ABB AX400 Series User Manual
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ABB AX400 Series User Manual

Single and dual input analyzers for ph/redox (orp)
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A B B M E A S U R E M E N T & A N A LY T I C S | U S E R G U I D E | I M/A X 4 P H R E V. P
AX416, AX436, AX460, AX466 and AX468
Single and dual input analyzers for pH/Redox (ORP)
For more information
—
AX400 series
pH/Redox (ORP)
Further publications are available for free download
analyzers
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www.abb.com/analytical
or by scanning this code:
Data Sheet
AX460, AX466 and AX416
Single and dual input analyzers for pH/Redox (ORP)
User Guide Supplement | PID control
AX460
Single input pH/Redox (ORP) analyzer
User Guide Supplement | PROFIBUS®
AX400 series
Single and dual input analyzers
Measurement made easy
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DS/AX4PH-EN
IM/AX4PID
IM/AX4/PBS

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  • Page 1 A B B M E A S U R E M E N T & A N A LY T I C S | U S E R G U I D E | I M/A X 4 P H R E V. P AX416, AX436, AX460, AX466 and AX468 Single and dual input analyzers for pH/Redox (ORP) Measurement made easy For more information — AX400 series pH/Redox (ORP) Further publications are available for free download analyzers from: www.abb.com/analytical...
  • Page 2 Electrical safety Health and safety This equipment complies with the requirements of CEI/IEC To ensure that our products are safe and without risk to health, 61010-1:2001-2 ‘Safety Requirements for Electrical Equipment the following points must be noted: for Measurement, Control and Laboratory Use’. If the •...

  • Page 3: Table Of Contents

    6 Installation ..............44 System Description ..........2 Siting Requirements ..........44 PID Control .............. 2 Mounting ............... 45 AX400 Series Analyzer Options ........ 2 6.2.1 Wall-/Pipe-mount Analyzers ....... 45 6.2.2 Panel-mount Analyzers ....... 46 Connections, General ..........47 2 Operation ................. 3 6.3.1 Relay Contact Protection...

  • Page 4: Introduction

    Table 1.1 shows the range of configurations that are possible for Differential pH input is designed for use with pH electrode the AX400 Series analyzers. The analyzer detects the type of systems that incorporate a solution earth (ground) rod. The...

  • Page 5: Operation

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 2 Operation 2 Operation 2.2.1 Membrane Key Functions 2.1 Powering Up the Analyzer Warning. Ensure all connections are made correctly, especially to the earth stud – see Section 6.3, page 47. 1.
  • Page 6 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 2 Operation OPERATING PAGE VIEW SETPOINTS VIEW OUTPUTS VIEW HARDWARE VIEW SOFTWARE VIEW LOGBOOK VIEW CLOCK A1: Setpoint Analog Output 1 Sensor A Module AX400/2000 Issue Alarms Date 01:01:03...
  • Page 7 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 2 Operation CONFIG.ALARMS Config. Alarm 1 Config. Alarm 2 Config. Alarm 3 Config. Alarm 4 Config. Alarm 5 A1: Type A2: Type A3: Type A4: Type A5: Type A1: Assign A2: Assign...

  • Page 8: Operating Page

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 2 Operation 2.3 Operating Page 2.3.1 Single Input pH Measured Values 7. 0 0 24. 4 Deg.C Temperature. Monitoring pH Measured Millivolts Millivolts. Millivolts % Slope and pH Check Value 100.

  • Page 9: Dual Input Ph

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 2 Operation 2.3.2 Dual Input pH Measured pH 7. 0 0 Sensor A. 7. 0 0 Sensor B. Monitoring pH Measured Temperature 25. 6 Deg.C Sensor A. 24.

  • Page 10: Single Input Redox (Orp)

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 2 Operation 2.3.3 Single Input Redox (ORP) Measured Values Millivolts. 25. 6 Deg.C Temperature. Redox (ORP) Offset – Sensor A Displays the offset value for the sensor set in –...

  • Page 11: Dual Input Redox (Orp)

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 2 Operation 2.3.4 Dual Input Redox (ORP) Measured Millivolts Sensor A. -256 Sensor B. Note. If for both Sensor A and Sensor B is set to (Section 5.3), the Dual Redox Probe Type...

