Cooling bath thermostat

Model: KISS K25 Group: 2 Order No.: 2012.0022.98 E-class: 32-09-01-17
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Performance Characteristics

Cooling bath thermostats with insulated cooling baths are an economic solution for thermoregulation of objects directly in the thermostat bath. The units are therefore suitable for a number of typical heating and cooling tasks such as sample temperature control, materials testing, quality control, analyses, etc. Cooling circulator operates with natural refrigerants and are therefore offer an environmentally friendly solution to temperature control. In addition, cooling circulators are fitted with automatic refrigeration capacity adjustment, reducing energy consumption and waste heat down to the absolute essential. With low level protection and adjustable over heating protection the units fulfil the requirements of Safety Class III/FL according to DIN 12876. The thermostats can also be used for externally attached applications using the pump connections at the rear.

Functions overview

  • KISS temperature controller
  • Bright, large OLED display
  • Simple operation with menu navigation
  • Simultaneous display of setpoint, Tmin, Tmax and actual temperature
  • Status displays for pump, cooling and heating
  • Overtemperature and low level protection
  • Safety class III/FL (DIN 12876)
  • USB and RS232 interfaces
  • Autostart function for power failure
  • 3 colour versions available: grey (standard), blue, red

Product impressions


The new KISS controller combines state-of-the-art technology with simple operation and stylish design. KISS models are suitable for routine tasks in research and industry and are convincing as practice oriented basic equipment. Option: Pt100 sensor connection #10519 to display (not control) e.g. of the process temperature (only available factory fitted, additional charge).

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Temperature range -30...200 °C
Temperature stability ±0,05 K
Temperature display OLED Display
Alarm message optic, acoustic
Controller KISS
Safety class III / FL
Protection class IP20
Dimensions (W x D x H) 350 x 555 x 615 mm
Weight, net 39 kg

Heating capacity 1,8 - 2,1 kW
Cooling capacity
20 0,4
0 0,35
-10 0,27
-20 0,16



Refrigeration machine air-cooled, natural refrigerant
Refrigerant 1st stage R-290 (A3, H220)
Refrigerant quantity 1st stage 0,072 kg

Delivery capacity pressure pump max. 14 l/min; 0,25 bar
Delivery capacity suction pump max. 10,5 l/min; 0,17 bar
Pump connection (Option, #19607)
Pump speed adjustable no
Pump characteristics Pressure and suction pump, speed not variable

Interface digital USB (Device), RS232 Interface

Permissible ambient temperature 5...40 °C
Sound pressure level 50 dB(A)
Bath opening WxD/BD 290 x 329 / 200
Bath volume 23,5 l
Filling volume min. 15 l
Power supply 220-240V 1~/2~ 50/60Hz
Current consumption max. 10 + 2 A

Please take further technical information as well as information about the scope of delivery, accessories and peripheral devices from the PDF data sheet. In cases of doubt the details given in there apply. If nothing to the contrary is quoted then the performance data referred is at an ambient temperature of 20°C.

Please observe the notes on installation and/or the space requirements of our products.

The following voltage and frequency tolerances apply based on EN60034-1:
Voltage +/- 5% for a frequency tolerance at the same time of +/- 2%

Examples to illustrate this: Not permissible, for example. is -5% on the voltage and +2% on the frequency. Permissible, on the other hand, are tolerances of -5% on the voltage and -2% on the frequency.

We reserve the right to make technical changes and correct errors. Illustrations can deviate from the original.


Trolley for K20, K25, 220B, 225B

PT100 Sensor connection for OLÉ

Drain valve

Ball valve M16x1

Drain valve, universal

Adjustable base for 220B, 225B, K20, K25, 118A

Hose, pressureless, FKM-200-NW12

Hose, pressureless, PVC-60-NW12

Hose, pressureless, PVC-60-NW8

Hose, pressureless, NBR NW12

Hose, pressureless, NBR NW8

Hose, pressureless, S-180-NW12

Hose, pressureless, S-180-NW8

Hose, pressureless, FKM NW8

Insulated sleeving / f. tube NW12

Insulated sleeving

Drain hose, pressureless, T-180-NW8

Drain hose, pressureless, T-180-NW12

Hose MT-200-1-M16x1

Hose MT-200-1,5-M16x1

Hose MT-200-2-M16x1

Hose MT-200-3-M16x1

Hose MT-350-3-M16x1

Hose MT-350-1-M16x1

Hose MT-350-1,5-M16x1

Hose MT-350-2-M16x1

Insulated sleeving internal-Ø 42mm

Insulated sleeving/price per m D:15

Bath cover one piece 212B, 215B, K12, K15 - Bath cover front 220B, 225B, K20, K25

Bath cover one piece 220B, 225B, K20, K25

Bath cover back 118A, 220B, 225B, K20, K25

Bath cover back 118A, 220B, 225B, K20, K25

Bath bridge K12, K15, K20, K25

Heat transfer fluid M90.055/170.02

Heat transfer fluid M90.055/170.02

Heat transfer fluid M80.100/250.03

Heat transfer fluid M80.100/250.03

Heat transfer fluid P20.225/275.50

Heat transfer fluid P20.225/275.50

Heat transfer fluid M20.195/235.20

Heat transfer fluid M20.235.20

Heat transfer fluid M40.165/220.10

Heat transfer fluid M40.165/220.10

Heat transfer fluid M60.115/200.05

Heat transfer fluid M60.115/200.05

Heat transfer fluid M80.055.03

Heat transfer fluid M80.055.03

Adapter M16x1 f- M24x1,5 m

Adapter M16x1 f- R 1/2 f

Adapter M16x1 f - M16x1 f

Adapter M16x1 f - R1/2 m

Adapter M16x1 f - G3/4 f

Adapter M16x1 f - M30x1,5 m

Welding end M16x1

90° Adaptor M16x1 female - M16x1 male

Hose connector M16x1, NW 8

Hose connector M16x1, NW 12

Securing nut M16x1

Test tube rack type 1 made of stainless steel

Test tube rack type 2 made of stainless steel

Test tube rack type 3 made of stainless steel

Test tube rack type 4 made of stainless steel

Manually adjustable bypass M16x1 with connection for manometer

Factory calibration certificate – temperature stability to DIN 12876

Testing protocol FAT (Final Acceptance Test

Factory calibration certificate – absolute accuracy

Colour set RED for KISS Circulators

Colour set BLUE for KISS Circulators

Quotation request & Warranty

Are you interested in this product or would you like to take advantage of the free extended warranty? Please feel free to contact us.

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