ABB AX416 User manual

AnalyzeIT
Single and Dual Input Analyzers
for pH/Redox (ORP)
AX416, AX436, AX460, AX466 & AX468
User Guide
IM/AX4PH_5

ABB
Electrical Safety
This instrument complies with the requirements of CEI/IEC 61010-1:2001-2 'Safety Requirements for Electrical Equipment for
Measurement, Control and Laboratory Use'. If the instrument is used in a manner NOT specified by the Company, the protection
provided by the instrument may be impaired.
Symbols
One or more of the following symbols may appear on the instrument labelling:
Information in this manual is intended only to assist our customers in the efficient operation of our equipment. Use of this manual for
any other purpose is specifically prohibited and its contents are not to be reproduced in full or part without prior approval of the
Technical Publications Department.
Health and Safety
To ensure that our products are safe and without risk to health, the following points must be noted:
1. The relevant sections of these instructions must be read carefully before proceeding.
2. Warning labels on containers and packages must be observed.
3. Installation, operation, maintenance and servicing must only be carried out by suitably trained personnel and in accordance with the
information given.
4. Normal safety precautions must be taken to avoid the possibility of an accident occurring when operating in conditions of high pressure and/
or temperature.
5. Chemicals must be stored away from heat, protected from temperature extremes and powders kept dry. Normal safe handling procedures
must be used.
6. When disposing of chemicals ensure that no two chemicals are mixed.
Safety advice concerning the use of the equipment described in this manual or any relevant hazard data sheets (where applicable) may be
obtained from the Company address on the back cover, together with servicing and spares information.
Warning – Refer to the manual for instructions
Caution – Risk of electric shock
Protective earth (ground) terminal
Earth (ground) terminal
Direct current supply only
Alternating current supply only
Both direct and alternating current supply
The equipment is protected
through double insulation
BS EN ISO 9001:2000
Cert. No. Q 05907
EN 29001 (ISO 9001)
Lenno, Italy – Cert. No. 9/90A
0255
Stonehouse, U.K.
The Company
We are an established world force in the design and manufacture of instrumentation for industrial
process control, flow measurement, gas and liquid analysis and environmental applications.
As a part of ABB, a world leader in process automation technology, we offer customers
application expertise, service and support worldwide.
We are committed to teamwork, high quality manufacturing, advanced technology and unrivalled
service and support.
The quality, accuracy and performance of the Company’s products result from over 100 years
experience, combined with a continuous program of innovative design and development to
incorporate the latest technology.
The NAMAS Calibration Laboratory No. 0255 is just one of the ten flow calibration plants
operated by the Company, and is indicative of our dedication to quality
and accuracy.