  • Page 12: Dual Input Ph And Redox (Orp)

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 2 Operation 2.3.5 Dual Input pH and Redox (ORP) Measured pH and Millivolts 7. 0 0 Sensor A. -256 Sensor B. Note. The for Sensors A and B can be set to any combination of pH/Redox (ORP) Probe Type Redox...

  • Page 13: Wash Function

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 2 Operation 2.3.6 Wash Function Note. The Wash function is available only if is set to – see Section 5.5, page 34. A3: Type Wash Wash Function Manual Wash function off.

  • Page 14: Operator Views

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 3 Operator Views 3 Operator Views 3.1 View Set Points Note. The parameter names and units of measurement displayed in the page depend on the settings View Set Points Probe Type for Sensors A and B –...
  • Page 15 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 3 Operator Views Note. The menu displayed when pressing the key from the Operator View pages depends on analyzer configuration, i.e.: Single Input Analyzers SENSOR CAL. set to Probe Type set to...

  • Page 16: View Outputs

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 3 Operator Views 3.2 View Outputs Theoretical Analog Output There are up to four analog outputs, each showing information for one sensor. ----- Note. Analog outputs 3 and 4 available only if option board fitted and analog features enabled –...

  • Page 17: View Software

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 3 Operator Views 3.4 View Software ----- VIEW SOFTWARE Issue Shows the version number of the operating software. 1. 0 0 AX400/2000 Issue Option board fitted and analog features enabled (Section 7.3) and set to Logbook VIEW LOGBOOK...

  • Page 18: View Logbook

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 3 Operator Views 3.5 View Logbook Note. The View Logbook function is available only if the option board is fitted and analog features enabled (see Section 7.3, page 57) and is set to (see Section 5.9, page 41).
  • Page 19 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 3 Operator Views View Logbook Errors Alarms Use the keys to access the logbook. Power Cals ----- Power Note. If no entries are stored in the logbook, the display shows Power No More Entries...

  • Page 20: View Clock

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 3 Operator Views 3.6 View Clock Note. The View Clock function is available only if the option board is fitted and analog features enabled – see Section 7.3, page 57.

  • Page 21: Setup

    Buffer Type User TECH. MERCK Buffer Type NIST Select the relevant type of buffer solution (see Appendix A): ----- – ABB supplied buffer solution. NIST Buffer Type – NIST buffer solution. – DIN 19266 buffer solution. MERCK – MERCK buffer solution TECH –...
  • Page 22 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 4 Setup Set Buffer 1 Set the pH value of the buffer 1 solution – see Appendix A for pH tables. ----- 4.O1pH Set Buffer 1 Set Buffer 2 Set the pH value of the buffer 2 solution.

  • Page 23: Set Up User Defined Buffers (Ph Only)

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 4 Setup 4.1.2 Set Up User Defined Buffers (pH Only) Buffer Type User 15. 0 Solution A: Enter point 1 (to 5) Deg.C are shown alternately on the upper display line. Using the Deg.C Adjust 0.

  • Page 24: Adjust Offset (Redox/Orp Only)

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 4 Setup 4.1.3 Adjust Offset (Redox/ORP Only) Calibrate Sensor A ----- Sensor Cal. A Sensor B (dual input analyzers only) calibration is identical to Sensor A calibration. Sensor Cal.

  • Page 25: Automatic, Single- And Two-Point Calibration (Ph Only)

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 4 Setup 4.1.4 Automatic, Single- and Two-Point Calibration (pH Only) Sensor A: Buffer Method (pH probes only) Auto Select the type of automatic calibration required: ----- Auto 1-Pt 1-Pt –...
  • Page 26 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 4 Setup A: Buffer Method Auto 2-Pt 9. 1 8 Calibrate Buffer 2 (Two-Point Calibration only) Immerse Sensor A in the second buffer solution. 20. 0 Deg.C A: Immerse Buf.2 Press the...

