Heating and Cooling Thermostat CH-3

CH-3 is specially designed for heat stabilisation of materials at temperatures from -3°C to +150°C.

To save valuable laboratory space, the combi unit consists of two independent cooling and heating blocks.

*The item number only includes the basic unit (104.1815).
The corresponding blocks must be ordered separately (see technical data).

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Heating/Cooling Block CH-3

Space-saving thermostat with many block variants. The blocks for the two block positions are variable and must be ordered separately (see technical data).

Separating the cooling and heating parts increases the life of the instrument and speeds up the temperature change after a programme change.

The left part of the front keyboard is responsible for setting the cooling parameters and the right part for setting the heating parameters.
Both parts can be regulated independently of each other.

Thus, up to 16 programmes can be carried out, including temperature and time in each programme.
Peltier technology is used for cooling below room temperature. PCB is used for heating up to +150°C.

Block variants

(see technical data for detailed description)

Heating Block
Temperature setting range	+25°C to +150°C
Temperature control range	5°C above ambient to +150°C
Setting resolution	1°C
Temperature stability	±0.1°C
Temperature calibration coefficient range	0.936 - 1.063 (± 0.063)
Cooling Block
Temperature setting range	–3°C ... +20°C
Temperature control range	23°C below ambient ... 5°C below ambient
Setting resolution	0.1°C
Temperature Stability	±0.1°C
General Technical Data
Digital time setting	1 min–99 hrs 59 min (increment 1 min)
Timer sound signal	Yes
User adjustable programs (temperature and time)	16 (heating) + 16 (cooling)
Display	LCD
Overall dimensions (W × D × H)	295 х 285 х 220 mm
Weight	5.6 kg
Power supply	230 V, 50/60 Hz
Input current/power consumption	1.8 A / 430 W