Introduction
ALERT2000 is a chemical analyser for continuous
on-line monitoring of industrial processes, water (drinking water,
rivers, sea-water, sewage) and effluents. It offers a flexible
system which can be supplied for local measurement of a single
chemical, or as a much larger network of multichannel systems
for remote monitoring over a wide geographical area. It is a
combination of many years' experience in the design and manufacture
of laboratory analysers, in automatic data acquisition, computer
control and telemetry systems.
Applications
The ALERT2000 has a wide range of applications in the field
of on-line monitoring including
- Waters
- Food and drinks
- Industrial process monitoring
- Pharmaceuticals
- Quality control
Typical applications include monitoring of waste
water, effluents or industrial processes.
The instrument
The ALERT2000 Industrial monitor is designed for 'on-line' analysis.
Based on proven technologies, ALERT2000 systems are either single
or multi-channel, free standing and self-contained. The Analytical
Unit comprises a multi-port valve precision pump unit, chemistry
manifold, a choice of detector and a pre-programmed data base
providing a range of control options and graphical indicators.
Operation
A continuous sample is introduced via a diaphragm pump of suitable
flow-rate into a weir. At intervals the sample and calibration
standards are pumped at selected flow rates into the chemistry
stream, where they may be diluted and mixed with reagents to
form a colour complex which is measured at either visible or
U.V. wavelengths in a colorimetric detector. The analogue amplifier
signal is received by the Data A-D converter, analysed, and continuously
printed out showing sample concentration levels. From the processed
data received, if concentration limits are exceeded, corrective
measures will be taken by the process pumps to restore acceptable
operating conditions.
System control
At the heart of all ALERT2000 systems is an industrial PC. This
is an all-solid state system consisting of a single board computer
(with built-in Flash/ROM disk and watchdog), together with one
or more intelligent analogue cards and a mix of other industry
standard input/output, control and communication interface cards,
depending on the application. Solid state relays and optional opto-isolated
digital inputs and outputs allows the computer to operate valves,
pumps and power supplied to directly control the analyser, activate
alarms and so on. For controlling industrial processes, three-term
or PID functions may be added.
System configuration
Each ALERT2000 unit is tailored to meet individual requirements.
There are three basic configurations:
- Monitoring locally with ALERT2000 having built-in keypad
and VDU.
- Monitoring locally with connection to Homebase computer via
RS232 (single ALERT2000 over distances of up 100 meters) or
RS422/RS485 (multidrop over distances up to 1200 meters).
- Monitoring over long distance using single or multiple ALERT2000
systems connected to a Homebase via telephone links.
The above configurations define how ALERT2000 will
communicate with the operator and depends on how close the unit
is to the monitoring point. Remote ALERT2000 systems use our
own ReMAC (Remote Monitoring and Control) software for communication
with Homebase. The design of the system depends on the number
and type of tests that are being undertaken. Systems are offered
for 1, 2, 3 or 4 channels; but more may be added if required.
Intermittent operation is another option (to reduce reagent use)
in which samples may be analysed at programmable intervals. All
systems can be fitted with audible and/or visible alarms and,
in the case of remote monitors, automatic dial-in to Homebase.
System options
Other additions to the system include self-diagnostics tests,
reagent level monitoring and leak detection. On the communications
side we can offer radio links to the telephone network. ReMAC
allows access into ALERT2000's data logs and audit trails. Files
of data can be down-loaded (automatically if desired) to Homebase,
and graphic displays of past and current test levels may be displayed
and plotted. ReMAC also allows complete control of the remote
site by re-setting limits, and enabling and disabling of functions
etc.
Standard chemistry methods
Data sheets are available and supplied with every method. Full
information on the make-up of standards, preparation of individual
chemicals and wash materials, sampler settings, optical filters
and manifold connections is included. Method development is available
for specific applications.
Servicing
The design of Series 2000 analysers mean that your servicing
routine is minimal. Only the regular change of pump tubes by
the user is required for routine operation. Annual and bi-annual
service contracts will keep your instrument professionally maintained.
Installation and training
On site installation and training in the use of the systems
is available. Contact Burkard Scientific for full details.
Consumables
The company maintains a full range of consumables and spares
for ALERT2000 process analysis systems.
Download the full