NB 9/20

UNSTIRRED WATER BATHSExcellent temperature distributionN-Prime™

Apparently simple, NB series of unstirred water baths is nevertheless controlled by N-Prime™ microprocessor system giving excellent temperature precision, assisted by the triple insulation, for this class of instrument.

Most of the footprint of the water bath is usable to accept samples, since there is no pump, circulator or heater inside the chamber. A convenient drain permits fast discharge of the water. Their large displays are easily visible from across the laboratory.



  • Two different useful volumes: 7 and 15 litres.

  • Temperature range: Ambient temperature + 5°C to 99,9°C.

  • Excellent temperature control of liquid for uniform and stable temperatures.

  • Data recording on memory stick by means of USB port up to 125 days.

  • Programmable delayed start function.

    Minimized risk of contamination by the rounded corners and smooth surfaces of the tank.

  • Convenient drain for discharging the liquid in the tank quickly.


  • Reliable and accurate N-Prime™ programmable PID microprocessor control system.

  • User friendly control panel including large bright LED displays for temperature and time.ocessor control system.

  • Easy programming with one button, just turn and push.

  • Angled front panel to protect the controller from accidental water spillage.

  • Efficient tank usage as there is no obstruction in the tank such as circulation pump or heater.

  • Footprint almost equal to the tank dimensions to save valuable bench space.


  • Password protected menu to secure the operation.

  • Programmable alarm limits.

  • Safety thermostat to prevent running dry and audible and visual alarms against over heating.

  • Seamless corrosion resistant stainless steel tank for a longer life.

  • Silicon sheet heaters surrounding the tank from three sides for uniform heating.

  • Triple insulation consisting of glass wool, aluminium layer and air gap for high efficiency.

  • Optional Wi-Fi connection for N-Mobile™



NB 9

NB 20

Tank Volume, litres



Useful Volume, litres



Temperature Range

Ambient Temp + 5°C / 99,9°C

Temperature Sensor


Control System

N-Prime™ Programmable Microprocessor


Displays for Temperature and Time

Temperature Set and Display Sensitivity


Temperature variation @37°C 

± 0,1°C*

Temperature fluctuation @37°C 

± 0,01°C*

Programmable Alarm Limits 

± 0,5°C /± 5°C


1 minute – 99,9 hours + Hold Position

Delayed Start Timer 

1 minute – 99,9 hours

Selectable Recording Frequency on Memory Stick

1-999 minutes

Internal Material 

Stainless Steel

External Material

Epoxy - Polyester Powder Coated Steel


K 04 286    Plexiglass lid for NB 9 (Resists up to 60°C)
K 52 007    Stainless steel lid for NB 9
K 04 289    Plexiglass lid for NB 20 (Resists up to 60°C)
K 52 003    Stainless steel lid for NB 20

K 52 008    Lid with 4 holes for NB 9 (Hole dia. 95 mm)
K 52 005    Lid with 4 holes for NB 20 (Hole dia. 95 mm)
K 52 006    Lid with 6 holes for NB 20 (Hole dia. 95 mm)
K 52 014     Lid with 8 holes for NB 20 (Hole dia. 95 mm)

A 08 051    Tube rack 52 x Ø13 mm, wide 70 mm
A 08 050   Tube rack 30 x Ø16 mm, wide 70 mm
A 08 021    Tube rack 27 x Ø18 mm, wide 70 mm
A 08 049   Tube rack 12 x Ø30 mm, wide 70 mm

R 01 113       2x1000ml Flask holder
R 01 116       4x500ml Flask holder



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