1
CONTENTS
Section Page
1INTRODUCTION .............................................................. 2
1.1 System Description .................................................2
1.2 PID Control ............................................................. 2
1.3 AX400 Series Analyzer Options ............................... 2
2OPERATION ..................................................................... 3
2.1 Powering Up the Analyzer ....................................... 3
2.2 Displays and Controls..............................................3
2.2.1 Key Functions ..............................................3
2.3 Operating Page ....................................................... 6
2.3.1 Single Input pH ............................................6
2.3.2 Dual Input pH...............................................7
2.3.3 Single Input Redox (ORP)............................. 8
2.3.4 Dual Input Redox (ORP) ...............................9
2.3.5 Dual Input pH and Redox (ORP)................. 10
2.3.6 Wash Function ........................................... 11
3OPERATOR VIEWS ....................................................... 12
3.1 View Set Points ..................................................... 12
3.2 View Outputs ........................................................14
3.3 View Hardware ......................................................14
3.4 View Software ....................................................... 15
3.5 View Logbook ....................................................... 16
3.6 View Clock ............................................................18
4SETUP............................................................................19
4.1 Sensor Calibration .................................................19
4.1.1 Set Buffer Type (pH Only) ...........................19
4.1.2 Set Up User Defined Buffers (pH Only) ....... 21
4.1.3 Adjust Offset (Redox/ORP Only) .................22
4.1.4 Automatic, Single- and
Two-Point Calibration (pH Only)..................23
4.1.5 Manual, Single- and
Two-Point Calibration (pH Only)..................25
4.1.6 Grab Calibration (pH Only) .........................27
5PROGRAMMING ...........................................................28
5.1 Security Code ....................................................... 28
5.2 Configure Display ..................................................29
5.3 Configure Sensors.................................................30
5.4 Configure Diagnostics ........................................... 33
5.5 Configure Alarms...................................................34
5.5.1 Wash Cycle Configuration
(applicable only to Alarm 3) ........................36
5.6 Configure Outputs ................................................. 38
5.7 Configure Clock ....................................................40
5.8 Configure Security .................................................41
5.9 Configure Logbook ...............................................41
5.10 Test Outputs and Maintenance ..............................42
Section Page
6INSTALLATION .............................................................. 44
6.1 Siting Requirements ..............................................44
6.2 Mounting ...............................................................45
6.2.1 Wall-/Pipe-mount Analyzers .......................45
6.2.2 Panel-mount Analyzers ..............................46
6.3 Connections, General ............................................ 47
6.3.1 Relay Contact Protection and
Interference Suppression ........................... 48
6.3.2 Cable Entry Knockouts,
Wall-/Pipe-mount Analyzer .........................49
6.4 Wall-/Pipe-mount Analyzer Connections ................ 50
6.4.1 Access to Terminals ...................................50
6.4.2 Connections .............................................. 51
6.5 Panel-mount Analyzer Connections .......................52
6.5.1 Access to Terminals ...................................52
6.5.2 Connections .............................................. 53
6.6 pH Sensor Systems Connections .......................... 54
7CALIBRATION ...............................................................56
7.1 Equipment Required.............................................. 56
7.2 Preparation ........................................................... 56
7.3 Factory Settings .................................................... 57
8SIMPLE FAULT FINDING ..............................................62
8.1 Error Messages ..................................................... 62
8.2 Calibration Fail Message or
no Response to pH/Redox Changes ..................... 62
8.3 Checking the Temperature Input............................ 62
SPECIFICATION .................................................................. 63
APPENDIX A ....................................................................... 66
A1 Buffer Solutions ..................................................... 66

