Introduction
The AX400 Series of dual input analyzers incorporates the latest technology to provide a flexible, feature-packed device that satisfies a diverse range of applications. They are available in both wall-/pipe- and panel-mount formats. The wall-/pipe-mount version is rated to IP66/NEMA 4X, with particular attention paid to the ease of connection, making installation rapid and cost-efficient. The front of the panel-mount version is also rated IP66/NEMA 4X.
Dual Input Configurations: There are three permutations to select from: two conductivity inputs, two pH inputs, and a combined version incorporating both a conductivity and a pH input.
Key Features:
- Cost effective: Select from two input conductivity, two input pH/Redox (ORP), or combined pH/Redox (ORP) and conductivity in one instrument.
- Reduced installation cost: Easy access terminations and reduced panel space.
- Dual Conductivity: Offers Difference, Ratio, % Passage, % Rejection, and Inferred pH calculations.
- High functionality at minimum cost: Three alarms and two current outputs supplied as standard.
- Add-on option card: Provides flexible and versatile operation with maximum five alarm relays and four current outputs.
- On-line diagnostics: Provide assurance of performance, reducing operational costs.
- Versatile power supply options: 85V to 265V AC standard; 12V to 30V DC available as an option.
These analyzers offer high specification and high performance for conductivity and pH/Redox (ORP) measurements across all types of industry.
The AX400 Series Details
The AX400 Series analyzers are designed for flexibility and feature-packed performance. They are available in wall-/pipe-mount (IP66/NEMA 4X) and panel-mount formats. The panel-mount version's front is also rated IP66/NEMA 4X.
Dual Input Capabilities
The analyzers support three input configurations: dual conductivity, dual pH, or a combined conductivity and pH input.
AX411 Dual Input Conductivity
This version can be programmed as a conventional dual input analyzer or for calculated variables. The software allows for calculations like Difference, Ratio, % Passage, % Rejection, and Inferred pH. The pH versions support five recognized buffer choices (ABB, NIST, DIN, US Tech, Merck) and manual buffer value setting.
AX466 Dual Input pH
The AX466 enables two continuous pH measurements with simultaneous local display and retransmission. An optional card provides additional relays and retransmission outputs for pH values and sample temperatures.
AX416 Combined pH & Conductivity
This model measures both pH and conductivity in a single unit. With an optional card, it can retransmit pH, conductivity, and both sample temperatures. It includes five programmable alarms.
Standard Features
All dual input versions include two fully-isolated current outputs (assignable to measured parameter, sample temperature, or calculated variable) and three programmable relay set points. Features like a power-saving display, diagnostic current output, and smart software contribute to a low cost of ownership.
Versatile Power Supply Options
Standard supply is 85 to 265V AC. Optional supplies include 24V AC or 12 to 30V DC. The unit automatically recognizes the input voltage, reducing maintenance and the risk of damage from incorrect connection.
Advanced Function Card
An optional advanced function card adds two current outputs and two alarm relays, plus a real-time clock and logbook for pH measurements, enhancing versatility.
Display
The backlit, dual 5-digit, 7-segment LCD display provides simultaneous readouts of measured parameters and a 16-character text line for diagnostics or computed information.
Installation
Easy access terminations and a design that maintains IP rating when the terminal compartment cover is removed ensure rapid and cost-effective installation.
Sensing Systems
Conductivity Sensing Systems
ABB offers a wide choice of conductivity cells and sensing systems for applications ranging from ultra-pure water to potable water, wastewater, and concentrated acids. ABB cells are precision-made and require minimal calibration.
Ultra Pure and Low Conductivity
The ABB series of epoxy resin and stainless steel cells are compatible with the AX400 Series and have been used extensively for decades. Available in flow, screw-in dip, and withdrawable styles, these cells offer high accuracy, guaranteed cell constants, and long operational life.
Epoxy Cells
These cells are reliable and durable, virtually maintenance-free for clean water applications. Available with 0.1k and 1.0k cell constants, they offer 1% accuracy and are interchangeable without calibration. They are unaffected by metal pipework and operate from 0 to 100°C (32 to 212°F) and up to 6 bar (88 lb/in²) pressure.
Resin Columns
ABB manufactures resin columns for before-and-after cation column conductivity measurement, used for validating inferred pH measurements.
Stainless Steel Cells
Available in screw-in, flow, and withdrawable versions, with cell constants of 0.01k, 0.05k, and 0.1k. They provide accurate performance over the range 0 to 1000 µS/cm, operating from 0 to 100°C (32 to 212°F) and up to 10 bar (145 lb/in²) pressure. Hygienic-fitting stainless steel cells are available for USP24 requirements.
pH Sensors & Systems
ABB provides a wide choice of pH sensors and systems, from simple combination electrodes to high-pressure, high-temperature sensors, suitable for demanding applications.
AP100 Series
An established series with integrated glass reference and temperature sensors in a polypropylene body. Available in flow, insertion, dip, and submersible configurations for potable and wastewater industries. Features include a water-wash option for cleaning and choices of pH glass (general purpose and low resistance).
AP200 Series
Designed for industrial process applications requiring high temperature and high pressure. The 12mm (0.47 in.) glass sensor offers reliable, long-life service. Detachable cables simplify sensor replacement. Ryton flow and dip systems are available, with optional on-line cleaning.
AP300 Series
An economical and versatile series for less demanding industrial applications like rinse waters and wastewater. Available in Ryton and PVDF materials, they offer an integral connection cable and adapters for pipeline fitting, or can be used as a dip system.
