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RW3-0535 Refrigerated & Heating Bath Circulator (5L)

Price $5,370.98
Minimum Purchase:
1 unit

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The RW3-0535 Refrigerated & Heating Bath Circulator (5L) has rapid heating and cooling throughout the entire temperature range. Specially designed to be used with Refractometers and Viscometers, this model features accurate and stable temperature control capability even at very low temperatures (as low as -35C) by adopting a powerful pump for both external and internal circulation.


  • Temperature range: RW3-35 models from -35 to 150 C
  • Microprocessor PID control
  • Three point temperature calibration / Automatic tuning / Automatic run
  • Suitable for both internal and external bath environments due to reduced turbulence by using five-speed adjustable pump and built-in cooling coil. (1 to 3 steps of the pump for internal circulation and 4 to 5 steps for external circulation)


  • 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
  • Detachable condenser air-filter for easy maintenance of refrigerating efficiency
  • CFC-free refrigerant (R-507, R-404A) and a double service valve for leakage prevention
  • Quick-release front grill for easy cleaning of the condenser
  • 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 baffle 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): 5 / 0.2
  • Working Temperature Range (C / F): -35 to 150 / -31 to 302
  • Temperature Stability (±C / F): 0.05 / 0.09
  • Cooling Capacity
    • at -20C (-4F), W: 80
    • at 0C (+32F), W: 150
    • at +20C (68F), W: 280
    • Refrigerator: 1 / 2 LBP, R-404A
  • 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): 150×99, 160 / 5.9×3.9, 6.3
    • Overall (W×L×H) (mm / inch): 309×480×733 / 12.2×18.9×28.9
    • Net Weight (kg / lbs): 38 / 83.8
  • Electrical Requirements: 230V, 60Hz, 12.5A
Product Brochure
 Lab Companion AAH57141K, RW3-0535 Refrigerated & Heating Bath Circulator (5L)

RW3-0535 Refrigerated & Heating Bath Circulator (5L)