ABB AX416 User Manual
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ABB AX416 User Manual

Single and dual input analyzers for ph/redox orp
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Single and Dual Input Analyzers for pH/
User Guide
IM/AX4PH
Issue 9
Redox (ORP)
AX416, AX436, AX460, AX466 & AX468

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Summary of Contents for ABB AX416

  • Page 1 Single and Dual Input Analyzers for pH/ User Guide IM/AX4PH Issue 9 Redox (ORP) AX416, AX436, AX460, AX466 & AX468...
  • Page 2 Cert. No. Q 05907 As a part of ABB, a world leader in process automation technology, we offer customers application expertise, service and support worldwide. EN 29001 (ISO 9001) We are committed to teamwork, high quality manufacturing, advanced technology and unrivalled service and support.

  • Page 3: Table Of Contents

    Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 Contents Contents 1 INTRODUCTION .............. 2 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 .......

  • Page 4: Introduction

    Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 1 INTRODUCTION 1 INTRODUCTION All models incorporate a wash facility for system cleaning; the Alarm 3 relay can be configured to control the wash system either automatically or manually. The relay can be programmed 1.1 System Description...

  • Page 5: Operation

    Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 2 OPERATION 2 OPERATION 2.2.1 Key Functions 2.1 Powering Up the Analyzer Menu 1 Warning. Ensure all connections are made correctly, especially to the earth stud - see section 6.3, page 47.
  • Page 6 Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 2 OPERATION Use the Menu Key Use the Sidescroll Key to scroll through the Pages within each Menu to scroll through the Menus Section 2.3, Page 6 Section 3.1, Page 12...
  • Page 7 Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 2 OPERATION Use the Menu Key Use the Sidescroll Key to scroll through the Pages within each Menu to scroll through the Menus Section 5.5, Page 34 Config.

  • 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.

  • 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. Deg.C 25. 6 Temperature. Redox (ORP) Offset - Sensor A Displays the offset value for the sensor set in - see section 4.1.3, page...

  • 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. Dual Redox Note. If for both Sensor A and Sensor B is set to (Section 5.3), the...

  • 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. pH/Redox (ORP) Note. The for Sensors A and B can be set to any combination of...

  • 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 - 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...
  • 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 set to SENSOR CAL.

  • 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 VIEW OUTPUTS enabled - see section 7.3, page 58.

  • 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...

  • 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...
  • Page 19 Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 3 OPERATOR VIEWS Errors View Logbook Alarms Use the keys to access the logbook. Power Cals Power ----- Note. If no entries are stored in the...

  • 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...

  • Page 21: Setup

    Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 4 SETUP 4 SETUP 4.1 Sensor Calibration Note. If for either sensor (Sensor A only if single input) is set to , the sensor can be calibrated only if...
  • 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 set to User (see Section 4.1.1) Solution A: Enter point 1 (to 5) 15. 0 Deg.C...

  • 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.

  • 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 - Automatic, single-point calibration...
  • Page 26 Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 4 SETUP A: Buffer Method set to Auto 2-Pt Calibrate Buffer 2 (Two-Point Calibration only) 9. 1 8 Immerse Sensor A in the second buffer solution.

  • 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 -Manual, single-point calibration...
  • Page 28 Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 4 SETUP A: Buffer Method Man 2-Pt set to Calibrate Buffer 2 (Two-Point Calibration only) 9. 1 8 Immerse Sensor A in the second buffer solution.

  • 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 Adjust Value 9. 1 8 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 5.8, Alter Sec. Code page 41.

  • 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 Config. Sensor B Sensor B configuration (dual input analyzers only) is identical to Sensor A configuration.
  • Page 33 Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 5 PROGRAMMING A: Probe Type set to pH Electrode Type Select the type of pH electrode used, Glass or Antimony. Antim. Glass ----- A: Electrode Temperature Compensation...
  • 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 25ºC. ----- 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...

  • 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 set to Wash Mode Select the wash mode required. Cont. Pulsed ----- Cont.
  • 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 Zero Value 7. 0 0 ) and are shown alternately on the center Deg.C Deg.F Adjust 0. 0 display line. Use the and keys to adjust the displayed reading to the required zero...

  • 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 58.

  • 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 Test Outputs enabled - see section 7.3, page 58.
  • Page 45 Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 5 PROGRAMMING Hold Outputs set to Auto. Automatic Time If required, set a time period between 1 and 6 hours, in 30 minute increments, for which...

  • 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. Mount away from harmful vapours and/or dripping fluids. Where possible, mount the analyzer at eye level to allow an unrestricted view of the front panel displays and controls.

  • 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 Dimensions in mm (in.) Fixing Centers 94 (3.7) 210 (8.23) 192 (7.56) 96 (3.76) Fig. 6.2 Overall Dimensions 61 (2...

  • 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 Dimensions in mm (in.) +0.8 +0.03 (3.62 –0 –0 137.50 (5.41) (0.98) 96 (3.78) +0.8 –0 Panel Cut-out +0.03 (3.62 –0 5.40 (0.2)

  • 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.

