 2015 00 2 3 2 3 1 lt 2 Installation gt 2 1 1 pH Sensor Cable Wiring Procedure Processing of Cable Inlet Hole Open the cable inlet hole in terminal box using the supplied punch tool The location of the cable inlet hole is shown by the circle shaped groove under the case The end of the supplied punch tool is put in the center of this circle and it is tapped with appropriate force You can punch out the hole along the groove Hole punching tool for wiring supplied as accessory F2 13 ai Figure 2 13 How to punch out the wiring hole Connecting Sensor Cable 1 Loosen two screws which are at front of terminal box and detach the cover 2 After detaching the nut from the cable gland of sensor cable pull the cable into the terminal box from sensor cable inlet hole 3 Connect the sensor cable to the terminals After passing the cable through the nut check the symbol o
18. hlorous acid or perchloric acid etc When the solution contains corrosive gases e g ammonia chlorine hydrogen sulfide etc When the solution contains a small percentage of organic solvent or oil Solution temperature 5 to 105 C when mounted in PH8HG guid pipe holder 5 to 80 C when mounted in PH8HS PH8HF holder see Table 1 Table 1 Process Temperature Range Holder Type Holder Material Cleaner Solution pH Range Solution Temperature C Guide pipe None 5 to 50 PHSHG None 5 to 80 Submersion None 5 to 100 PH8HS Provided 5 to 80 Flow through None Provided 5 to 80 PH8HF 2 None 5 to 105 Provided 5 to 80 Suspension None Provided HH350G Float PB350G PB360G Note PVC Rigid Polyvinyl PP Polypropylene SS Stainless Steel 4 Stainless steel holder and Stainless steel adapter should be used when the pH value of the solution is pH3 or more acidic 2 For flow through types refer also to the solution temperature and pressure graph in notes following Model and Suffix code table for flow through type holders Temperature compensation sensor Pt1000 Solution pressure Under atmospheric pressure to 10 kPa General purpose or big volume tank 500 mL See Table 2 when using holder Atmospheric pressure to 500 kPa Medium pressure tank See Table 2 when using holder IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt 1 Specification gt 1 2
19. irst in the inlet then the outlet valves in the flow through type holder Outlet side Stop Valve gt Inlet side Stop Valve Ore Figure 3 1 Process Piping of Flow through Type Holder IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt 3 Maintenance on operation gt 3 2 2 Remove the socket connector on the reserve tank and stop the air pressurizing the tank see Figure 3 2 Socket type Connector Press this part connector can be removed F3 2 ai Figure 3 2 Socket Type Connector 3 Remove the nut fixing the reserve tank cap and remove the cap 4 Refill the tank with 3 3 mol l KCI solution see Figure 3 3 The maximum solution level 30 to 40 mm lower than the top 30 to 40 mm ka il j gt ae F3 3 ai Figure 3 3 Maximum KCI Replenishment Level AUT HIN 5 Retighten the nut to fix the cap in position 6 Open the valve and let the measured solution flow through the holder 3 1 4 Cleaning Glass Electrode and Liquid Junction Staining of a glass electrode or liquid junction can cause measurement errors Therefore if he measured solutions tend to stain the electrode the glass electrode and liquid junction must be cleaned periodically depending on the degree of staining if the pH sensor is installed in a holder with a cleaner the sensor is continuously for an ultrasonic cleaner or intermittently for a jet or brush cleaner cleaned automatically Because of this sensor cleaning is
20. lution through the holder Set the air pressure a little higher than the maximum pressure of the measured solution during the operation The flow rate of the KCI solution from the liquid junction is maximum 3 mL day for general junction maximum 7 mL day for teflon junction when the pressure difference between air and measured solution is 10 kPa and the flow rate increases in proportion to the pressure difference Therefore it is important to minimize the consumption of the KCI solution by minimizing the pressure variation of the measured solution and making sure that the air pressure is not set too high 3 1 3 Replenishment of KCI Solution When the KCI solution in the tank seems to be nearly