2
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
to deliver either a continuous or pulsed signal to control an
external power supply to a solenoid or pump and the frequency,
duration and recovery time for the wash cycle are also
programmable. During a wash cycle, the analog output value is
held in its pre-cycle condition.
Analyzer operation and programming are performed using five
tactile membrane keys on the front panel. Programmed
functions are protected from unauthorized alteration by a four-
digit security code.
1.2 PID Control
The Ax460 single input pH analyzer incorporates Proportional
Integral Derivative (PID) control as standard. Refer to the PID
Control Supplementary User Guide,IM/AX4PID for a full
description and instructions on how to configure and operate
PID control.
1.3 AX400 Series Analyzer Options
Table 1.1 shows the range of configurations that are possible
for the AX400 Series analyzers. The analyzer detects the type
of input board fitted for each input automatically and displays
only the operating and programming frames applicable to that
input board type. If no input board is fitted for a second input
(Sensor B), Sensor B frames are not displayed.
Table 1.1 AX400 Series Analyzer Variants
1INTRODUCTION
1.1 System Description
The AX460 single input and AX466 dual input pH/Redox (ORP)
analyzers and associated electrode systems have been
designed for continuous monitoring and control of pH and
Redox (ORP). The electrode system can be standardized to the
analyzer using the built-in calibration facility and a single point
buffering facility provides easy re-calibration after initial
standardization.
The analyzer is available in wall-/pipe-mount or panel-mount
versions with either one or two programmable, pH or Redox
(ORP) input channels, each with its own associated temperature
input channel. When making temperature compensated
measurements, the sample temperature is sensed by a
resistance thermometer (Pt100, Pt1000 or Balco 3K) mounted
in the electrode system.
The analyzer can be configured for, and connected to, either a
standard pH input (single, high impedence input >1013) or
differential pH input (dual, high impedence inputs, both >1013).
Differential pH input is designed for use with pH electrode
systems that incorporate a solution earth (ground) rod. The
measuring electrode and reference electrode signals are
measured separately using two, high impedence amplifiers and
compared with the solution earth (ground) potential. The
difference between the results is the value used for the pH
measurement.
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114XA000,01ot0(ytivitcudnoCedortcelE-2tupnIlauD )mc/SytivitcudnoCedortcelE-2ytivitcudnoCedortcelE-2
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3
Fig. 2.1 Location of Controls and Displays
Fig. 2.2 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.
1) Ensure the input sensor(s) is/are connected correctly.
2) Switch on the power supply to the analyzer. A start-up
screen is displayed while internal checks are performed,
then the Operating Page (Section 2.3) is displayed as the pH
or Redox (ORP) monitoring operation starts.
2.2 Displays and Controls – Fig. 2.1
The display comprises two rows of 41/2digit, 7-segment digital
displays, that show the actual values of the measured
parameters and alarm set points, and a 6-character dot matrix
display showing the associated units. The lower display line is a
16-character dot matrix display showing operating and
programming information.
2.2.1 Key Functions
2OPERATION
0.00
Monitoring pH
0.00
Alarm
LEDs
Display
Lines
Lower
Display Line
Membrane Keys
pH
Units
Menu Key
Sidescroll Key
Downscroll Key
Up Key
Down Key
pH
B – Advancing to Next Page
C – Moving Between Frames
D – Adjusting and Storing a Parameter Value
E – Selecting and Storing a Parameter Choice
A – Moving Between Menus
For majority
of frames
Frame 1
Frame 2
Frame 3
Frame 4
Page 1
Frame 1
Frame 2
Frame 3
Page 2
Advance to
next page
or
Frame 1
Frame 2
Frame 3
Page X
Frame 4
Advance to
next frame
New value is stored
automatically
Parameter Value Adjust
Parameter X
Y
ZSelect
New value is stored
automatically
Menu 1
Menu 2
Advance to
next menu

4
…2 OPERATION
Fig. 2.3A Overall Programming Chart
Key
VIEW SETPOINTS VIEW OUTPUTS VIEW HARDWARE VIEW SOFTWARE
A1: Setpoint Analog Output 1 Sensor A Module AX400/2000 Issue
A2: Setpoint Analog Output 2 Sensor B Module
A3: Setpoint Analog Output 3 Option Board
A4: Setpoint Analog Output 4
A5: Setpoint
SECURITY CODE
CONFIG. DISPLAY Set Language Set Temp. Units Set Backlight
LED BacklightTemp. UnitsEnglish
Use the Sidescroll Key to scroll through the Pages within each Menu
To CONFIG. ALARMS
(see Fig. 2.3B)
Use the Downscroll
Key to scroll through
the Frames
within each Page
OPERATING PAGE
Section 2.3, Page 6 Section 3.1, Page 12 Section 3.2, Page 14 Section 3.3, Page 14 Section 3.4, Page 15 Section 3.5, Page 16
Section 5.1, Page 28
Section 5.2, Page 29
Section 3.6, Page 18
Alarms
Errors
Power
Cals
VIEW LOGBOOK
Dual input analyzer only
VIEW CLOCK
Date 01:01:03
Time 12:00
*Displayed only if
Probe Type is set to Redox or ORP
CONFIG.DIAGS
Section 5.4, Page 33
Config. Sensor A
A: pH Glass
A: Ref. Checking
A: Ref. Alarm
Config. Sensor A Config. Sensor B
B: pH Glass
B: Ref. Checking
B: Ref. Alarm
Use the Menu Key
to scroll through
the Menus
CONFIG.SENSORS
B: Probe Type
B: Diff. Input
B: Electrode
B: Temp. Comp
B: Temp. Sensor
B: Preset Temp.
B: Sample Comp.
B: Sample Coeff.
Section 5.3, Page 30
B: Set Min Slope
Config. Sensor B
Config. Sensor A
A: Probe Type
A: Diff. Input
A: Temp. Comp
A: Temp. Sensor
A: Preset Temp.
A: Sample Comp.
A: Sample Coeff.
A: Set Min Slope
A: Electrode
A: Enable Cals B: Enable Cals
**
SENSOR CAL. Cal. User Code Sensor Cal. A
A: Buffer Method
A: Immerse Buf.1
A: Cal. Buffer 1
A: Immerse Buf.2
A: Cal. Buffer 2
A: Calibration
Section 4.1, Page 19
Set Auto Buffers
Buffer Type
Set Buffer 1
Set Buffer 2
A: Slope & Check
Sensor Cal. B
B: Buffer Method
B: Immerse Buf.1
B: Cal. Buffer 1
B: Immerse Buf.2
B: Cal. Buffer 2
B: Calibration
B: Slope & Check
A: Enter Point 1
A: Enter Point 2
B: Enter Point 1
A: Enter Point 5
A: Enter Point 4
A: Enter Point 3
B: Enter Point 2
B: Enter Point 5
B: Enter Point 4
B: Enter Point 3
#### 100% ####
#### 100% ####
#### 100% ####
#### 100% ####
Note. Sensor calibration parameters shown above
are for Automatic, 2-point calibration only. For other
calibration options, refer to Section 4.1.
Available only if option board fitted and
analog features enabled – see Section 7.3