  • Page 27: Manual, Single- And Two-Point Calibration (Ph Only)

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 4 Setup 4.1.5 Manual, Single- and Two-Point Calibration (pH Only) Sensor A: Buffer Method (pH probes only) Select the type of manual calibration required: ----- Man 1-Pt –...
  • Page 28 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 4 Setup A: Buffer Method Man 2-Pt 9. 1 8 Calibrate Buffer 2 (Two-Point Calibration only) Immerse Sensor A in the second buffer solution. 20. 0 Deg.C are shown alternately on the upper display line.

  • Page 29: Grab Calibration (Ph Only)

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 4 Setup 4.1.6 Grab Calibration (pH Only) Sensor A: Buffer Method (pH probes only) Select Grab calibration method. ----- Grab A: Buffer Method 9. 1 8 Adjust Value are shown alternately on the upper display line.

  • Page 30: Programming

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 5 Programming 5 Programming 5.1 Security Code Note. This frame is displayed only if is not set to zero – see Section Alter Sec. Code 5.8, page 41. 0000 Enter the required code number (between 0000 and 19999), to gain access to the configuration pages.

  • Page 31: Configure Display

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 5 Programming 5.2 Configure Display ----- CONFIG. DISPLAY Set Language Sets the language to be used on all displays. ----- Set Language Language Page Use the keys to select the required language.

  • Page 32: Configure Sensors

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 5 Programming 5.3 Configure Sensors ----- CONFIG. SENSORS Configure Sensor A ----- Config. Sensor A Sensor B configuration (dual input analyzers only) is identical to Sensor A Config.
  • Page 33 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 5 Programming A: Probe Type pH Electrode Type Antim. Select the type of pH electrode used, Glass or Antimony. ----- Glass A: Electrode Temperature Compensation Select to enable the analyzer to compensate automatically for fluctuations in Auto Manual...
  • Page 34 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 5 Programming Solution Temperature Compensation Select to enable compensation for solution temperature effects referenced to ----- 25 ºC. A: Sample Comp. Sample Coefficient is set to , enter the temperature coefficient of the sample, in pH/ºC, Sample Comp.

  • Page 35: Configure Diagnostics

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 5 Programming 5.4 Configure Diagnostics Note. The Configure Diagnostics function is applicable only if for Sensor A and/or Sensor B is set to – see Section Diff.

  • Page 36: Configure Alarms

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 5 Programming 5.5 Configure Alarms ----- CONFIG. ALARMS Configure Alarm 1 ----- Config. Alarm 1 Alarms 2 and 3 configuration (and Alarms 4 and 5 if option board fitted and analog Config.
  • Page 37 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 5 Programming Alarm 1 Failsafe Select to enable failsafe action, otherwise select ----- See also Fig. 5.2 to Fig. 5.6 (page 37). A1: Failsafe Alarm 1 Action High Select the alarm action required, High...

  • Page 38: Wash Cycle Configuration (Applicable Only To Alarm 3)

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 5 Programming 5.5.1 Wash Cycle Configuration (Applicable Only to Alarm 3) A3: Type Wash Wash Mode Select the wash mode required. Cont. ----- Pulsed Cont. – (continuous) the relay remains energized for the wash duration Pulsed –...
  • Page 39 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 5 Programming Note. The following examples illustrate , i.e. the alarm is activated when the process variable exceeds the High Alarm Actions defined set point. are the same, except the alarm is activated when the process variable drops below the Low Alarm Actions defined set point.

  • Page 40: Configure Outputs

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 5 Programming 5.6 Configure Outputs ----- CONFIG. OUTPUTS Configure Output 1 ----- Config. Output 1 Output 2 configuration (and Outputs 3 and 4 if option board fitted and analog features Config.
  • Page 41 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 5 Programming 7. 0 0 Zero Value ) and are shown alternately on the center Deg.C Deg.F Adjust 0. 0 display line. Use the keys to adjust the displayed reading to the required zero value: AO1: Zero Value Note.

  • Page 42: Configure Clock

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 5 Programming 5.7 Configure Clock Note. The Configure Clock function is available only if the option board is fitted and analog features enabled – see Section 7.3, page 57.

  • Page 43: Configure Security

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 5 Programming 5.8 Configure Security ----- CONFIG. SECURITY Alter Security Code Set the security code to a value between 0000 and 19999. 0000 Alter Sec. Code Alter Calibration Code Set the sensor calibration access code to a value between 0000 and 19999.

