HD 9220 MICROPROCESSOR PRESSURE AND TEMPERATURE GAUGE

The HD 9220 is a portable instrument for measuring pressure and temperature. Pressure and temperature probes may be connected to the instrument. Pressure and temperature are the most important variables in chemical and physical processes. The HD 9220 enables both variables to be measured with an excellent degree of precision in a range which is substantially limited only by the capacity of the probes. As the probes are interchangeable the most suitable combination for all applications may be chosen without requiring recalibration. Probes may be connected for measuring absolute pressure (with reference to a vacuum), pressure relative to the atmosphere. For temperature measurements the TP9...series of temperature probes is used in the versions for immersion, for surface contact measurements, or with a penetration point. The temperature probes have a Pt100 platinum sensor. The liquid or gas under pressure is in contact with the container of AISI 303 stainless steel, the alumina membrane and the Viton gaskets, so excellent compatibility with most industrial fluids and gases is ensured. Calibration of the offset, the full-scale value, the thermal drift and the automatic identification of the full-scale value of the probe is accessible and adjustable inside the probe itself.