5
2OPERATION…
Fig. 2.3B Overall Programming Chart
CONFIG.ALARMS Config. Alarm 1
A1: Type
A1: Assign
A1: Failsafe
A1: Action
A1: Setpoint
A1: Hysteresis
A1: Delay
Config. Alarm 2
A2: Type
A2: Assign
A2: Failsafe
A2: Action
A2: Setpoint
A2: Hysteresis
A2: Delay
A3: Assign
A3: Failsafe
A3: Action
A3: Setpoint
A3: Hysteresis
A3: Delay
To FACTORY SETTINGS
(see Section 7.3, Page 57)
Config. Alarm 3
A3: Type
Use the Sidescroll Key to scroll through the Pages within each Menu
Section 5.5, Page 34
Use the Downscroll
Key to scroll through
the Frames
within each Page
Config. Alarm 4
A4: Type
A4: Assign
A4: Failsafe
A4: Action
A4: Setpoint
A4: Hysteresis
A4: Delay
Config. Alarm 5
A5: Type
A5: Assign
A5: Failsafe
A5: Action
A5: Setpoint
A5: Hysteresis
A5: Delay
Wash Frequency
Wash Duration
Recovery Period
Wash Mode
*
* Applicable only
to Alarm 3
CONFIG.LOGBOOK
Section 5.9, Page 41
Logbook
CONFIG.SECURITY Alter Sec.Code
Alter Cal.Code
Section 5.8, Page 41
CONFIG.CLOCK Set Clock?
Format dd/mm/yy
Date 01:01:02
Time 12:00
Press To Abort Press To Set
Section 5.7, Page 40
Use the Menu Key
to scroll through
the Menus
CONFIG.OUTPUTS Config. Output 1
AO1: Assign
AO1: Range
AO1: Span Value
AO1: Zero Value
AO1: Default
AO1: Default Val
Config. Output 2
AO2: Assign
AO2: Range
AO2: Span Value
AO2: Zero Value
AO2: Default
AO2: Default Val
Config. Output 3
AO3: Assign
AO3: Range
AO3: Span Value
AO3: Zero Value
AO3: Default
AO3: Default Val
Section 5.6, Page 38
Config. Output 4
AO4: Assign
AO4: Range
AO4: Span Value
AO4: Zero Value
AO4: Default
AO4: Default Val
Single Input Analyzer Only — see Supplementary Manual PID Control (IM/AX4PID)
CONFIG. CONTROL
TEST/MAINTENANCE Test Outputs
Test Output 1
Test Output 2
Maintenance
Hold Outputs
Test Output 3
Test Output 4
Section 5.10, Page 42
Load/Save Config
Factory Config.
User Config.
Press To Abort Press To Set
CONFIG.SERIAL
Displayed only if option board fitted and serial communications feature enabled (Section 7.3) –
see Supplementary Manual PROFIBUS Datalink Description (IM/PROBUS)
Automatic Time
Key
Available only if option board fitted and
analog features enabled – see Section 7.3

