ABB AX411/511010/STD Single and dual input analyzers

ABB  AX411/511010/STD   Single and dual input analyzers

Plug-and-produce expanded control

An advanced function card provides an additional two current

outputs and two further alarm relays that can be assigned to

either measured values or sample temperature.

ABB plug-and-produce software automatically reconfigures

the analyzer if an option board is added later. No user

programming is necessary.

A real-time clock and logbook are also included, making the

full-facility versions extremely powerful and versatile

Significantly reduced

maintenance costs

The AX400 analyzers are supplied as standard for 85 to

265 V AC operation. There are no inner switches to set.

They can also be provided for 24 V AC or 12 to 30 V DC supply

and recognize automatically which of the two supplies is

being used. 24 V DC operation reduces maintenance costs

significantly by negating the need for costly, yearly safety

tests to ensure compliance with safety procedures

Energy saving display

The backlit display has been designed to operate in all types

of environments and shows both the measured parameter(s)

and, on a separate 16-character display line, diagnostic and

computed information.

On dual-input analyzers both measured parameters are

displayed simultaneously.

For conservation of energy, the backlight can be set to switch

off automatically after 60 s of inactivity.

Single and dual input analyzers

Both single and dual-input analyzers provide accurate

measurement of low-level conductivity and can be configured

for ranges in µS cm–1. µS m–1. mS cm–1 and mS m–1.

Alternatively, the instrument can be set up for resistivity in

MW-cm, total dissolved solids and salinity.

In addition, the dual-input analyzer calculates, displays and

transmits:

• Ratio of cell 1 / cell 2

• Difference cell 1 – cell 2

• % Passage (cell 1 / cell 2) x 100

• % Rejection (1 – [cell 1 / cell 2]) x 100

• Inferred pH

These facilities are invaluable tools for demineralization and

reverse osmosis and a host of industrial processes.

Easy access installation terminals

Easy access to the terminations ensures rapid and cost

effective installation. The wall-/pipe-mount version has been

designed to ensure that cable connection is simple and

convenient. Ingress protection of the electronics section is

retained even when the terminal compartment is opened.

Cation conductivity and

inferred pH measurement

In low conductivity, ammoniated boiler waters, the AX411

analyzer can calculate an inferred pH measurement from the

conductivity and a preset ammonia concentration. With this

method, one AX411 provides cation conductivity, a direct

output of pH, reduced cost and none of the maintenance

associated with pH electrodes.

Self-monitoring of the validity of the pH measurement is

achieved by checking that an after-cation conductivity value

is sufficiently low. This measurement is provided by the

second input of the AX411 analyzer. Alarm contacts can be

configured for cation conductivity, invalid pH and exhausted

resin.

AX410 integral P, PI and PID control

The single input AX410 analyzers incorporate three-term PID

Control offering three modes of sophisticated control:

analog, pulse length (time proportional) and pulse frequency.

These are supplied as standard and can be operated in direct-

or reverse-acting mode, depending upon the application.