Lab Companion AAH52362U, CW3-20 Heating Bath Circulator (20L)


Price $2,611.97
Est Delivery in 3-4 weeks after ordering

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The CW3-20 Heating Bath Circulator (20L) has external and internal circulation with powerful pumping capability.  This Model is specially designed for precise temperature control of external instruments or for immersion purposes using a powerful pump with five adjustable pressure steps.


  •  Temperature range from ambient +5 to 150
  •  Microprocessor PID control
  •  Three point temperature calibration / Automatic tuning / Automatic run
  •  Accurate, stable, and efficient temperature management by using a powerful variable-speed pump. (1 to 3 steps of pump for internal circulation and 4 to 5 steps for external circulation)
  •  Powerful pump pressure and flow rate throughout the whole temperature range.


  • Bright VFD display with quick adjustable dial knob. (0.1 resolution)
  • Dual wait on/off timer modes. (1 min. to 99 hr. 59 min.)
  • Convenient memory function of up to three frequently set temperature.
  • Corrosion-resistant, leak-proof, round-cornered, and easy-to-clean stainless steel bath with front access drain valve.
  • RS-232 interface for external control and data collection. (RS-232 to USB serial converter is provided.)
  • Side handles enables convenience handling and transport.


  • Isolated design of agitator, heater, and sensor by a ba e plate to minimize the turbulence in the bath fluid and also to protect users and samples against direct contact
  • Complete safety protection system with warning alarms. Low fluid level and dry-running, over-temperature, over-current.
  • Keypad lock function prevents accidental changes during operation.


  • Bath Volume (L / cu ft): 20 / 0.7
  • Working Temperature Range (C / F): Amb. +5 to 150 / Amb. +9 to 302
  • Temperature Stability (±C / F): 0.05/ 0.09
  • Pump
    • Max. Pressure, Max. Flow Rate: 5.9 PSI (406.8 millibar), 7.4 gallons / minute (28 liters / minute)
  • Dimension
    • Bath Opening / Depth (W×L, D) (mm / inch): 290×214, 200 / 11.4×8.4, 7.9
    • Overall (W×L×H) (mm / inch): 368×510×464 / 14.5×20.1×18.3
    • Net Weight (kg / lbs): 17.5 / 38.6
  • Electrical Requirements: 120V, 60 Hz, 8.6A
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