ABB AX410, AX411, AX413, AX416, AX418, AX450, AX455 and AX456 Single and dual input analyzers for low level conductivity
Introduction
1.1System Description
The AX410 single input and AX411 dual input conductivity
analyzers have been designed for continuous monitoring and
control of low level conductivity.
The AX450 single input and AX455 dual input conductivity
analyzers have been designed to meet United States
Pharmacopoeia (USP 645) requirements for continuous
monitoring and control of low level conductivity.
They are available in wall-/pipe-mount or panel-mount versions
and can be used with either one or two sensors, each with a
temperature input channel. When used with two sensors,
readings can be compared to produce a range of extrapolated
values.
When making temperature compensated measurements, the
sample temperature is sensed by a resistance thermometer
(Pt100 or Pt1000) mounted in the measuring cell.
Analyzer operation and programming are performed using five
tactile membrane keys on the front panel. Programmed
functions are protected from unauthorized alteration by a
five-digit security code.
1.2PID Control – AX410 and AX450 Analyzers Only
The AX410 and AX450 single input conductivity analyzers
incorporate Proportional Integral Derivative (PID) control as
standard. For a full description of PID control, see Appendix B,
page 78.
1.3AX400 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.
Model Analyzer Description Sensor A Sensor B
AX410 Single Input 2-Electrode Conductivity (0 to 10.000 µS/cm) 2-Electrode Conductivity Not Applicable
AX411 Dual Input 2-Electrode Conductivity (0 to 10.000 µS/cm) 2-Electrode Conductivity 2-Electrode Conductivity
AX413 Dual Input 2-Electrode Conductivity and 4-Electrode Conductivity 2-Electrode Conductivity 4-Electrode Conductivity
AX416 Dual Input 2-Electrode Conductivity and pH/Redox(ORP) 2-Electrode Conductivity pH/Redox(ORP)
AX418 Dual Input 2-Electrode Conductivity and Dissolved Oxygen 2-Electrode Conductivity Dissolved Oxygen
AX430 Single Input 4-Electrode Conductivity (0 to 2.000 mS/cm) 4-Electrode Conductivity Not Applicable
AX433 Dual Input 4-Electrode Conductivity (0 to 2.000 mS/cm) 4-Electrode Conductivity 4-Electrode Conductivity
AX436 Dual Input 4-Electrode Conductivity and pH/Redox(ORP) 4-Electrode Conductivity pH/Redox(ORP)
AX438 Dual Input 4-Electrode Conductivity and Dissolved Oxygen 4-Electrode Conductivity Dissolved Oxygen
AX450 Single Input 2-Electrode Conductivity (USP) 2-Electrode Conductivity Not Applicable
AX455 Dual Input 2-Electrode Conductivity (USP) 2-Electrode Conductivity 2-Electrode Conductivity
AX456 Dual Input 2-Electrode Conductivity (USP) and pH/Redox(ORP) 2-Electrode Conductivity pH/Redox(ORP)
AX460 Single Input pH/Redox(ORP) pH/Redox(ORP) Not Applicable
AX466 Dual Input pH/Redox(ORP) pH/Redox(ORP) pH/Redox(ORP)
AX468 Dual Input pH/Redox(ORP) and Dissolved Oxygen pH/Redox(ORP) Dissolved Oxygen
AX480 Single Input Dissolved Oxygen Dissolved Oxygen Not Applicable
AX488 Dual Input Dissolved Oxygen Dissolved Oxygen Dissolved Oxygen
2Operation
2.1Powering Up the Analyzer
1. Ensure the input sensors 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 conductivity measurement readings screen
(Operating Page) is displayed as conductivity measuring
operation starts.
2.2Displays and Controls
The display comprises two rows of 41/2 digit, 7-segment digital
displays, which 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 the programming
information.
Measured Values
Conductivity.
Temperature.
Notes.
The displayed conductivity and temperature readings are the actual measured
values of the sample.
AX450 analyzers only – if A: Cond.Units is set to USP645 (Section 5.3), the
displayed conductivity reading is the uncompensated conductivity value of the
sample, i.e. its value at the displayed temperature.
Control Mode
Conductivity value.
Control mode.
Use the and
control.
keys to switch between manual (Manual) and automatic (Auto)
Note. Displayed only if Controller is set to PID – see Section 5.7. page 41.
Control Output
Conductivity value.
Control output (%), manual (Man) or automatic (Auto).
When Control Mode is set to Manual (see above), use the and
control output between 0 and 100%.
keys to adjust the
Note. Displayed only if Controller is set to PID – see Section 5.7. page 41.
Control Set Point
Conductivity value.
Control set point.
Use the and
conductivity.
keys to adjust the control set point between 0 and 250%
Note. Displayed only if Controller is set to PID – see Section 5.7. page 41
Temperature Compensated Conductivity Value – AX450 Analyzers Only
Notes.
This frame is displayed only if A: Cond.Units is set to USP645 – see Section 5.3.
page 21.
The displayed reading is the temperature compensated conductivity value i.e. the
value it would be at a sample temperature of 25ºC (77ºF).
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.
page 16.
Enable Cals. set to Yes (Section 5.3) – see Section 4.1. page 17.
Enable Cals. set to No (Section 5.3) and Alter Sec. Code not set to zero (Section 5.9)
see Section 5.1. page 19.
Enable Cals. set to No (Section 5.3) and Alter Sec. Code set to zero (Section 5.9) – see
Section 5.2. page 20.
Advance to entries 2 to 5.
Note. If no more entries are stored, the display shows No More Entries
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.
page 16.
Enable Cals. set to Yes (Section 5.3) – see Section 4.1. page 17.
Enable Cals. set to No (Section 5.3) and Alter Sec. Code not set to zero (Section 5.9)
see Section 5.1. page 19.
Enable Cals. set to No (Section 5.3) and Alter Sec. Code set to zero (Section 5.9) – see
Section 5.2. page 20.
Advance to entry 2.
Note. If no more entries are stored, the display shows No More Entries