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A B B ME A SUR EMENT & A N A LY TIC S | USER GU IDE | IM/A P3 0 0 R E V. J

AP300

Combination pH/Redox (ORP) sensors

Measurement made easy

Introduction

The AP300 range of pH/Redox sensors offers a 
reliable and cost-effective solution for most 
industrial pH applications. It is the perfect starting 
point for pH or Redox measurements.

Combining measurement, reference and 
temperature compensation elements in a single 
unit, the AP300 is an economical solution for a wide 
variety of industrial applications; including water, 
food, pharmaceutical and chemical.

Sales

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Summary of Contents for AP300

Page 1: ...s a reliable and cost effective solution for most industrial pH applications It is the perfect starting point for pH or Redox measurements Combining measurement reference and temperature compensation elements in a single unit the AP300 is an economical solution for a wide variety of industrial applications including water food pharmaceutical and chemical Sales Service ...

Page 2: ...1 AP301 Sensors 8 2 1 2 AP302 3 Sensors 9 2 1 3 AP304 5 Sensors 10 3 Electrical Connections 12 3 1 Sensor Connections 12 3 2 Extension Cables 13 4 Calibration 14 4 1 pH Sensor 14 4 2 Redox ORP Sensor 14 5 Maintenance 15 5 1 General Cleaning 15 5 1 1 General Sludge and Loosely Adhering Matter 15 5 1 2 Heavy Non Greasy Deposits 15 5 1 3 Greasy or Organic Deposits 15 5 2 Fault Finding 15 5 3 Storage ...

Page 3: ... purpose insertion flow through or immersion style The sensor body is molded from chemically resistant PPS Ryton The sensor can be adapted to 1 inch fittings by a threaded Ryton twist lock adaptor An optional PVC electrode guard protects the electrode in immersion applications Dimensions in mm in Fig 1 1 AP301 Sensors and Dimensions 165 1 6 50 33 0 1 30 120 0 4 73 2 5 0 10 64 5 2 54 24 4 0 96 26 7...

Page 4: ...ral protection for normal bulb style glasses Dimensions in mm in Fig 1 2 AP302 3 Sensors and Dimensions 28 0 1 1 127 0 5 00 22 2 0 80 95 0 3 74 120 0 4 73 238 1 9 38 71 1 2 80 Rear of Sensor and Cable to be Sealed in Conduit or Pipe Customer Supplied 3 4 in Coupling Customer Supplied AP302 Flush Sensor AP303 Notched Sensor Immersion Applications AP303 Notched Sensor Flow Applications AP303 Notched...

Page 5: ...a standard 11 4 in full port or 11 2 in ball valve Ease of disassembly aids sensor replacement Connection to the ball valve is by compression fitting which is available in either hand tight with 11 4 in NPT threads or wrench tight with 1 in NPT threads AP304 models have no sensor guard flush AP305 models have a notched sensor guard Fig 1 3 AP304 Ball Valve Dimensions Dimensions in mm in Fig 1 4 AP...

Page 6: ...ush Sensor 11 4 in NPT Full Port Ball Valve Optional Compression Fitting Hand 316 Stainless Steel 11 4 in NPT Dia 3 4 in Conduit Port 3 4 in NPT PVDF Back Piece Anti Blowout Lip Sensor Body No 019 Viton O Rings 316 Stainless Steel Sheath Replacement AP305 Sensor Detail Rear Extension Electrode Protection Tips Viton O Rings No 019 Viton O Rings Stainless Steel Sheath Sensor Screws into Rear Extensi...

Page 7: ...the sensor is to be expected e g fibrous coatings Use an in line flush sensor body with flat glass sensor mounted at 90 for optimal self cleaning Fig 2 1 Recommendations for Fouling Applications Note The flow of sample passing the sensor helps to keep the sensor clean Sensors should be positioned such that they are always immersed in the sample Not for fouling applications For fouling applications...

Page 8: ...us measurement Most of the time this can prevented by rotating the sensor to ensure that it is fully immersed in the sample Immersion Type 1 The use of an immersion guard is recommended to protect the glass sensor 2 Levels in many tanks sumps and channels vary The sensor must be immersed to the lowest representative level to ensure the sensor is always immersed in sample 3 Sensor cables on immersi...

