The BK40 M bath is an instrument used to calibrate transducers, RTD and temperature-measuring sensors in the field and in the laboratory. The possibility to generate positive and negative temperature ramps makes it suitable for use in calibrating and testing thermostats.

The BK40 M bath consists of a stainless tank with capacity of 10 litres, useful height 340 mm and diameter 85 mm. The bath is equipped with a stainless steel mixer with electrical motor power, a safety thermostat, drain cock and overflow drain pipe. BK40 M is equipped with a new PID microprocessor controller with a resolution up to 0.01 °C, setting of the standard of measurement in °C, °F or K, programming of ascent/descent ramps and storage of the thermostats’ operative temperature. The instrument is also equipped with an acquisition card having two adjustable inputs (Pt100 3/4 wires; thermocouples: J, K, N, R, S) with bushes fitted with gold-plated contacts and automatic compensation of the cold junction.

De BK40 M-TR is a smaller version.