Control the Process. Understand the Plant.

Modern water treatment systems depend on automation.

But automation should do more than switch pumps on and off.

A well designed control system should protect equipment, maintain water quality, identify abnormal conditions and give operators enough information to understand what the process is doing.

Hydra-Clear designs water treatment control systems around Siemens PLC and HMI platforms.

What We Control

Systems can monitor and control:

• Pumps
• VSDs
• Automatic valves
• RO systems
• Softeners
• Filters
• Chemical dosing
• UV systems
• Tank levels
• Distribution systems
• Duty/standby equipment

Instrumentation

Depending on the process, systems can monitor:

• Flow
• Pressure
• Differential pressure
• Conductivity
• pH
• ORP
• Temperature
• Tank level
• UV intensity
• Chemical level

Control Philosophy

Before programming begins, the operating philosophy should be understood.

That includes:

• Start conditions
• Stop conditions
• Permissives
• Interlocks
• Alarm responses
• Equipment failure
• Duty changeover
• Low water quality
• Tank management
• Emergency shutdown

Siemens PLC & HMI

Our systems can incorporate Siemens PLC and HMI control with operator screens developed around the actual process.

The HMI should show useful information rather than simply replicating electrical switches on a screen.

BMS & SCADA Integration

Where required, Hydra-Clear systems can communicate with customer supervisory systems for:

• Plant status
• Alarms
• Water quality
• Flow
• Tank level
• Equipment condition

Data & Trending

Trending process data can help identify gradual performance changes such as:

• RO membrane fouling
• Increasing differential pressure
• Conductivity deterioration
• Increased water consumption
• Abnormal pump operation

You cannot optimise what you cannot see.

Talk to a Controls Engineer

Good automation doesn't replace understanding the process. It makes the process understandable.

Call 0800 999 6770