exhausted while using a pH sensor with general type reserve tank replace the reserve tank with new one provided separately as spare part Instead of tank replacement when a KCI solution prepared using KCI powder is used for replenishment use 3 3 mol L solution by dissolving 246 g of KCI powder in pure water to make exactly one liter of solution When pouring the solution into the tank be careful that KCI solution does not overflow from the vent holes of the tank When a pH sensor with a medium pressure reserve tank is used replenish the KCI solution when the KCI solution in the tank seems to be nearly exhausted Carry out replenishment of KCI solution as follows 1 Close the valves to shut off the low of measured solution see Figure 3 1 f
21. n each core wire then connect each core wire to the corresponding terminal CONVERTER SENSOR F2 14 ai Figure 2 14 Connecting Sensor Cable In case of the PH8TBG 4 Mount the cable gland in the cable inlet hole IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt 2 Installation gt 2 1 2 Put the nut in place and screw it onto the main body sufficiently At this time loosen the cap so that the cable is not twisted After fixing the main body tighten the cap to keep moisture out of the equipment However if the cap is screwed up too tight the cable will be damaged Attach the nut in the e TT direction shown here Nm so that it engages UA the detent groove Nut Gasket Main unit Cap F2 15 ai Figure 2 15 Cable Gland 5 After completing the cable connections replace the box cover securely thus preventing moisture from getting into the case 2 3 3 Connecting Sensor Cable to Two wire pH Transmitter To connect the sensor cable to the two wire pH transmitter proceed as follows 1 Loosen the four screws that tighten the transmitter cover Then remove the transmitter cover 2 Connect the sensor cables to the relevant terminals of the transmitter First remove the nut from the cable gland Insert the cable into the right opening for the wiring Then pass the cable through the nut Connect the individual cable conductors to the relevant terminals correctly by refe
22. o just before the solution overflows through the liquid junction mounting hole Use a 3 3 mol L KCI solution a higher concentration of KCI or KCI powder for this application 1 When the liquid junction 2 When the liquid junction is to be removed is to be installed NG F3 4 ai Figure 3 4 Replacing Liquid Junction 3 2 3 Replacing O rings for Glass Electrode As the inside of the glass electrode mounting hole must have high insulation resistance fluorocarbon rubber O rings with superior chemical and heat resistance are used for sealing Except for special uses this O ring does not need individual replacement If any damage which might cause problems is detected in the O ring as a rule replace it along with the glass electrode Although the O ring can be replaced individually if the O ring deteriorates much faster than the glass electrode it is recommended that the whole glass electrode be replaced to avoid possible deterioration of the O ring inside the glass electrode For individual replacement of the O ring use the one recommended by Yokogawa When installing the O ring wind a slip of paper or tape around the thread part on the glass electrode so as not to scratch the O ring Otherwise such scratches may damage its sealing properties For ordering refer to the Customer Maintenance Parts List CMPL at the end of the book to check the appropriate part number of the O ring IM 12B7J1 01E 9th Edition N
23. onsibility for damage due to a specific application Yokogawa Electric will not bear responsibility when the user configures the product into systems or resells the product Maintenance service and supplying repair parts will be covered for five years after the production ends For repair for this product please contact the nearest sales office described in this instruction manual IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt CONTENTS gt vii Model PH8EFP KCI Filling type pH Sensor IM 12B7J1 01E 9th Edition CONTENTS 4 INTRODUCTION ocaso i 4 For the safe use of this equipment rrrnnvvvrnnnnnvvnnnnnnnvnnnnnnvvnnnnnnnvnnnnnnnnvnnnnnn ii Y After sales Warranty ee v 1 SPECHICAUON ce 1 1 1 1 Standard Specifications 22sm220nnn0annnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnn 1 1 1 2 Model and Suffix codes nanana 1 3 1 3 External DIMENSIONS ici omita 1 5 2 InstallatioM ii aaaeeeaa ennaa aieas aaaea n aa Enan i aaas 2 1 2 1 Preparation for Installation rsnvnnnnvnnnnvrnnnvrnnnnnnnnnvnnnnvnnnnvnnnnnnnnnnnnnnnnnnnnnnnnner 2 1 2 1 1 Unpacking and Inspection 1111 aanak 2 1 2 1 2 Mounting Glass Electrode rrnanvnnnvnnnvvnnvnnnvvnnvvnnvennvnnnvnnsrnnsvnnsvenrnnn 2 2 2 1 3 Mounting Liquid Junction sissies vances 2 2 2 1 4 Installing Holder naaa a 2a bei ii sbudnkrindabidie 2 2 2 1 5 Installing Associated Instruments rrernrnonrnnnrnnnrnnnrnnnrnnnrnnnrnnn
