Envco – Environmental Equipment

Three probes to choose from
The HMP75 is a general purpose probe for humidity measurements between -20 and +60 °C. The HMP76 is a long, stainless steel probe for humidity measurements between -50 and +120 °C. It is especially suitable for spot-checking in ducts. The HMP77 is a small probe at the end of a 5-meter cable. The probe is ideal for difficult-toreach areas and for on-site calibration of Vaisala's process transmitters. The measurement range is for temperatures up to +180 °C. One or two probes can be connected simultanelusly. In addition, the HM70 supports the use of Vaisala's dewpoint, carbon dioxide and moisture in oil probes, allowing measurements in multiparameter applications.

Easy-to-use user interface and three-variable display
The HM70 features a multilingual, menu-based user interface, and a clear graphical LCD display. Overall three measurement parameters can be displayed and logged into the meter's memory at the same time. An analog output option is also available.

Proven HUMICAP® technology
The HM70 incorporates the latest generation of the Vaisala HUMICAP® Sensor. Its proven reliable and high performance humidity measurement ability is combined with better then ever long-term stability. Additionally, a very chemical durable sensor is available to provide accuracy that lasts in demanding conditions.

Stable performance in demanding applications
The chemical purge option maintains measurement accuracy in environments with high concentrations of chemicals. The sensor preheat option reduces measurement delays by keeping the sensor dry when the probe is inserted into hot and humid processes.

Calibration
The meter is calibrated at the factory against traceable standards, and delivered with a calibration certificate. The HM70 is also available with accredited calibration. The HM70 probes can be sent to a Vaisala Service Center for a traceable recalibration.

MI70 Link
The optional MI70 Link Windows® software and the USB connection cable form a practical tool for transferring logged data and real time measurement data from the HM70 to a PC.