6
Measured Values
pH.
Temperature.
Measured Millivolts
Millivolts.
% Slope and pH Check Value
% slope value.
A value between the programmed minimum % slope value (see Set Min Slope – Section
5.3) and 105% is displayed. If the value is outside these limits, check the electrode system.
pH check value (zero point).
Displayed as an additional indication of pH electrode system condition; 7pH is the
optimum value for glass electrodes and 0pH for Antimony electrodes.
See Section 3.1.
See Section 4.1.
A3: Type set to Wash (Section 5.5) – see Section 2.3.6.
A3: Type not set to Wash (Section 5.5) – return to top of page.
2.3 Operating Page
2.3.1 Single Input pH
…2 OPERATION
Monitoring pH
7.00
pH
24.4
Deg.C
Monitoring pH
Millivolts
404
mV
A: Slope & Check
100.0
%
7.00
pH
VIEW SETPOINTS
SENSOR CAL.
Wash Function

7
Measured pH
Sensor A.
Sensor B.
Measured Temperature
Sensor A.
Sensor B.
Measured Millivolts
Sensor A.
Sensor B.
% Slope and pH Check Value – Sensor A
% slope value.
A value between the programmed minimum % slope value (see Set Min Slope – Section
5.3) and 105% is displayed. If the value is outside these limits, check the electrode system.
pH check value (zero point).
Displayed as an additional indication of pH electrode system condition; 7pH being the
optimum value for glass electrodes and 0pH for Antimony electrodes.
% Slope and pH Check Value – Sensor B
% slope value.
See Sensor A above.
pH check value (zero point).
See Section 3.1.
See Section 4.1.
A3: Type set to Wash (Section 5.5) – see Section 2.3.6.
A3: Type not set to Wash (Section 5.5) – return to top of page.
…2.3 Operating Page
2.3.2 Dual Input pH
2OPERATION…
Monitoring pH
7.00
pH
7.00
pH
Temperature
25.6
Deg.C
Millivolts
404
mV
A: Slope & Check
100.0
%
7.00
pH
24.4
Deg.C
-256
mV
B: Slope & Check
%
pH
100.0
7.00
Monitoring pH
VIEW SETPOINTS
SENSOR CAL.
Wash Function

8
Measured Values
Millivolts.
Temperature.
Offset – Sensor A
Displays the offset value for the sensor set in A: Adjust Offset – see Section 4.1.3.
See Section 3.1.
See Section 4.1.
A3: Type set to Wash (Section 5.5) – see Section 2.3.6.
A3: Type not set to Wash (Section 5.5) – return to top of page.
…2 OPERATION
Redox (ORP)
404
mV
25.6
Deg.C
A: mV Offset
0
mV
Redox (ORP)
VIEW SETPOINTS
SENSOR CAL.
Wash F nction
…2.3 Operating Page
2.3.3 Single Input Redox (ORP)

9
2OPERATION…
Measured Millivolts
Sensor A.
Sensor B.
Note. If Probe Type for both Sensor A and Sensor B is set to ORP (Section 5.3), the lower
display line shows Dual ORP.
Sample Temperature
Sensor A.
Sensor B.
Note. The measured temperature is displayed only if Temp. Sensor is not set to None – see
Section 5.3.
Offset – Sensor A
Displays the offset value for Sensor A set in A: Adjust Offset – see Section 4.1.3.
Offset – Sensor B
Displays the offset value for Sensor B set in B: Adjust Offset – see Section 4.1.3.
See Section 3.1.
See Section 4.1.
A3: Type set to Wash (Section 5.5) – see Section 2.3.6.
A3: Type not set to Wash (Section 5.5) – return to top of page.
…2.3 Operating Page
2.3.4 Dual Input Redox (ORP)
Dual Redox
404
mV
-256
Temperature
25.6
Deg.C
24.4
Deg.C
mV
A: mV Offset
0
mV
B: mV Offset
0
mV
Dual Redox
VIEW SETPOINTS
SENSOR CAL.
Wash Function