24. or cable so that the sensor tip projects 20 to 30 mm out from the pipe end when the pH sensor is suspended in the guide pipe as shown in Figure 2 4 NOTE If the sensor tip does not project out from the pipe end the measured value may not respond promptly to the pH variations of the measured solution This may cause problems for pH measurement and control On the other hand if the sensor tip projects too far from the pipe end the force on the sensor may damage the sensor cable from scraping it against the pipe IM 12B7J1 01E 9th Edition Nov 10 2015 00 Sensor Cable Cable Clamp Attaching Stopper Sensor Cable 2 inch 60 5 mm O D Stopper PP a Mounting Pipe Arm Pipe Guide Pipe Y 20 to 30 mm A pH Sensor Figure 2 4 Mounting Sensor in Guide Pipe lt 2 Installation gt IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt 2 Installation gt 2 5 2 2 2 Installing Sensor in PH8HS Submersion Holder To install the sensor in the submersion holder proceed as follows 1 Pass the sensor cable through the sensor holder If the submersion holder remains installed remove the sensor holder in any case For a pipe mounting submersion holder without a cleaner loosen the sensor holder nut to remove the holder Right angled Pipe Clamp Nut Arm Pipe Sensor Holder Removal of Sensor Holder Arm Pipe used with option MS1 or MS2 Bracket Sensor Holder Sensor Holde
25. or repair under warranty provide us with the model name and serial number and a description of the problem Any diagrams or data explaining the problem would also be appreciated e f we replace the product with a new one we won t provide you with a repair report e Yokogawa warrants the product for the period stated in the pre purchase quotation Yokogawa shall conduct defined warranty service based on its standard When the customer site is located outside of the service area a fee for dispatching the maintenance engineer will be charged to the customer In the following cases customer will be charged repair fee regardless of warranty period Failure of components which are out of scope of warranty stated in instruction manual Failure caused by usage of software hardware or auxiliary equipment which Yokogawa Electric did not supply Failure due to improper or insufficient maintenance by user e Failure due to modification misuse or outside of specifications operation which Yokogawa does not authorize Failure due to power supply voltage frequency being outside specifications or abnormal Failure caused by any usage out of scope of recommended usage Any damage from fire earthquake storms and floods lightning disturbances riots warfare radiation and other natural changes Yokogawa does not warrant conformance with the specific application at the user site Yokogawa will not bear direct indirect resp
26. ov 10 2015 00 lt 3 Maintenance on operation gt 3 4 O ring 9 12 O ring 6 9 Screw Before installing wind a slip of paper or tape around the thread part to prevent scratches Figure 3 5 Installing the O ring IM 12B7J1 01E 9th Edition Nov 10 2015 00 Customer Model PH8EFP Maintenance KCI Filling type pH Sensor Parts List Name Plate Fork type Pin type 8 9 through 11 8 9 through 11 ltem Part No Qty Description Item Part No Qty Description 1 Below 1 Body Assembly 11 1 Bracket see GS 12B07B02 E 2 K9142EJ 1 Cap 12 Below Glass Electrode Assembly 3 Below 1 KCI Filling Tube K9142TN 1 for general use K9142PF Length 3m K9319NA 1 for PH8EFP PF K9142PG Length 5m K9319NC 1 for PH8EFP HA and PF K9142NH Length 7m For K9142TP 1 for Approved Under the K9142NJ Length 10 m general Japanese Measurement Law K K9142NK Length 15 m use K9319NB 1 for PH8EFP PF Approved Law K9142NL Length 20 m K9142TU 1 for High Alkali of PH8EFP HA L9901MB Length by meter max 100 m Below O Ring K9142QR 1 for general use 6 mm ID x 9 mm OD K9142PJ Length 3m K9142QS 1 for general use 9 mm ID x 12 mm OD K9142PK Length 5m K9319RB 1 for PH8EFP PF 6 mm ID x 9 mm OD K9142NM Length 7m For K9319RC 1 for PH8EFP PF 9 mm ID x 12 mm OD K9142NN Length 10 m medium K9142NP Length 15 m pressure 13 Below Junction Assembly K9142NQ Length 20 m K9142TH 1 for general use L9901CA Length b
