Walchem WCT310-1N2

The Walchem WCT310-1N2 is a conductivity controller engineered for cooling tower water treatment systems. It delivers bleed and feed control with dual biocide outputs, flow-interlocked relay logic, and alarm functionality. The unit operates on 120 VAC at 10 A, comes factory prewired, and mounts on a polypropylene panel with a graphite electrode and flow switch assembly (5 ft cable). This model has been superseded by the WCT410-1N2U, which adds USB datalogging and software upgrade capabilities.

– Technical Specifications

• Control Functions: Bleed & feed with 2 independent biocide outputs; alarm relay output
• Biocide Scheduling: User-selectable 1, 2, or 4-week cycles; supports one addition per day per cycle or up to 10 additions per day (daily cycle mode)
• Pre-bleeds and Lockout: Independent pre-bleed and lockout time configuration per biocide output
• Alarm Types: LOW ALRM or HI ALRM; LOW ALRM triggers at user-defined percentage below bleed set point
• Flow Interlock: All control outputs interlocked with flow switch input
• Set Point Protection: Access code protection available for set point parameters; read-only view mode allowed
• Electrode: Temperature-compensated carbon probe; cell constant 1.0
• Power Supply: 120 VAC, 10 A
• Inputs: Conductivity electrode, flow switch; optional flow meter input
• Outputs: Relay outputs (alarm, bleed, feed, biocide)

– Key Features

• Menu-driven programming interface for intuitive configuration
• Dual independent biocide control with flexible scheduling
• Flow-switch interlocked safety logic prevents equipment operation without flow
• Graphite electrode with factory compensation
• Polypropylene manifold panel construction

– Typical Applications

Cooling tower water treatment, industrial recirculating systems requiring automated conductivity management and biocide dosing.

– Compatibility & Integration

Graphite electrode assembly and flow switch supplied with 5 ft cable. Unit is discontinued; WCT410-1N2U offers equivalent core functionality with added datalogging and software upgrade support.