Low Temperature Bath NCB-3120 Series

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Programmable Precision Low Temperature Bath

Model NCB-3120・3220・3320

■ High-precision temperature control of ±0.03°C over a wide operating range
■ Programmable features provide flexible and customizable operation

  • Uses an environmentally friendly refrigerant with a low Global Warming Potential (GWP).
  • Equipped with a 4.3-inch color LCD that provides greatly improved visibility and intuitive operation.
  • Delivers precise temperature control of ±0.03°C across a wide operating range.
  • Equipped with a standard USB interface. ESMon2026 measurement and control software enables remote configuration and processing of temperature trend data on a PC and is available for download.
  • Supports precise ramp-up and ramp-down temperature programming. Up to seven programs can be stored, each containing up to ten segments, and programs can be linked for extended control sequences.
  • Selectable end modes include stop, temperature hold, and automatic return to initial settings.

Widely Used in Environments Where High-Precision Temperature Control is Required

  • Ideal for organic synthesis involving highly heat-sensitive intermediates or reagents, as well as reactions that utilize expensive catalysts or complex substrates.
  • Suitable for processes requiring extremely high temperature sensitivity.
  • Research and development using costly reagents, as well as GMP-compliant pharmaceutical manufacturing processes.
  • Applicable to cell culture procedures and protein crystallization reactions.
  • Calibration and verification of temperature sensors and reference thermometers.

Intuitive Control Panel

  • Easy program entry and operation using the numeric keypad.

Operating Patterns (User Programs)

Alarm and Safety Features, External Circulation Capability, and PC Communication Interface

The unit is equipped with a self-diagnostic function that stops operation and triggers an alarm when an abnormal condition is detected. A stop-valve nozzle is provided to enable external circulation. By using the optional STP-200 temperature sensor (Cat. No.113620), temperature control of external equipment is also possible.

① External temperature sensor terminal
② USB-B terminal
③ Stop valve nozzle

Remote Control and Data Processing via Communication Software

  • The measurement and control software enables remote temperature operation and trend data processing when connected to a PC.
  • Please note that a communication cable is not included. A USB cable (Type A male to Type B male) is required and must be prepared separately.
  • The communication software ESMon2026 will be available soon.
Supported OSMicrosoft Windows® 11
Communication InterfaceUSB Type-B
USB cable (Type-A male to Type-B male) is not included and must be purchased separately.

Specifications

ProductProgrammable Precision Low Temperature Bath
ModelNCB-3120NCB-3220NCB-3320
Cat. No.286250 286260 286270
Circulation methodClosed circulation method
Temperature control range－20 to 80℃－30 to 80℃－20 to 80℃
Temperature control accuracy±0.03℃
External circulation capacityMax. discharge rate: 5.2L/min (50Hz, water), Max. lifting height: 2.9m (50Hz, water)
Temperature rampHeating: 1.3℃/min or less, Cooling: 0.4℃/min or less (40→0℃), 0.6℃/min or less (5→－15℃), 0.4℃/min or less (－15→－20℃)Heating: 0.9℃/min or less, Cooling: 0.3℃/min or lessHeating: 0.5℃/min or less, Cooling: 0.2℃/min or less
Cooling capacity 120℃ 340Ｗ (292kcal/h)20℃ 480Ｗ (412kcal/h)20℃ 610Ｗ (524kcal/h)
Cooling capacity 2－10℃ 240Ｗ (206kcal/h)－10℃ 350Ｗ (301kcal/h)－10℃ 420Ｗ (361kcal/h)
Temperature controlPID control, SSR output (platinum resistance thermometer Pt100 ohms)
Setting/displayMembrane keypad input, min. setting digit 0.01℃ / digital display
Program functions1. Constant value operation (normal mode) 2. Auto-start 3. Auto-stop (1 minute to 99 hours 59 minutes) 4. User program 7 patterns (1 pattern: max. 10 segments, 1 minute to 99 hours 59 minutes/1 segment)
Safety featuresSelf-diagnosis function (low water level, sensor abnormality, SSR failure, overheating, heater disconnection, cooling failure, power failure alarm, program ramp failure), Earth leakage/overcurrent breaker, Refrigerator overload relay
External input/outputUSB communication Type-B terminal, External temperature sensor terminal
Temperature sensorPlatinum resistance thermometer JPt 100 ohms
Stirring in bathWater jet flow stirring
Bath materialStainless steel
Inner bath dimensions (mm)250W x 295D x 180H310W x 400D x 180H430W x 517D x 180H
Inner bath effective dimensions (mm)215W x 135D x 160H280W x 240D x 160H400W x 354D x 160H
Bath capacity13L23L41L
External circulation nozzleClosed circulation system, Outlet 10.5mm OD hose port (Rc1/4, w/ stop valve), Inlet 10.5mm hose port (Rc1/4)
Cooling coilStainless steel
Refrigerator/refrigerantAir-cooled, output 450W / R452AAir-cooled, output 400W / R407CAir-cooled, output 400W / R452A
Ambient temperature range5 to 30℃
Power input19.5A, 1.95kVA20A, 2kVA
Supply voltage100VAC 50/60Hz
WeightApprox. 46kgApprox. 48kgApprox. 59kg
Outer dimensions (mm)622(647)W x 394(444)D x 522H394W(419) x 510(539)D x 848H515(539)W x 632(672)D x 956H
  • Performance values are measured under the conditions of an ambient temperature of 20°C, rated power supply voltage, 50 Hz, using water or ethanol as the heat transfer fluid, and with no load applied.
  • The temperature control accuracy may vary depending on the specific heat and viscosity of the circulating fluid, ambient temperature, and set temperature conditions. ±0.03°C accuracy is a guaranteed value under the conditions of an ambient temperature of 20°C, fluid temperature of 40°C, rated power supply voltage, using water as the heat transfer fluid, with the lid closed, and with no load.
  • When setting the fluid temperature below 10°C, please use a low-temperature heat transfer fluid. When the bath is operated without the lid, the temperature control range is –20 to 70°C at an ambient temperature of 20°C (for model NCB-3320).
  • Dimensions shown in parentheses ( ) include protrusions.
  • The power plug is not included.

Optional Parts

■ Cold Insulation Hose

Prevents condensation during cooling water circulation and reduces loss of cooling efficiency.
Tube inner diameter: 9mm / Applicable temperature range: –30 to 80°C / Pressure tolerance: 0.1MPa / Material: Chloroprene rubber.

Cat. No.Length
1126901m
1127002m
1744205m
■ Clamp Set

Use when immersing flasks or other vessels in the bath.
Specification: Tapered female thread Rc3/8
Cat. No. 164500

■ External Temperature Sensor

Used to control the bath temperature according to the temperature at the circulation destination.
Model: STP-200
Cat. No. 113620

Data

■ Cooling capacity curve

■ Heating / Cooling curve