27. p Sensor Holder Pipe Sensor Cable KCI solution supply tube Insert the sensor and cable and KCI solution supply tube Sponge Remove Sensor Body Protector Figure 2 8 Installing the Sensor Cable Connect the sensor cable to the associated instrument correctly by referring to Section 2 3 Mount the liquid junction in the sensor body Peel off the seal attached to the liquid junction mounting hole on the sensor body Screw the liquid junction gently two or three turns into the hole If specified a reserve tank containing 250 mL KCI solution and mounting hardware to hold this tank are supplied with the PH8EFP pH sensor Attach the mounting hardware to the pipe 2 inch Connect the reserve tank to the KCI solution supply tube of the sensor Remove the cap from the tank and screw the tube connector securely into the tank Supply KCI solution to the sensor First mount the reserve tank on the mounting hardware with the tube connection part directed downwards Using the pin supplied with the tank make several holes in its top see Figure 2 3 Stand the sensor upside down at a position lower than the reserve tank as shown in Figure 2 3 so that KCI solution flows from the tank into the sensor When the KCI solution fills the sensor and overflows from the liquid junction mounting hole securely screw the liquid junction into the mounting hole For the Big volume reserve tank refer to page 2 9 to 2 10 6 Screw the pro
28. pH4 Reagents 24 bags each bag containing powder for 500mL solution pH7 X 12 bags and pH4 X 12 bags and two 500mL polyethylene bottles Style StyleA Option 2 Sensor stand with mounting bracket for 2 inch pipe KCI solution one 250 mL polyethylene bottle KCI powder three bags 250 mL solution each Thermometer 0 to 100 C 1 2 Including the following Two 200 mL polyethylene cups One cleaning bottle Either KCLL or KCLP is required for PH8EFP 00 00 TT2 IM 12B7J1 01E 9th Edition Nov 10 2015 00 Consumables General purpose K9142TN lt 1 Specification gt Remarks One K9319NA One for PF option Glass electrode Certified version K9142TP One for K option K9319NB One for K PF option High alkali K9142TU One for HA option K9319NC One for HA PF option General purpose Junction Teflon K9142TH One K9319QA K9142HW One for PF option One for TF option K9319QB One for TF PF option KCI solution 3 3mol L K9084LP Six 250 mL polyethylene bottles Buffer solution for calibration pH 4 K9084LL Six 250 mL polyethylene bottles Buffer solution for calibration pH 7 K9084LM Six 250 mL polyethylene bottles Buffer solution for calibration pH 9 Powder for buffer solution pH 4 Powder for buffer solution pH 7 K9020XB 12 bags each for preparation of 500 mL Powder for buffer solution p
29. pliance with the simple apparatus requirements CMPL 12B05J01 02E revised to 11th edition Jun 2013 7th Edition Page 2 1 to 2 2 Some revision of Sec 2 1 1 and 2 1 2 addition of the cap to keep the glass electrode wet Page 3 1 to 3 4 Deletion of Sec 3 1 1 how to keep the glass electrode wet moved to Sec 2 1 2 and following section no and page layout changed CMPL 12B05J01 02E revised to 10th edition because some P N addition of O ring for PF option Jul 2011 6th Edition Page layout changed by InDesign Page i Reference manual number of FLXA21 added Page 1 3 M4 ring terminals for FLXA21 added to MS code Page 1 5 M4 ring terminals added to external dimensions CMPL 12B05J01 02E revised to 9th edition Note for 500 ml KCI tank modified Mar 2010 5th Edition Page 3 1 to 3 3 Section 3 1 1 has been changed to Advance Preparation and section order change as following 3 1 2 Calibrating pH Sensor Using Buffer Solutions 3 1 3 Pressurizing Reserve Tank 3 1 4 Replenishment of KCI Solution 3 1 5 Cleaning Glass Electrode and Liquid Junction Some of Section 3 2 1 Replacing Glass Electrode modified Page 3 4 Changing page of Section 3 2 3 Replacing O rings for Glass Electrode CMPL 12B05J01 02E The CMPL 12B05J01 02E has been revised to 8th edition Apr 2008 4th Edition M3 ring terminals added for PH450G CMPL12B05J01 02E revised to 7th edition Jul 2006 3rd Edition All over revised Feb 1996 2nd Edition Some er
