CH 3-150, Heating and cooling thermostat, Combitherm-2


Combitherm-2 CH 3-150 is specially designed to thermostabilise materials at temperatures from –3°C to +150°C according to  methods of analysis. To obtain useful functionality and decrease foot-print of instruments Combitherm-2 consists of 2 independent cooling and heating plug-in thermoblocks combined in a common electronic circuit board as well as inside a common external body. The left part of the front keyboard is responsible for setting parameters for cooling plug-in blocks and the right part — for heating plug-in blocks. Both of them are regulated independently and can realize up to 16 programs including temperature and time in each program. Peltier technology is used for cooling below room temperature; PCB is used for heating till +150°C.

Separation of cooling and heating parts from each other increases durability of the instrument and speed of temperature changing after setting a new program.

Different block types can be provided on request


Heating block Temperature setting range +25°C ... +150°C
Heating block Temperature control range 5°C above ambient ... +150°C
Heating block Setting resolution 1°C
Heating block Stability ±0.1°C
Temperature calibration coefficient range 0.936...1.063 (± 0.063)
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Cooling block Temperature setting range –3°C ... +20°C
Cooling block Temperature control range 23°C below ambient ... 5°C below ambient
Cooling block Setting resolution 0.1°C
Cooling block Stability ±0.1°C
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Digital time setting 1 min–99 hrs 59 min (increment 1 min)
User adjustable programs (temperature and time) 16 (heating) + 16 (cooling)
Display LCD
Overall dimensions (W×D×H) 295х285х220 mm
Weight 5.6 kg
Power supply 230 V, 50/60 Hz
Input current/power consumption 1.8 A / 430W

Cat. Nr.

CH 3-150 without blocks
BS-010418-AAA 230VAC 50/60Hz Euro plug
---------------- Optional accessories
BS-010418-AK B2-50
BS-010418-BK B10-16
BS-010418-CK B6-25
BS-010418-DK B23-1.5
BS-010418-EK B18-12
BS-010418-LK B10-13
BS-010418-KK B5-29
BS-010418-NK IQ OQ document
BS-010418-OK PQ document


  • B23-1.5

    23 sockets for 1.5 ml microtest tubes depth 35 mm

  • B10-16

    Ø16 mm x 10 sockets depth 56 mm

  • B6-25

    Ø25 mm x 6 sockets depth 40 mm

  • B2-50

    Ø48 mm x 2 sockets depth 58 mm

  • B18-12

    18 sockets for Ø12x75 mm round bottom tubes, depth 58 mm

  • B10-13

    Ø13 mm x 10 sockets, flat bottom, depth 30 mm

  • B5-29

    Ø29 mm x 5 sockets, flat bottom, depth 40 mm


Frequently asked questions

Can one and the same block heat and cool?

No, one block of CH3-150 is for heating with a temperature range from +25C to +150C and the other block is for cooling with a temperature range from -3C to +20C