TB55/56/57 Series
This series offers exceptional performance for demanding applications involving high temperatures, high pressures, and alkaline solutions. It features retractable, flow, and dip systems with unique glass-electrode formulations and wooden-junction reference-electrodes for arduous, heavy-duty use.
Specifications
Conductivity
| Parameter | Value |
|---|---|
| Range | Programmable 0 to 0.5 to 0 to 10000 µS/cm (with various cell constants) |
| Units of measure | µS/cm, µS/m, mS/cm, mS/m, MΩ-cm and TDS |
| Accuracy | Better than ±1% of reading |
| Operating temperature range | -10 to 150°C (14 to 302°F) |
| Temperature compensation | -10 to 150°C (14 to 302°F) |
| Temperature coefficient | Programmable 0 to 5%/°C and fixed temperature compensation curves (programmable) for acids, neutral salts and ammonia |
| Temperature sensor | Programmable Pt100/Pt1000 |
| Reference Temperature | 25°C (77°F) |
pH /Redox (ORP)
| Parameter | Value |
|---|---|
| Range | -2 to 16pH or -1200 to +1200mV |
| Minimum range | 2pH span or 100mV |
| Resolution | 0.01pH |
| Accuracy | 0.01pH |
| Temperature compensation | -10 to 150°C (14 to 302°F) Manual user-programmable |
| Temperature sensor | Programmable Pt100, Pt1000 & Balco 3kΩ |
Display
| Parameter | Value |
|---|---|
| Type | Dual 5-digit, 7-segment backlit LCD |
| Information | 16-character, single line dot-matrix |
Environmental Data
| Parameter | Value |
|---|---|
| Operating temperature limits | -20 to 65°C (-4 to 149°F) |
| Storage temperature limits | -25 to 75°C (-13 to 167°F) |
| Operating humidity limits | Up to 95%RH non condensing |
EMC
| Parameter | Value |
|---|---|
| Emissions and immunity | Meets requirements of: EN61326 (for an industrial environment), EN50081-2, EN50082-2 |
Analog Retransmission
| Parameter | Value |
|---|---|
| Number of signals | Two, fully-isolated outputs supplied as standard; Four, fully-isolated outputs when ordered with option card |
| Output current | 0 to 10mA, 0 to 20mA or 4 to 20mA; Analog output programmable to any value between 0 and 22mA to indicate system failure |
| Accuracy | ±0.25% FSD, ±5% of reading |
| Resolution | 0.1% at 10mA, 0.05% at 20mA |
| Maximum load resistance | 750Ω at 20mA |
| Configuration | Can be assigned to either measured variable or either sample temperature |
Relay, Power, and Safety
Relay Outputs
| Parameter | Value |
|---|---|
| Number of relays | Three, supplied as standard; Five, when ordered with option card |
| Set point adjustment | Fully programmable |
| Hysteresis | Programmable 0 to 5% in 0.1% increments |
| Delay | Programmable 0 to 60s in 1s intervals |
| Relay contacts | Single-pole changeover; Rating 5A, 115/230V AC, 5A DC |
| Insulation | 2kV RMS contacts to earth/ground |
Power Supply
| Parameter | Value |
|---|---|
| Voltage requirements | 85 to 265V AC 50/60 Hz; 24V AC or 12 to 30V DC (optional) |
| Power consumption | <10VA |
| Insulation | Mains to earth (line to ground) 2kV RMS |
Safety
| Parameter | Value |
|---|---|
| General safety | EN61010-1; Overvoltage Class II on inputs and outputs; Pollution category 2 |
Hazardous Area Approvals
| Approval | Status |
|---|---|
| ATEX Type n | Pending |
| FM non-incendive Class I Division 2 | Pending |
| CSA non-incendive Class I Division 2 | Pending |
Mechanical Data
Panel-mount Versions
| Parameter | Value |
|---|---|
| IP Rating | IP66/NEMA4X |
| Dimensions | 192mm high x 230mm wide x 94mm deep (7.56 in. high x 9.06 in. wide x 3.7 in. deep) |
| Weight | 1kg (2.2 lb) |
Panel-mount Versions (Front Only)
| Parameter | Value |
|---|---|
| IP Rating | IP66/NEMA4X (front only) |
| Dimensions | 96mm x 96mm x 162mm deep (3.78 in. x 3.78 in. x 6.38 in. deep) |
| Weight | 0.6kg (13.2 lb) |
Electrical Connections
Diagrams illustrate electrical connections for Wall-/Pipe-mount and Panel-mount instruments. Terminal Block A, Terminal Block C (Analog Option Board), and Terminal Block B are detailed. Terminal Block B provides specific pin assignments for Conductivity and pH/Redox (ORP) measurements, including options with and without Solution Earth.
Ordering Information
A table details configuration options for Dual Input Analyzers for pH and Conductivity Models AX411, AX416 & AX466. Options include First Process Variable (PV1), Second Process Variable (PV2), Enclosure Types (European and N. American), Advanced Functions (Basic and Advanced), Power Supply, and Manual Language. Note: Conductivity must be selected for PV1 when a combined conductivity and pH/Redox (ORP) version is required.
Sales & Customer Support
ABB has Sales & Customer Support expertise in over 100 countries worldwide. Visit www.abb.com.
ABB Limited, Oldends Lane, Stonehouse, Gloucestershire, GL10 3TA, UK. Tel: +44 (0)1453 826661, Fax: +44 (0)1453 827856.
ABB Inc., 2175 Lockheed Way, Carson City, NV 89706, USA. Tel: +1 775 883 4366, Fax: +1 775 883 4373.
The Company's policy is one of continuous product improvement, and the right is reserved to modify the information contained herein without notice. Printed in UK (05.02) © ABB 2002
