Relative Humidity and Temperature Probe HMP4 for high pressures Image Vaisala HUMICAP® Humidity and Temperature Probe HMP4 is designed for high-pressure applications such as compressed air systems in maritime, breathing air, and industrial applications, where measurement performance and chemical tolerance are essential. The HMP4 is part of the Indigo product family and compatible with Indigo500, Indigo300 and Indigo200 series transmitters and free Insight PC Software.Click here to download bid specs for USA. Buy Now Datasheet Contact us Order form Features RH accuracy up to 0.8 %RH, Temperature accuracy up to 0.1 °C (0.18 °F) Temperature measurement range -70 ... +180 °C (-94 ... +356 °F) Operating pressure 0 ... 10 MPa (0 ... 100 bar) Sensor purge provides superior chemical resistance Modbus RTU over RS-485 Plug & play compatible with Indigo™ series of transmitters Traceable calibration certificate: 5 points for humidity, 1 point for temperature Key benefits Proven Vaisala HUMICAP performance Vaisala is the original innovator of the thin-film capacitive humidity measurement technology, which has now become the industry standard in humidity measurement. Chemical purge minimizes effects of contaminants In environments with high concentrations of chemicals and cleaning agents, the chemical purge option helps to maintain measurement accuracy between calibration intervals. Flexible connectivity The probe is plug and play compatible with Vaisala Indigo series transmitters, can be used as a standalone digital Modbus RTU transmitter, or connected to Vaisala Insight™ PC Software. Indigo Selector Discover your ideal Indigo compatible probe and transmitter combinations with the Indigo Selector tool. Indigo Selector Product documentation Datasheets User guides Order form Technical notes More on Docs.vaisala.com More downloads Application Note: CompAir-Sampling-Cell-AppNote-B211229EN.pdf (1.37 MB) Comparison table: Comparison of Vaisala humidity and temperature instruments for demanding industrial applications (1.49 MB) Brochure: Vaisala Indigo Family brochure (1.24 MB) Brochure: Vaisala Indigo Family catalog (2.63 MB) Comparison table: Comparison of Indigo transmitters and Indigo compatible probes for humidity applications (1.49 MB) Pagination Next page ›› Further reading Tool Indigo Selector Discover your ideal Indigo compatible probe and transmitter combinations with the Indigo Selector tool. Learn more Calculator Humidity Calculator Vaisala Humidity Calculator makes your complex humidity calculations and conversions easy. It covers all popular parameters and is effortless to use. Calculate several humidity parameters based on only one known value and tolerance. Learn more Blog Indigo500 series dual-probe support Learn about the benefits of using two probes measuring either the same parameter or two different ones. Read more Blog What is a smart measurement probe and what makes it special? Environmental measurement devices are also becoming smart. Unlike in the past when measurement probes could not be used on their own, the new wave of smart measurement probes can operate independently without additional transmitters. Learn more
Application Note: CompAir-Sampling-Cell-AppNote-B211229EN.pdf (1.37 MB) Comparison table: Comparison of Vaisala humidity and temperature instruments for demanding industrial applications (1.49 MB) Brochure: Vaisala Indigo Family brochure (1.24 MB) Brochure: Vaisala Indigo Family catalog (2.63 MB) Comparison table: Comparison of Indigo transmitters and Indigo compatible probes for humidity applications (1.49 MB) Pagination Next page ››