  • Page 44: Test Outputs And Maintenance

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 5 Programming 5.10 Test Outputs and Maintenance ----- TEST/MAINTENANCE Test Outputs Displays the output test details for the analog outputs. ----- Note. Outputs 3 and 4 are available only if the option board is fitted and analog features enabled –...

  • Page 45: Im/Ax4Ph Rev. P

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 5 Programming Hold Outputs Auto. Automatic Time If required, set a time period between 1 and 6 hours, in 30 minute increments, for which the outputs are held when is set to Mins Hold Outputs...

  • Page 46: Installation

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 6 Installation 6 Installation 6.1 Siting Requirements Note.  Mount in a location free from excessive vibration, and where the temperature and humidity specification will not be exceeded. ...

  • Page 47: Mounting

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 6 Installation 6.2 Mounting 6.2.1 Wall-/Pipe-mount Analyzers Fig. 6.2 Overall Dimensions A – Wall-mounting B – Pipe-mounting Fig. 6.3 Wall-/Pipe-mounting IM/AX4PH Rev. P...

  • Page 48: Panel-Mount Analyzers

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 6 Installation 6.2.2 Panel-mount Analyzers Fig. 6.4 Overall Dimensions Note Fig. 6.5 Panel-mounting Note. The clamp must fit flat on the analyzer casing. The clamp uses a torque limiter, so it is not possible to over-tighten the securing screws.

  • Page 49: Connections, General

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 6 Installation 6.3 Connections, General Warning.  The instrument is not fitted with a switch therefore a disconnecting device such as a switch or circuit breaker conforming to local safety standards must be fitted to the final installation.

  • Page 50: Relay Contact Protection And Interference Suppression

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 6 Installation 6.3.1 Relay Contact Protection and Interference Suppression If the relays are used to switch loads on and off, the relay contacts can become eroded due to arcing. Arcing also generates radio frequency interference (RFI) which can result in analyzer malfunctions and incorrect readings.

  • Page 51: Cable Entry Knockouts, Wall-/Pipe-Mount Analyzer

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 6 Installation 6.3.2 Cable Entry Knockouts, Wall-/Pipe-mount Analyzer The analyzer is supplied with 7 cable glands, one fitted and six to be fitted, as required, by the user – see Fig. 6.7. Release the four captive screws and remove the terminal cover plate...

  • Page 52: Wall-/Pipe-Mount Analyzer Connections

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 6 Installation 6.4 Wall-/Pipe-mount Analyzer Connections 6.4.1 Access to Terminals Fig. 6.8 Access to Terminals, Wall-/Pipe-mount Analyzer Note. When refitting the terminal cover plate, tighten the captive screws to a torque of 0.40 Nm (3.5 lbf. in.) IM/AX4PH Rev.

  • Page 53: Connections

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 6 Installation 6.4.2 Connections Terminal Block C (Option Board) Earth (Ground) Stud on Case (see Fig. 6.8) Terminal Block B Temperature Compensator Temperature Compensator Connections Connections Refer to Section 6.6 for pH Sensor System Connection Details Terminal Block A...

  • Page 54: Panel-Mount Analyzer Connections

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 6 Installation 6.5 Panel-mount Analyzer Connections 6.5.1 Access to Terminals Fig. 6.10 Access to Terminals, Panel-mount Analyzers IM/AX4PH Rev. P...

  • Page 55: Connections

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 6 Installation 6.5.2 Connections Terminal block A Terminal Block C Terminal Block B (Option Board) Line Not Used Power Common 100 to 240 V AC Supplies Neutral Not Used Third Lead...

  • Page 56: Ph Sensor Systems Connections

    6 Installation 6.6 pH Sensor Systems Connections 6.6.1 Standard ph Systems Connection – 2867, AP100, AP300, 7650/60, TB5, Non-ABB When connecting one of these pH systems to the AX400 transmitter, ensure the differential input switch for the relevant sensor Terminal Block B...

  • Page 57: Differential Ph Systems Connections - Capable Of Providing Sensor Diagnostics (Ap200, Tbx5)

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 6 Installation 6.6.2 Differential ph Systems Connections – Capable of Providing Sensor Diagnostics (AP200, TBX5) When connecting one of these pH systems to the AX400 transmitter, ensure the differential input switch for the relevant sensor is See Section 5.4, page 33 for sensor diagnostics configuration.

