

The PT80 circulation thermostat is an extremely quiet, energy-efficient and handy device that has been specially developed for small temperature control tasks in the laboratory. Unlike classic compressor-driven thermostats, the PT80 uses modern Peltier technology to operate thermoelectrically.
The environmentally friendly technology ensures extremely quiet and low-vibration operation, 50% lower energy consumption and completely eliminates the need for refrigerants. Yet rapid temperature control in a temperature range from 5 °C to 80 °C is still possible, not least due to the low filling volume of only 250 ml. With an accuracy of ±0.1 °C, the PT80 is ideally suited to high laboratory standards for the temperature control of polarimeters and refractometers. The PT80 is also very well equipped for effcient and environmentally friendly cooling of condensers (e.g. Liebig or reflux condensers) in thermal separation processes on a laboratory scale.
The easy-to-understand TFT display enables all relevant information to be clearly displayed. The temperature of the PT80 can be individually adjusted via a user-friendly touchscreen. The easily accessible functions and intuitive user guidance in the user menu ensure convenient handling.
The circulation thermostat can be easily controlled with the serial RS-232 interface. This enables effective data exchange as well as remote control via PC or direct control via the user interface of our Polarimeter P8000 series. PC networking also provides documentation of all relevant settings. The temperature of the PT80, for example, can be queried with the simplest programs. These networking functions even make the PT80 suitable for automated temperature control in the environment of laboratory 4.0 applications.
TEMPERATURE CONTROL RANGE | 5–80 °C |
ACCURACY OF TEMPERATURE CONTROL | ± 0.1 °C |
TEMPERATURE CONTROL RESOLUTION | 0.1 °C |
AMBIENT TEMPERATURE RANGE | 5 °C – 40 °C |
HEATING CAPACITY | 120 W |
COOLING CAPACITY AT 20 °C | 40 W |
PUMP PRESSURE | 110 mbar |
PUMP CAPACITY | 60 l/h |
FILLING VOLUME | 250 ml |
IP CODE | IP21 |
CLASS OF PROTECTION (DIN EN 61140) | III |
CLASSIFICATION (DIN 12876-1) | I; non-flammable liquids |
ELECTRICAL DATA | 100-240 V AC, 2,5 A | 50/60 Hz |
ELECTRONIC INTERFACE | RS-232 interface |
DEVICE DIMENSIONS (W X H X D) | 170 mm x 225 mm x 244 mm |
DEVICE WEIGHT | 2.7 kg (without mains adapter and mains cable |
TFT DISPLAY | |
DISPLAY TYPE | RGB TFT display |
DISPLAY RESOLUTION | 320 x 240 pixels |
DISPLAY DIMENSIONS (W X H) | 72.4 mm x 54.7 mm |
CONTROL | Resistive touchscreen (pressure sensor technology) |