30. r Nut F2 5 ai Removal of Sensor Holder Stainless Bracket used with option MS3 or MS4 Figure 2 5 Removal of Sensor Holder for Pipe Mounting Sensor without Cleaner For a flange mounting submersion holder without a cleaner remove the sensor holder by loosening the two bolts securing the sensor holder to the flange see Figure 2 6 Fixing Bolt Flange F2 6 ai Figure 2 6 Removal of Sensor Holder for Flange Mounting Sensor without Cleaners IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt 2 Installation gt 2 6 Clamp Screw _ Cleaner Holder Sensor Holder F2 7 ai Figure 2 7 Removal of Sensor Holder with Cleaner To install the sensor cable in the sensor holder first remove the protector screwed onto the sensor holder end and then remove the protective foam piece for shipping thus it is not necessary after the sensor is installed in the holder Pass the sensor cable through the O ring then attach the O ring to the sensor flange see Figure 2 7 When passing the sensor cable through the holder if the inside of the holder is dirty or wet take special care to keep the cable dry by covering the sensor cable end with a polyethylene bag or the like For details to install the sensor onto a holder refer to relevant IMs IM 12B7J1 01E 9th Edition Nov 10 2015 00 Pull out the sensor cable and KCI solution supply tube lt 2 Installation gt 2 7 Waterproof Cap Cover Waterproof Ca
31. rnnnnnenn 2 2 2 2 Requirements for mounting the pH sensor rsevrnrnvnnnnvnnnnvnnnnnnnnnnnnnnnnnnennnnnner 2 3 2 2 1 In case of installing the PH8HG Guide pipe Holder 2 3 2 2 2 Installing Sensor in PH8HS Submersion Holder 2 5 2 2 3 Installing Sensor in Flow through Holder sreanvnrnvnnnvnrnrnnnrnnnrnnnrnenr 2 8 2 3 pH Sensor Cable Wiring Procedure uunennnennnennnennnennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 2 11 2 3 1 Processing of Cable Inlet Hole 2 422444404s00n nn nn 2 11 2 3 2 Connecting Sensor Cable 2 s4ssnennnennnnnnnnnnnnnnnnnnennnnn nn 2 11 2 3 3 Connecting Sensor Cable to Two wire pH Transmitter 2 12 2 3 4 Connecting Sensor Cable to Four wire pH Converter 2 13 3 Maintenance on operation urn222020n000nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nun 3 1 3 1 Operation and Periodic Maintenance rrsrnnnnvnnnnvnnnnvnnnnnnnnnnvnnnnvnnnnnnnnnnnnnnnnnnnn 3 1 3 1 1 Calibrating pH Sensor Using Buffer Solutions ee 3 1 3 1 2 Pressurizing Reserve Tank smranrnannnanvnanvnanvnanvnanvnanvnanvnanvnanvnsnvnanen 3 1 3 1 3 Replenishment of KCI Solution 2404424044 440 3 1 3 1 4 Cleaning Glass Electrode and Liquid Junction 3 2 IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt CONTENTS gt viii 3 2 Replacing Consum
32. ror corrected Dec 1995 1st Edition Newly published If you want to have more information about Yokogawa products you can visit Yokogawa s home page at the following web site Home page http www yokogawa com an IM 12B7J1 01E 9th Edition Nov 10 2015 00
33. rring to the markings on the individual conductors For details refer to relevant IMs Sensor cable Figure 2 16 Connecting Sensor Cable to Two wire pH Transmitter IM 12B7J1 01E 9th Edition Nov 10 2015 00 2 3 4 lt 2 Installation gt 2 1 3 3 Install the cable gland in the wiring hole as follows Pass the tip of the cable gland into the opening and completely tighten the gland with the nut inside the case After tightening the gland secure the cap properly to prevent moisture from getting into the case Caution Do not overly tighten the cap Otherwise the cable may be damaged 4 After completing the cable connections replace the transmitter cover securely thus preventing moisture from getting into the case Connecting Sensor Cable to Four wire pH Converter To connect the sensor cable to a Four wire pH converter proceed as follows 1 Loosen the four screws that tighten the converter cover Then open the converter cover 2 Connect the sensor cables to the relevant terminals of the converter First remove the nut from the cable gland Insert the cable into the right opening for the wiring Then pass the cable through the nut Connect the individual cable conductors to the relevant terminals correctly by referring to the markings on the individual conductors For details refer to relevant IMs EE GEBE El Wiring Terminal Board