10
…2.3 Operating Page
2.3.5 Dual Input pH and Redox (ORP)
Measured pH and Millivolts
Sensor A.
Sensor B.
Note. The Probe Type for Sensors A and B can be set to any combination of pH, Redox
or ORP – see Section 5.3. The display indications change depending on Probe Type
settings, e.g. if Sensor A is set to Redox and Sensor B to pH, the lower display shows
Redox (ORP)/pH.
Measured Temperature
Sensor A.
Sensor B.
Note. The measured temperature is displayed only if Temp. Sensor is not set to None –
see Section 5.3.
Measured Millivolts
Sensor A.
Sensor B.
Offset – Sensor B
Displays the offset value for Sensor B set in B: Adjust Offset – see Section 4.1.3.
% Slope and pH Check Value – Sensor A
% slope value.
A value between the programmed minimum % slope value (see Set Min Slope – Section
5.3) and 105% is displayed. If the value is outside these limits, check the electrode system.
pH check value (zero value).
Displayed as an additional indication of pH electrode system condition; 7pH is the
optimum value for glass electrodes and 0pH for Antimony electrodes.
See Section 3.1.
See Section 4.1.
A3: Type set to Wash (Section 5.5) – see Section 2.3.6.
A3: Type not set to Wash (Section 5.5) – return to top of page.
…2 OPERATION
pH/Redox (ORP)
7.00
pH
-256
mV
Temperature
25.6
Deg.C
Millivolts
404
mV
A: Slope & Check
100.0
%
7.00
pH
24.4
Deg.C
-256
mV
B: mV Offset
0
mV
pH/Redox (ORP)
VIEW SETPOINTS
SENSOR CAL.
Wash Function

11
2OPERATION
…2.3 Operating Page
2.3.6 Wash Function
Note. The Wash function is available only if A3: Type is set to Wash – see Section 5.5.
Wash Function
Off –Wash function off. Lower display line of Operating Page shows
WASH INHIBITED.
On –Wash function controlled automatically. Lower display line of Operating Page
shows WASH IN PROGRESS.
Manual –Enables wash function to be initiated manually – see below.
Note. Set Wash Function to Off before removing the sensor from the process.
See Section 3.1.
Probe Type set to pH (for either sensor if dual input analyzer) – see Section 5.3.
See Section 4.1.
Probe Type set to Redox or ORP (for both sensors in any combination if dual input analyzer)
– see Section 5.3.
Enable Cals set to Yes (Section 5.3) – see Section 4.1.
Alter Sec. Code not set to zero (Section 5.8) – see Section 5.1.
Alter Sec. Code set to zero (Section 5.8) – see Section 5.2.
Wash Function set to Manual – see below.
Wash Function not set to Manual. The display returns to the top of the
Operating Page.
Press to Wash (Manual Wash only)
Press to Wash and Press to Abort are shown alternately on the lower display line.
Press the key to initiate the wash cycle. The display returns to the top of
the Operating Page and the lower display line shows WASH IN PROGRESS until
the wash cycle is completed. The Wash Function selection reverts to the one
that was set before Manual was selected.
Press the key to abort the wash cycle. The display returns to the top
of the Operating Page.
VIEW SETPOINTS
SENSOR CAL.
Wash Function
-----
Manual
On
Off
-----
Press To Wash
Press To Abort
SENSOR CAL.
Security Code
CONFIG. DISPLAY
Press To Wash
Monitoring pH
WASH IN PROGRESS
Monitoring pH
Redox (ORP)
Dual Redox
pH/Redox (ORP)
Redox (ORP)
Dual Redox
pH/Redox (ORP)