  • Page 58: Calibration

    Analog-to-Digital converter chip self-compensates for zero and span drift. It is therefore unlikely that the calibration will change over time.  Do Not attempt recalibration without first contacting ABB.  Do Not attempt recalibration unless the input board has been replaced or the Factory Calibration tampered with.

  • Page 59: Factory Settings

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 7 Calibration 7.3 Factory Settings FACTORY SETTINGS Factory Set Code Cal. Sensor A Cal. Sensor B Cal. Output 1 A:mV Zero (-1V) B:mV Zero (-1V) O1: Adjust 4mA A:mV Span (+1V) B:mV Span (+1V) O1: Adjust 20mA...
  • Page 60 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 7 Calibration ----- FACTORY SETTINGS Factory Settings Access Code Enter the required code number (between 0000 and 19999) to gain access to the 0000 factory settings. If an incorrect value is entered, access to subsequent frames is prevented and the display reverts to the top of the page.
  • Page 61 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 7 Calibration 150. 0 Temperature Span (150R) Ohms Set the temperature simulator to 150  150. 0 Calib The display advances automatically to the next step once a stable and valid value is recorded.
  • Page 62 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 7 Calibration Calibrate Output 1 Note. When adjusting the 4 and 20 mA outputs, the display reading is unimportant ----- and is used only to indicate that the output is changing when the keys are pressed.
  • Page 63 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 7 Calibration Calibrate Output 3 Note. -----  Output 3 (and Output 4) calibration is applicable only if the Option board is fitted Cal. Output 3 and analog features enabled –...

  • Page 64: Simple Fault Finding

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 8 Simple Fault Finding 8 Simple Fault Finding 8.2 Calibration Fail Message or No Response to pH/Redox Changes The majority of problems are associated with the electrodes and 8.1 Error Messages cabling.

  • Page 65: Checking The Temperature Input

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 8 Simple Fault Finding 8.3 Checking the Temperature Input Check the analyzer responds to a temperature input. Disconnect the Pt100/Pt1000/Balco 3K leads and connect a suitable resistance box directly to the analyzer inputs – see Section 6.4, page 50 (wall-/pipe-mount analyzer) or see Section 6.5, page 52 (panel-mount analyzer).

  • Page 66: Specification

    Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 9 Specification 9 Specification pH/Redox (ORP) – AX460 and AX466 Conductivity – AX416 Only Inputs Range One or two* pH or mV inputs and solution earth Programmable 0 to 0.5 to 0 to 10,000 µS/cm (with various cell constants) One or two* temperature sensors...
  • Page 67 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 9 Specification Relay Outputs – On/Off Control Function – AX460 Only Number of relays Controller Type Three supplied as standard or five with option board fitted P, PI, PID (configurable) Number of set points Control Outputs...
  • Page 68 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 9 Specification Mechanical Data Environmental Data Wall-/Pipe-mount versions Operating temperature limits IP65 (not evaluated under UL certification) –20 to 55 °C (–4 to 131 °F) Dimensions 192 mm high x 230 mm wide x 94 mm deep Storage temperature limits (7.56 in.

  • Page 69: Appendix A - Buffer Solutions

    9.276 accepted standard. 1.675 4.002 6.881 9.225 Tables A1 to A5 include the pH values for ABB, DIN, Merck, NIST, and US Technical buffer solutions. Standards are for 4, 7 1.679 4.008 6.865 9.180 and 9 pH values, from 0 to 95 ºC (32 to 203 ºF).
  • Page 70 Single and dual input analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 Appendix A – Buffer Solutions Temp NIST Buffers Temp US Technical Buffers ºC ºF 4.01 pH 6.86 pH 9.18 pH ºC ºF 4.01 pH 7 pH 10.01 pH 4.003 6.982...
  • Page 71 Acknowledgments PROFIBUS is a registered trademark of PROFIBUS and PROFINET International (PI). Sales Service...
  • Page 72 We reserve the right to make technical 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.

This manual is also suitable for:

Ax416Ax466Ax468Ax436Ax460

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