  • 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 Release the four captive screws and remove the terminal cover plate Terminal Block C (Option Board)

  • 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...

  • 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 Terminal Block A Case Earth (Ground) Stud Terminal Block C Terminal Block B (Option Board) Fig. 6.10 Access to Terminals, Panel-mount Analyzers...

  • 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) 85 to 265 V AC + Line Not Used Common Power...

  • Page 56: Ph Sensor Systems Connections

    Clear Glass/Metal Electrode Clear Glass/Metal Electrode Table 6.2 ABB 7650 and 7660 Series pH Sensor Connections Note. 1. Where pH systems are used with a Solution Earth (ground rod) and those including diagnostics, ensure that Diff. Input the relevant sensor(s) is set to - see section 5.3, page 30.
  • Page 57 Not Used Co-ax Inner Glass/Metal Electrode Transparent Glass/Metal Electrode Blue Glass/Metal Electrode Table 6.3 ABB AP100, AP200 and AP300 Series pH Sensor Connections Terminal Block B TB5 Series Sensors TBX5 Series Sensors (see Note 1 below) Sensor B Sensor A Color...
  • Page 58 Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Black Reference Electrode Not Used Not Used Blue Glass/Metal Electrode Table 6.5 ABB 2867 Series pH Sensor Connections IM/AX4PH Issue 9...

  • Page 59: 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 60: Factory Settings

    Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 7 CALIBRATION Terminal link Sensor A Terminal Numbers Sensor B Terminal Numbers –ve Temperature pH/Redox Input Simulator Simulator Fig. 7.1 Analyzer Terminal Links and Decade Resistance Box Connections 7.3 Factory Settings...
  • Page 61 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 Factory Set Code prevented and the display reverts to the top of the page.
  • Page 62 Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 7 CALIBRATION Temperature Span (150R) 150. 0 Ohms Set the temperature simulator to 150Ω 150. 0 Calib The display advances automatically to the next step once a stable and valid value is A:T.Span (150R)
  • Page 63 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 20mA outputs, the display reading is unimportant and ----- is used only to indicate that the output is changing when the keys are pressed.
  • Page 64 Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 7 CALIBRATION Option Board Fitted and Analog Features Enabled Calibrate Output 3 • Output 3 (and Output 4) calibration is applicable only if the Option board is fitted ----- and analog features enabled - see below.

  • Page 65: 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 1. Check that the analyzer responds to a millivolt input. Connect a pH simulator, such as Model 2410, to the transmitter input;...

  • Page 66: 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...

  • Page 67: Specification

    Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 9 SPECIFICATION 9 SPECIFICATION Conductivity - AX416 Only Range pH/Redox (ORP) - AX460 and AX466 Programmable 0 to 0.5 to 0 to 10,000µS/cm Inputs (with various cell constants)
  • Page 68 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...
  • Page 69 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 IP66/NEMA4X -20 to 65ºC (-4 to 149ºF) Dimensions 192mm high x 230mm wide x 94mm deep Storage temperature limits (7.56 in.

  • Page 70: Buffer Solutions

    25ºC (77ºF), the internationally accepted standard. 1.672 3.999 6.900 9.276 Tables A1 to A5 include the pH values for ABB, DIN, Merck, 1.675 4.002 6.881 9.225 NIST, and US Technical buffer solutions. Standards are for 4, 7 1.679...
  • Page 71 Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 Appendix A Temp Merck Buffers Temp NIST Buffers ºC ºF 10pH ºC ºF 4.01pH 6.86pH 9.18pH 4.05 7.13 9.24 10.26 4.003 6.982 9.460 4.04 7.07 9.16 10.17...
  • Page 72 Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 Appendix A Temp US Technical Buffers ºC ºF 4.01pH 10.01pH 4.000 7.118 10.317 3.998 7.087 10.245 3.997 7.059 10.179 3.998 7.036 10.118 4.001 7.016 10.062 4.005 7.000...
  • Page 73 Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 Notes Notes IM/AX4PH Issue 9...
  • Page 74 Single and Dual Input Analyzers for pH/Redox (ORP) AX416, AX436, AX460, AX466 & AX468 Notes IM/AX4PH Issue 9...
  • Page 75 – Chemical & Pharmaceutical details on your nearest Service and Repair Centre. – Food & Beverage United Kingdom – Manufacturing ABB Limited – Metals and Minerals Tel: +44 (0)1453 826661 – Oil, Gas & Petrochemical Fax: +44 (0)1453 829671 –...
  • Page 76 ABB has Sales & Customer Support expertise The Company’s policy is one of continuous product in over 100 countries worldwide improvement and the right is reserved to modify the information contained herein without notice. www.abb.com Printed in UK (04.07) © ABB 2007 ABB Limited ABB Inc.

This manual is also suitable for:

Ax436Ax460Ax466Ax468

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