12
8.30
pH
A1: Setpoint
Sen.A
Temp.A
VIEW SETPOINTS
-----
35.0
Deg.C
A2: Setpoint
Sen.B
6.80
A3: Setpoint
Temp.B
55.0
Deg.C
A4: Setpoint
-----
Off
A5: Setpoint
VIEW OUTPUTS
SENSOR CAL.
Security Code
CONFIG. DISPLAY
VIEW SETPOINTS
pH
View Set Points
This page shows alarm set points. The value of each of the set points is shown, together
with the name of the parameter it is assigned to.
Alarm assignments, set point values and relay/LED actions are programmable – see
Section 5.4.
Sensor A (pH), Alarm 1 Set Point
Sensor A (Temperature), Alarm 2 Set Point
Sensor B (pH), Alarm 3 Set Point – Dual input analyzers only
Sensor B (Temperature), Alarm 4 Set Point – Dual input analyzers only
Note. Alarm 4 available only if option board fitted and analog features enabled – see
Section 7.3.
Alarm 5 Set Point
Note. Alarm 5 available only if option board fitted and analog features enabled – see
Section 7.3.
See Section 3.2.
See Note on next page.
3OPERATOR VIEWS
3.1 View Set Points
Note. The parameter names and units of measurement displayed in the View Set Points page depend on the Probe Type
settings for Sensors A and B – see Section 5.3. Those shown below are given as examples only.

13
…3.1 View Set Points
Note. The menu displayed when pressing the key from the Operator View pages depends on analyzer configuration, i.e.:
Single Input Analyzers
SENSOR CAL.
Probe Type set to pH

Probe Type set to Redox or ORP  Enable Cals set to Yes (Section 5.3) – see Section 4.1.
Security Code
Probe Type set to Redox or ORP  Enable Cals set to No (Section 5.3)  Alter Sec. Code not set to zero
(Section 5.8) – see Section 5.1.
CONFIG. DISPLAY
Probe Type set to Redox or ORP  Enable Cals set to No (Section 5.3)  Alter Sec. Code set to zero
(Section 5.8) – see Section 5.2.
Dual Input Analyzers
SENSOR CAL.
Probe Type for either sensor set to pH

Probe Type for both sensors set to Redox or ORP  Enable Cals for  sensor set to Yes (Section 5.3) –
see Section 4.1.
Security Code
Probe Type for  sensors set to Redox or ORP  Enable Cals for  sensors set to No (Section 5.3) 
Alter Sec. Code not set to zero (Section 5.8) – see Section 5.1.
CONFIG. DISPLAY
Probe Type for  sensors set to Redox or ORP  Enable Cals for  sensors set to No (Section 5.3) 
Alter Sec. Code set to zero (Section 5.8) – see Section 5.2.
3OPERATOR VIEWS…

14
…3 OPERATOR VIEW
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 – see Section 7.3.
Live current output value being retransmitted.
Current output shown as a percentage of full scale for the output range set in CONFIG.
OUPUTS – see Section 5.6.
See Section 3.3.
See Note on Page 13.
Advance to analog output 2 (and outputs 3 and 4 if option board fitted and
analog features enabled – see Section 7.3).
3.3 View Hardware
Sensor A Module
Shows the type of input board fitted to the analyzer for the Sensor A input.
Sensor B Module – Dual input analyzers only
Shows the type of input board fitted to the analyzer for the Sensor B input.
Option Board
Note. Displayed only if the option board is fitted.
Displays the optional features enabled in the Factory Settings page – see Section 7.3.
See Section 3.4.
See Note on Page 13.
50.0
%
Analog Output 1
12.00
mA
VIEW OUTPUTS
-----
VIEW HARDWARE
SENSOR CAL.
Security Code
CONFIG. DISPLAY
Analog Output 2
pH
pH
-----
Sensor A Module
VIEW HARDWARE
-----
Option Board
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Sensor B Module
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Pb Dp
Analog
VIEW SOFTWARE
SENSOR CAL.
Security Code
CONFIG. DISPLAY
VIEW HARDWARE

15
3OPERATOR VIEWS…
3.4 View Software
1.00
AX400/2000 Issue
VIEW SOFTWARE
-----
VIEW LOGBOOK
SENSOR CAL.
Security Code
CONFIG. DISPLAY
VIEW SOFTWARE
Monitoring pH
Redox (ORP)
Dual Redox
pH/Redox (ORP)
Issue
Shows the version number of the operating software.
Option board fitted and analog features enabled (Section 7.3) and
Logbook set to On (Section 5.9) – see Section 3.5.
Operating Page (option board not fitted) – see Section 2.3.
See Note on Page 13.

