KNAUER AZURA CT 2.1 Column Thermostat

The KNAUER AZURA CT 2.1 is a cost-effective column thermostat designed for precise and stable temperature control in HPLC applications.

The instrument uses a microprocessor-controlled Peltier element, enabling both heating and cooling in the range of 5–85 °C. Its high temperature stability allows for programming linear and non-linear temperature gradients, improving separation performance.

For advanced applications, the system can be optionally equipped with an eluent pre-heating cartridge, ensuring consistent temperature conditions, improved selectivity, and better peak shapes.

Its compact design supports flexible integration and accommodates multiple columns.

Key Features

• Column thermostat for HPLC applications
• Temperature range 5–85 °C
• Peltier technology (heating and cooling)
• High temperature stability (±0.1 °C)
• Accurate temperature control (±0.2 °C)
• Programmable temperature gradients
• Optional eluent pre-heating
• Supports multiple columns
• Compact and robust design
• Built-in safety features

Technical Specifications

Thermostatting

• Technology: Peltier (heating & cooling)
• Temperature range: 5–85 °C
• Heating/cooling rate: 2 °C/min
• Accuracy: ± 0.2 °C
• Stability: ± 0.1 °C
• Air circulation: fan-assisted bidirectional flow

Column Compartment

• Max number of columns: up to 8
• Max length: 325 mm
• Max diameter: 35 mm
• Compatibility:
  • 125 mm × 4.6 mm ID (with precolumn)
  • 300 mm × 4.6 mm ID
  • 300 mm × 16 mm ID

Internal Dimensions

• 90 × 390 × 47 mm

Safety

• Self-check and auto-calibration at startup
• Adjustable shut-off temperature
• Leak sensor with acoustic alarm

Control & Communication

• LAN interface
• Optional Mobile Control (stand-alone operation)

Power & Dimensions

• Power supply: 90–230 V, 50–60 Hz
• Power consumption: 100 W
• Dimensions: 150 × 470 × 310 mm
• Weight: 8.4 kg

Optional Accessories

• Eluent pre-heating cartridge
  • for capillaries 0.1 mm / 0.18 mm ID