34. stabilized at 20 C measures a solution at 20 C CAUTION Select the material of wetted parts with careful consideration of process characteristics Inappropriate selection may cause leakage of process fluids which greatly affects facilities Considerable care must be taken particularly in the case of strongly corrosive process fluid such as hydrochloric acid sulfuric acid hydrogen sulfide and sodium hypochlorite If you have any questions about the wetted part construction of the product be sure to contact Yokogawa IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt 1 Specification gt 1 2 Model and Suffix codes pH Sensor Model Suffix Code Description PH8EFP srnvnnnvnnnnnennnnnnvnnennnnnnnnnennnenen A KCI Filling Type pH Sensor Cable Length 3m and KCI Tube 5m Length ma 7m Solution OATN an Titanium Ground Tip PHO anan Hastelloy C 10m 15m IE aaa aha 20m KCI Reserve Tank 1 For general purpose 250mL solution inlet For medium pressure 2 Big volume tank With 500 mL tank For maintenance for TT1 TT3 MAR For maintenance for TT2 a eal aaah Always N pH Measuring System For PH200 PH400 3 For PH202 FLXA202 FLXA21 4 For FLXA202 FLXA21 10 For PH100 5 For PH450G PH202 TB 9 Style A O ring PF Special glass electrode HA Special junction
35. tector to fix the sensor to the holder In this case remove the protective cap and secure the protector so that the flange of the sensor compresses the O ring firmly about the installation method IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt 2 Installation gt 2 8 pH Sensor O ring Protector F2 9 ai Figure 2 9 Installing Sensor in Submersion Holder 7 Close the waterproof cap and attach the holder to the arm pipe flange or cleaner holder completely 2 2 3 Installing Sensor in Flow through Holder To install the sensor in a flow through holder proceed as follows 1 Connect the sensor cable to the associated instrument First remove the sensor fixing nut and pass the sensor cable through the nut N ee TS pH Sensor lla f j Sensor Fixing Nut Y Rol sed w Figure 2 10 Preparation for Sensor Cable Connection Properly connect the sensor cable by referring to Section 2 3 2 Mount the liquid junction on the sensor body Peel off the seal covering the liquid junction mounting hole in the sensor body Screw the liquid junction softly into the hole by turning it for two or three turns IM 12B7J1 01E 9th Edition Nov 10 2015 00 lt 2 Installation gt 2 9 3 If specified a reserve tank containing 250 mL solution and mounting hardware to hold this tank or a medium pressure reserve tank are supplied with the PH8EFP pH sensor Attach the mounting hardware for general purpose reserv
36. y meter max 100 m K9319QA 1 for PH8EFP PF K9142HW 1 for PH8EFP TF 4 L9813UG 3or5 Clamp K9319QB 1 for PH8EFP TF and PF 5 K9084KQ 1 Bottle for general use 250mL K9142UH 1 for PH8EFP CJ Suffix Code TT1 K9142UL 1 for PH8EFP CJ and PF Below O Ring 6 K9084KV 1 Connector Assembly for general use K9142QR 1 for general use 6 mm ID x9 mm OD 7 K9084CG 1 Nut K9319RB 1 for PH8EFP PF 6 mm ID x 9 mm OD 8 K9142VE 1 Holder Assembly 9 3 B H Screw M4x18 14 K9142VS 1 Tank assembly for use 500 mL 10 3 Nut Suffix Code TT3 All Rights Reserved Copyright O 1987 Yokogawa Electric Corporation CMPL 12B05J01 02E YOKOGAWA 4 Subject to change without notice 11th Edition Mar 2015 YK Yokogawa Electric Corporation Medium Pressure KCI Reserve Tank Assembly for Suffix Code TT2 K9142VG To KCI Filling Tube Item Part No Qty Description 1 K9142VL 1 Tank Assembly 2 K9142VJ 1 Block 3 K9142VK 1 Block 4 G9303AE 1 O Ring 6 L9835DD 1 Joint 7 L9867BS 1 Pressure Gauge 8 K9142RU 1 Label 9 K9142VP 1 Bracket 10 K9142EJ 1 Cap 11 K9142VQ 1 Ring 12 L9826AL 1 Bracket 13 D0117XL A 1 U Bolt CMPL 12B05J01 02E 11th Edition Mar 2015 YK Revision Information Title Model PH8EFP KCI Filling type pH Sensor Manual No IM 12B7J1 01E Oct 2015 9th Edition Added FLXA202 Pi P1 1 P1 2 P1 3 Unification ot the material name P1 1 P1 2 P1 3 Jul 2015 8th Edition Page ii to iii Added a postscript about Com
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