16
…3 OPERATOR VIEWS
The logbook stores data entries for alarm events, sensor errors, power failures and pH
calibration information.
View Logbook
Use the and keys to access the Alarms logbook.
Note. If no entries are stored in the Alarms logbook, the display shows No More Entries.
Alarms
The Alarms logbook contains up to 10 entries (entry 1 is the most recent), each comprising
an alarm number, alarm state (On or Off) and the date/time of the occurrence.
Option board fitted and analog features enabled (Section 7.3) – see Section 3.6.
See Note on Page 13.
Advance to entries 2 to 10.
Note. If no more entries are stored, the display shows No More Entries.
View Logbook
Use the and keys to access the Errors logbook.
Note. If no entries are stored in the Errors logbook, the display shows No More Entries.
Errors
The Errors logbook contains up to 5 entries (entry 1 is the most recent), each comprising
the sensor letter, error number and the date/time of the occurrence.
Option board fitted and analog features enabled (Section 7.3) – see Section 3.6.
See Note on Page 13.
Advance to entries 2 to 5.
Note. If no more entries are stored, the display shows No More Entries.
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11:09:02 12:34
VIEW CLOCK
SENSOR CAL.
Security Code
CONFIG. DISPLAY
Sen.A
VIEW LOGBOOK
Errors
1
Sen.A
Pt100
2
Alarms
Cals
Power
Errors
-----
11:09:02 12:34
VIEW LOGBOOK
-----
VIEW CLOCK
SENSOR CAL.
Security Code
CONFIG. DISPLAY
A1
-----
VIEW LOGBOOK
1
2
Cals
Power
Errors
Alarms
A1
On
3.5 View Logbook
Note. The View Logbook function is available only if the option board is fitted and analog features enabled (Section 7.3) and
Logbook is set to On (Section 5.9).

17
…3.5 View Logbook
View Logbook
Use the and keys to access the Power logbook.
Note. If no entries are stored in the Power logbook, the display shows No More Entries.
Power
The Power logbook contains up to 2 entries (entry 1 is the most recent), each comprising
the power state (On or Off) and the date/time of the occurrence.
Option board fitted and analog features enabled (Section 7.3) – see Section 3.6.
See Note on Page 13.
Advance to entry 2.
Note. If no more entries are stored, the display shows No More Entries.
View Logbook
Use the and keys to access the Cals logbook.
Note. If no entries are stored in the Cals logbook, the display shows No More Entries.
Calibration
The Cals logbook contains up to 5 entries (entry 1 is the most recent), each comprising 2
frames. Frame 1 contains the entry number, sensor letter and the calibration pass/fail
indication.
Frame 2 contains the % slope value, the pH check value and the date/time of the
occurrence.
Option board fitted and analog features enabled (Section 7.3) – see Section 3.6.
See Note on Page 13.
Advance to entries 2 to 5.
Note. If no more entries are stored, the display shows No More Entries.
3OPERATOR VIEWS…
VIEW CLOCK
-----
Calibration
-----
VIEW LOGBOOK
1
Sen.A
Passed
11:09:02 12:34
SENSOR CAL.
Security Code
CONFIG. DISPLAY
Sen.A
100.0
%
pH
2
7.00
Power
Errors
Alarms
Cals
-----
11:09:02 12:34
VIEW CLOCK
SENSOR CAL.
Security Code
CONFIG. DISPLAY
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VIEW LOGBOOK
1
Off
2
Errors
Alarms
Cals
Power

18
Date
Shows the current date.
Time
Shows the current time.
Operating Page – see Section 2.3.
See Note on Page 13.
…3 OPERATOR VIEWS
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Date 01:02:04
VIEW CLOCK
-----
-----
Time 12:00
Monitoring pH
SENSOR CAL.
Security Code
CONFIG. DISPLAY
VIEW CLOCK
Redox (ORP)
Dual Redox
pH/Redox (ORP)
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.