Page 9: ...it is fully immersed in the sample Immersion Type 1 Levels in many tanks sumps and channels vary The sensor must be immersed to the lowest representative level to ensure it is always immersed in sample 2 Sensor cables on immersion sensors should be of adequate length for the BNC to be attached to an extension cable outside the immersion area Fig 2 3 Installing the AP302 3 5 T C Connector if applic...

Page 10: ...e due to pressure surges or water hammer Insert the sensor only as far as necessary to achieve representative flow Over insertion may damage the sensor and or cause slow response Fully retract the sensor before closing the valve and fully open the valve before inserting the sensor Fig 2 4 Installing the AP304 5 Ball Valve and Compression Fitting 5 T C Connector if applicable Male BNC Cable Rear of...

Page 11: ...he sensor mark off total onto the shaft of the sensor 5 Insert the sensor into the ball valve Tighten onto the ball valve on reducer 6 Open the ball valve fully and gently push the sensor into the valve until the mark made at 4 reaches the compression fitting 7 Tighten the outer compression joint manually or using a wrench depending on type of fitting chosen 8 A mark can also be made distance B fr...

Page 12: ...e compensation if applicable Fig 3 1 Cable Terminations Tagged Sensor Terminations for Direct Connection to Transmitter pH with temperature compensation BNC T C Sensor Terminations for Junction Box Connection to Extension Cable pH with temperature compensation Male BNC Male BNC pH without temperature compensation pH and Redox ORP without temperature compensation Glass Electrode Reference Electrode...

Page 13: ...nector Female BNC to Sensor or Junction Box pH without temperature compensation Part numbers 5 m 16 ft 1015 160 10 m 32 ft 1015 161 20 m 64 ft 1015 162 30 m 96 ft 1015 163 Tagged Pin Extension Cable 5 core to AX400 Conduit Customer Supplied 3 4 in NPT Junction Box pH Sensor Connections pH Sensor Adaptor 1 in NPT 1 in Flow Cell Part No 7670046 1 in Pipe Flow Application Sample ...

Page 14: ...s the process Refer to the instruction manual for the pH transmitter for full details of the calibration procedures 4 2 Redox ORP Sensor When the sensor has been correctly connected and all electrical connections have been made to the associated Redox ORP transmitter it is ready for calibrating Follow the calibration procedure in the transmitter instruction manual For sensors that are connected to...

Page 15: ... the extension cable if used No response to pH buffer or sample 1 Check the sensor has been correctly wired to the transmitter as detailed in Section 3 1 page 12 and the relevant transmitter instruction manual 2 Check the glass sensor membrane is not broken or cracked Unstable readings or drift 1 Check the sensor has been correctly wired to the transmitter as detailed in Section 3 1 page 12 and th...

Page 16: ...uires cable gland 4TB5023 0162 Cable gland 4TB9515 0244 1 in NPT for adapter 1 in NPT for process connection 7670 046 1 in NPT for adapter 1 in BSPT for process connection 7670 043 1 in BSPT to 1 2 in BSPT polypropylene 7601 420 1 in BSPT to 1 2 in NPT polypropylene 7601 430 Tagged pin extension cables 5 core1015 16X for AX460 and AX466 5 m 16 ft 10 m 32 ft 20 m 64 ft 30 m 96 ft 1015 160 1015 161 ...

Page 17: ...Reference junction Porous PTFE DS AP300 EN Rev I Standard yellow glass 0 to 14 pH Low temperature blue glass 0 to 10 pH Body 0 to 105 C 32 to 221 F Bulb glass 0 to 105 C 32 to 221 F Flat glass 5 to 100 C 41 to 212 F Blue glass 5 to 60 C 23 to 140 F Redox ORP 0 to 105 C 32 to 221 F pH electrode Glass Redox ORP electrode Platinum Junction PTFE Body AP301 PPS Ryton Body AP302 3 and AP304 5 PVDF Kynar...

Page 18: ...18 IM AP300 Rev J AP300 Combination pH Redox ORP sensors Notes ...

Page 19: ...AP300 Combination pH Redox ORP sensors IM AP300 Rev J 19 ...

Page 20: ...echnical changes or modify the contents of this document without prior notice With regard to purchase orders the agreed particulars shall prevail ABB does not accept any responsibility whatsoever for potential errors or possible lack of information in this document We reserve all rights in this document and in the subject matter and illustrations contained therein Any reproduction disclosure to th...

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